2000_TI_Power_Management_Products_Vol_1 2000 TI Power Management Products Vol 1
User Manual: 2000_TI_Power_Management_Products_Vol_1
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"TEXAS
INSTRUMENTS
Power Management
Products
2000
Analog and Mixed Signal
========~====~~
General Information (Vol. 1)
I Linear Voltage Regulators
Shunt Regulators
I Precision Virtual Grounds
Mechanical Data
General Information (Vol. 2)
Processor PS Controllers
Switching PS and DC/DC Converters
MOSFET Drivers
Supervisors
Mechanical Data
General Information (Vol. 3)
Power Distribution Switches
LED Drivers
Voltage Rail Splitters
Special Functions
Mechanical Data
Power Management Products
Data Book
Volume 1
Literature Number: SLVD003
•
TEXAS
INSTRUMENTS
Printed on Recycled Paper
IMPORTANT NOTICE
Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products
or to discontinue any product or service without notice, and advise customers to obtain the latest
version of relevant information to verify, before placing orders, that information being relied on
is current and complete. All products are sold subject to the terms and conditions of sale supplied
at the time of order acknowledgement, including those pertaining to warranty, patent
infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the
time of sale in accordance with TI's standard warranty. Testing and other quality control
techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing
of all parameters of each device is not necessarily performed, except those mandated by
government requirements.
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE
POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR
ENVIRONMENTAL DAMAGE ("CRITICAL APPLICATIONS"). TI SEMICONDUCTOR
PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR
USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS.
INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY
AT THE CUSTOMER'S RISK.
In order to minimize risks associated with the customer's applications, adequate design and
operating safeguards must be provided by the customer to minimize inherent or procedural
hazards.
TI assumes no liability for applications assistance or customer product design. TI does not
warrant or representthat any license, either express or implied, is granted under any patent right,
copyright, mask work right, or other intellectual property right of TI covering or relating to any
combination, machine, or process in which such semiconductor products or services might be
or are used. TI's publication of information regarding any third party's products or services does
not constitute TI's approval, warranty or endorsement thereof.
Copyright © 1999, Texas Instruments Incorporated
Printed in U.S.A. by
Von Hoffmann Graphics
Owensville, Missouri
INTRODUCTION
The Texas Instruments 1999 Power Management Products Data Book Set showcases TI's broad
portfolio of analog components for power supply designs. Featured in this set are most of the
components previously found in the 1996 Power Supply Circuits Data Book, the new and exciting power
management products introduced since then, and other components useful for power supply designs.
The set consists of three product area specific volumes:
•
Power Management Products, Volume 1:
Linear voltage regulators
Shunt regulators
Voltage references
Precision virtual grounds
•
Power Management Products, Volume 2:
Processor power supply controllers (DSP and CPU)
Switching power supply controllers and DCIDC charge pump converters
MOSFET drivers
Supervisory circuits
•
Power Management Products, Volume 3:
Power distribution switches
LED drivers
Voltage Rail splitters
Special Functions
More than a collection of data sheets, this data book set is a tool for locating the best power management
components for a successful design effort. It is structured to help you quickly find the devices best suited
to your application. The set contains:
•
An alphanumeric index at the beginning of each book to make finding known part numbers simple.
•
Product selection guides with a condensed view of parametric information organized to help you
choose the devices that most closely fit your needs.
•
Key specifications and features presented for easy comparison.
•
A section on mechanical specifications for all packages used with Texas Instruments power
management devices.
While this data book offers design and specification data only for power management products,
complete technical data for any TI semiconductor product is available from your nearest TI Field Sales
Office, local authorized TI distributor, or from the TI web site at:
http://www.ti.com/sc
We believe you will find the 1999 Power Management Data Book set to be a valuable addition to your
collection of technical literature.
v
vi
General Information (Vol. 1)
I Linear Voltage Regulators
IShunt Regulators
I Precision Virtual Grounds
•
•
•
Mechanical Data
General Information (Vol. 2)
..
Processor PS Controllers
•
Switching PS and DC/DC Converters.
MOSFET Drivers
..
Supervisors
Mechanical Data
General Information (Vol. 3)
Power Distribution Switches
LED Drivers
Voltage Rail Splitters
Special Functions
Mechanical Data
1-1
•
G)
CD
:::s
CD
;
--.....:::s
o...
3
a_.
o
:::s
.-..
.-~
1-2
ALPHANUMERIC INDEX
LM237 ............................. 2-409
LM337 ............................. 2-409
LT1054 ............................ 8-171
SG2524 ............................ 8-97
SG3524 ............................ 8-97
TL317 ............................. 2-415
TL430 ............................... 3-3
TL431 ............................... 3-9
TL431A .............................. 3-9
TL494 .............................. 8-111
TL494A ............................ 8-121
TL499A ............................ 8-129
TL594 ............................. 8-137
TL598 ............................. 8-149
TL1431 ............................. 3-27
TL750L05 .......................... 2-421
TL750L08 .......................... 2-421
TL750L10 .......................... 2-421
TL750L12 .......................... 2-421
TL750M05 ......................... 2-429
TL750M08 ......................... 2-429
TL750M10 ......................... 2-429
TL750M12 ......................... 2-429
TL751 L05 .......................... 2-421
TL751 L08 .......................... 2-421
TL751L10 .......................... 2-421
TL751L12 .......................... 2-421
TL751 M05 ......................... 2-429
TL751 M08 ......................... 2-429
TL751M10 ......................... 2-429
TL751M12 ......................... 2-429
TL78Q-05 .......................... 2-441
TL780-12 .......................... 2-441
TL780-15 .......................... 2-441
TL783 ............................. 2-449
TL2217-285 ....................... 2-533
TL2218-285 ........................ 16-7
TL2218-285Y ....................... 16-7
TL5001 ............................. 8-79
TL5001A ............................ 8-79
TL5001Y ............................ 8-79
TL7700 ........................... 10-101
TL7702A ........................... 10-91
TL7702B .......................... 10-113
TL7705A ........................... 10-91
TL7705B .......................... 10-113
TL7709A ........................... 10-91
TL7712A ........................... 10-91
TL7715A ........................... 10-91
TL7726 ............................. 16-3
TL7757 ........................... 10-123
TL7759 ........................... 10-133
TL7770-5 ......................... 10-139
TL7770-12 ........................ 10-139
TL-SCSI285 ....................... 2-527
TLC5904 ........................... 14-3
TLC7701 ........................... 10-9
TLC7725 ........................... 10-9
TLC7703 ........................... 10-9
TLC7733 ........................... 10-9
TLC7705 ........................... 10-9
TLE2425 ............................. 4-3
TLE2425Y ........................... 4-3
TLE2426 ............................ 15-3
TLE2426Y .......................... 15-3
TLV431 ............................. 3-45
TLV431A ........................... 3-45
TLV2217-33 ....................... 2-461
TPS1100 ........................... 13-3
TPS1100Y .......................... 13-3
TPS1101 .......................... 13-13
TPS1101Y ......................... 13-13
TPS1120 .......................... 13-23
TPS1120Y ......................... 13-23
TPS2010 .......................... 13-35
TPS2010A ......................... 13-53
TPS2010Y ......................... 13-35
TPS2011 ..... . . . . . . . . . . . . . . . . . . . .. 13-35
TPS2011A ......................... 13-53
TPS2012 .......................... 13-35
TPS2012A ......................... 13-53
TPS2013 .......................... 13-35
TPS2013A ......................... 13-53
TPS2014 .......................... 13-73
TPS2015 .......................... 13-73
TPS2020 .......................... 13-93
TPS2021 .......................... 13-93
TPS2022 .......................... 13-93
TPS2023 .......................... 13-93
TPS2024 .......................... 13-93
TPS2030 ......................... 13-115
TPS2031 ......................... 13-.115
TPS2032 ......................... 13-115
TPS2033 ......................... 13-115
TPS2034 ......................... 13-115
TPS2041 ......................... 13-137
TPS2042 ......................... 13-157
TPS2043 ......................... 13-179
TPS2044 ......................... 13-203
TPS2045 ......................... 13-227
TPS2046 .......... >.. . • • . . .• . . • . . 13-247
TPS2047 ......................... 13-267
TPS2048 ......................... 13-289
TPS2051 ......................... 13-137
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
1-3
ALPHANUMERIC INDEX
TPS2052
13-157
TPS2053 .... ... .................. 13-179
TPS2054 ••••••••• 0. 0, ••••
13-203
13-227
TPS2055
o. 13-247
TPS2056 ...... o.
TPS2057 ............ .. ........... 13-267
TPS2058
13-289
TPS2100 .... ........ ....... ...... 13-311
TPS2101 , . , • • • • • • • • ' 0 ' • • • • • • • • • • • 13-311
TPS2205
13-325
TPS2206 ......................... 13-349
TPS2211
13-375
TPS2212 ... ........ .............. 13-395
TPS2214 ••• ••• ••••• • 0' • • • • • • • • • • • 13-413
TPS2216 ...... ... ..... ....... .... 13-437
TPS2811 ............................ 9-3
TPS2812
9-3
TPS2813 ... .... ....... ....... ....... 9-3
TPS2814 ... ..... ...... ....... ....... 9-3
TPS2815 ... ......... ................ 9-3
TPS2816 ... .......... ...... ........ 9-31
TPS2817 ... ..... ..... ..... ......... 9-31
TPS2818 ........................... 9-31
TPS2819 ..... ...... ...... ... ..... ... 9-31
TPS2828 ..... ........ ...... ........ 9-31
TPS2829 ... .......... ..... ... ...... 9-31
TPS2830 ' " ........................ 9-49
TPS2831 ... ......... ............... 9-49
TPS2832 ... ........................ 9--61
TPS2833
9--61
TPS3123J12 ..... ....... ........... 10-21
TPS3123G15 ..... ....... ........... 10-21
TPS3123J18 .... ........ ........... 10-21
TPS3124J12 ..... ....... ........... 10-21
TPS3124G15 ..... ...... ............ 10-21
TPS3124J18 .... ....... ............ 10-21
TPS3125J12 .... ....... ............ 10-21
TPS3125G15 .......... ......... .... 10-21
TPS3125J18 .. ... .... ....... ....... 10-21
TPS3125L30 ... ...... ....... ... .... 10-21
TPS3305-18
10-33
TPS3305-25 ....... ........ ........ 10-33
TPS3305-33 . , ..................... 10-33
TPS3307-18 ....................... 10-43
TPS3307-25 ..... ...... ............ 10-43
TPS3307-33 ..... ........ .......... 10-43
TPS3705-30
.......... .... 10-53
TPS3705-33 .. ..... ............
10-53
TPS3705-50 . , ..................... 10-53
TPS3707-25 " .....................
10-53
,
TPS3707-30 . , ..................... 10-53
TPS3707-33 . .... .................. 10-53
••••
00
••••••
0
••••••••••••
o •••••••
••••••
o.
o •••••
0
••••••••••
0
••••••••••••••
'
••••
•
0
o ••••••••••••••••••••
•••
0
••••••
'0'
•••••••
'"
'0
•
0
0
•••••••••••••
••••••••••••••
•••••••••••••••••••••••
o •••••••••••••••••••••••••
••
•
0
•••••••••
.........
'"
•••••••
....
TPS3707-50
10-53
10-63
TPS3801J25 ·
10-63
TPS3801L30
10-63
TPS3801K33
10-63
TPS3801150
TPS3809J25
10-3
TPS3809L30 ........................ 10-3
10-3
TPS3809K33
TPS3809150 ......................... 10-3
10-71
TPS3820-25
10-71
TPS3820-30
, 0 ' • • • • • 0. ' 0 '
TPS3820-33 · ...................... 10-71
TPS3820-50 ....................... 10-71
TPS3823-25 ....................... 10-71
TPS3823-30 ....................... 10-71
TPS3823-33 .................... ' " 10-71
TPS3823-50 ...................... , 10-71
TPS3824-25 ....................... 10-71
TPS3824-30
10-71
TPS3824-33 ....................... 10-71
TPS3824-50 · ...................... 10-71
TPS3825-25 ....................... 10-71
TPS3825-30 . ...................... 10-71
TPS3825-33 · ...................... 10-71
10-71
TPS3825-50 ·
TPS3828-25 '" '" .................. 10-71
TPS3828-30 ....................... 10-71
TPS3828-33 ....................... 10-71
TPS3828-50 ....................... 10-71
TPS5102 ............................ 7-3
TPS5103 ........................... 7-33
TPS5211 ........................... 7--69
TPS5510 ........................... 10-79
TPS5511 .......................... 10-85
TPS5615 ........................... 7-99
TPS5618 ........................... 7-99
TPS5625 ........................... 7-99
TPS5633 ........................... 7-99
TPS5210 .......................... 7-123
TPS5602 .......................... 7-149
TPS56100 ......................... 7-171
TPS60100 ........................... 8-3
TPS60101 .......................... 8-23
TPS60110 . ......................... 8-43
TPS60111 .......................... 8-61
TPS7101Q .......................... 2-29
TPS7101Y .......................... 2-29
TPS71 025 .......................... 2-59
TPS7133Q .......................... 2-29
TPS7133Y .......................... 2-29
TPS7133QPWP ...................... 2-3
TPS7148Q .......................... 2-29
~TEXAS
1-4
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
•
•••••••
0.
0
••••
0
•••••••
o ••
0
••••••••••
......................
•••••••
•••••••••••••••••
••••••••••••••••••
0
••
'0'
'0'
o •••••
••••••••••••••••••
0
•••••
••••••••••••••••••
0
•••••
•••••••
o.
o.
•
o ••••••••
•
•••••••••
o •••••••••••
0"
••••••••••
......................
ALPHANUMERIC INDEX
TPS7148Y ..........................
TPS7150Q ..........................
TPS7150Y ..........................
TPS71 H01 Q ........................
TPS71 H33Q ........................
TPS71 H48Q ........................
TPS71 H50Q ........................
TPS7201Q .........................
TPS7201Y .........................
TPS7225Q .........................
TPS7225Y .........................
TPS7228Q .........................
TPS7228Y .........................
TPS7230Q .........................
TPS7230Y .........................
TPS7233Q .........................
TPS7233Y .........................
TPS7248Q .........................
TPS7248Y .........................
TPS7250Q .........................
TPS7250Y .........................
TPS7301Q .........................
TPS7325Q .........................
TPS7330Q .........................
TPS7333Q .........................
TPS7348Q .........................
TPS7350Q .........................
TPS73HD301 ......................
TPS73HD318 ......................
TPS73HD325 ......................
TPS76030 .........................
TPS76032 .........................
TPS76033 .........................
TPS76038 .........................
TPS76050 .........................
TPS76130 .........................
TPS76132 .........................
TPS76133 .........................
TPS76138 .........................
TPS76150 .........................
TPS76301 .........................
TPS76316 .........................
TPS76318 .........................
TPS76325 .........................
TPS76327 .........................
TPS76328 .........................
TPS76330 .........................
TPS76333 .........................
TPS76338 .........................
TPS76350 .........................
TPS76425 .........................
TPS76427 .........................
2-29
2-29
2-29
2-75
2-75
2-75
2-75
2-113
2-113
2-113
2-113
2-113
2-113
2-113
2-113
2-113
2-113
2-113
2-113
2-113
2-113
2-145
2-145
2-145
2-145
2-145
2-145
2-185
2-185
2-185
2-211
2-211
2-211
2-211
2-211
2-221
2-221
2-221
2-221
2-221
2-231
2-231
2-231
2-231
2-231
2-231
2-231
2-231
2-231
2-231
2-247
2-247
TPS76428 .........................
TPS76430 .........................
TPS76433 .........................
TPS76501 .........................
TPS76515 .........................
TPS76518 .........................
TPS76525 .........................
TPS76527 .........................
TPS76528 .........................
TPS76530 .........................
TPS76533 .........................
TPS76550 .........................
TPS76601 .........................
TPS76615 .........................
TPS76618 .........................
TPS76625 .........................
TPS76627 .........................
TPS76628 .........................
TPS76630 .........................
TPS76633 .........................
TPS76650 .........................
TPS76701 Q ........................
TPS76715Q ........................
TPS76718Q ........................
TPS76725Q ........................
TPS76727Q ........................
TPS76728Q ........................
TPS767300 ........................
TPS76733Q ........................
TPS76750Q ........................
TPS767D301 .......................
TPS767D318 .......................
TPS767D325 .......................
TPS76801Q ........................
TPS76815Q ........................
TPS76818Q ........................
TPS76825Q ........................
TPS76827Q ........................
TPS76828Q ........................
TPS76830Q ........................
TPS76833Q ........................
TPS76850Q ........................
TPS76901 .........................
TPS76912 .........................
TPS76915 .........................
TPS76918 .........................
TPS76925 .........................
TPS76927 .........................
TPS76928 .........................
TPS76930 .........................
TPS76933 .........................
TPS76950 .........................
2-247
2-247
2-247
2-261
2-261
2-261
2-261
2-261
2-261
2-261
2-261
2-261
2-277
2-277
2-277
2-277
2-277
2-277
2-277
2-277
2-277
2-293
2-293
2-293
2-293
2-293
2-293
2-293
2-293
2-293
2-311
2-311
2-311
2-329
2-329
2-329
2-329
2-329
2-329
2-329
2-329
2-329
2-345
2-345
2-345
2-345
2-345
2-345
2-345
2-345
2-345
2-345
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
1-5
ALPHANUMERIC INDEX
TPS77001 .........................
TPS77012 .........................
TPS77015 .........................
TPS77018 ............ ,............
TPS77025 .........................
TPS77027 .........................
TPS77028 .........................
TPS77030 .........................
TPS77033 .........................
TPS77050 .........................
TPS77501 .........................
TPS77515 .........................
TPS77518 .........................
TPS77525 .........................
TPS77533 .........................
TPS77601 .........................
TPS77615 .........................
TPS77618 .........................
TPS77625 .........................
TPS77633 .........................
TPS77701 .........................
TPS77715 .........................
TPS77718 .........................
TPS77725 .........................
TPS77733 .........................
TPS77801 .........................
TPS77815 .........................
TPS77818 .........................
TPS77825 .........................
TPS77833 .........................
1IA723 .............................
1IA7805 ............................
1IA7806 ............................
2-359
2-359
2-359
2-359
2-359
2-359
2-359
2-359
2-359
2-359
2-373
2-373
2-373
2-373
2-373
2-373
2-373
2-373
2-373
2-373
2-391
2-391
2-391
2-391
2-391
2-391
2-391
2-391
2-391
2-391
2-467
2-479
2-479
1IA7808 ............................
1IA7810 ............................
1IA7812 ............................
1IA7815 ............................
1IA7818 ............................
1IA7824 ............................
1IA78L02 ...........................
1IA78L05 ...........................
1IA78L06 ...........................
1IA78L08 ...........................
1IA78L09 ...........................
1IA78L10 ...........................
1IA78L12 ...........................
1IA78L15 ...........................
1IA78M05 ..........................
1IA78M06 ..........................
1IA78M08 ..........................
1IA78M09 ..........................
1IA78M10 ..........................
1IA78M12 ..........................
1IA79M05 ..........................
1IA79M06 ..........................
1IA79M08 ........ d................
1IA79M12 ..........................
1IA79M15 ..........................
UC2842 ...........................
UC2843 ...........................
UC2844 ...........................
UC2845 ...........................
UC3842 ...........................
UC3843 ...........................
UC3844 ...........................
UC3845 ...........................
~TEXAS
H,
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-479
2-479
2-479
2-479
2-479
2-479
2-493
2-493
2-493
2-493
2-493
2-493
2-493
2-493
2-505
2-505
2-505
2-505
2-505
2-505
2-517
2-517
2-517
2-517
2-517
8-159
8-159
8-159
8-159
8-159
8-159
8-159
8-159
FIXED-VOLTAGE LOW DROPOUT (LDO) VOLTAGE REGULATORS
Device
~
~-
..
~~..-
~~~d
~t:
.~
~rn
;~
~
t
(V)
10
(max)
(rnA)
(typ)
(V)
Vo
(typ)
Vdo
Vdo
(max)
(V)
I
(ty1»)
(rnA)
Tolerance
(%)
VIN
(max)
Shutdown
SVS
Description
PagaNo.
(V)
TPS76912
1.224
100
0.122
0.245
0.017
3
13.5
Yes
No
FIXed, LDO, Positive Output, SOT-23
~5
TPS77012
1.224
50
0.06
0.125
0.017
3
13.5
Yes
No
FlXSd, LDO, Positive Output, SOT-23
2-359
TPS76515
1.5
150
0.19
0.33
O.03B
3
13.5
Yes
No
Fixed, LDO, Positive Output
2-261
TPS76615
1.5
250
0.31
0.54
O.03B
3
13.5
Yes
No
Fixed, LDO, Positive Output
2-277
TPS76715
1.5
1000
0.5
0.B25
0.065
2
10
Yes
Yes
Fixed, LDO, Positive Output
2-293
TPS76815
1.5
1000
0.5
0.B25
0.065
2
10
Yes
No
Fixed, LDO, Positive Output
2-329
TPS76915
1.5
100
0.122
0.245
0.017
3
13.5
Yes
No
Fixed, LDO, Positive Output, SOT-23
2-345
TPS77015
1.5
50
0.06
0.125
0.017
3
13.5
Yes
No
Fixed, LDO, Positive Output, SOT-23
2-359
TPS77515
1.5
500
0.169
0.2B7
0.085
2
13.5
Yes
Yes
Fixed, LDO, Positive Output
2-373
TPS77615
1.5
500
0.169
0.2B7
0.065
2
13.5
Yes
No
Fixed, LDO, Positive Output
2-373
TPS77715
1.5
750
0.26
0.427
0.065
2
13.5
Yes
Yes
Fixed, LDO, PosRive Output
2-391
TPS77B15
1.5
750
0.26
0.427
0.065
2
13.5
Yes
No
Fixed, LDO, PosRive Output
2-391
TPS76316
1.6
150
0.36
0.6
0.065
4
10
Yes
No
Fixed, LDO, Positive Output, SOT-23
2-231
TPS7631B
1.B
150
0.3
0.5
0.065
3.7
10
Yes
No
Fixed, LDO, Positive Output, SOT-23
2-231
TPS73HD31B
1.B
750
0.353
0.55
2
10
Yes
Yes
Adjustable, Dual, Fixed, LDO, Positive Output
2-165
TPS7651B
I.B
150
0.19
0.33
O.03B
3
13.5
Yes
No
Fixed, LDO, PosRive Output
2-261
TPS7661B
I.B
250
0.31
0.54
0.038
3
13.5
Yes
No
Fixed, LDO, Positive Output
2-277
TPS7671B
1.B
1000
0.5
0.B25
0.065
2
10
Yes
Yes
Fixed, LDO, PosRive Output
2-293
TPS767D31B
1.8
1000
0.35
0.825
0.OB5
2
10
Yes
Yes
Dual, Fixed, LDO, PosRive Output
2-311
TPS76B1B
1.B
1000
0.5
0.825
0.OB5
2
10
Yes
No
Fixed, LDO, PosRive Output
2-329
TPS7691B
1.B
100
0.122
0.245
0.017
3
13.5
Yes
No
FIXed, LDO, Positive Output, SOT-23
2-345
TPS7701B
1.B
50
0.08
0.125
0.017
3
13.5
Yes
No
Fixed, LDO, PosRive Output, SOT-23
2-359
TPS77518
I.B
500
0.169
0.2B7
0.065
2
13.5
Yes
Yes
Fixed, LDO, PosRive Output
2-373
TPS77718
1.B
750
0.26
0.427
0.065
2
13.5
Yes
Yes
Fixed, LDO, PosRive Output
2-391
TPS77618
1.8
500
0.169
0.2B7
0.065
2
13.5
Yes
No
Fixed, LDO, Positive Output
2-373
TPS7781B
1.8
750
0.26
0.427
0.065
2
13.5
Yes
No
Fixed, LDO, Positive Output
2-391
TPS76325
2.5
150
0.36
0.6
0.065
3.7
10
Yes
No
Fixed, LDO, Positive Output, SOT-23
2-231
TPS71 025
2.5
500
0.33
0.5
TPS7225
2.5
250
TPS7325
2.5
500
0.27
0.29
2
10
Yes
No
FIXed, LDO, Posftive Output
2-59
0.18
2
10
Yes
No
FIXed, LDO, Posftive Output
2-113
0.6
0.34
2
10
Yes
Yes
Fixed, LDO, PosRive Output
2-145
TPS73HD325
2.5
750
0.353
0.55
2
10
Yes
Yes
Adjustable, Dual, Fixed, LDO, PosRive Output
2-185
TPS76425
2.5
150
0.36
0.6
0.065
3.7
10
Yes
No
Fixed, LDO, PosRive Output, SOT-23
2-247
TPS76525
2.5
150
0.19
0.33
0.038
3
13.5
Yes
No
Fixed, LDO, PosRive Output
2-261
rm
Z
~
:::D
(§
~
en)lO
r-m
m:::D
Om
mCi)
::::!Ci)
oc:
Zr-
Ci)~
SO
C:::D
men
r-Z
Vdo
Vdo
(typ)
(V)
(max)
(V)
(~)
(mA)
Tolerance
(%)
VIN
(max)
(V)
10
(max)
(rnA)
TPS76625
2.5
250
0.31
0.54
0.038
3
TPS76725
2.5
1000
0.5
0.825
0.085
TPS7670325
2.5
1000
0.35
0.825
TPS76825
2.5
1000
0.5
0.825
Vo
Device
~
!il:nz'..A.
~i~·
~ ~
~t:~
!i~
unm-
FIXED-VOLTAGE LOW DROPOUT (LDO) VOLTAGE REGULATORS (continued)
I
(typ)
PagaNo.
m!:
Fixed, LDO, Positive Output
2-277
-<
Fixed, LDO, Posttive Output
2-293
Description
~:u
Shutdown
SVS
13.5
Yes
No
2
10
Yes
Yes
0.085
2
10
Yes
Yes
Dual, Fixed, LDO, Positive Output
2~11
Q!:i
c:;p;
0.085
2
10
Yes
No
Fixed, LDO, Positive Output
2~9
em
(V)
TPS76925
2.5
100
0.122
0.245
0.017
3
13.5
Yes
No
FIXed, LDO, Posttive Output, SOT-23
2-345
TPS77025
2.5
50
0.06
0.125
0.017
3
13.5
Yes
No
Fixed, LDO, Posttive Output, SOT-23
2~9
TPS77525
2.5
500
0.169
0.287
0.085
2
13.5
Yes
Yes
Fixed, LDO, Positive Output
2~73
TPS77625
2.5
500
0.169
0.287
0.085
2
13.5
Yes
No
Fixed, LOO, Positive Output
2~73
TPS77725
2.5
750
0.26
0.427
0.085
2
13.5
Yes
Yes
Fixed, LDO, Positive Output
2~91
TPS77825
2.5
750
0.26
0.427
0.085
2
13.5
Yes
No
Fixed, LDO, Positive Output
2~1
TPS76327
2.7
150
0.38
0.6
0.085
3.75
10
Yes
No
Fixed, LOO, PosHive Output, SOT-23
2-231
TPS76427
2.7
150
0.36
0.6
0.085
3.7
10
Yes
No
Fixed, LOO, Positive Output, SOT 23
2-247
TPS76527
2.7
150
0.19
0.33
0.038
3
13.5
Yes
No
Fixed, LDO, Positive Output
2-261
TPS76627
2.7
• 250
0.31
0.54
0.038
3
13.5
Yes
No
Fixed, LDO, Positive Output
2-277
TPS76727
2.7
1000
0.5
0.825
0.085
2
10
Yes
Yes
Fixed, LOO, Posttive Output
2-293
TPS76827
2.7
1000
0.5
0.825
0.085
2
10
Yes
No
Fixed, LDO, Positive Output
2~29
TPS76927
2.7
100
0.122
0.245
0.017
3
13.5
Yes
No
Fixed, LDO, Posttive Output, SOT 23
2-345
TPS77027
2.7
50
0.06
0.125
0.017
3
13.5
Yes
No
Fixed, LOO, PosHive Output, SOT-23
2~59
~
TPS76928
2.784
100
0.122
0.245
0.017
3
13.5
Yes
No
Fixed, LOO, Posttive Output, SOT-23
2-345
TPS77028
2.784
50
0.06
0.125
0.017
3
13.5
Yes
No
Fixed, LDO, Positive Output, SOT-23
2~
m
TPS7228
2.8
250
0.18
2
10
Yes
No
Fixed, LDO, Positive Output
2-113
TPS76328
2.8
150
0.35
0.55
0.085
3.75
10
Yes
No
Fixed, LDO, Posttive Output, SOT-23
2-231
TPS76428
2.8
150
0.36
0.6
0.085
3.8
10
Yes
No
Fixed, LOO, PosHive Output, SOT-23
2-247
TPS76528
2.8
150
0.19
0.33
0.038
3
13.5
Yes
No
Fixed, LDO, Positive Output
2-261
TPS76628
2.8
250
0.31
0.54
0.038
3
13.5
Yes
No
Fixed, LDO, Positive Output
2-277
TPS76728
2.8
1000
0.5
0.825
0.085
2
10
Yes
Yes
Fixed, LDO, PoSitive Output
2-293
TPS76828
2.8
1000
0.5
0.825
0.085
2
10
Yes
No
Fixed, LDO, Positive Output
2~
TPS7230
3
250
0.39
0.9
0.18
2
10
Yes
No
Fixed, LDO, Positive Output
2113
TPS7330
3
500
0.052
0.075
0.34
2
10
Yes
Yes
Fixed, LDO, Positive Output
2-145
TPS76030
3
50
0.12
0.18
0.85
3
16
Yes
No
Fixed, LOO, PosHive Output, SOT-23
2-211
TPS76130
3
100
0.17
0.28
2.6
3.6
16
Yes
No
Fixed, LDO, Positive Output, SOT-23
2-221
TPS76330
3
150
0.35
0.55
0.085
3.75
10
Yes
No
Fixed, LDO, Positive Output, SOT-23
2-231
TPS78430
3
150
0.36
0.6
0.085
3.8
10
Yes
No
Fixed, LOO, PosHive Output, SOT-23
2-247
~O
-Q
m:u
m
Q
c:
r-
!i
o
~
FIXED-VOLTAGE LOW DROPOUT (LDO) VOLTAGE REGULATORS (continued)
Device
I
~
~-
~~~
~~~d
~~
~"'
;~
m
;h
Vo
(typ)
10
(max)
M
(mA)
Vdo
(typ)
(V)
Vdo
(max)
(V)
I
(tYJ,)
(rnA)
Tolerance
(%)
VIN
(max)
Shutdown
SVS
Description
PageNo.
M
TPS76530
3
150
0.16
0.28
0.038
3
13.5
Yes
No
Fixed, LDO, Positive Oulput
2-261
TPS76630
3
250
0.31
0.54
0.038
3
13.5
Yes
No
Fixed, LDO, Pos~ive Oulput
2-277
TPS76730
3
1000
0.45
0.675
0.085
2
10
Yes
Yes
Fixed, LDO,
Oulput
2-293
TPS76B30
3
1000
0.45
0.675
0.085
2
10
Yes
No
Fixed, LDO, Positive Oulput
2-J29
TPS77030
3
50
0.048
0.1
0.017
3
13.5
Yes
No
Fixed, LDO, Positive Oulput, SOT-23
2-{l59
TPS76930
3.09
100
0.115
0.23
0.017
3
13.5
·Yes
No
Fixed, LDO, Pos~ive OUlput, SOT-23
2-{l45
TPS76032
3.2
50
0.12
0.18
0.85
3.1
16
Yes
No
Fixed, LDO, Positive OUlput, SOT-23
TPS76132
3.2
100
0.17
0.28
2.6
3
16
Yes
No
Fixed, LDO,
TPS7133QPWP
3.3
500
0.047
0.06
0.285
2
10
Yes
No
Fixed, LDO, Pos~ive OUlput
TPS7133
3.3
500
0.047
0.06
0.285
2
10
Yes
No
Fixed, LDO,
Pos~ive
Oulput
TPS71H33
3.3
500
0.047
0.06
0.285
2
10
Yes
No
Fixed, LDO,
Pos~ive
Output
2-75
TPS7233
3.3
250
0.14
0.18
0.155
2
10
Yes
No
Fixed, LDO, Positive Output
2-113
2-145
Pos~ive
Pos~ive
OUlput, SOT-23
2-211
2-221
2-{l
2-29
TPS7333
3.3
500
0.044
0.06
0.34
2
10
Yes
Yes
Fixed, LDO, Positive Oulput
!
TPS76033
3.3
50
0.12
0.18
0.85
3
16
Yes
No
Fixed, LOO, Pos~ive OUlput, SOT-23
2-211
I
TPS76133
3.3
100
0.17
0.28
2.6
3
16
Yes
No
Fixed, LDO, Positive OUlput, SOT-23
2-221
!
TPS76333
3.3
150
0.3
0.5
0.085
3.7
10
Yes
No
Fixed, LDO, Positive OUlput, SOT-23
2-231
I
TPS76433
3.3
150
0.3
0.5
0.085
3.7
10
Yes
No
Fixed, LDO, Pos~ive OUlput, SOT-23
2-247
!
TPS76533
3.3
150
0.14
0.24
0.038
3
13.5
Yes
No
Fixed, LDO, Pos~ive Oulput
2-261
!
TPS76633
3.3
250
0.23
0.4
0.038
3
13.5
Yes
No
Fixed, LDO, Positive Oulput
2-277
!
TPS76733
3.3
1000
0.35
0.575
0.085
2
10
Yes
Yes
Fixed, LDO, Pos~ive Oulput
2-293
I
TPS76833
3.3
1000
0.35
0.575
0.085
2
10
Yes
No
Fixed, LDO, Positive Output
2-{l29
!
TPS76933
3.3
100
0.098
0.2
0.017
3
13.5
Yes
No
Fixed, LDO,
Oulput, SOT-23
2-{l45
I
TPS77033
3.3
50
0.048
0.1
0.017
3
13.5
Yes
No
Fixed, LDO, Pos~ive Output, SOT-23
2-{l59
I
TPS77533
3.3
500
0.169
0.287
0.085
2
13.5
Yes
Yes
Fixed, LDO,
Output
2-{l73
TPS77633
3.3
500
0.169
0.287
0.085
2
13.5
Yes
No
Fixed, LDO, Positive Output
2-{l73
!
TPS77733
3.3
750
0.26
0.427
0.085
2
13.5
Yes
Yes
Fixed, LDO, Positive Output
2-{l91
I
TPS77833
3.3
750
0.26
0.427
0.085
2
13.5
Yes
No
Fixed, LDO, Positive Output
2-{l91
TLV2217-{l3
3.3
500
0.4
0.5
19
1
12
No
No
LOO
2-461
TPS76038
3.8
50
0.12
0.18
0.85
2.6
16
Yes
No
Fixed, LDO, Positive Output, SOT-23
2-211
TPS76138
3.8
100
0.17
0.28
2.6
3
16
Yes
No
Fixed, LOO, Positive Output, SOT-23
2-221
TPS76338
3.8
150
0.36
0.6
0.085
3.5
10
Yes
No
Fixed, LOO, Positive Output, SOT-23
2-231
TPS7148
4.85
500
0.03
0.037
0.285
2
10
Yes
No
Fixed, LOO, Positive Output
2-29
TPS71H48
4.85
500
0.03
0.047
0.285
2
10
Yes
No
Fixed, LOO, Positive Output
2-75
Pos~ive
Pos~ive
r-
Z
m
»
:a
~
~
en)ll
me;)
r-m
m:a
~m
-e;)
oc:
Zre;)~
So
c:a
men
-
ene
FIXED-VOLTAGE LOW DROPOUT (LDO) VOLTAGE REGULATORS (continued)
..!..
@
!il-~
52
~~
i~~d
!!It::
':3::
~l"l1
~Z
~CiI
rn
~
r-m
Yo
10
Ydo
(typ)
(V)
(max)
(typ)
(V)
(max)
M
(~)
Tolerance
(mA)
(mA)
TPS7248
4.85
250
0.09
0.1
0.155
2
TPS7348
4.85
500
0.028
0.037
0.34
TPS7150
5
500
0.027
0.033
0.285
TPS71H50
5
500
0.027
0.033
TPS7250
5
250
0.76
0.85
TPS7350
5
500
0.027
0.035
TPS76050
5
50
0.12
0.18
TPS76150
5
100
0.17
0.28
TPS76350
5
150
0.18
0.3
TPS78550
5
150
0.085
0.15
TPS766PQ
5
250
0.14
TPS76750
5
1000
TPS76650
5
1000
TPS76950
5
TPS77OS0
5
TL750LOS
5
150
0.2
TL750M05
5
750
0.5
TL751L05
5
150
0.2
0.6
10
4
TL751MOS
5
750
0.5
0.6
60
2
TL750LOB
B
150
0.2
0.7
10
4
TL750M08
B
750
0.5
0.7
60
2
TL751L08
8
150
0.2
0.7
10
4
26
Yes
TL751M08
8
750
0.5
0.7
60
2
26
Yes
TL750L10
10
150
0.2
O.B
10
4
26
No
No
Fixed, LDO, Positive Output
2-421
TL750M10
10
750
0.5
0.8
60
2
26
No
No
Fixed, LOO, Positive Output
2-429
TL751L10
10
150
0.2
0.8
10
4
26
Yes
No
' Fixed, LDO, Positive Output
2-421
TL751M10
10
750
0.5
0.8
60
2
26
Yes
No
Fixed, LDO, Positive Output
2-429
TL750L12
12
150
0.2
0.9
10
4
26
No
No
FIXed, LDO, Positive Output
2-421
TL750M12
12
750
0.5
0.9
60
2
26
No
No
Fixed, LOO, Positive Output
2-429
TL751L12
12
150
0.2
0.9
10
4
26
Yes
No
Fixed, LDO, Positive Output
2-421
TL751M12
12
750
0.5
0.9
60
2
26
Yes
No
Fixed, LDO, Positive Output
2-429
Device
---_
..
_-
Ydo
Y,N
Shutdown
SYS
10
Yes
No
2
10
Yes
2
10
Yes
0.285
2
10
0.155
2
10
0.34
2
0.85
2
2.6
2.8
0.085
4
0.038
0.25
0.23
0.23
100
50
(%)
(max)
m.
mZ
o
Description
PagaNo.
(V)
FIXed, LOO, Positive Output
2-113
Yes
F1X8d, LDO, Positive Output
2-145
No
Fixed, LDO, Positive Output
2-29
Yes
No
FIXed, LOO, Positive Output
2-75
Yes
No
FIXed, LDO, Positive Output
2-113
10
Yes
Yes
Fixed, LDO, Positive Output
2-145
16
Yes
No
FIXed, LDO, Positive Output, SOT-ea
2-211
16
Yes
No
Fixed, LDO, Positive Output, SOT43
2-221
10
Yes
No
Fixed, LDO, Positive Output, SOT43
2231
3
13.5
Yes
No
Fixed, LDO, Positive Output
2461
0.038
3
13.5
Yes
No
Fixed, LDO, Positive Output
2-277
0.36
0.085
2
10
Yes
Yes
Fixed, LDO, Positive Output
2493
0.36
0.085
2
10
Yes
No
Fixed, LDO, PositIve Output
2-a29
0.071
0.17
0.017
3
13.5
Yes
No
Fixed, LDO, Positive Output, SOT43
2-345
0.035
0.085
0.017
3
13.5
Yes
No
FIXed, LDO, Positive Output, SOT-ea
2-359
0.6
10
4
26
No
No
Fixed, LDO, Positive Output
2-421
0.6
60
2
26
No
No
Fixed, LDO, Positive Output
2-429
26
Yes
No
FIXed, LDO, Positive Output
2-421
26
Yes
No
Fixed, LDO, Positive Output
2-429
26
No
No
Fixed, LDO, Positive Output
2-421
26
No
No
Fixed, LDO, Positive Output
2-429
No
Fixed, LDO, Positive Output
. 2-421
No
Fixed, LDO, Positive Output
2-429
5l::u
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00
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Device
ADJUSTABLE OUTPUT-VOLTAGE REGULATORS
Vo
Adjustable
(nom)
(V)
10
(max)
(mA)
I
Vdo
(lyp)
(V)
Vdo
(max)
(V)
(mA)
(~)
Tolerance
(%)
VIN
(max)
(V)
Shutdown
SVS
Description
Page No.
TPS76501
1.2-5.5
150
0.16
0.33
0.038
3
13.5
Yes
No
Adjustable, LDO, Positive Output
2-261
TPS76601
1.2-5.5
250
0.23
0.54
0.038
3
13.5
Yes
No
Adjustable, LDO, Posfiive Output
2-277
TPS76701
1.5-5.5
1000
0.5
0.825
0.085
2
10
Yes
Yes
Adjustable, LOO, PosHive Output
2-293
TPS767D301
1.2-5.5
1000
0.35
0.825
0.085
2
10
Yes
Yes
Adjustable, Dual, Rxed, LDO, Positive Output
2-311
TPS76801
1.5-5.5
1000
0.5
0.825
0.065
2
10
Yes
No
Adjustable, LDO, Positive Output
2-329
TPS76901
1.2-5.5
100
0.071
0.245
0.017
3
13.5
Yes
No
Adjustable, LDO, PosHive Output, SOT-23
2-345
TPS77001
1.2-5.5
50
0.035
0.125
0.017
3
13.5
Yes
No
Adjustable, LDO, Positive Output, SOT-,23
2-359
TPS77501
1.2-5.5
500
0.169
0.287
0.065
2
13.5
Yes
Yes
Adjustable, LOO, PosHive Output
2-373
...
~~d~
TPS77801
1.2-5.5
500
0.169
0.287
0.065
2
13.5
Yes
No
Adjustable, LDO, Positive Output
2-373
TPSmOl
1.2-5.5
750
0.26
0.427
0.085
2
13.5
Yes
Yes
Adjustable, LOO, Positive Output
2-391
TPS77801
1.2-5.5
750
0.26
0.427
0.065
2
13.5
Yes
No
Adjustable, LOO, Positive Output
2-391
TPS76301
1.5-6.5
150
0.6
0.6
0.065
3
10
Yes
No
Adjustable, LDO, Positive Output, SOT 23
2231
TPS7101
1.2-9.75
500
0.052
0.085
0.285
3
10
Yes
No
Adjustable, LDO
2-29
TPS71HOl
1.2-9.75
500
0.052
0.085
0.285
3
10
Yes
No
Adjustable, LDO
2-75
TPS7201
1.2-9.75
250
0.16
0.27
0.155
3
10
Yes
No
Adjustable, LDO
2-113
grrJ
TPS7301
1.2-9.75
500
0.052
0.085
0.34
3
10
Yes
Yes
Adjustable, LDO
2-145
TPS73HD301
1.2-9.75
750
0.353
0.6
1.1
3
10
Yes
Yes
Adjustable, Dual, Rxed, LDO, PosHive Output
2-165
TL317
1.2-32
100
2.5
3
1.5
4
35
No
No
Adjustable
2-415
1lA723
2-37
150
3
2.3
1
40
No
No
Adjustable
2-467
TL783
1.25-125
700
15
15
6
125
No
No
Adjustable
2-449
LM237
-1.2--37
1500
2.2
No
No
3-Terminal Adjustable Regulator
2-409
LM337
-1.2--37
1500
2.2
No
NO
3-Terminal Adjustable Regulator
2-409
(1l
'!1
!il-. .
~~
!'.it::
.~
;~
m
10
r-
Z
m
~
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~
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mG)
r-m
m:::D
~m
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oc:
ZrG)!i
~
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C:::D
men
enc
mZ
FIXED POSITIVE-OUTPUT VOLTAGE VOLTAGE REGULATORS
1.
'"
Vo
(typ)
10
I
Vdo
(typ)
Vdo
(max)
M
M
(rnA)
1.7
3
3.6
(ty~)
Tolerance
(%)
VIN
(max)
5
I""'m
2
100
TL-8CSI285
2.85
500
0.7
26
1
5.5
No
Fixed Reg. for SCSI Active Termination
2-627
TL2217-285
2.85
500
1
26
1.5
5.5
No
Fixed Reg. for SCSI Active Termination
2-633
JlA7805
5
1500
2
3
4.2
4
25
No
No
Fixed, PosRive Output
2-479
JlA78L05
5
100
2
3
3.8
10
20
No
No
Fixed, Positive Output
2-493
G)l;;!
S::G)
em
m::o
JlA78L05A
5
100
1.7
3
3.8
5
20
No
No
Fixed, Positive Output
2-493
G)
JlA78L02A
Shutdown
SVS
20
No
No
Page No.
~::o
Fixed, PosRive Output
2-493
00
Description
M
JlA78M05
5
500
2
3
4.5
4
25
No
No
Fixed, Positive Output
2-605
TL780-05
5
1500
2
3
5
1
25
No
No
Fixed, Positive Output
2-441
JlA7806
6
1500
2
3
4.3
4
25
No
No
Fixed, Positive Output
2-479
2-493
JlA78L06
6
100
1.7
3
3.9
10
20
No
No
Fixed, Positive Output
'!l
JlA78L06A
6
100
1.7
3
3.9
5
20
No
No
Fixed, PosRive Output
2-493
~z
mrn ~.
JlA78M06
6
500
2
3
4.5
4
25
No
No
Fixed, PosRive Output
2-605
JlA7808
8
1500
2.5
3
4.3
4
25
No
No
Rxed, PosRive Output
2-479
JlA7885
8
1500
2
3
4.3
4
25
No
No
Fixed, Positive Output
2-479
JlA78L08
8
100
1.7
3
4
10
23
No
No
Fixed, Positive Output
2-493
2-493
"o
o_~
~~~
~~G;
JlA78L08A
8
100
1.7
3
4
5
23
No
No
Fixed, PosRive Output
JlA78M08
8
500
2.5
3
4.6
4
25
No
No
Fixed, Positive Output
2-605
JlA78L09
9
100
1.7
3
4.1
10
24
No
No
Fixed, PosRive Output
2-493
JlA78L09A
9
100
1.7
3
4.1
5
24
No
No
Fixed, Positive Output
2-493
JlA78M09
9
500
2.5
3
4.6
4
26
No
No
Fixed, Positive Output
2-605
JlA781 0
10
1500
2.5
3
4.3
4
28
No
No
Fixed, Positive Output
2-479
JlA78L10
10
100
1.7
3
4.2
10
25
No
No
Fixed, PosRive Output
2-493
.
JlA78Ll0A
10
100
1.7
3
4.2
5
25
No
No
Rxed, Positive Output
2-493
I
JlA78Ml0
10
500
2.5
3
4.6
4
28
No
No
Rxed, Positive Output
2-605
TL780-12
12
1500
2.5
3
5.5
1
30
No
No
Rxed, Positive Output
2-441
JlA7812
12
1500
2.5
3
4.3
4
30
No
No
Rxed, Positive Output
2-479
JlA78L12
12
100
1.7
3
4.3
10
27
No
No
Rxed, Positive Output
2-493
JlA78L12A
12
100
1.7
3
4.3
5
27
No
No
FIXed, Positive Oulput
2-493
JlA78M12
12
500
2.5
3
4.8
4
30
No
No
Fixed, Positive Output
2-605
.
TL780-15
15
1500
2.5
3
5.5
1
30
No
No
FIXed, Posttive Output
2-441
i
JlA7815
15
1500
2.5
3
4.4
4
30
No
No
Fixed, Positive Output
2-479
JlA78L15
15
100
1.7
3
4.6
10
30
No
No
Fixed, Positive Output
2-493
JlA78LI5A
15
100
1.7
3
4.6
5
30
No
No
Rxed, Positive Output
2-493
I~
~~
~
I
I
I
i
ml>
M
(max)
(rnA)
Device
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FIXED POSITIVE-OUTPUT VOLTAGE VOLTAGE REGULATORS (continued)
Device
Vo
(typ)
(V)
10
(max)
(rnA)
Vdo
(typ)
(V)
(max)
(V)
Vdo
(~)
(rnA)
(%)
VIN
(max)
(V)
Shutdown
SVS
Tolerance
Description
Page No.
1lA7BM15
15
500
2.5
3
4.B
4
30
No
No
Fixed, Positive Output
2-505
1lA7B1B
lB
1500
3
3
4.5
4
33
No
No
Fixed, Positive Output
2-479
1lA7BM20
20
500
3
3
4.9
4
35
No
No
Fixed, Positive Output
2-505
1lA7B24
24
1500
3
3
4.6
4
3B
No
No
Fixed, Positive Output
2-479
1lA7BM24
24
500
3
3
5
4
3B
No
No
Rxed, Positive Output
2-505
FIXED NEGATIVE-OUTPUT VOLTAGE VOLTAGE REGULATORS
~
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d
~
~~~
I~~
~(iJ
~
Device
10
(max)
(mA)
Vdo
(typ)
(V)
(V)
(max)
(V)
I
(ty'l»)
(rnA)
Tolerance
(%)
Vo
(typ)
Vdo
VIN
(max)
Shutdown
SVS
Description
Page No.
(V)
1lA79M05
-5
500
2
3
1
4
45
No
No
Fixed, Negative Output
2-517
1lA79M06
-£
500
2
3
1
4
-25
No
No
Rxed, Negative Output
2-517
1lA79MOB
-£
500
2.5
3
1
4
-25
No
No
Fixed, Negative Output
2-517
1lA79M12
-12
500
2.5
3
1.5
4
-30
No
No
Fixed, Negative Output
2-517
1lA79M15
-15
500
2.5
3
1.5
4
-30
No
No
Fixed, Negative Output
2-517
1lA79M20
-20
500
3
3
1.5
4
-35
No
No
Fixed, Negative Output
2-517
1lA79M24
-24
500
3
3
1.5
4
-3B_ .
No
Fixed, Negative Output
No
-
.-
_.
-
----------
2-517
--- - -
--
-----
--------
--
r-
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men
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m:::E:
SHUNT REGULATORS
1..
Device
Vref
(V)
IZ
(min)
(jJA)
IZ
(max)
(mA)
Vo
(min)
(V)
Vo
(max)
(V)
Tolerance
(%)
VI
(max)
(V)
Temp
Coeff
(typ)
(ppml"C)
Description
Page No.
TLV431A
1.24
100
15
Vref
6
1
6
46
Adjustable Shunt
3-45
TL1431
2.5
1000
100
Vref
36
0.4
36
30
Adjustable Shunt
3-27
TL431
2.5
1000
100
Vref
36
2
36
30
Adjustable Shunt
3-9
Om
TL431 A
2.5
1000
100
Vref
36
1
36
30
Adjustable Shunt
3-9
TLV431
2.5
1000
100
Vref
36
2
36
30
Adjustable Shunt
3-45
TL430
2.75
2000
100
Vref
30
9
30
120
Adjustable Shunt
3-3
~~Z4r
igt:
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Device
TLE2425
10
(typ)
(mA)
Output Regulation
(typ)
(IIA)
20
-45 - 15
L-
Vo
(min)
(V) .
Vo
(max)
(V)
2~
_ 2.~
VI
(max)
(V)
_~
~::~
(typ)
(ppm/oC)
_ 20
ZC)
C)C: .
c:r-
a!i
mo
:u
m
:::J
a.
"'tJ
:u
o
PRECISION VIRTUAL GROUNDS
~
r-c:
mZ
0 ....
~:u
m
en
Description
~ecision Virt.ual Grou~d
Page No.
6
4-3
s
Z
~
c:
J>
r-
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c:
o
Z
c
PROCESSOR POWER SUPPLY CONTROLLERS
Device
Droop
Comp
OCP
Output
Drive
Current
Outputs
OVP
Power
Good
SoH
Start
UVLO
(A)
~
o_~
j!::z:
So
};1(1)
VIN
M
M
Vref
(tol)
(±%)
Vo
(typ)
Description
Page No.
TPS5102
No
Yes
1.5
2
No
No
Yes
Yes
4.5-25
1.2-Vcc
1.5
Notebook
7-3
TPS5103
No
Yes
1.5
1
No
No
Yes
Yes
4.5-25
1.2-Vcc
1.5
Multipurpose
7-33
TPS5210
Yes
Yes
2
1
Yes
Yes
Yes
Yes
5,12
pgm 1.3 to 3.5
1
Pentium class
7-123
TPS5211
Yes
Yes
2.4
1
Yes
Yes
Yes
Yes
5, 12
pgm 1.3 to 3.5
1.5
Pentium class
7-69
TPS5602
No
Yes
1
2
No
No
Yes
Yes
4.5-25
2
DSP
7-149
TPS56100
No
Yes
2
1
Yes
Yes
Yes
Yes
5
ee
O.9- Vee
1.5
DSP
7-171
TPS5615
No
Yes
2
1
Yes
Yes
Yes
Yes
5, 12
1.5
1
DSP
7-99
Yes
5, 12
1.8
1
DSP
7-99
1.2- V
TPS5618
No
Yes
2
1
Yes
Yes
Yes
TPS5625
No
Yes
2
1
Yes
Yes
Yes
Yes
5, 12
2.8
1
DSP
7-99
TPS5633
No
Yes
2.4
1
Yes
Yes
Yes
Yes
5,12
3.3
1
DSP
7-99
~~d
~f~
!~
~
~
"0
~
o
m
~
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"0
~
m
::D
en
c:
en::g
J!!!<
mO
00
=!Z
0-1
Z::D
G)O
c:r_r1.
01
em
m::D
r
Device
..
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~~
cnocn
SWITCHING POWER SUPPLY CONTROLLERS
'"
~~~~
~~
SHDN
Pulse
-byPulse
'sense
VIN
Range
(VDC)
Outputl'ype
Output
Current
Freq
(max)
{mAl
(kHz)
Operating!
Standby
Current
(mAl
Reference
Voltage
Vref
Tol
(V)
(%)
mo::e
fiic=t
Duty
Cycle
(max)
(%)
UVLO
~
000
::IO:!:
O%z
Voltage-Mode
Zl>C)
C):D"U
c:C)O
SG2524
Yes
No
8-40
Single Switch
100
500
NAt8
5
4
90
No
SG3524
Yes
No
8-40
Single Switch
100
500
NAt8
5
8
90
No
Voltage-Mode
PWM
8-97
TL494
No
No
7-40
Single Switch
200
300
7.516
5
5
90
No
Voltage-Mode
PWM
IHll
TL497A
Yes
No
4.5-12
Single Switch
500
50
11/6
1.2
5
No
Fixed On-lime
Voltage-Mode
8-121
TL499A
No
No
1.1-35
Single Switch
500
40
1.8/NA
1.26
5
No
Fixed On-lime
Voltage-Mode
8-129
TL594
No
No
7-40
Single Switch
200
300
12.419
5
1
Yes
Voltage-Mode
PWM
8-137
Yes
Voltage-Mode
PWM
8-149
""Z
m
....
o
Yes
Current-Mode
PWM
8-159
m
8-159
TL598
UC2842
No
No
No
7-40
Yes
Totem Pole
Totem Pole
30
-250
-200
300
500
151NA
ll/NA
5
5
1
1
90
90
97
8-97
PWM
UC2843
No
Yes
30
Totem Pole
-200
500
ll/NA
5
1
97
Yes
UC2844
No
Yes
30
Totem Pole
-200
500
lllNA
5
1
97
Yes
Current-Mode
PWM
8-159
UC2845
No
Yes
30
Totem Pole
-200
500
ll/NA
5
1
97
Yes
Current-Mode
PWM
8-159
UC3842
No
Yes
30
Totem Pole
-200
500
l1/NA
5
2
97
Yes
UC3843
No
Yes
30
Totem Pole
-200
500
lllNA
5
2
97
Yes
Current-Mode
PWM
8-159
UC3844
No
Yes
30
Totem Pole
-200
500
lllNA
5
2
97
Yes
Current-Mode
PWM
8-159
UC3845
No
Yes
30
Totem Pole
-200
500
lllNA
5
2
97
Yes
Current-Mode
PWM
8-159
TL5oo1
No
No
3.6-40
Single Switch
20
400
1.1/1
1
5
100
Yes
Voltage-Mode
PWM
8-79
TL5001A
No
No
3.6-40
Single Switch
20
400
1.1/1
1
3
100
Yes
Voltage-Mode
PWM
8-79
Yes
Dual ChannelModePWM
LT1054
No
3.8-15
No
-
Totem Pole
-----
±100
2000
3.513.1
1.25
2.5
100
_m::e
~"Um
C::D
!i!l: cn
"Uc:
O"U
O"U
~p<
mO
:DO
:D:D
Current-Mode
PWM
~l'I1
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Page No.
Description
Current-Mode
8-159
PWM
8-171
--
~------.-
rr-
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LOW-NOISE CHARGE PUMP DC/DC CONVERTERS
Device
SHDN
VO
(typ)
M
Tolerance
(%)
Freq
VIN
Range
(VDC)
Output
Current
(mA)
(max)
(kHz)
Quiescent
Current
Shutdown
Current
(IJA)
(IJA)
UVLO
Description
Page No.
TPS60100
Yes
3.3
±4
1.8-3.6
200
300
50
0.05
Yes
Charge Pump DC/DC Converter, 3.3-V
8-3
TPS60101
Yes
3.3
±4
1.8-3.6
100
300
50
0.05
Yes
Charge Pump DC/DC Converter, 3.3-V
8-23
TPS60110
Yes
5
±4
2.7-5.4
300
300
60
0.05
Yes
Charge Pump DC/DC Converter, 5-V
8-43
TPS60111
Yes
5
±4
2.7-5.4
150
300
60
0.05
Yes
Charge Pump DC/DC Converter, 5-V
8-61
~
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;i1g
~
1~(Il
~
~~~
~~
rn
~
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Z
C-a
Q
g~
Om
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::a-a
Q-a
m!:(
cn-a O
:l>c:
mC: O
r-i: Z
m-a~
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-00
OZrZ
ICC
(ItA)
Internal
Regulator
Output
Current
(max)
(A)
Rise/Fall
TIme
(max)
(ns)
Supply
Voltage(s)
(V)
Description
Page No.
..............
00
TPS2811
5
Yes (8-40V)
2
20
4-14
Dual Channel
9-3
TPS2812
5
Yes (8 -40 V)
2
20
4-14
Dual Channel
9-3
G')<
c::: m
TPS2813
5
Yes (8-40V)
2
20
4-14
Dual Channel
9-3
TPS2814
5
No
2
20
4-14
Dual Channel
9-3
Device
~
TPS2815
5
No
2
20
4-14
Dual Channel
9-3
TPS2816
150
Yes (8-40V)
2
25
4-14
Active Pullup, Internal Regulator, Single Channel
9-31
TPS2817
150
Yes (8-40V)
2
25
4-14
. Active Pullup, Internal Regulator, Single Channel
TPS2818
25
Yes (8-40 V)
2
25
4-14
Single Channel
9-31
9-31
TPS2819
25
Yes (8-40V)
2
25
4-14
Single Channel
9-31
o_~
TPS2828
25
No
2
25
4-14
Single Channel
9-31
TPS2829
25
No
2
25
4-14
Single Channel
9-31
i~~d
~!:
TPS2830
1
No
2
50/85
4.5-15
Fast Synchronous-Buck W~h Deadtime Control
9-49
TPS2831
1
No
2
50/85
4.5-15
Fast Synchronous-Buck With Deadtime Control
9-49
TPS2832
1
No
2
50/85
4.5-15
Fast Synchronous-Buck With Deadtime Control
9-61
TPS2833
1
No
2
50/85
4.5-15
Fast Synchronous-Buck With Deadtime Control
9-61
~2
mrn
~f11
~~
~
j
~.
eni:
mO
r-en
m"
Om
Z:::IJ
-:::IJ
°en
m
SUPERVISORY CIRCUITS
vcc
(nom)
(V)
(V)
Tolerance
(%)
ICC
(max)
(mA)
VIN
(min)
(V)
Over
Voltage
Sense
TPS3123J12
1.2
1.08
2
0.03
0.75
No
TPS3124J12
1.2
1.08
2
0.03
0.75
No
TPS3125J12
1.2
1.08
2
0.03
0.75
No
TPS3123G15
1.5
1.4
2
0.03
0.75
TPS3124G15
1.5
1.4
2
0.03
TPS3125G15
1.5
1.4
2
TPS3123J18
1.8
1.62
TPS3124J18
1.8
TPS3125J18
@
TPS3305-18
0_...
TPS3307-18
1.8
1.68
TLC7725
2.5
2.25
TPS3707-25
2.5
2.25
TPS3801J25
2.5
TPS3305-25
2.5
TPS3809J25
Number
ofSVS
WDI
Description
No
1
Yes
Fixed Delay, Micropower
10-21
Yes
1
Yes
Fixed Delay, Micropower
10-21
Yes
1
No
Fixed Delay, Micropower
10-21
No
No
1
Yes
Fixed Delay, Micropower
10-21
0.75
No
Yes
1
Yes
Fixed Delay, Micropower
10-21
0.03
0.75
No
Yes
1
No
Fixed Delay, Micropower
10-21
2
0.03
0.75
No
No
1
Yes
Fixed Delay, Micropower
10-21
1.62
2
0.03
0.75
No
Yes
1
Yes
Fixed Delay, Micropower
10-21
1.8
1.62
2
0.03
0.75
No
Yes
1
No
Fixed Delay, Micropower
10-21
1.8
1.68
2
0.04
2.7
No
Yes
2
Yes
Fixed Delay, Micropower
10-33
2
0.04
2
No
Yes
3
No
Fixed Delay, Micropower
10-43
3
0.016
1
No
Yes
1
No
Micropower, Programmable Delay
2
0.05
2
No
Yes
1
No
Fixed Delay, Micropower
10-53
2.25
2
0.012
2
No
No
1
No
Fixed Delay, Micropower
10-63
2.25
2
0.04
2.7
No
Yes
2
Yes
Fixed Delay, Micropower
10-33
2.5
2.25
2
0.012
2
No
No
1
No
Fixed Delay, Micropower
10-3
TPS3820-25
2.5
2.25
1.8
0.025
No
Yes
1
Yes
Fixed Delay, Micropower
10-71
en
TPS3823-25
2.5
2.25
1.8
0.025
1.1
No
Yes
1
Yes
Fixed Delay, Micropower
10-71
i
TPS3824-25
2.5
2.25
2
0.025
1.1
No
Yes
1
Yes
Fixed Delay, Micropower
10-71
TPS3825-25
2.5
2.25
2
0.025
1.1
No
Yes
1
Yes
Fixed Delay, Micropower
10-71
TPS3828-25
2.5
2.25
2
0.025
1.1
No
Yes
1
Yes
Fixed Delay, Micropower
10-71
TPS3307-25
2.5
2.25
2
0.04
2
No
Yes
3
No
Fixed Delay, Micropower
10-43
TLC7703
3
2.63
2.7
0.Q16
1
No
Yes
1
No
Micropower, Programmable Delay
10-9
TPS3125L30
3
2.64
2
0.03
0.75
No
Yes
1
No
Fixed Delay, Micropower
10-21
TPS3705-30
3
2.63
2
0.05
2
No
No
1
Yes
Fixed Delay, Micropower
10-53
TPS3707-30
3
2.63
2
0.05
2
No
Yes
1
No
Fixed Delay, Micropower
10-53
TPS3801L30
3
2.64
2
0.012
2
No
No
1
No
Fixed Delay, Micropower
10-63
TPS3809L30
3
2.64
2
0.012
2
No
No
1
No
Fixed Delay, Micropower
10-3
TPS382D-30
3
2.63
1.5
0.025
1.1
No
Yes
1
Yes
Fixed Delay, Micropower
10-71
~~
00
z-
TPS3823-30
3
2.63
1.5
0.025
1.1
No
Yes
1
Yes
Fixed Delay, Micropower
10-71
C:c:
TPS3824-30
3
2.63
2
0.025
1.1
No
Yes
1
Yes
Fixed Delay, Micropower
10-71
~~
Device
~~~
;~g
~~~
~~
i~
1.
CD
Vt
Comp
Outputs
Page No.
10-9
en
c:
"U
m
en:::D
mS
r-en
mO
C)~
cncn
SUPERVISORY CIRCUITS (continued)
~
o
Device
TPS3825-30
~iz"
i~~
~~~
~~
~
~
(V)
Tolerance
(%.)
lee
(max)
(mA)
VIN
(min)
Over
Voltage
Sense
Comp
Outputs
Number
ofSVS
WOI
Description
(V)
3
2.63
2
0.025
1.1
No
Yes
1
Yes
Fixed Delay, Micropower
10-71
10-71
Vt
Page No.
3
2.63
2
0.025
1.1
No
Yes
1
Yes
Fixed Delay, Micropower
TLC7733
3.3
2.93
2.4
0.016
1
No
Yes
1
No
Micropower, Programmable Delay
10-9
TPS3705-33
3.3
2.93
2
0.05
2
No
No
1
Yes
Fixed Delay, Micropower
10-53
TPS3707-33
3.3
2.93
2
0.05
2
No
Yes
1
No
Fixed Delay, Micropower
10-53
TPS3801K33
3.3
2.93
2
0.012
2
No
No
1
No
Fixed Delay, Micropower
10-63
TPS3809K33
3.3
2.93
2
0.012
2
No
No
1
No
Fixed Delay, Micropower
10-3
TPS3820-33
3.3
2.93
1.7
0.025
1.1
No
Yes
1
Yes
Fixed Delay, Micropower
10-71
TPS3823-33
3.3
2.93
1.7
0.025
1.1
No
Yes
1
Yes
Fixed Delay, Micropower
10-71
TPS3824-33
3.3
2.93
2
0.025
1.1
No
Yes
1
Yes
Fixed Delay, Micropower
10-71
TPS3825-33
3.3
2.93
2
0.025
1.1
No
Yes
1
Yes
Fixed Delay, Micropower
10-71
TPS3828-33
3.3
2.93
2
0.025
1.1
No
Yes
1
Yes
Fixed Delay, Micropower
10-71
TL7705A
5
4.55
2
3
3.6
No
Yes
1
No
Programmable Delay
10-91
TL7705B
5
4.55
2
3
1
No
Yes
1
No
Programmable Delay
10-113
TL7757
5
4.55
3
2.5
1
No
No
1
No
No Delay
10-123
TL7759
5
4.55
3
2
1
No
Yes
1
No
No Delay
10-133
TLC7705
5
4.55
1.5
0.016
1
No
Yes
1
No
Micropower, Programmable Delay
TL7770-5
5
4.55
1
5
1
Yes
Yes
2
No
Programmable Delay
10-139
TPS3705-50
5
4.58'
2
0.05
2
No
No
1
Yes
Fixed Delay, Micropower
10-53
TPS3707-50
5
4.55
2
0.05
2
No
Yes
1
No
Axed Delay, Micropower
10-53
TPS3801150
5
4.55
2
0.012
2
No
No
1
No
Fixed Delay, Micropower
10-63
TPS3305-33
5
4.55
2
0.04
2.7
No
Yes
2
Yes
Axed Delay, Micropower
10-33
TPS3809150
5
4.55
2
0.012
2
No
No
1
No
Fixed Delay, Micropower
10-3
TPS3820-50
5
4.55
1.3
0.025
1.1
No
Yes
1
Yes
FIXed Delay, Micropower
10-71
TPS3823-50
5
4.55
1.3
0.025
1.1
No
Yes
1
Yes
Fixed Delay, Micropower
10-71
TPS3824-50
5
4.55
2
0.025
1.1
No
Yes
1
Yes
Axed Delay, Micropower
10-71
TPS3825-50
5
4.55
2
0.025
1.1
No
Yes
1
Yes
Fixed Delay, Micropower
10-71
TPS3828-50
5
4.55
2
0.025
1.1
No
Yes
1
Yes
Fixed Delay, Micropower
10-71
TPS3307-33
5
4.55
2
0.04
2
No
Yes
3
No
Fixed Delay, Micropower
10-43
9
7.6
2
3
3.6
No
Yes
1
No
Programmable Delay
10-91
TPS3828-30
g
vee
(nom)
(V)
TL7709A
--
----
10-9
me:
r""""tI
mm
!l:a
0:
%0
C):::IJ
e:-<
-n
cm:::IJ
n
e:
~
SUPERVISORY CIRCUITS (continued)
Vcc
(nom)
(V)
Device
g
Vt
(V)
Tolerance
(%)
ICC
(max)
(mA)
VIN
(min)
(V)
Over
Voltage
Sense
Comp
Outputs
Number
ofSVS
WDI
Description
Page No.
TLn12A
12
10.8
2
3
3.6
No
Yes
1
No
Programmable Delay
10-91
TLn70-12
12
10.9
1
5
1
Yes
Yes
2
No
Programmable Delay
10-139
TLn15A
15
13.5
2
3
3.6
No
Yes
1
No
Programmable Delay
10-91
TPS5510
3
1
4
Yes
Yes
3
No
Fixed Delay
10-79
TPS5511
3
1
4
Yes
Yes
3
No
Fixed Delay
10-85
No
Yes
1
No
Micropower. Programmable Delay
10-101
TLnOO
adj
TLn02A
pgm
pgm
2
3
3.6
No
Yes
1
No
Programmable Delay
10-91
TLn02B
pgm
pgm
2
3
1
No
Yes
1
No
Programmable Delay
10-113
1.1
5.4
0.Q16
1
No
Yes
1
No
Micropower, Programmable Delay
TLCn01
--
-
-----
,---adj ..
0.Q16
10-9
~2"
~~~.
~ ~d
~t::
':~
~~
~cn
~
en
c:
"U
m
en~
m_
r-en
mO
~~
z:IJ
00
"0
&
C:c:
~~
GENERAL PURPOSE DISTRIBUTION SWITCHES
~
Number
ofFETs
Device
10
(max)
(A)
Current Limit
(typ)
(A)
VINRange
(typ)
(V)
Over
Over
(typ)
(mO)
Current
Reporting
Temp
Protection
Enable
rD~on)
1
75
0.2
0.4
2.7-5.5
No
Yes
Neg
Current-Limned
13-25
0 0
TPS2010A
1
30
0.2
0.3
2.7-5.5
No
Yes
Neg
Current-Limited
13-53
(;)-1
TPS2011
1
75
0.6
1.2
2.7-5.5
No
Yes
Neg
Current-Limited
13-25
TPS2011A
1
30
0.6
0.9
2.7-5.5
No
Yes
Neg
Current-Limited
13-53
TPS2012
1
75
1
2
2.7-5.5
No
Yes
Neg
Current-limited
13-25
TPS2012A
1
30
1
1.5
2.7-5.5
No
Yes
Neg
Current-Limned
13-53
TPS2013
1
75
1.5
2.6
2.7-5.5
No
Yes
Neg
Current-Limited
13-25
TPS2013A
1
30
1.5
2.2
2.7-5.5
No
Yes
Neg
Current-limned
13-53
IN2
rDS(on)
(typ)
(0)
INI
Output
Current
(mA)
IN2
Output
Current
(mA)
INI
Supply
Cunrent
(typ)
(uA)
IN2
Supply
Cunrent
(typ)
(uA)
IN1,IN2
Input
Voltage
Range
(V)
Enable
Page No.
TPS2100
2
250
1.3
500
10
10
0.75
2.7-4.0
Neg
13-311
TPS2101
2
250
1.3
500
10
10
0.75
2.7-4.0
Pos
13-311
PCMCIAICARDBUS DISTRIBUTION SWITCHES
iUl
12-V
Supply
Required
3V/5V
rQS(on)
(typ)
(mo)
TPS2205
No
TPS2206
No
TPS2211
TPS2212
en
~
Control Inputs
Current and
Temperature
Protection
VPP Goodand
OC Reporting
Description
1101140
8 Line Parallel
Yes
NIY
Dual Channel
13-325
1101140
3 Line Serial w/Reset
Yes
NIY
Dual Channel
13-349
No
50
4 Line Parallel
Yes
NIY
Single Channel
13-375
No
160
4 Line Parallel
Yes
NIY
Single Channel
13-395
TPS2214
No
60
3 Line Serial, wlindependent VCCNPP
Yes
NIY
Dual Channel
13-413
TPS2216
No
60
3 Line Serial, wlindependent VCCNPP
Yes
NIY
Dual Channel
13-437
Device
m-l
~
!o
m
INI
rQS(on)
(typ)
(mO)
Device
c::!!
-m
Oc:
en
Number
of Inputs
~z~
zen
%
VAUX SWITCHES
!fi-
n~~
Page No.
TPS2010
~
~~~d
!~
Description
en"U
mo
r::e
mm
~:D
Page No.
USB SWITCHES
Device
Number
ofFETs
(mO)
10
(max)
(A)
Current
Limit
(typ)
(A)
rDS(on)
(typ)
VIN
Range
(typ)
(V)
Over
Current
Reporting
Over
Temp
Reporting
Enable
Description
Page No.
TPS2014
1
95
0.6
1.2
4.0-5.5
Yes
No
Neg
Current-Limited, UL Listed, USB
13-73
TPS2015
1
95
1
2
4.0-5.5
Yes
No
Neg
Current-Limited, USB
13-73
TPS2020
1
0.2
0.3
2.7-5.5
Yes
Yes
Neg
Current-Limited, USB
13-93
TPS2021
1
0.6
0.9
2.7-5.5
Yes
Yes
Neg
Current-Limited, USB
13-93
TPS2022
1
1
1.5
2.7-5.5
Yes
Yes
Neg
Current-Limited, USB
13-93
TPS2023
1
1.5
2.2
2.7-5.5
Yes
Yes
Neg
Current-Limited, USB
13-93
TPS2024
1
2
3
2.7-5.5
Yes
Yes
Neg
Current-Limited, USB
13-93
TPS2030
1
30
0.2
0.3
2.7-5.5
Yes
Yes
Pos
Current-Limited, USB
13-115
""C
TPS2031
1
30
0.6
0.9
2.7-5.5
Yes
Yes
Pos
Current-Limited, USB
13-115
~~~
TPS2032
1
30
1
1.5
2.7 -5.5
Yes
Yes
Pos
Current-Limited, USB
13-115
TPS2033
1
30
1.5
2.2
2.7-5.5
Yes
Yes
Pos
Current-Limited, USB
13-115
x~d
TPS2034
1
30
2
3
2.7-5.5
Yes
Yes
Pos
Current-Limited, USB
13-115
i t:~"'
TPS2041
1
80
0.5
0.9
2.7-5.5
Yes
Yes
Neg
Current-Limited, Nemko Recognized
13-137
.~
TPS2042
2
80
0.5
0.9
2.7-5.5
Each
Yes
Neg
Current-Umited, Nemko Recognized
13-157
TPS2043
3
80
0.5
0.9
2.7-5.5
Each
Yes
Neg
Current-Limited, Nemko Recognized
13-179
TPS2044
4
80
0.5
0.9
2.7-5.5
Each
Yes
Neg
Current-Umited, Nemko Recognized
13-203
TPS2045
1
80
0.25
0.44
2.7-5.5
Yes
Yes
Neg
Current-Limited, Nemko Recognized
13-227
TPS2046
2
80
0.25
0.44
2.7-5.5
Yes
Yes
Neg
Current-Limited, Nemko Recognized
13-247
0.44
2.7-5.5
Yes
Yes
Neg
Current-Limited, Nemko Recognized
13-267
0.44
2.7-5.5
Yes
Yes
Neg
Current-Limited, Nemko Recognized
13-289
o
~
i~
~
I
~
~
TPS2047
3
80
0.25
TPS2048
4
80
0.25
TPS2051
1
80
0.5
0.9
2.7-5.5
Yes
Yes
Pos
Current-Limited, Nemko Recognized
13-137
TPS2052
2
80
0.5
0.9
2.7-5.5
Each
Yes
Pos
Current-Limited, Nemko Recognized
13-157
TPS2053
3
80
0.5
0.9
2.7-5.5
Each
Yes
Pos
Current-Limited, Nemko Recognized
13-179
;J
TPS2054
4
80
0.5
0.9
2.7-5.5
Each
Yes
Pos
Current-Limited, Nemko Recognized
13-203
enii
TPS2055
1
80
0.25
0.44
2.7 -5.5
Yes
Yes
Pos
Current-Limited, Nemko Recognized
13-227
r- .....
TPS2056
2
80
0.25
0.44
2.7 -5.5
Yes
Yes
Pos
Current-Limited, Nemko Recognized
13-247
TPS2057
3
80
0.25
0.44
2.7-5.5
Yes
Yes
Pos
Current-Limited, Nemko Recognized
13-267
TPS2058
4
80
0.25
0.44
2.7-5.5
Yes
Yes
Pos
Current-Limited, Nemko Recognized
13-289
m
:u
e
me:
m0°
..... z
-en
g:e
C>d
S:J:
em
men
PMOS DISTRIBUTION SWITCHES
*
(I)
Number
of FETs
rD~on)
(typ)
(ma)
(max)
(V)
Vos
IDD
(max)
(A)
ESD
Circuitry
TPS1100
1
180
15
1.6
Yes
High-Side PMOS
13-3
TPS1101
1
90
15
2.3
Yes
High-Side PMOS
13-13
TPS1120
2
180
15
1.17
Yes
High-Side PMOS
13-23
Device
Description
"'a
mo
Page No.
~:e
Om
.... :D
OC
zen
e>iI
c
--
-m
m ....
Cc
oz
~
d
::c
~
~~~
:!!It::
;j~=I
':~
~~
~~
en
i
m
LED DRIVERS
Device
vref
(V)
TLC5904
2.5
IZ
(max)
(mA)
Vo
(min)
Vo
(max)
(j1A)
(V)
(V)
1000
100
Vref
36
Iz
(min)
Tolerance
(%)
VI
(max)
(V)
0.4
Temp
Coeff
(typ)
(ppmfOC)
Description
Page No.
30
LED Driver
14-3
36
VOLTAGE RAIL SPLITTERS
Device
TLE2426
ICC
(J.LA)
VCC
(V)
10
(mA)
280
4-40
20
(V)
Vo
(max)
(V)
Temp
Coeff
(typ)
(ppm/eC)
1.98
20.2
25
Vo
(min)
Description
Rail Splitter Precision Virtual Ground
Page No.
15-3
SPECIAL FUNCTIONS
~
!i1-
I~~
8l~~~
!:It::
~~
~~
~~
m
Device
TL7726
TL2218-285
Vref
(V)
IZ
(min)
(J.LA)
4.5
IZ
(max)
(J.LA)
Vo
(min)
(V)
60
-20.5
2.5
Input
Clamp
Current
(mA)
Settling
lime
(J.ts)
25
30
Description
Page No.
Hex Clamping Circuit
11M3
Excalibur Current·Mode SCSI Terminator
16-7
r-
m
C
c
::a
<:
m
::a
!I'
<
1»0
~~
en):li
"Uc;)
enmm
mO::a
r-5>:aomr-r....... "TI en
C "U
5ZZr-
c;)~~
~
SOm
CZ::a
men en
~TEXAS
1-26
INSTRUMENTS
POST OFFICE BOX 655303" DALLAS, TEXAS 75265
General Information (Vol. 1)
Linear Voltage Regulators
Shunt Regulators
Precision Virtual Grounds
Mechanical Data
General Information (Vol. 2)
Processor PS Controllers
Switching PS and DC/DC Converters
MOSFET Drivers
Supervisors
Mechanical Data
General Information (Vol. 3)
Power Distribution Switches
LED Drivers
Voltage Rail Splitters
Special Functions
Mechanical Data
2-1
r-.
::J
(I)
Q)
'"'I
.-~..
Q)
cc
(I)
:a
(I)
cc
c
iii"
...o
'"'I
tn
2-2
TPS7133QPWP, TPS7133Y
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVSl 01 A- FEBRUARY 1995 - REVISED AUGUST 1995
PWPPACKAGE
(TOP VIEW)
• Thermally Enhanced Surface-Mount
Package (PWP)
• High-Current (500-mA) LDO Regulator
• Very Low-Dropout Voltage .•. Maximum of
60 mV at 10 = 100 mA
• Extremely Low Sleep-State Current
0.5!lA Max
• 2% Output-Voltage Tolerance Over Full
Range of Load, Line, and Temperature
• Output Current Range of 0 mA to 500 mA
• Power Good (PG) Status Output
20
19
18
17
16
15
14
13
12
11
10
2
3
4
GNO/HEATSINK
GNO/HEATSINK
GNO
NC
EN
IN
IN
NC
GNO/HEATSINK
GNO/HEATSINK
5
6
7
8
9
10
GNO/HEATSINK
GNO/HEATSINK
NC
NC
PG
SENSE
OUT
OUT
GNO/HEATSINK
GNO/HEATSINK
NC - No internal connection
description
The TPS7133QPWP is a micropower low-dropout
(LDO) voltage regulator with a fixed 3.3-V output
voltage, rated for loads up to 500 rnA. The device
is ideal for applications that require 3.3 V from a
5-V supply, or a constant output from a battery,
such as alkaline or lithium ion, that drops off
considerably in voltage as it discharges.
Thermal
Pad
To maximize the advantage of its high-outputcurrent capability, the TPS7133QPWP is now
offered in a new thermally enhanced surfacemount power package. Designed to the same
dimensions as the 20-pin TSSOP Oust 1.2 mm
high), the part has an innovative thermal pad,
which, when soldered to the printed-wiring board
(PWB), enables the device to diSSipate several
watts of power (see Figure 1 and Thermal
Information section).
Using a PMOS transistor as the pass element
keeps the quiescent current very low and
constant, independent of output loading (typically
270 IJA over the full range of output current, 0 mA
to 500 mA). Because the PMOS device also
behaves as a low-value resistor, the dropout is
very low - maximum of 60 mV at 100 mAo These
two key specifications yield a significant improvement in· operating life for battery-powered
systems. The LDO also features a sleep mode;
applying a TIL high signal to EN shuts down the
regulator, reducing the quiescent current to
0.51JA.
Figure 1. Bottom View of PWP Package,
Showing the Thermal Pad
0.25
TA=25'C
0.2
>
/
I
CD
Cl
0.15
~
~
:;
0
/
0.1
a.
e
Q
0.05
o/
o
V
/
V
V
1/
/
/
0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5
10 - Output Current- A
Figure 2. Typical Dropout Voltage Versus
Output Current
~TEXAS
Copyright © 1995, Texas Instruments Incorporated
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-3
TPS7133QPWP, TPS7133Y
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS101A - FEBRUARY 1995 - REVISED AUGUST 1995
AVAILABLE OPTIONSt
OUTPUT VOLTAGE
PACKAGED DEVICES
(V)
TJ
-55°C to 150°C
MIN
TYP
MAX
THERMALLY-ENHANCED TSSOP
(PWP)
3.23
3.3
3.37
TPS7133QPWPPWPLE
CHIP FORM
(Y)
TPS7133Y
tThe PWP package IS only available left-end taped and reeled (indicated by the LE suffix on the device type; e.g.,
TPS7133QPWPLE). The chip form is tested at 25°C.
TPS7133QPWP
VI
6
-e--e----\ IN
PG
7
16
IN
SENSE
OUT
5
O.1I1F
PG
15
EN
OUT
Vo
---,I
cot
+
10l1F
GND
3
ESR
I
I
_ _ _ oJI
t Capacitor selection is nontrivial. See application information section
for details.
Figure 3. Typical Application Configuration
functional block diagram
IN
EN* - - - -__-~
PG
1---....-
OUT
SENSei
420kn
233kn
GND
Resistors are nominal values only.
:I: Switch positions shown with
EN active low.
§ For most applications, SENSE should be externally connected to OUT as close as possible to the
device. For other implementations, refer to SENSE-pin connection discussion in applications
information section.
~TEXAS
2-4
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS7133QPWP, TPS7133Y
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS101A- FEBRUARY 1995- REVISED AUGUST 1995
TPS7133Y chip information
This chip, when properly assembled, displays characteristics similar to the TPS7133QPWP. Thermal
compression or ultrasonic bonding may be used on the doped aluminum bonding pads. The chips may be
mounted with conductive epoxy or a gold-silicon preform.
BONDING PAD ASSIGNMENTS
-=
-=
-=
-=
-=
-=
-=
-=
-=
-=
-=
-=
-=
-=
-=
-=
-=
-=
-=
-=
-=
-=
-=
-=
-=
-=
~
~
~
1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1
GND/HEATSINK
GND/HEATSINK
GND
EN
IN
IN
GND/HEATSINK
GND/HEATSINK
(1)
(20)
(2)
(19)
(3)
(16)
(5)
(6)
(7)
(15)
TPS7133Y
(14)
(13)
(9)
(12)
(10)
(11)
GND/HEATSINK
GND/HEATSINK
CHIP THICKNESS: 15 MILS TYPICAL
BONDING PADS: 4 x 4 MILS MINIMUM
PG
TJmax
SENSE
OUT
=150°C
TOLERANCES ARE ±10%
ALL DIMENSIONS ARE IN MILS
OUT
GND/HEATSINK
TERMINALS 4, 8, 17, AND 18 ARE
NOT CONNECTED
GND/HEATSINK
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-5
TPS7133QPWP, TPS7133Y
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS101A- FEBRUARY 1995 - REVISED AUGUST 1995
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)t
Input voltage range:!:, VI, PG, SENSE, EN .............................................. -0.3 to 10 V
Output current, 10 ....................................•...................................... 2 A
Continuous total power dissipation ............................. See Dissipation Rating Tables 1 and 2
Operating virtual junction temperature range, TJ .................................... -55°C to 150°C
Storage temperature range, Tstg .................................................. -65°C to 150°C
Lead temperature 1,6 mm (1116 inch) from case for 10 seconds ............................... 260°C
t Stresses beyond those listed under "absolute maximum ratings' may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those Indicated under "recommended operating conditions· is not
Implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
:j: All voltage values are with respect to network terminal ground.
DISSIPATION RATING TABLE 1 - FREE-AIR TEMPERATURE (see Figure 4)§
=
=
PACKAGE
TA s 25°C
POWER RATING
DERATING FACTOR
ABOVE TA 25°C
TA 70°C
POWER RATING
TA 125°C
POWER RATING
PWP
700mW
5.6mW/"C
448mW
140mW
=
DISSIPATION RATING TABLE 2 - CASE TEMPERATURE (see Figure 5)§
PACKAGE
TC s 62.5°C
POWER RATING
DERATING FACTOR
ABOVE TC 62.5°C
TC = 70°C
POWER RATING
TC = 125°C
POWER RATING
PWP
25W
285.7mW/OC
22.9W
7.1W
=
MAXIMUM CONTINUOUS DISSIPATION§
vs
FREE·AIR TEMPERATURE
MAXIMUM CONTINUOUS DISSIPATION§
vs
CASE TEMPERATURE
BOO
~I
30
~
700
"-"K
c
I
0
:;r::L
~
III
::J
0
::J
c
~
8
600
500
300
E
::J
E
-=I
200
:E
Q
100
D.
o
25
50
25
1
20
c
0
'\
!.
Q
'"
400
.
I
1
I
RaJA = 178°CIW
~
!
g
" '"
75
100
15
E
10
8
::J
"- "'125
TA - Free-Air Temperature - °C
Figure 4
i
:II
"
150
~
pa",::\
E
iC
Measured with the exposed thermal
coupled to an infinite heat sink with a
thermally conductive compound (the
thermal COnductivity of the compound
Is 0.815 W/m . °C). The FleJc Is 3.5°C/W.
5
rP
o
25
50
75
100
125
TC:- Case Temperature - °C
FigureS
,
'"
150
§ Dissipation rating tables and figures are provided for maintenance of junction temperature at or below absolute maximum temperature of 150°C.
For guidelines on maintaining junction temperature within recommended operating range, see the Thermal Information section.
2-6
:II
TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS7133QPWP, TPS7133Y
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS101A- FEBRUARY 1995 - REVISED AUGUST 1995
recommended operating conditions
Input voltage, VI t
High-level input voltage at EN, VIH
MIN
MAX
3.77
10
V
0.5
V
0
500
rnA
-40
125
°C
2
Low-level input voltage at EN, VIL
Output current range, 10
Operating virtual junction temperature range, TJ
UNIT
V
..
..
..
t MInimum
Input voltage defined In the recommended operating conditions IS the maximum specified output voltage plus dropout voltage Voo:j:
at the maximum specified load range. Since dropout voltage is a function of output current, the usable range can be extended for lighter loads.
To calculate the minimum input voltage for your maximum output current, use the following equation:
VI(min) = VO(max)
+ VOO(max load)
:j: This symbol is not currently listed within EIA or JEOEC standards for semiconductor symbology.
electrical characteristics at 10 = 10 mA, EN = 0 V, Co = 4.7 ~F/ESR* = 1 n, SENSE shorted to OUT
(unless otherwise noted)
PARAMETER
TEST CONDITIONSI
Ground current (active mode)
EN S 0.5 V,
OSIOsSOOmA
VI=VO+ 1 V,
Input current (standby mode)
EN=VI,
2.7VSVIS10V
Output current limit
VO=O,
VI=10V
Pass-element leakage current in
standby mode
EN=V"
2.7VSVIS10V
PG leakage current
Normal operation,
VPG= 10V
Output voltage temperature coefficient
TJ
TPS7133QPWP
TYP MAX
MIN
25°C
285
-40°C to 125°C
460
25°C
0.5
2
-40°C to 125°C
1.2
25°C
-40°C to 125°C
1
0.02
25°C
61
-40°C to 125°C
2.7VSVIS10V
25°C
0.5
0.5
Minimum VI for valid PG
-0.5
0.5
-40°C to 125°C
-0.5
0.5
2.05
25°C
-40°C to 125°C
2.5
2.5
-40°C to 125°C
IpG=300~
J.lA
J.lA
pprnfOC
1.06
V
mV
50
25°C
25°C
Minimum VI for active pass element
A
V
2.7
25°C
OSVIS10V
~
°C
2
-40°C to 125°C
EN hysteresis voltage
EN input current
75
165
40°C to ·125°C
~
0.5
0.5
-40°C to 125°C
6VSVIS10V
UNIT
0.5
25°C
-40°C to 125°C
2.5 VSVI S6V
EN logic low (active mode)
2
2
Thermal shutdown junction temperature
EN logic high (standby mode)
350
1.5
1.9
~
V
V
§ ESR refers to the eqUivalent senes reSistance, Including Internal and external resistance.
'II Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must be
taken into account separately.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-7
TPS7133QPWP, TPS7133Y
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS101A- FEBRUARY 1995 - REVISED AUGUST 1995
=
=
=
=
=
electrical characteristics at 10 10 rnA, VI 4.3 V, EN 0 V, Co 4.7 J.1F/ESRt 1 n, SENSE shorted
to OUT (unless otherwise noted)
PARAMETER
Output voltage
TEST CONDITIONS'!'
VI = 4.3 V,
4.3 V~VI
5 mA~ 10~500mA
10V,
VI = 3.23 V
10= 100 rnA,
VI =3.23V
10= 500 rnA,
·VI = 3.23 V
Pass-element series resistance
(3.23 V - VO)/IO,
10= 500 rnA
VI = 3.23 V,
Input voltage regulation
VI = 4.3 V to 10 V,
50 I1A ~ 10 ~ 500 rnA
Output voltage regulation
I1A to 500 rnA,
4.3 V ~ VI ~ 10 V
10 = 50
Ripple rejection
I1A
1= 120 Hz
10=500 rnA
Output noise-spectral density
Output noise voltage
PG trip-threshold voltage
-40°C to 125°C
25°C
10Hz~I~100kHz,
6
47
60
-40°C to 125°C
80
25°C
235
0.47
25°C
0.6
0.8
25°C
20
27
21
25°C
-40°C to 125°C
30
25°C
25°C
43
-40°C to 125°C
40
25°C
39
-40°C to 125°C
36
n
mV
mV
mV
54
dB
49
2
25°C
274
CO= lO !lF
25°C
228
CO= lOO !lF
25°C
159
0.92 x
VO(nom)
!lV/;!Hz
!lVrms
0.98 x
VO(nom)
25°C
35
25°C
0.22
t ESR relers to the equivalent series resistance, including internal and external resistance.
60
120
-40°C to 125°C
-40°C to 125°C
38
75
CO=4.7!lF
VI =2.8V
mV
300
-40°C to 125°C
-40°C to 125°C
V
400
-40°C to 125°C
25°C
Vo voltage decreasing Irom above VPG
IPG= 1 rnA,
0.02
UNIT
8
25°C
PG hysteresis voltage
PG output low voltage
3.37
-40°C to 125°C
1= 120 Hz
ESRt= 1 Q
3.3
3.23
-40°C to 125°C
10 =5 rnA to 500 rnA, 4.3V~VI~10V
10 = 50
TPS7133QPWP
MIN
TYP
MAX
25°C
10=10mA
~
10=10mA,
Dropout voltage
TJ
V
mV
0.4
0.4
V
t Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must be
taken into account separately.
~TEXAS
2-8
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS7133QPWP, TPS7133V
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS101A- FEBRUARY 1995 - REVISED AUGUST 1995
electrical characteristics at 10 = 10 rnA, EN = 0 V, Co = 4.7 ~F/ESR* =1 Q, TJ = 25°C, SENSE shorted
to OUT (unless otherwise noted)
PARAMETER
TEST CONDITIONS!!
Ground current (active model
EN", 0.5 V,
0",10",500 mA
VI=VO+ 1 V,
Output current limit
VO=O,
VI=10V
PG leakage current
Normal operation,
VPG=10V
TPS7133Y
MIN
TYP MAX
UNIT
285
IIA
1.2
0.02
Thermal shutdown junction temperature
EN hysteresis voltage
Minimum VI for active pass element
Minimum VI for valid PG
IpG =300 IIA
A
IIA
165
°C
50
mV
2.05
V
1.06
V
§ ESR refers to the equivalent series reSistance, including intemal and external resistance.
'Il Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must be
taken into account separately.
electrical characteristics at 10 = 10 rnA, VI = 4.3 V, EN = 0 V, Co = 4.7 ~F/ESRt =1 Q, TJ = 25°C, SENSE
shorted to OUT (unless otherwise noted)
TEST CONDITIONS;
PARAMETER
Output voltage
Dropout voltage
Pass-element series resistance
Output voltage regulation
Ripple rejection
Output noise-spectral density
Output noise voltage
TPS7133Y
TYP MAX
VI=4.3V,
10=10mA
3.3
10=10mA,
VI = 3.23 V
0.02
10= 100mA,
VI=3.23V
47
10=500mA,
VI=3.23V
235
(3.23 V - VOlIIO,
10 = 500 mA
VI = 3.23 V,
0.47
UNIT
V
mV
n
10= 5 mA to 500 mA, 4.3V"'VI"'10V
21
mV
10 = 50 IIA to 500 mA, 4.3 V ",VI'" 10 V
30
mV
f=120Hz
10= 5011A
54
110=500mA
49
CO=4.7I!F
274
CO= 10l!F
228
CO= 1OO I!F
159
f=120Hz
10 Hz ",1",100 kHz,
ESRt= 1 n
2
PG hysteresis voltage
PG output low voltage
MIN
35
IpG=l mA,
VI =2.8V
0.22
dB
I!V/v'Hz
I!Vrms
mV
V
t ESR refers to the eqUIvalent senes reSistance, Including internal and external resistance.
:j: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must be
taken into account separately.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-9
TPS7133QPWP, TPS7133Y
MICROPOWER LOW·DROPOUT (LDO) VOLTAGE REGULATORS
SLVS101A - FEBRUARY 1995 - REVISED AUGUST 1995
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
vs Output current
IQ
Quiescent current
vs Input voltage
VDO
Typical dropout voltage
vs Output current
l\VOO
Change in dropout voltage
vs Free-air temperature
l\VO
Change in output voltage
vs Free-air temperature
Vo
Output voltage
vs Input voltage
l\VO
Change in output voltage
vs Input voltage
Vo
Output voltage
vs Output current
Ripple rejection
vs Frequency
Output special noise density
vs Frequency
rDS(ol'll
R
Pass-element resistance
vs Input voltage
Divider resistance
vs Free-air temperature
II(SENSE)
SENSE pin current
vs Free-air temperature
vs Free-air temperature
VI
II(EN)
IMinimum input voltage (active-pass element)
vs Free-air temperature
I Minimum input voltage (valid PG)
vs Free-air temperature
vs Free-air temperature
EN Input current
Output voltage response from Enable (EN)
VPG
2-10
Power-good (PG) voltage
vs Output voltage
TotalESR
vs Output current
TotalESR
vs Added ceramic capacitance
Total ESR
vs Output current
Total ESR
vs Added ceramic capacitance
-!!1
TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DAu.AS, TEXAS 75265
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
TPS7133QPWP, TPS7133Y
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS1 01A - FEBRUARY 1995 - REVISED AUGUST 1995
TYPICAL CHARACTERISTICS
QUIESCENT CURRENT
355
CC
::I.
I
C
~
:::I
()
vs
OUTPUT CURRENT
INPUT VOLTAGE
T~=25~C
345
~
335 f- VI=10V
QUIESCENT CURRENT
vs
-- -
-
400
TA = 25°C
350 r- RL=10Q
I--
CC
I
325
C
315
:::I
()
~
250
C
200
305
B
a
295
9
285
a
I
9
:::I
=:
275
/
JII
I
100
~
so
VI=4.3V
o so
/'
0
100 150 200 250 300 350 400 450 500
0
2
4
7
6
3
5
VI- Input Voltage - V
10 - Output Current - mA
Figure 6
vs
FREE·AIR TEMPERATURE
OUTPUT CURRENT
0.3
.1.
/
/"
C
~:::I
300
()
C
GI
III
.!!!
/
250
:::I
a
I
9
200
/'
>
I
GI
0.2
J
V
~
'$
0.15
8.
e
c
/
0.1
/
0.05
o/
150
-so
-25
10
T~=2~oC
0.25
/
350
::I.
I
9
DROPOUT VOLTAGE
vs
VI=4.3V
10= 10 mA
CC
8
Figure 7
QUIESCENT CURRENT
400
V
V
I{
150
'5
I
265
/
300
::I.
C
.B
..,...V
,/"
0
25
50
75
100
TA - Free·Alr Temperature - °C
125
o
/
l/
V
l/
V
/
/
/
50 100 150 200 250 300 350 400 450 500
FigureS
10 - Output Current - mA
Figure 9
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-11
TPS7133QPWP, TPS7133Y
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS1 01A- FEBRUARY 1995 - REVISED AUGUST 1995
TYPICAL CHARACTERISTICS
CHANGE IN DROPOUT VOLTAGE
CHANGE IN OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
10
8
/
6
I
1/1
4
~
2
8.
0
'S
e
Q
.5
&
-4
()
-6
c
II
.c
/
/
/
-10
-50
I
/
10
I
~
'!i
5
0
0
So
:::I
.5
III
Q
-5
c
/
6
-10
~
-15
I
~
/
/
-2
20
/'
10 =100mA
:e
I
vs
FREE-AIR TEMPERATURE
0
25
50
75
100
TA - Free-Air Tempereture - °c
V
-25
0
25
50
75
100
TA - Free-Air Temperature - °c
Figure 10
OUTPUT VOLTAGE
CHANGE IN OUTPUT VOLTAGE
vs
INPUT VOLTAGE
INPUT VOLTAGE
vs
20
TA=25°c
RL=10Q
~
I
10
/
t
2
TA = 25°C
RL=10Q
15
I
3
I
5
o
-5
III
.!()~
I
~
/
V
--..... ..........
i"""
'"
-10
b
~
o
o
-15
-20
2
3
4
5
6
7
8
9
10
4
5
6
7
8
VI-Input Voltage - V
VI-Input Voltage - V
Figure 12
Figure 13
~TEXAS
2-12
125
Figure 11
4
>
/
/
-20
-50
125
V
./
/'"
V
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
9
10
TPS7133QPWP, TPS7133Y
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS101A - FEBRUARY 1995 - REVISED AUGUST 1995
TYPICAL CHARACTERISTICS
RIPPLE REJECTION
OUTPUT VOLTAGE
3.34
vs
vs
OUTPUT CURRENT
FREQUENCY
70
I
TA = 25°C
60
3.33
>
III
CI
~
m
"CI
3.31
~
I
~
~r-~
3.3
3.29
I
40
t
30
c
VI=10V
'$
!
0
-,
50
3.32
I
I
III
RL=5000
11111 i l
20
is.
a.
'"
ii:
3.28
10
3.27
0
3.26
TA = 25°C
VI =4.3V
o
100
300
200
500
400
10
100
1k
c
I
\
vs
FREQUENCY
INPUT VOLTAGE
I
I
"-Ii
Gl
u
c
!i
1
E
"-
Do
I
....
1k
10k
0.9
0.8
.~
0.6
0.5
\ 1\
0.4
0.3
P
0.2
100 k
./ 10=500rnA
0.7
CoS
Ul
>c 0.01
100
TA=25°C
VI(SENSE) = 3.14 V -
c:
Co = 100 ILF (ESR = 1 0)
I
10M
1.1
Co = 4.7 ILF(ESR = 1 0)
J
1M
PASS-ELEMENT RESISTANCE
vs
I III
0.1
100k
Figure 15
III I 11111111
111111
~/" CO=10ILF(ES~,~Hl)
j
10k
f - Frequency - Hz
TA = 25°C
No Input Capacitance
VI=4.3V
~>
10
)
,I
LllIIIIL I WIIiU 11111111
OUTPUT SPECTRAL NOISE DENSITY
Z
RL=100
No Input Capacitance
-10 J
10
Figure 14
l
"11"'.
Co =4.7 ILF(ESR= 1 0)
10 - Output Current - rnA
f
u~
Ir- 10 = 100 rnA
~
.....
~
0.1
2
3
f - Frequency - Hz
4
5
6
7
8
9
10
VI- Input Voltage - V
Figure 16
Figure 17
~TEXAS
INSTRUMENTS
POST OFFICE BOX 665303 • DALLAS, TEXAS 75265
2-13
TPS7133QPWP, TPS7133Y
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS101A- FEBRUARY 1995 - REVISED AUGUST 1995
TYPICAL CHARACTERISTICS
DIVIDER RESISTANCE
vs
FREE-AIR TEMPERATURE
0.9
I
I
SENSE PIN CURRENT
vs
FREE-AIR TEMPERATURE
6
I
VI=4.3V
VI(sense) = VO(nom)
c::S.
0.8
Cl
::E
5.8
I
I
3c
I
0.7
'0
0.6
~
:!:
Q
"'-1'...
5.6
C
~
~
~
5.2
fl
r---
I
II:
~
I
5
ic
4.8
CD
0.5
;
0.4
-50
-25
0
25
50
75
100
4.6
V
V
5.4
C)
~ r-...
VI=4.3V
VI(sense) = VO(nom)
1/
j
/
V
V
/
/
4.4
125
-50
-25
TA - Free-Air Temperature - °C
0
25
50
75
100
125
TA - Free-Air Temperature - °C
Figure 18
Figure 19
MINIMUM INPUT VOLTAGE
(ACTIVE PASS ELEMENT)
vs
FREE-AIR TEMPERATURE
MINIMUM INPUT VOLTAGE
(VALID PG)
vs
FREE-AIR TEMPERATURE
1.1
2.1
RL=500Q
2.09
>
2.08
CD
Cl
2.07
I
:!
:§l
'$
a.
.5
2.06
..V
2.05
2.04
:i
2.03
.5
I
J
:§l
i
.5
E
:::I
E
1/
I
"> 2.02
2.01
L
>
V
E
:::I
/
V
L
,/
V
-25
V
1.08
/
1.07
C
i
/
I
L
"> 1.06
2
-50
)
1.09
0
25
50
75
100
125
1.05
-50
-25
25
V
50
75
TA - Frae-Air Temparature - °C
TA - Free-Air Temperature - °C
Figure 20
Figure 21
~TEXAS
2-14
0
/
V
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS. TEXAS 75265
100
125
TPS7133QPWP, TPS7133Y
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS101A - FEBRUARY 1995 - REVISED AUGUST 1995
TYPICAL CHARACTERISTICS
EN INPUT CURRENT
vs
OUTPUT VOLTAGE RESPONSE FROM
ENABLE (EN)
FREE·AIR TEMPERATURE
100
90
I.
>
J .1
I
C
~::I
U
'$
I
70
60
50
a-
.5
I
Iffi
=
40
30
20
10
I
I
I
/
V'
I
V
!
~
TA = 25°C
RL=5000
Co = 4.711F (ESR = 10)
No Input Capacitance
/
......~
6
4
2
~
j
$!
-
o lili
o
-40 -20
~.
/
i
$!
I
80
II:
50~~~
I 1--- f
300ft/min
25~--~--~----~--~--~~--~--~--~
00.3
1
2
3
4
5
6
7
8
Copper Heat-Sink Area - cm2
Figure 35
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-19
TPS7133QPWP, TPS7133Y
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS101A- FEBRUARY 1995 - REVISED AUGUST 1995
THERMAL INFORMATION
---"T"'"----.
3.5 I"T""---.-----"T---T"""---.
at
3.5 ........- - - . - - -.......
3rr----~----~~=---+_--=-~
3rr----~----_+------+_----~
I
~
j
~
2.5 H------/------t-
2.5 t+-----t-~--7'1'=-----_t_--__:::;;001
2t+--~~----~~----+-------;
1.51-b1~~+-----+------+-------;
I
J,p
e.
I
I
,p
0.5 t+-----t------+------+-------;
0.5 t+-----t------+------+-------;
o~--~--~---~--~
00.3
2
4
6
8
°0~--~2~--~4---~6--~8
0.3
Copper Heat-8ink Size - cm2
Copper Heat-Sink Size - cm2
(a)
(b)
3.5
TA=105°C
at
3
I
==
~
2.5
t
2
c
~
1.5
150ft/min
J,p
300ft/min
I
0.5
I
i-'"r
~
~ c:---
Natural Convection
~V"
2
4
6
8
Copper Heat-Sink Size - cm2
(c)
Figure 36. Power Ratings of the PWP Package at Ambient Temperatures of 25°e, 55°e, and 105°e
2-20
:lllExAs
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS7133QPWP, TPS7133Y
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS101A- FEBRUARY 1995 - REVISED AUGUST 1995
THERMAL INFORMATION
Figure 37 is an example of a thermally enhanced PWB layout for use with the new PWP package. This board
configuration was used in the thermal experiments that generated the power ratings shown in Figures 35 and 36. As
discussed earlier, copper has been added on the PWB to conduct heat away from the device. RaJA for this assembly
is illustrated in Figure 35 as a function of heat-sink area. A family of curves is included to illustrate the effect of airflow
introduced into the system.
Heat·Slnk Area
lozCopper
Board thickness
Board size
Board material
Cu trace/heat sink
Exposed pad mounting
62 mils
3.2 in. x 3.2 in.
FR4
1 oz
63/67 tln/lead solder
r---...1
L __ ,
L ________ ..J
Figure 37. PWB Layout (Including Cu Heatsink Area) for Thermally Enhanced PWP Package
From Figure 35, RaJA for a PWB assembly can be determined and used to calculate the maximum power-dissipation
limit for the componenVPWB assembly, with the equation:
TJmax - TA
PO(max) = -=R~----.!..!..
'eJA(system)
Where
TJmax is the maximum specified junction temperature (150°C absolute maximum limit, 125°C recommended
operating limit) and TA is the ambient temperature.
PD(max~ should then be applied to the internal power dissipated by the TPS71330PWP regulator. The equation for
calculatmg total internal power dissipation of the TPS71330PWP is:
PO(total) = (VI - Vo) . 10 + VI . 10
Since the quiescent current of the TPS71330PWP is very low, the second term is negligible, further simplifying the
equation to:
PO(total) = (VI - Vo) . 10
For the case where TA =55°C, airflow =200 ft/min, copper heat-sink area =4 cm2, the maximum power-dissipation
limit can be calculated. First, from Figure 35, we find the system RaJA is 50°C/W; therefore, the maximum
power-dissipation limit is:
TJmax - T A
PO(max)
=R
'eJA(system)
125°C - 55°C
=
50 0 CjW
= 1.4 W
~TEXAS
INSTRUMENTS
POST OFFICE BOX 865303 • DAlLAS. TEXAS 75285
2-21
TPS7133QPWP, TPS7133Y
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS101A- FEBRUARY 1995 - REVISED AUGUST 1995
If the system implements a TPS7133QPWP regulator, where VI
is:
PD(total) = (VI - V
o ) . 10 =
=6 V and 10 =500 mA, the internal power dissipation
(6 - 3.3) ·0.5 = 1.35 W
Comparing PD{total) with PD{max) reveals that the power dissipation in this example does not exceed the calculated
limit. When it does, one of two corrective actions should be made: raising the power-dissipation limit by increasing
the airflow or the heat-sink area, or lowering the internal power dissipation of the regulator by reducing the input
voltage or the load current. In either case, the above calculations should be repeated with the new system parameters.
mounting information
Since the thermal pad is not a primary connection for an electrical Signal, the importance of the electrical
connection is not significant. The primary requirement is to complete the thermal contact between the thermal
pad and the PWB metal. The thermal pad is a solderable surface and is fully intended to be soldered at the time
the component is mounted. Although voiding in the thermal-pad solder-connection is not desirable, up to 50%
voiding is acceptable. The data included in Figures 35 and 36 is for soldered connections with voiding between
20% and 50%. The thermal analysis shows no significant difference resulting from the variation in voiding
percentage.
Figure 38 shows the solder-mask land pattern for
the PWP package. The minimum recommended
heat-sink area is also illustrated. This is simply a
copper plane under the body extent of the
package, including metal routed under terminals
1,2,9,10,11,12,19, and 20.
Minimum Recommended
Heat-Sink Area
O.27mm ....._.....,
...
.,--c:p
.,--q::::J
:L--ci::::r
-~
reliability Information
This section includes demonstrated reliability test
results obtained from the qualification program.
Accelerated tests are performed at high-stress
conditions so that product reliability can be
established during a relatively short test duration.
Specific stress conditions are chosen to represent
accelerated versions of various deviceapplication environments and allow meaningful
extrapolation to normal operating conditions.
location of Exposed
Thermal Ped on
PWPPackage
~
O.65mm
c:p
c:t:::J
r---
I
I
I
I
I
I
IL.. _ _ _ _ _ .JI
.2!=:J--
5.72 mm -t::~....,
Figure 38. PWP Package Land Pattern
~1ExAs
2-22
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS7133QPWP, TPS7133Y
MICROPOWER LOW-DROPOUT {LDO} VOLTAGE REGULATORS
SLVS101A- FEBRUARY 1995 - REVISED AUGUST 1995
THERMAL INFORMATION
component level reliability test results
preconditioning
Preconditioning of components prior to reliability testing is employed to simulate the actual board assembly
process used by the customer. This ensures that reliability test results are more representative of those that
would be seen in the final application. The general form of the preconditioning sequence includes a moisture
soak followed by multiple vapor-phase-reflow or infrared-reflow solder exposures. All components used in the
following reliability tests were preconditioned in accordance with JEDEC Test Method A113 for Level 1 (not
moisture-sensitive) products.
high-temperature life test
High-temperature life testing is used to demonstrate long-term reliability of the product under bias. The potential
failure mechanisms evaluated with this stress are those associated with dielectric integrity and design or
process sensitivity to mobile-ion phenomena. Components are tested at an elevated ambient temperature of
155°C for an extended period. Results are derated using the Arrhenius equation to an equivalent number of unit
hours at a representative application temperature. The corresponding predicted failure rate is expressed in FITs,
or failures per billion device-hours. The failure rate shown in this case is data-limited since no actual failures
were experienced during qualification testing.
PREDICTED LONG-TERM FAILURE RATE
Number of Units
325
I
I
Equivalent Unit Hours at 55°C and 0.7 eV
I FITs at 50% CL
I
24,468,090
36.2
biased humidity test
Biased humidity testing is used to evaluate the effects of moisture penetration on plastic-encapsulated devices
under bias. This stress verifies the integrity of the package construction and the die passivation system. The
primary potential failure mechanism is electrolytic corrosion. Components are biased in a low power state to
reduce heat dissipation and are subjected to a 120°C, 850/0-relative-humidity environment for 100 hours.
BIASED HUMIDITY TEST RESULTS
Equivalent Unit Hours at 85°C and 85% RH
357,000
I
I
Failures
0
autoClave test
The autoclave stress is used to assess the capabilities of the die and package construction materials with
respect to moisture ingress and extended exposure. Predominant failure mechanisms include leakage currents
that result from internal moisture accumUlation and galvanic corrosion resulting from reactions with any present
ionic contaminants. Components are subjected to a 121°C, 15 PSIG, 1000/0-relative-humidity environment for
240 hours.
AUTOCLAVE TEST RESULTS
Total Unit Hours
I
Failures
54,720
I
0
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-23
TPS7133QPWP, TPS7133Y
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS101A- FEBRUARY 1995 - REVISED AUGUST 1995
THERMAL INFORMATION
thermal shock test
Thermal shock testing is used to evaluate the capability of the component to withstand mechanical stress
resulting from differences in thermal coefficients of expansion among the die and package construction
materials. Failure mechanisms are typically related to physical damage at interface locations between different
materials. Components are cycled between -65°C and 150°C in liquid mediums for a total duration of 1000
cycles.
THERMAL SHOCK TEST RESULTS
Total Unit Cycles
345,000
I
I
Failures
0
PWB assembly level reliability results
temperature cycle test
Temperature cycle testing of the PWB assembly is used to evaluate the capability of the assembly to withstand
mechanical stress resulting from the differences in thermal coefficients of expansion among die, package, and
PWB board materials. This testing is also used to sufficiently age the soldered thermal connection between the
thermal pad and the Cu trace on the FR4 board and evaluate the degradation of the thermal resistance for a
board-mounted test unit. The assemblies were cycled between temperature extremes of -40°C and 125°C for
a total duration of 730 cycles.
TEMPERATURE CYCLE TEST RESULTS
Total Unit Cycles
36,500
I
I
Failures
0
I Average Change in RaJA(sYstem)
-0.41%
I
solderability test
Solderability testing is used to simulate actual board-mount performance in a reflow process.
Solderability testing is conducted as follows: The test devices are first steam-aged for 8 hours. A stencil is used
to apply a solder-paste terminal pattern on a ceramic substrate (nominal stencil thickness is 0.005 inch). The
test units are manually placed on the solder-paste footprint with proper implements to avoid contamination. The
ceramic substrate and components are subjected to the IR reflow process as follows:
IR REFLOW PROCESS
ITemperature
I Time
PREHEAT SOAK
REFLOW
150·C to 170·C
215·C to 23O·C
60 sec
BOsec
After cooling to room temperature, the component is removed from the ceramic substrate and the component
terminals are subjected to visual inspection at 10X magnification.
Test results are acceptable if all terminations exhibit a continuous solder coating free of defects for a minimum
95% of the critical surface area of any individual termination. Causes for rejection include: dewetting,
nonwetting, and pin holes. The component leads and the exposed thermal pad were evaluated against this
criteria.
SOLDERABILITY TEST RESULTS
Number of Test Units
I
Failures
22
I
0
X-ray test
X-ray testing is used to examine and quantity the voiding of the soldered attachment between the thermal pad
and the PWB copper trace. Voiding between 20% and 50% was observed on a 49-piece sample.
~TEXAS
2-24
INSTRUMENTS
POST OFFICE BOX 655303 • DAlLAS. TEXAS 75265
TPS7133QPWP, TPS7133Y
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGU~ATORS
SLVS1 01A - FEBRUARY 1995 - REVISED AUGUST 1995
APPLICATION INFORMATION
The TPS7133QPWP low-dropout (LDO) regulator is designed to overcome many of the shortcomings of
earlier-generation LDOs, while adding features such as a power-saving shutdown mode and a power-good
indicator.
device operation
The TPS7133QPWP, unlike many other LDOs, features very low quiescent currents that remain virtually
constant even with varying loads. Conventional LDO regulators use a pnp-pass element, the base current of
which is directly proportional to the load current through the regulator (Is = IcI~). Close examination of the data
sheets reveals that those devices are typically specified under near no-load conditions; actual operating
currents are much higher as evidenced by typical quiescent-current versus load-current curves. The
TP87133QPWP uses a PMOS transistor to pass current; because the gate of the PMOS element is voltage
driven, operating currents are low and invariable over the full load range. The TPS7133QPWP specifications
reflect actual performance under load.
Another pitfall associated with the pnp-pass element is its tendency to saturate when the device goes into
dropout. The resulting drop in ~ forces an increase in Is to maintain the load. During power up, this translates
to large start-up currents. Systems with limited supply current may fail to start up. In battery-powered systems,
it means rapid battery discharge when the voltage decays below the minimum required for regulation. The
TPS7133QPWP quiescent current remains low even when the regulator drops out, eliminating both problems.
The TPS7133QPWP also features a shutdown mode that places the output in the high-impedance state
(essentially equal to the feedback-divider resistance) and reduces quiescent currentto under 21JA. EN is pulled
down internally, requiring no external connection for continuous operation. Response to an enable transition is
quick; regulated output voltage is reestablished in typically 120 ~.
minimum load requirements
The TPS7133QPWP is stable even at zero load; no minimum load is required for operation.
sense-pin connection
The SENSE pin must be connected to the regulator output for proper functioning of the regulator. Normally, this
connection should be as short as possible; however, the connection can be made near a critical circuit (remote
sense) to improve performance at that pOint. Internally, SENSE connects to a high-impedance wide-bandwidth
amplifier through a resistor-divider network and noise pickup feeds through to the regulator output. Routing the
SENSE connection to minimize/avoid noise pickup is essential. Adding an RC network between SENSE and
OUT to filter noise is not recommended because it can cause the regulator to oscillate.
external capacitor requirements
An input capacitor is not required; however, a ceramic bypass capacitor (0.047-pF to O. hl.F) improves load
transient response and noise rejection if the TPS7133QPWP is located more than a few inches from the power
supply. A higher-capacitance electrolytic capacitor may be necessary if large (hundreds of milliamps) load
transients with fast rise times are anticipated.
As with most LDO regulators, the TPS7133QPWP requires an output capacitor for stability. A low-ESR 10-I1F
solid-tantalum capaCitor connected from the regulator output to ground is sufficient to ensure stability over the
full load range (see Figure 39). Adding high-frequency ceramic or film capaCitors (such as power-supply bypass
capacitors for digital or analog ICs) can cause the regulator to become unstable unless the ESR of the tantalum
capaCitor is less than 1.2 (2 over temperature. CapaCitors with published ESR specifications such as the
~TEXAS
.
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-25
TPS7133QPWP, TPS7133Y
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS101A- FEBRUARY 1995 - REVISED AUGUST 1995
APPLICATION INFORMATION
AVX TPS0106K035R0300 and the Sprague 5930106X0035D2W work well because the maximum ESR at
25°C is 300 mn (typically, the ESR in solid-tantalum capacitors increases by a factor of 2 or less when the
temperature drops from 25°C to -40°C). Where component height and/or mounting area is a problem,
physically smaller, 10-I1F devices can be screened for ESR. Figures 25 through 32 show the stable regions of
operation using different values of output capacitance with various values of ceramic load capaCitance.
In applications with little or no high-frequency bypass capacitance « 0.2I1F), the output capacitance can be
reduced to 4.7I1F, provided ESR is maintained between 0.7 and 2.5 n. Because minimum capaCitor ESR is
seldom if ever specified, it may be necessary to add a 0.5-n to 1-n resistor in series with the capacitor and limit
ESR to 1.5 n maximum. As shown in the ESR graphs (Figures 25 through 32), minimum ESR is not a problem
when using 10-I1F or larger output capacitors.
Below is a partial listing of surface-mount capacitors usable with the TPS7133QPWP. This information (along
with the ESR graphs, Figures 25 through 32) is included to assist in selection of suitable capacitance for the
user's application. When necessary to achieve low height requirements along with high output current and/or
high ceramic load capacitance, several higher ESR capacitors can be used in parallel to meet the guidelines
above.
All load and temperature conditions with up to 1 I1F of added ceramic load capacitance:
PART NO.
MFR.
T421C226M010AS
5930156X002502W
5930106X003502W
TPS0106M035R0300
Kemet
Sprague
Sprague
AVX
VALUE
MAX ESRt
2211F, 10 V
1511F, 25 V
10 I1F, 35 V
10 I1F, 35 V
0.5
0.3
0.3
0.3
SIZE (H x L x W)t
2.8 x
2.8 x
2.8 x
2.8 x
6 x 3.2
7.3 x 4.3
7.3 x 4.3
7.3 x 4.3
Load < 200 rnA, ceramic load capacitance < 0.2 I1F, full temperature range:
PART NO.
MFR.
VALUE
MAX ESRt
5920156X0020R2T
5950156X0025C2T
5950106X0025C2T
2930226X001602W
Sprague
Sprague
Sprague
Sprague
1511F, 20 V
1511F, 25 V
10 I1F, 25 V
2211F, 16 V
1.1
1
1.2
1.1
SIZE (H x L x W)t
1.2 x
2.5 x
2.5 x
2.8 x
7.2 x
7.1 x
7.1 x
7.3 x
6
3.2
3.2
4.3
Load < 100 rnA, ceramic load capacitance < 0.2 I1F, full temperature range:
PART NO.
1950106X06R3V2T
1950106X0016X2T
5950156X0016B2T
6950226X0015F2T
6950156X0020F2T
6950106X0035G2T
MFR.
VALUE
MAX ESRt
SIZE (H x L x W)t
Sprague
Sprague
Sprague
Sprague
Sprague
Sprague
10 I1F, 6.3 V
1011F, 16 V
1511F, 16 V
2211F, 15 V
1511F, 20 V
1011F, 35 V
1.5
1.5
1.8
1.4
1.5
1.3
1.3 x 3.5 x 2.7
1.3x7 x2.7
1.6 x 3.8 x 2.6
1.8 x 6.5 x 3.4
1.8 x 6.5 x 3.4
2.5 x 7.6 x 2.5
t Size is in mm. ESR is maximum resistance at 100kHz and TA =25°C. Listings are sorted by height.
~TEXAS
2-26
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS, TEXAS 75265
TPS7133QPWP, TPS7133Y
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS101A- FEBRUARY 1995 - REVISED AUGUST 1995
APPLICATION INFORMATION
external capacitor requirements (continued)
TPS7133QPWP
6
7
C1
0.1 ~F
SOV
IN
PG
16
PG
15
IN
Vo
5
---.,
+ Co I
EN
GND
3
I
I
_ _ _ oJI
10~F
ESR
Figure 39. "TYpical Application Circuit
power-good indicator
The TPS7133QPWP features a power-good (PG) output that can be used to monitor the status of the regulator.
The internal comparator monitors the output voltage: when the output drops to between 92% and 98% of its
nominal regulated value, the PG output transistor turns on, taking the signal low. The open-drain output requires
a pullup resistor. If not used, it can be left floating. PG can be used to drive power-on reset circuitry or used as
a low-battery indicator. PG does not assert itself when the regulated output voltage falls out of the specified 2%
tolerance, but instead reports an output voltage low, relative to its nominal regulated value.
regulator protection
The TPS7133QPWP PMOS-pass transistor has a bUilt-in back diode that safely conducts reverse currents
when the input voltage drops below the output voltage (e.g., during power down). Current is conducted from
the output to the input and is not internally limited. If extended reverse voltage is anticipated, external limiting
may be appropriate.
The TPS7133QPWP also features internal current limiting and thermal protection. During normal operation, the
TPS7133QPWP limits output current to approximately 1 A. When current limiting engages, the output voltage
scales back linearly until the overcurrent condition ends. While current limiting is designed to prevent gross
device failure, care should be taken not to exceed the power dissipation ratings of the package. If the
temperature of the device exceeds 165°C, thermal-protection circuitry shuts it down. Once the device has
cooled, regulator operation resumes.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 8S5303 • DALLAS. TEXAS 75265
2-27
2-28
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS71 01 V, TPS7133V, TPS7148V, TPS7150V
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
D OR P PACKAGE
(TOP VIEW)
• Available in 5-V, 4.85-V, and 3.3-V
Fixed-Output and Adjustable Versions
• Very Low-Dropout Voltage ... Maximum of
32 mV at 10 100 mA (TPS7150)
=
GNDD8
EN 2
7
IN 3
6
IN 4
5
• Very Low Quiescent Current - Independent
of Load .•• 285 !LA Typ
• Extremely Low Sleep-State Current
0.5 !LA Max
PG
SENSEt/FB*
OUT
OUT
PWPACKAGE
(TOP VIEW)
• 2% Tolerance Over Specified Conditions
For Fixed-Output Versions
GND
GND
GND
• Output Current Range of 0 mA to 500 mA
• TSSOP Package Option Offers Reduced
Component Height for Space-Critical
Applications
NC
NC
• Power-Good (PG) Status Output
1
PG
NC
NC
FB*
NC
SENSEt
OUT
OUT
description
The TPS71xx integrated circuits are a family
of micropower low-dropout (LOO) voltage
regulators. An order of magnitude reduction in
dropout voltage and quiescent current over
conventional LOO performance is achieved by
replacing the typical pnp pass transistor with a
PMOS device.
IN
NC - No internal connection
t SENSE - Fixed voltage options only
(TPS7133, TPS7148, and TPS7150)
FB - Adjustable version only (TPS71 01)
*
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (maximum of 32
mV at an output current of 100 mA for the TPS7150) and is directly proportional to the output current (see
Figure 1). Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very
low and remains independent of output loading (typically 285 !LA over the full range of output current, 0 mA to
500 mA). These two key specifications yield a significant improvement in operating life for battery-powered
systems. The LOO family also features a sleep mode; applying a TTL high signal to EN (enable) shuts down
the regulator, reducing the quiescent current to 0.5lJA maximum at TJ =25°C.
~=~:::I:=~~~;.:~r:::.:==.=
SIandard warranty. Produc1lon _ I n g dOH not necusarily Include
teotlng 01 ell perollll18l1.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
Copyright © 1997. Texas Instruments Incorporated
2-29
TPS7101 Q, TPS7133Q, TPS7148Q, TPS7150Q
TPS71 01 V, TPS7133V, TPS7148V, TPS7150V
LOW-DROPOUT VOLTAGE REGULATORS
SlVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
description (continued)
>
I
i
~
I
0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5
10 - Output Current - A
Figure 1. Dropout Voltage Versus Output Current
Power good (PG) reports low output voltage and can be used to implement a power-on reset or a low-battery
indicator.
The TPS71xx is offered in 3.3-V, 4.85-V, and 5-V fixed-voltage versions and in an adjustable version
(programmable over the range of 1.2 V to 9.75 V). Output voltage tolerance is specified as a maximum of 2%
over line,load, and temperature ranges (3% for adjustable verSion). The TPS71 xx family is available in PDIP
(8 pin), SO (8 pin), and TSSOP (20-pin) packages. The TSSOP has a maximum height of 1.2 mm.
AVAILABLE OPTIONS
OUTPUT VOLTAGE
PACKAGED DEVICES
(V)
TJ
MIN
-40°C to 125°C
TYP
MAX
CHIP FORM
SMALL OUTLINE
(D)
PLASTIC DIP
TSSOP
(P)
(PW)
(V)
4.9
5
5.1
TPS7150QD
TPS7150QP
TPS7150QPW
TPS7150Y
4.75
4.85
4.95
TPS7148QD
TPS7148QP
TPS7148QPW
TPS7148Y
3.23
3.3
3.37
TPS7133QD
TPS7133QP
TPS7133QPW
TPS7133Y
TPS7101QD
TPS7101QP
TPS7101 QPW
TPS7101Y
Adjustablet
1.2 Vto 9.75 v
tThe D and PW packages are available taped and reeled. Add R suffix to deVIce type (e.g., TPS7150QDR). The TPS7101Q IS
programmable using an external resistor divider (see application information). The chip form is tested at 25°C.
~1ExAs
INSTRUMENTS
2-30
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS71 01 V, TPS7133Y, TPS7148Y, TPS7150Y
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
TPS71xxt
VI
8
-e--e---I IN
9
PG
IN
SENSE
IN
OUT
EN
OUT
20
PG
15
10
6
0.1111'
Vo
r
---~
Co:l: I
I
I
I
I
I
GND
+ 10ILF
I
I
CSR
_ _ _ oJI
L
t TPS7133, TPS7148, TPS7150 (fixed-voltage options)
:I: Capacitor selection is nontrivial. See application information section
for details.
Figure 2_ lYpical Application Configuration
TPS71 xx chip information
These chips, when properly assembled, display characteristics similar to the TPS71 xxQ. Thermal compression
or ultrasonic bonding may be used on the doped aluminum bonding pads. The chips may be mounted with
conductive epoxy or a gold-silicon preform.
(5)
BONDING PAD ASSIGNMENTS
IN
EN
(3)
(2)
(6)
TPS71 xx
(4)
(7)
SENSE§
FB1I
OUT
PG
(1)
GND
CHIP THICKNESS: 15 MILS TYPICAL
BONDING PADS: 4 x 4 MILS MINIMUM
=
TJrnax 150°C
TOLERANCES ARE ±10%.
ALL DIMENSIONS ARE IN MILS.
1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1
§ SENSE - Fixed voltage options only (TPS7133, TPS7148,
and TPS7150)
11 FB - Adjustable version only (TPS71 01)
NOTE A. For most applications, OUT and SENSE should
be tied together as close as possible to the device;
for other Implementations, refer to SENSE-pin
connection discussion in the Applications
Information section of this data sheet.
~TEXAS
INSTRUMENTS
POST OFACE BOX 655303 • DALlAS. TEXAS 75265
2-31
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS7101 Y, TPS7133Y, TPS7148Y, TPS7150Y
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
functional block diagram
IN ---------4---.------~
__
+-~--------.
RESISTOR DIVIDER OPTIONS
EN - - - - - - - - - t l..........~
PG
DEVICE
R1
TPS7101
TPS7133
TPS7148
TPS7150
0
420
726
756
R2
~
233
233
233
UNIT
g
Idl
Idl
kg
NOTE A. Resistors are nominal values only.
1----.....- - OUT
COMPONENT COUNT
SENSE*/FB
R1
MOS transistors
Bilpolar transistors
Diodes
Capacitors
Resistors
464
41
4
17
76
R2
GND
t Swftch positions are shown wfth EN low (active).
:I: For most applications, SENSE should be externally connected to OUT as close as possible to the device. For other implementations, refer to
SENSE-pin connection discussion in Applications Information section.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)§
Input voltage range'll, VI, PG, SENSE, EN ............................................ -0.3 V to 11 V
Output current, 10 ................................................•......................... 2 A
Continuous total power dissipation ............................. See Dissipation Rating Tables 1 and 2
Operating virtual junction temperature range, TJ .................................... -55°C to 150°C
Storage temperature range, Tstg .................................................. -65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds ............................... 260°C
§ Stresses beyond those listed under 'absolute maximum ratings' may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions' is not
Implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
'II All voHage values are with respect to network ter,minal ground.
DISSIPATION RATING TABLE 1 - FREE-AIR TEMPERATURE (see Figure 3)#
PACKAGE
D
P
PWII
TA ~ 25°C
POWER RATING
DERATING FACTOR
ABOVE TA 25°C
TA = 70°C
POWER RATING
TA = 125°C
POWER RATING
725mW
1175mW
700mW
5.8mW/oC
9.4mW/oC
5.6mWrC
464mW
752mW
448mW
145mW
235mW
140mW
=
DISSIPATION RATING TABLE 2 - CASE TEMPERATURE (see Figure 4)#
=
=
PACKAGE
TC ~ 25°C
POWER RATING
DERATING FACTOR
ABOVE TC 25°C
TC 70°C
POWER RATING
TC 125°C
POWER RATING
D
2188mW
2738mW
4025mW
17.5mW/oC
21.9mWrC
1400mW
1752mW
2576mW
438mW
548mW
805mW
P
PWII
=
32.2mWrC
# Dissipation rating tables and figures are provided for maintenance of junction temperature at or below
absolute maximum temperature of 150°C. For guidelines on maintaining junction temperature within
recommended operating range, see the Thermal Information section.
II Refer to Thermal Information section for detailed power diSSipation considerations when using the TSSOP packages.
~TEXAS
2-32
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS7101Y, TPS7133Y, TPS7148Y, TPS7150Y
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
DISSIPATION DERATING CURVEt
vs
FREE·AIR TEMPERATURE
DISSIPATION DERATING CURVEt
vs
CASE TEMPERATURE
1400...---,.......--,.......---,r-----,r-----,
~I
c
I
I
§
E
I
I
rP
TA - Free-Air Temperature - °C
Figure 3
t
TC - Case Tempereture - °C
Figure 4
Dissipation rating tables and figures are provided for maintenance of junction temperature at or below absolute maximum temperature of 150°C.
For guidelines on maintaining junction temperature within recommended operating range, see the Thennallnformation section.
recommended operating conditions
Input voltage, VI*
MIN
MAX
TPS7101Q
2.5
10
TPS71330
3.77
10
TPS7148Q
5.2
10
TPS7150Q
5.33
10
High-level input voltage at EN, VIH
2
Operating virtual junction temperature range, TJ
V
V
0.5
V
0
500
mA
-40
125
°C
Low-level input voltage at EN, VIL
Output current range, 10
UNIT
* Minimum input voltage defined in the recommended operating conditions is the maximum specified output voltage plus dropout voltage at the
maximum specified load range. Since dropout voltage is a function of output current, the usable range can be extended for lighter loads. To
calculate the minimum input voltage for your maximum output current, use the following equation: VI (min) = VO(max) + VDO(max load)
Becausethe TPS71 01 is programmable, rDS(on) should be used to calculate VDobeforeapplyingtheaboveequation. The equation forcalculating
Voo from roS(on) is given in Note 2 In the electrical characteristics table. The minimum value of 2.5 V is the absolute lower limit for the
recommended input voltage range for the TPS71 01.
:'I
TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-33
TPS7101Q, TPS7133Q,TPS7148Q, TPS7150Q
TPS71 01 V, TPS7133Y, TPS7148Y, TPS7150Y
LOW-DROPOUT VOLTAGE REGULATORS
SlVS092F - NOVEMBER 1994- REVISED JANUARY 1997
=
=
=
electrical characteristics at 10 10 mA, EN 0 V, Co 4.7 ~F/CSRt =1 n, SENSE/FB shorted to OUT
(unless otherwise noted)
PARAMETER
TEST CONDITIONs*
Ground current (active mode)
ENSO.. 5 V,
OmASloSSOOmA
VI=VO+ 1 V,
Input current (standby mode)
EN=V"
2.7 V S Vp;; 10 V
Output current IimH
VO=O,
VI''' 10 V
Pass-element leakage current in standby
mode
EN=V"
2.7VSVp;;10V
PG leakage current
Normal operation,
VPG=10V
Output voltage temperature coefficient
TJ
TPS7101Q,TPS7133Q
TPS7148Q,TPS715OQ
MIN
TYP MAX
25°C
285
460
25°C
0.5
-40°C to 125°C
2
1.2
25°C
-40°C to 125°C
EN logic low (active mode)
25°C
0.5
-40°C to 125°C
1
0.02
25°C
-40°C to 125°C
61
75
165
2.5VSV, S6V
40°C to 125°C
6VSv,S10V
2.7 V SV, S 10V
OVSV,S10V
OVSV,S10V
25°C
0.5
0.5
50
IpG = 300 IlA
-0.5
0.5
-40°C to 125°C
-0.5
0.5
25°C
-40°C to 125°C
A
IlA
IlA
ppml"C
2.05
2.5
2.5
1.06
V
mV
25°C
-40°C to 125°C
IPG =3001lA
IlA
V
2.7
-40°C to 125°C
25°C
IlA
°C
2
25°C
Minimum V, for active pass element
Minimum V, for valid PG
0.5
0.5
-40°C to 125°C
EN hysteresis voltage
EN input current
2
2
Thermal shutdown junction temperature
EN logiC high (standby mode)
350
-40°C to 125°C
UNIT
1.5
1.9
IlA
V
V
t CSR (compensation series reSistance) refers to the total series resistance, including the equivalent series resistance (ESR) of the capacitor, any
series resistance added externally, and PWB trace resistance to Co.
:j: Pulse-testing techniques are used to maintain virtual junction temparature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
~1ExAs
2-34
INSTRUMENTS
POST OFFICE aox 655303 • OALLAS, TEXAS 75265
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS71 01 V, TPS7133V, TPS7148V, TPS7150V
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
=
=
TPS7101 electrical characteristics at 10 10 mA, VI 3.5 V, EN
shorted to OUT at device leads (unless otherwise noted)
PARAMETER
Reference voltage (measured at FB
with OUT connected to FB)
TEST CONDITIONs*
VI =3.5 V,
10=10mA
2.5 VSVp;; 10V,
See Note 1
5 mAS 10 S 500 mA,
Reference voltage temperature
coefficient
VI =2.4 V,
SOllA SloS 150mA
VI = 2.4 V,
lS0 mA S 10 S SOO
mA
Pass-element series resistance
(see Note 2)
Input regulation
25°C
-40°C to 12SoC
1.143
1.213
-40°C to 12SoC
61
75
25°C
0.7
1
0.83
1.3
0.52
0.85
2SoC
-40°C to 125°C
1.3
SO IlAS 10 s500 mA
25°C
0.32
VI =5.9V,
SO IlAS 10 S 500 mA
25°C
0.23
VI = 2.S Vto 10 V,
See Note 1
SO IlA S 10 S 500 mA,
25°C
18
-40°C to 125°C
25
10 = S mA to SOO mA,
See Note 1
2.SVSVIS10V,
10 = SO IlA to 500 mA,
See Note 1
2.5VSVI S 10V,
10 HzsIs 100kHz,
CSRt=Hl
2SoC
14
-40°C to 12SoC
25
2SoC
22
-40°C to 125°C
54
25°C
48
-40°C to 125°C
44
25°C
45
-40°C to 125°C
44
2
25°C
95
CO= lO I1F
2SoC
89
CO= lOO I1F
2SoC
74
VFB voltage decreasing from above VPG
Measured at VFB
PG outpu1low voltage§
IPG = 400 1lA,
VI=2.13V
FB input current
-40°C to 125°C
1.101
12
25°C
0.1
-40°C to 12SoC
-10
-20
mV
I1VrmS
0.1
V
mV
0.4
0.4
25°C
mV
I1V/--IHz
1.145
25°C
-40°C to 125°C
mV
dB
54
CO=4.7I1F
PG hysteresis voltage§
n
59
25°C
PG trip-threshold voltage§
ppm/"C
0.85
-40°C to 125°C
1= 120 Hz
V
1
-40°C to 125°C
VI = 3.9 V,
f=120Hz
UNIT
V
1.178
50 IlA S 10 S 500 mA
10 =SOOmA,
See Note 1
Outpu1 noise voltage
TPS7101Q
MIN
TYP MAX
VI =2.9V,
10 = 50 IlA
Output noise-spectral density
TJ
2SoC
Output regulation
Ripple rejection
=0 V, Co =4.7 j.lF/CSRt =1 il, FB
10
20
V
nA
t CSR refers to the total series resistance, including the ESR 01 the capacitor, any series resistance added extemally, and PWB trace resistance
to CO.
:j: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to al"l\blent temperature; thermal effects must
be taken into account separately.
§ Outpu1 voltage programmed to 2.S V with closed-loop configuration (see application information).
NOTES: 1. When VI < 2.9 Vand 10> 150 mA simultaneously, pass element ros(on) increases (see Figure 27) to a point such thatthe resulting
dropout voltage prevents the regulator from maintaining the specified tolerance range.
2. To calculate dropou1 voltage, use equation:
VOO = 10· rOS(on)
rOS(on) is a function of both outpu1 current and input voltage. The parametric table lists rOS(on) lor VI = 2.4 V, 2.9 V, 3.9 V, and
S.9 V, which corresponds to dropou1 conditions for programmed output voltages of 2.S V, 3 V, 4 V, and 6 V, respectively. For other
programmed values, refer to Figure 26.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • OALLAS. TEXAS 75265
2-35
TPS71 01 Q, TPS7133Q, TPS7148Q, TPS7150Q
TPS71 01 V, TPS7133V, TPS7148V, TPS7150V
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
=
=
=
=
=
TPS7133 electrical characteristics at 10 10 mA, VI 4.3 V, EN 0 V, Co 4.7 J.1F/CSRt 1 n, SENSE
shorted to OUT (unless otherwise noted)
PARAMETER
Output voltage
TEST CONDITIONM
VI = 4.3 V,
10=10mA
4.3 V S Vi!; 10 V,
5mASloS500mA
10=10mA,
VI = 3.23 V
10= l00mA,
VI = 3.23 V
10=500mA,
VI = 3.23 V
Pass-element series resistance
(3.23 V - VOl/IO,
10 = 500 mA
VI = 3.23 V,
Input regulation
VI = 4.3 Vto 10 V,
50 !lAS lOS 500 mA
10 = 5 mA to 500 mA,
4.3 V S VI S 10 V
10 = 50 !IA to 500 mA,
4.3VSVI S 10V
Dropout voltage
Output regulation
10 = 5O!IA
Ripple rejection
f=l20Hz
10 =500 mA
Output noise-spectral density
TJ
PG trip-threshold voltage
25°C
7
47
60
-40°C to 125°C
80
25°C
235
-400C to 125°C
0.6
0.8
25°C
20
-400C to 125°C
27
21
25°C
-40°C to 125°C
30
25°C
60
120
-40°C to 125°C
25°C
43
-40°C to 125°C
40
25°C
39
-40°C to 125°C
36
n
mV
mV
mV
54
dB
49
2
274
CO= lO I1F
25°C
228
CO= lOO I1F
25°C
159
2.868
I1vNHz
I1Vrms
3
25°C
35
25°C
0.22
-40°C to 125°C
38
75
25°C
VI =2.8V
mV
300
-40°C to 125°C
-40°C to 125°C
V
400
0.47
25°C
25°C
Vo voltage decreasing from above VPG
IpG=l mA,
4.5
UNIT
8
25°C
PG hysteresis voltage
PG output low voltage
3.37
3.23
-40°C to 125°C
f=l20Hz
10HzSfSl00kHz,
cSRt=ln
3.3
25°C
-40°C to 125°C
Co= 4.7 I1F
Output noise voltag~
TPS7133Q
MIN
TYP MAX
V
mV
0.4
0.4
V
t CSR refers to the total senes resistance, Including the ESR of the capacitor, any senes reSistance added externally, and PWB trace resistance
toCO'
t Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
~TEXAS
2-36
INSTRUMENTS
POST OFFICE
sex 855303 •
DALLAS. TEXAS 75285
TPS7101 Q, TPS7133Q, TPS7148Q, TPS7150Q
TPS71 01 V, TPS7133V, TPS7148V, TPS7150V
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
TPS7148 electrical characteristics at 10 = 10 rnA, VI =5.85 V, EN =0 V, Co = 4.7 J..I.F/CSRt = 1 n, SENSE
shorted to OUT (unless otherwise noted)
PARAMETER
VI = 5.85 V,
10= 10mA
5.85 V SVI S 10 V,
5mAs 10 S 500 mA
10=10mA,
VI = 4.75 V
10=I00mA,
VI = 4.75 V
10 = 500 mA,
VI = 4.75 V
PaSs-element series resistance
(4.75 V - VOlIIO,
10=500mA
VI = 4.75 V,
Input regulation
VI=5.85Vtol0V,
5O~SIOS500mA
10=5 mA to 500 mA,
5.85 VSVI S 10V
10 = 50 ~ to 500 mA,
5.85VSVI S 10V
Output voltage
Dropout voltage
10=50~
f=120Hz
10 = 500 mA
Output noise-spectral density
TJ
PG trip-threshold voltage
25°C
IpG = 1.2 mA,
30
25·C
150
-40°C to 125°C
37
0.32
25°C
180
0.35
0.52
25°C
27
-40·C to 125·C
37
12
25°C
-40°C to 125°C
42
80
25·C
42
-40·C to 125·C
60
130
25·C
42
-40·C to 125·C
39
25°C
39
-40°C to 125°C
35
0
mV
mV
mV
53
dB
50
2
410
CO= IOI1F
25°C
328
CO= l00I1F
25°C
212
4.5
11V1-/Hz
I1Vrms
4.7
25°C
50
25·C
0.2
-40·C to 125°e
mV
250
25°C
VI = 4.12 V
V
6
54
-40°C to 125°C
-40·C to 125·C
UNIT
8
25°C
Vo voltage decreasing from above VPG
MAX
4.95
2.9
25°C
PG hysteresis voltage
PG output low voltage
4.75
-40°C to 125°C
f=120Hz
10 Hz SfS 100 kHz,
CSRt=10
TYP
4.85
25°C
-40°C to 125°C
CO=4.7I1F
Output noise voltage
MIN
-40·C to 125°C
Output regulation
Ripple rejection
TPS7148Q
TEST CONomoNst
V
mV
0.4
0.4
V
t eSR refers to the total series resistance, including the ESR of the capacitor, any series resistance added extemally, and PWB trace resistance
to CO.
:I: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken Into aocount separately.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • OAUAS, TEXAS 75265
2~7
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS71 01 V, TPS7133V, TPS7148V, TPS7150V
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
=
=
=
=
TPS7150 electrical characteristics at 10 10 rnA, VI 6 V, EN 0 V, Co 4.7 ~F/CSRt = 1 n, SENSE
shorted to OUT (unless otherwise noted)
PARAMETER
Output voltage
TEST CONDITIONs*
VI=6V,
10=10mA
6VSVIS10V,
5 mASIOS500 mA
10=10mA,
VI = 4.88 V
10= 100mA,
VI=4.88V
10= 500 mA,
VI=4.88V
Pass-element series resistance
(4.88 V - VO)/IO,
10= 500 mA
VI = 4.88 V,
Input regulation
VI=6Vt010V,
50 IJAS 10 S 500 mA
10= 5 mAto 500 mA,
6VSVIS10V
10 = 50 IJA to 500 mA,
6VSVIs10V
Dropout voltage
10= 50 IJA
f=120Hz
10 =500 mA
Output noise-spectral density
Output nOise voltage
PG trip-threshold voltage
25°C
-40°C to 125°C
25°C
2.9
6
27
32
-40°C to 125°C
47
146
25°C
-40°C to 125°C
25°C
0.29
0.32
0.47
25°C
25
32
25°C
30
-40°C to 125°C
45
25°C
65
140
-40°C to 125°C
25°C
45
-40°C to 125°C
40
25°C
42
-40°C to 125°C
36
n
mV
mV
mV
55
dB
52
2
25°C
430
CO= 1O IlF
25°C
345
CO= 1OO IlF
25°C
220
4.55
IlVNHz
IlVrms
4.75
25°C
53
25°C
0.2
-40°C to 125°C
45
86
Co =4.7 IlF
VI = 4.25 V
mV
170
-40°C to 125°C
-40°C to 125°C
V
230
25°C
Vo voltage decreasing from above VPG
IpG=1.2mA,
5.1
UNIT
8
25°C
PG hysteresis voltage
PG output low voltage
5
4.9
-40°C to 125°C
f=120Hz
10 Hz S fs 100 kHz,
CSRt= 1 n
TPS7150Q
MIN
TYP MAX
-40°C to 125°C
Output regulation
Ripple rejection
TJ
V
mV
0.4
0.4
V
t CSR refers to the total senes reSistance, Including the ESR of the capacitor, any senes resistance added extemally, and PWB trace resistance
taCo·
t Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
~TEXAS
2-38
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS7101Y, TPS7133Y, TPS7148Y, TPS7150Y
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
electrical characteristics at 10 = 10 mA, EN
shorted to OUT (unless otherwise noted)
= 0 V, Co = 4.7 ~F/CSRt = 1 n, TJ = 25°C, SENSE/FB
PARAMETER
TEST CONDITIONs*
TPS7101Y, TPS7133Y
TPS7148Y, TPS7150Y
TYP
MIN
Ground current (active mode)
EN:S; 0.5 V,
OmA:s; 10:S;500 mA
VI=VO+ 1 V,
Output current limit
VO=O,
VI= 10V
PG leakage current
Normal operation,
VPG=10V
EN hysteresis voltage
Minimum VI for active pass element
Minimum VI for valid PG
IPG =3001lA
IlA
1.2
A
IlA
165
°C
50
mV
2.05
V
1.06
V
TPS7101Y
PARAMETER
Reference voltage (measured at FB with OUT
connected to FB)
285
0.02
Thermal shutdown junction temperature
TEST CONDITIONs*
MIN
UNIT
MAX
TYP
MAX
1.178
UNIT
V
VI = 3.5 V,
10=10mA
VI = 2.4 V,
501lA:S;10:S;150mA
VI = 2.4 V,
150mA:s; 10:S;500 mA
0.83
VI = 2.9 V,
50 1lA:S; 10:S; 500 mA
0.52
VI=3.9V,
50 1lA:S; 10:S; 500 mA
0.32
VI=5.9V,
50 1lA:S; 10:S; 500 mA
0.23
VI =2.5 Vto 10V,
See Note 1
50 IlA :s; 10 :s; 500 mA,
2.5V:S;VI:S;10V,
See Note 1
10 = 5 mA to 500 rnA,
2.5 V:s; VI:S; 10 V,
See Note 1
10 = 50 IlA to 500 mA,
Ripple rejection
VI = 3.5 V,
10=50 IlA
f= 120 Hz,
Output nOise-spectral density
VI =3.5 V,
f=120Hz
VI = 3.5 V,
10 Hz:S;f:s; 100 kHz,
CSRt=IQ
CO=4.7JLF
CO= 10JLF
89
CO= l00JLF
74
PG hysteresis voltage§
VI = 3.5 V,
Measured at VFB
12
PG output low voltage§
VI=2.13V,
IpG = 400 IlA
0.1
V
FB Input current
VI = 3.5 V
VI = 3.5 V
0.1
nA
Pass-element series resistance (see Note 2)
Input regulation
Output regulation
Output noise voltage
0.7
Q
18
mV
14
mV
22
mV
59
dB
2
JLV/*iZ
95
JLVrms
mV
t CSR refers to the total senes reSistance, Including the ESR of the capacitor, any senes resistance added externally, and PWB trace resistance
to CO.
:t: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
§ Output voltage programmed to 2.5 V with closed-loop configuration (see application information).
NOTES: 1. When VI < 2.9 V and 10 > 150 mA simultaneously, pass element rOS(on) increases (see Figure 27) to a point such thatthe resulting
dropout voltage prevents the regulator from maintaining the specified tolerance range.
2. To calculate dropout voltage, use equation:
Voo = 10' roS(on)
rOS(on) is a function of both output current and input voltage. The parametric table lists rOS(on) for VI = 2.4 V, 2.9 V, 3.9 V, and
5.9 V, which corresponds to dropout conditions for programmed output voltages of 2.5 V, 3 V, 4 V, and 6 V, respectively. For other
programmed values, refer to Figure 26.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-39
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS7101 Y, TPS7133Y, TPS7148Y, TPS7150Y
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
=
=
=
=
electrical characteristics at 10 10 mA, EN 0 V, Co 4.7 J.lF/CSRt 1 0, TJ = 25°C, SENSE shorted
to OUT (unless otherwise noted) (continued)
PARAMETER
Output voltage
Dropout voltage
Pass-element series resistance
TEST CONDmoNS*
TPS7133Y
MIN
TYP MAX
UNIT
V
VI=4.3V.
10=10mA
3.3
VI = 3.23V.
10=10mA
0.02
VI = 3.23 V.
10= 100 rnA
47
VI = 3.23V.
10= 500 rnA
235
(3.23 V - VO)1I0.
10 = 500 rnA
VI =3.23V.
mV
0.47
Q
4.3 VSVI S 10V.
10=5 rnA to 500 rnA
21
mV
4.3 VSVI S 10V.
10 = 50 IIA to 500 rnA
30
mV
Ripple rejection
VI = 4.3 V.
1=120Hz
10= 5011A
54
10= 500 rnA
49
Output noise-spectral density
VI = 4.3V.
1= 120 Hz
VI =4.3V.
10HzSIS100kHz.
CSRt=IQ
CO=4.7I1F
274
CO= IO I1F
228
CO=I00I1F
159
Output regulation
Output noise voltage
PG hysteresis voltage
VI=4.3V
PG output low voltage
VI =2.8V.
PARAMETER
Output voltage
Dropout voltage
Pass-element series resistance
Output regulation
I1V/VHz
I1VrmS
mV
0.22
V
TPS7148Y
MIN
TYP MAX
UNIT
V
VI = 5.B5 V.
10=10mA
4.85
VI = 4.75 V.
10=10mA
0.08
VI = 4.75 V.
10= 100 rnA
30
VI = 4.75 V.
10 = 500 rnA
150
(4.75 V - VO)IIO.
10=500 rnA
VI = 4.75 V.
5.85 V S VI S 10V.
10= 5 rnA to 500 rnA
12
mV
5.85VSVIS10V.
IIA to 500 rnA
10= 50 IIA
42
mV
10= 500 rnA
50
Ripple rejection
Output noise-spectral density
VI = 5.85 V.
Output noise voltage
2
35
IpG=1 rnA
TEST CONDITIONS*
VI = 5.B5V.
1=120Hz
-
dB
VI = 5.85 V.
10 Hz SIs 100 kHz.
CSRt=1 Q
PG hysteresis voltage
VI = 5.B5 V
PG output low voltage
VI=4.12V.
10 = 50
1= 120 Hz
mV
0.32
Q
53
dB
2
CO=4.7I1F
410
CO= IO I1F
328
CO= l00I1F
212
IPG = 1.2 rnA
0.2
I1V/VHz
I1VrmS
50
mV
0.4
V
t CSR relers to the total senes raslstance. Including the ESR 01 the capacitor. any senes resistance added externally. and PWB trace resistance
~
to CO.
:j: P\Jlse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
~1ExAs
2-40
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS7101 Y, TPS7133Y, TPS7148Y, TPS7150Y
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
=
=
=
=
=
electrical characteristics at 10 10 rnA, EN 0 V, Co 4.7 f..LF/CSRt 1 Q, TJ 25°C, SENSE shorted
to OUT (unless otherwise noted) (continued)
PARAMETER
Output voltage
Dropout voltage
Pass-element series resistance
Output regulation
Ripple rejection
Output noise-spectral density
Output noise voltage
TEST CONDITIONS*
TPS7l50Y
MIN
TYP
VI=6V,
10= 10mA
5
VI = 4.88 V,
10=10mA
0.13
VI =4.88 V,
10=100mA
27
VI =4.88 V,
10 = 500 ItA
146
(4.88 V - VOl/IO,
10=500mA
VI = 4.88 V,
0.29
MAX
UNIT
V
mV
0
6 V S Vp>10 V,
10 = 5 mAto 500mA
30
mV
6VSVIS10V,
10 = 50 ItA to 500 mA
45
mV
VI=6V,
f= 120 Hz
10=50 ItA
55
10 = 500 mA
52
VI=6V,
f= 120 Hz
VI=6V,
10HzSfS100kHz,
CSRt=10
CO=4.7I1F
430
CO= 1O I1F
345
CO=100I1F
220
53
mV
PG= 1.2mA
0.2
V
PG hysteresis voltage
VI=6V
PG output low voltage
VI =4.25 V,
2
dB
I1VNHz
I1VnnS
t CSR refers to the total senes resistance, Including the ESR of the capaCitor, any senes resistance added externally, and PWB trace resistance
to CO.
:j: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS. TEXAS 75265
2--41
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS71 01 V, TPS7133V, TPS7148V, TPS7150V
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
vs Output current
vs Input voltage
IQ
Quiescent current
VDO
Typical Dropout voltage
vs Output current
dVDO
Change in dropout voltage
vs Free-air temperature
dVO
Change in output voltage
vs Free-air temperature
Vo
Output voltage
vs Input voltage
dVO
Change in output voltage
vs Input voltage
Vo
Output voltage
vs Output current
Ripple rejection
vs Frequency
Output spectral noise density
vs Frequency
rDS(on)
R
Pass-element resistance
vs Input voltage
Divider resistance
vs Free-air temperature
II (SENSE)
SENSE current
vs Free-air temperature
FB leakage current
vs Free-air temperature
vs Free-air temperature
VI
II(EN)
I Minimum input voltage for active-pass element
vs Free-air temperature
I Minimum input voltage for valid PG
vs Free-air temperature
Input current (EN)
vs Free-air temperature
Output voltage response from Enable (EN)
VPG
Power-good (PG) voltage
vs Output voltage
CSR
Compensation Series Resistance
vs Output current
CSR
Compensation Series Resistance
vs Ceramic capacitance
CSR
Compensation Series Resistance
vs Output current
CSR
Compensation Series Resistance
vs Ceramic capacitance
~TEXAS
2-42
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS71 01 V, TPS7133V, TPS7148V, TPS7150V
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
TYPICAL CHARACTERISTICS
QUIESCENT CURRENT
vs
OUTPUT CURRENT
355
345
CC
::I.
T~=25~C
~-~
- -
335 r- TPS71xx, VI = 10 V
cc::I.
I
C
325
"
315
~
0
I
~
c3
C
.
III
u
QUIESCENT CURRENT
vs
INPUT VOLTAGE
305
•!!!
a"
I
9
295 r- TPS7150, VI = 6 V
I
285
l
TPS7148, VI = 5.85 V
265
I
I
275
I
I
50~~J~--+--+--+-~--~-r~--;
TPS7133, VI = 4.3 V
o
o~~~--~~--~~--~~~~
o
50 100 150 200 250 300 350 400 450 500
2
3
10 - Output Current - mA
4
5
6
7
8
9
10
VI - Input Voltage - V
Figure 5
Figure 6
TPS7148Q
QUIESCENT CURRENT
vs
FREE-AIR TEMPERATURE
400
I
DROPOUT VOLTAGE
vs
OUTPUT CURRENT
0.3
I
VI'" VO{nom) + 1 V
10=10mA
CC
/
350
::I.
I
/'
C
§
300
0
1
a"
/
250
I
9
200
150
-50
/
I
I
TA= 25°C
0.25
/'
TPS71
>
I
III
0.2
~
0.15
L.(V
!
/'
'5
0
/
0.1
/
0.05
/
~
~
~
o
-25
vV
a.
a
25
50
75
100
0
TA - Free-Air Temperature - °C
125
v/
o
r
~
~~
0
:::::
~PS7~50
50 100 150 200 250 300 350 400 450 500
10 - Output Current - mA
FigureS
Figure 7
-!i1TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-43
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS7101V, TPS7133V, TPS7148V, TPS7150V
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
TYPICAL CHARACTERISTICS
CHANGE IN DROPOUT VOLTAGE
vs
FREE-AIR TEMPERATURE
10
10
8
=e
&
4
~
2
I
0
I
V
L
/
-2
-4
-6
L
-8
-1~50
III
10
~
5
~
0
0
GI
CJI
-5
.!
0
-10
c
I
Jl
50
Figure 10
OUTPUT VOLTAGE
vs
INPUT VOLTAGE
5
25
TA - Free-Air Temperature - °C
Figure 9
TA = 25°C
RL=10Q
/'
V
./
.5
V
-25
VI = VO(nom) + 1 V
10= 10 mA
'S
//
O
15
=e
L'r"
.5
f
,
/
6
~
20
./'
=100 mA
I
~
CHANGE IN OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
POST OFFICE BOX 6S5303 • DALLAS, TEXAS 75265
10
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS7101V, TPS7133V, TPS7148V, TPS7150V
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
TYPICAL CHARACTERISTICS
TPS7101Q
TPS7133Q
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
2.52
3.34
_I
TA = 25°C
2.515
>
..
TA=25°C
f- Vo Programmed to 2.5 V
3.33
2.51
>
I
:i'
2.505
"S
2.5
~
2.495
~
QI
Q
:l!!
3.31
"S
3.3
100.
0
VI= 10V
I
3.29
~
':::::
~
~
3.32
I
~
~ VI=3.5V
~
2.485
3.28
3.27
o
100
200
400
300
3.26
500
o
100
200
Figure 13
4.92
TPS7148Q
TPS7150Q
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
5.06
TA=25°C
I
>
I
"S
4.86
~
I
~
.
4.88
4.87 ~
0
4.85
5.03
5.02
Q
"'--r-.
:l!!
5.01
"S
5
~
VI = 5.85 V
1'-
~
0
VI=10V
4.84
I
~
4.83
4.95
200
400
300
500
VI=6V
r---
J.
VI=10V
4.98
4.96
100
."-..
4.97
4.81
o
~
4.99
4.82
4.8
.!
5.04
4.89
I
~
500
5.05 t- TA = 25°C
4.9
.
400
Figure 14
I
4.91
300
10 - Output Current - rnA
10 - Output Current - mA
>
VI = 10 V
~.
~
2.49
2.48
~ t'-'----..
4.94
o
10 - Output Current - mA
Figure 15
100
300
400
200
10 - Output Current - mA
500
Figure 16
:II
TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-45
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS71 01 V, TPS7133V, TPS7148V, TPS7150V
LOW;.DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
TYPICAL CHARACTERISTICS
TPS7133Q
RIPPLE REJECTION
TPS7101Q
RIPPLE REJECTION
vs
vs
FREQUENCY
FREQUENCY
70
70
m
'V
~
~ RL=1ookO ~
50
I
~
c
40
40
,g
30
J
30
II:
'ii.
20
GI
1:
D!
~WL=lOOkO :\
50
l-
m
0
1"il'
TA=25°C
VI=3.5V
~
20
Co = 4.7 IlF{CSR = 10)
No Input Capacitance
10 Vo Programmed to 2.5 V
11111111111IW::R~~:~~:~
o
10
lK
100
10K
RL=5000
io"
I
I"-'
I
GI
a.
I'
RL=5000
11I1II.ti
1"1
D!
10
0
~
100K
1M
-10
10
10M
100
vs
vs
FREQUENCY
70
50
1
'iii"
GI
'ii.
a.
1'\
I'- RL = 100 kO
RL=5000
0
-10
10
I""
"
TA=25°C
VI=3.5V
CO=4.7IlF {CSR=10)
No Input Capacitance
",,'"
100
""'"1 k
0
40
II:
30
t
20
10
50
I
30
D!
m
"cI
~
II:
"'"10 k
10"
&"
r-
I
100 k
f - Frequency - Hz
RL= 100
r~
RL=5OO0
20
~
TA=25°C
VI =3.5V
10
CO=4.7IlF {CSR=10)
No Input Capacitance
J.
1M
c- RL= 100 kO ~
10 M
o
10
""'"
100
""'"
""'"
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS, TEXAS 75265
...
\
1k
10k
lOOk
f - Frequency - Hz
Figure 20
Figure 19
2-46
1M
,
~
60
~
RL= 100
100 k
TPS7150Q
RIPPLE REJECTION
~
40
10 k
Figure 18
70
0
1k
FREQUENCY
~
~
f - Frequency - Hz
TPS7148Q
RIPPLE REJECTION
"cI
~
IJJllIIIL 111111111 111111111 I
Figure 17
60
11\11111
RLI=ll00
TA=25°C
VI=3.5V
Co = 4.7 ItF (CSR = 10)
No Input Capacitance
f - Frequency - Hz
m
r-
'V
I
c
I
60
60
~
[Nil
J
1M
10M
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS7101Y, TPS7133Y, TPS7148Y, TPS7150Y
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
TYPICAL CHARACTERISTICS
TPS7101Q
TPS7133Q
OUTPUT SPECTRAL NOISE DENSITY
OUTPUT SPECTRAL NOISE DENSITY
vs
vs
FREQUENCY
FREQUENCY
10
TA=25°C
No Input Capacitance
VI =3.5V
Vo Programmed to 2.5 V
,
1$
~
~
1\
I
fc
~~
Co = 4.7 I1F(CSR = 10
Co = 10 I1F (CSR = 1 0
.!
51
lia.
~
0.1
I
~
OJ
c
1\.\
.
TA=25°C
No Input Capacitance
VI=4.3V
~v
et;
U)
II
I I 11111
CO=10I1F(CS~,~1 0)
II I
II
Co =4.7 I1F(CSR= 1 0)
~
Co = 100 I1F (CSR = 1 0)
!II
'0
z
a.
U)
OJ
a.
OJ
,
~
:I.
,
I\,
z
1$:>
.!
1,\
'0
e
10
~
0.1
OJ
a.
"S
~
0
r--..
0
Co = 10?,~~ (CSR = 10)_./
0.01
0.01
10
10
f - Frequency - Hz
f - Frequency - Hz
Figure 21
Figure 22
TPS7148Q
TPS7150Q
OUTPUT SPECTRAL NOISE DENSITY
OUTPUT SPECTRAL NOISE DENSITY
vs
vs
FREQUENCY
FREQUENCY
10
10
TA = 25°C
No Input Capacitance
VI =5.85 V
11111111111111
Co = 10 I1F(CSR = 10)
II I 11111111 I I
Co = 4.7 !iF (CSR = 1 0)
1$
~
:I.
\
I
~
OJ
~
~
51
'0
z
i
OJ
a.
OJ
0.01
10
IIIIIII
100
\
fc
:~
1/
b"J~
I IFI(~~~-_10
I 1)1
0-4.711
II
II IIIII II
TA = 25°C
No Input capacitance
VI=6V
z
II\.
0.1
a.
U)
OJa.
OJ
C~ ~ :~~Ilir (~S~ 1=1 ~ I~)
0
\
I
eg
"
0.1
~
.!
.~
r'I.
U)
Co = 10,~~ (CSR = 1 0)
~
0
f-- Co = 100 I1F (CSR = 1 0)
IIIIII
1k
10 k
f - Frequency - Hz
100k
0.01
10
IIUI
100
1k
10 k
f - Frequency - Hz
100 k
Figure 24
Figure 23
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-47
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS71 01 V, TPS7133Y, TPS7148Y, TPS7150Y
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
TYPICAL CHARACTERISTICS
PASS-ELEMENT RESISTANCE
DIVIDER RESISTANCE
vs
vs
INPUT VOLTAGE
FREE-AIR TEMPERATURE
1.1
1.2
TA=25°C
VI(FB) = 1.12 V
c:
1.1
I
til
u
c
~
r!
C
til
E
~..
:.
I
"C
~
e
0.9
.........
:E
I
8c
/ ' lo=500mA
0.7
J!I
~r
,
0.6
0.5
j
\ :\
0.4
r
a:
Iii
lo=1oomA
~
0.3
a:
0.6
0.1
4
"'-r--:-TPS7133
5
6
7
8
VI-Input Voltage - V
9
0.4
-SO
10
-25
0
25
50
75
100
TA - Free-Air Temperature - °C
ADJUSTABLE VERSION
FB LEAKAGE CURRENT
vs
vs
FREE-AIR TEMPERATURE
FREE-AIR TEMPERATURE
6
I
E
~
:::I
:.l
VI = VO(nom) + 1 V
VI(sense) = VO(nom)
5.6
5:
..
c
III
:n
I
i.,c
~
5.2
5
4.8
4.6
4.4
-SO
/
/
0.5
cc
I
I
0.4
/
/
C
§
(.)
III
CI
/
0.3
.=
~
0.2
III
u.
0.1
/
./
o
-25
0
25
SO
75
100
TA - Free-Air Temperature - °C
125
-SO
Figure 27
-25
0
25
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS. TEXAS 75265
50
/
75
/
100
TA - Free·Alr Temperature - °C
Figure 28
~1ExAs
2-48
I
VFB=2.5V
/
c
III
:/
0.6
V
/
5.4
125
Figure 26
FIXED-OUTPUT VERSIONS
SENSE PIN CURRENT
:c::I.
r--- r::::::
.......... .......
Figure 25
5.8
100..
0.5
0.2
3
::::::::c:::--
0.8
~
...... - '
2
0.9
0.7
I
"" ~
TPS71~
TPS71 SO
c:
0.8
VI = VO(nom) + 1 V
VI(sense) = VO(nom)
...........
125
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS71 01 V, TPS7133V, TPS7148V, TPS7150V
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
TYPICAL CHARACTERISTICS
MINIMUM INPUT VOLTAGE FOR ACTIVE
PASS ELEMENT
MINIMUM INPUT VOLTAGE FOR VALID
POWER GOOD (PG)
vs
vs
FREE-AIR TEMPERATURE
FREE-AIR TEMPERATURE
1.1
2.1
RL=5oon
2.09
>
I
CD
!
~
'5
a.
2.07
./
2.06
2.04
!E
2.03
>"
2.02
I
2.01
2
-50
V
>
I
/
,./
V
-25
/
/'
L
1.09
III
!
~
~V
2.05
.5
E
E
"
'c
/
2.08
'5
a.
1.08
.5
V
E
"E
1.07
C
!E
I
>"
0
25
50
75
100
""""-
1.06
1.05
-50
125
-25
TA - Free-Air Temperature - °C
0
V
25
V
50
-LV
V
L
75
100
125
TA - Free-Air Temperature - °C
Figure 30
Figure 29
EN INPUT CURRENT
vs
FREE-AIR TEMPERATURE
100
90
ccc
I
C
II
70
60
50
I
~
J .1
V
§
.5
I
=VI(EN) =10 V
80
0
'5
a.
VI
I
/
40
1/
30
- --
20
10
o
-40 -20
0
20
40
....- /
60
80
100 120 140
TA - Free-AIr Temperature - °C
Figure 31
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-49
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS7101Y, TPS7133Y, TPS7148Y, TPS7150Y
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
TYPICAL CHARACTERISTICS
OUTPUT VOLTAGE RESPONSE FROM
ENABLE (EN)
>
VO(nom) -
I
i
r-'
I""
I
V
~
I
I
~
TA = 25°C
RL=5000
Co = 4.711F (ESR = 10)
No Input Capacitance
6
4
::;-
2
i
~
o Iffi
o
-2
20
40
60
80 100 120 140
Time-1lS
Figure 32
POWER-GOOD (PG) VOLTAGE
vs
OUTPUT VOLTAGE
6~--~----~--~----~--~
TA = 25°C
PG Pulled Up to 5 V With 5 k.Q
::;-
5r----+----~~~-r---r---~
i
~41----+--+-I---+-f---+--~
~
'8
3
'l
1
2
1---+---++---++---+----1
I
~ 1 I__-_+---H----++---+--~
>
VO-Output Voltage (VO as a percent ofVO(nom»- %
Figure 33
~TEXAS
2-50
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS7101 Y, TPS7133Y, TPS7148Y, TPS7150Y
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
TYPICAL CHARACTERISTICS
TYPICAL REGIONS OF STABILITY
TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE
vs
OUTPUT CURRENT
COMPENSATION SERIES RESISTANCE
vs
OUTPUT CURRENT
Cl
Cl
I
I
~
I
~
~
j
.!
~
c
o
I!
I~
E
8I
I
II:
II:
!3
!3
50 100 150 200 250 300 350 400 450 500
50 100 150 200 250 300 350 400 450 500
10 - Output Current - mA
10 - Output Current - mA
Figure 35
Figure 34
TYPICAL REGIONS OF STABILITY
TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE
vs
ADDED CERAMIC CAPACITANCE
COMPENSATION SERIES RESISTANCE
vs
ADDED CERAMIC CAPACITANCE
100
Cl
Cl
..
I
I
Ij
u
c
J!!
~
r!
10
i..
III
c
i
i..c
8.
E
~
8
I
I
~
II:
III
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
Ceramic Capacitance -I!F
1
Ceramic Capacitance -I!F
Figure 37
Figure 36
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-51
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS7101 Y, TPS7133Y, TPS7148Y, TPS7150Y
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
TYPICAL CHARACTERISTICS
TYPICAL REGIONS OF STABILlTYf
TYPICAL REGIONS OF STABILITYt
COMPENSATION SERIES RESISTANCE
COMPENSATION SERIES RESISTANCE
vs
vs
OUTPUT CURRENT
OUTPUT CURRENT
c:
c:
I
I
II
II
t
8
i
I
I
~
~
0.1 '---'----'--'---'--"---'----'--'---'----'
o
0.1 '---'-........--'----'--'---'-........-
o
50 100 150 200 250 300 350 400 450 500
........--'----'
50 100 150 200 250 300 350 400 450 500
10 - Output Current - mA
10 - Output Current - mA
Figure 38
Figure 39
TYPICAL REGIONS OF STABILlTYf
TYPICAL REGIONS OF STABILITYt
COMPENSATION SERIES RESISTANCE
COMPENSATION SERIES RESISTANCE
vs
vs
ADDED CERAMIC CAPACITANCE
ADDED CERAMIC CAPACITANCE
c:
I
I
.~
!7l
c
i
E
8
I
II:
~
0.1 L-........I..---I_..L....-l-_.L..........I..---I_..L..........L.--I
0.1 '--........--'--'---'--"--........---'--'---'----'
o 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
o
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
Ceramic capacitance - J1F
Ceramic Capacitance - J1F
Figure 41
Figure 40
t CSR values below 0.1 0 are not recommended.
~TEXAS
2-52
INSTRUMENTS
POST OFFICE
eox 655303 •
DALlAS, TEXAS 75265
1
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS7101Y, TPS7133Y, TPS7148Y, TPS7150Y
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
TYPICAL CHARACTERISTICS
IN
To load
OUTI-------.---~E
+ Co
'--...::,::.:::..........
Ccert
Rl
CSR
t Ceramic capacitor
Figure 42. Test Circuit for Typical Regions of Stability (Figures 34 through 41)
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-53
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS7101Y, TPS7133Y, TPS7148Y, TPS7150Y
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
APPLICATION INFORMATION
The TPS71 xx series of low-dropout (LDO) regulators is designed to overcome many of the shortcomings of
earlier-generation LDOs, while adding features such as a power-saving shutdown mode and a power-good
indicator. The TPS71xx family includes three fixed-output voltage regulators: the TPS7133 (3.3 V), the
TPS7148 (4.85 V), and the TPS7150 (5 V). The family also offers an adjustable device, the TPS71 01 (adjustable
from 1.2 V to 9.75 V).
device operation
The TPS71 xx, unlike many other LDOs, features very low quiescent currents that remain virtually constant even
with varying loads. Conventional LDO regulators use a pnp-pass element, the base current of which is directly
proportional to the load current through the regulator (IB = IcI~). Close examination of the data sheets reveals
that those devices are typically specified under near no-load conditions; actual operating currents are much
higher as evidenced by typical quiescent current versus load current curves. The TPS71xx uses a PMOS
transistor to pass current; because the gate of the PMOS element is voltage driven, operating currents are low
and invariable over the full load range. The TPS71 xx specifications reflect actual performance under load.
Another pitfall associated with the pnp-pass element is its tendency to saturate when the device goes into
dropout. The resulting drop in ~ forces an increase in IB to maintain the load. During power up, this translates
to large start-up currents. Systems with limited supply current may fail to start up. In battery-powered systems,
it means rapid battery discharge when the voltage decays below the minimum required for regulation. The
TPS71 xx quiescent current remains low even when the regulator drops out, eliminating both problems.
Included in the TPS71xx family is a 4.85-V regulator, the TPS7148. Designed specifically for 5-V cellular
systems, its 4.85-V output, regulated to within ± 2%, allows for operation within the low-end limit of 5-V systems
specified to ± 5% tolerance; therefore, maximum regulated operating lifetime is obtained from a battery pack
before the device drops out, adding crucial talk minutes between charges.
The TPS71xx family also features a shutdown mode that places the output in the high-impedance state
(essentially equal to the feedback-divider reSistance) and reduces quiescent current to under 2 !lA. If the
shutdown feature is not used, EN should be tied to ground. Response to an enable transition is quick; regulated
output voltage is reestablished in typically 120 ~.
minimum load requirements
The TPS71 xx family is stable even at zero load; no minimum load is required for operation.
SENSE-pin connection
The SENSE pin of fixed-output devices must be connected to the regulator output for proper functioning of the
regulator. Normally, this connection should be as short as possible; however, the connection can be made near
a critical circuit (remote sense) to improve performance at that point. Internally, SENSE connects to a
high-impedance wide-bandwidth amplifier through a resistor-divider network and noise pickup feeds through
to the regulator output. Routing the SENSE connection to minimize/avoid noise pickup is essential. Adding an
RC network between SENSE and OUT to filter noise is not recommended because it can cause the regulator
to oscillate.
external capacitor requirements
An input capaCitor is not required; however, a ceramic bypass capacitor (0.047 pF to 0.1 IlF) improves load
transient response and noise rejection if the TPS71 xx is located more than a few inches from the power supply.
A higher-capacitance electrolytic capacitor may be necessary if large (hundreds of milliamps) load transients
with fast rise times are anticipated.
~TEXAS
2-54
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS. TEXAS 75265
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS7101 Y, TPS7133Y, TPS7148Y, TPS7150Y
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
APPLICATION INFORMATION
external capacitor requirements (continued)
As with most LDO regulators, the TPS71 xx family requires an output capacitor for stability. A low-ESR 10-IlF
solid-tantalum capacitor connected from the regulator output to ground is sufficient to ensure stability over the
full load range (see Figure 43). Adding high-frequency ceramic or film capacitors (such as power-supply bypass
capacitors for digital or analog ICs) can cause the regulator to become unstable unless the ESR of the tantalum
capacitor is less than 1.2 0 over temperature. Capacitors with published ESR specifications such as the
AVX TPSD1 06K035R0300 and the Sprague 593D106X0035D2W work well because the maximum ESR at
25°C is 300 ma (typically, the ESR in solid-tantalum capacitors increases by a factor of 2 or less when the
temperature drops from 25°C to -40°C). Where component height and/or mounting area is a problem,
physically smaller, 10-IlF devices can be screened for ESR. Figures 34 through 41 show the stable regions of
operation using different values of output capacitance with various values of ceramic load capacitance.
In applications with little or no high-frequency bypass capacitance « 0.2 IlF), the output capacitance can be
reduced to 4.7IlF, provided ESR is maintained between 0.7 and 2.5 O. Because minimum capacitor ESR is
seldom if ever specified, it may be necessary to add a 0.5-0 to 1-0 resistor in series with the capacitor and limit
ESR to 1.50 maximum. As show in the ESR graphs (Figures 34 through 41), minimum ESR is not a problem
when using 10-IlF or larger output capacitors.
Below is a partial listing of surface-mount capacitors usable with the TPS71 xx family. This information (along
with the ESR graphs, Figures 34 through 41) is included to assist in selection of suitable capacitance for the
user's application. When necessary to achieve low height requirements along with high output current and/or
high ceramic load capacitance, several higher ESR capacitors can be used in parallel to meet the guidelines
above.
All load and temperature conditions with up to 1 IlF of added ceramic load capacitance:
PART NO.
T421 C226M01 OAS
MFR.
Kemet
VALUE
MAX ESRt
221lF, 10 V
0.5
2.8 x 6 x3.2
SIZE (H x L x W)t
593D156X0025D2W
Sprague
151lF, 25 V
0.3
2.8 x 7.3 x 4.3
593D106X0035D2W
Sprague
10 IlF, 35 V
0.3
2.8 x 7.3 x 4.3
TPSD106M035R0300
AVX
10 IlF, 35 V
0.3
2.8 x 7.3 x 4.3
Load < 200 mA, ceramic load capacitance < 0.2 IlF, full temperature range:
SIZE (H x L x W)t
MFR.
VALUE
MAX ESRt
592D156X0020R2T
Sprague
151lF, 20 V
1.1
1.2x7.2x6
595D156X0025C2T
Sprague
151lF, 25 V
1
2.5 x 7.1 x 3.2
595D106X0025C2T
Sprague
10 IlF, 25 V
1.2
2.5 x 7.1 x 3.2
293D226XOO16D2W
Sprague
221lF, 16 V
1.1
2.8 x 7.3 x 4.3
PART NO.
Load < 100 mA, ceramic load capacitance < 0.2IlF, full temperature range:
PART NO.
t
MFR.
VALUE
MAX ESRt
195D106X06R3V2T
Sprague
10 IlF, 6.3 V
1.5
1.3 x 3.5 x 2.7
SIZE (H x L x W)t
1.3 x7x2.7
195D106XOO16X2T
Sprague
10IlF, 16 V
1.5
595D156XOO16B2T
Sprague
151lF, 16 V
1.8
1.6 x 3.8 x 2.6
695D226XOO15F2T
Sprague
221lF, 15 V
1.4
1.8 x 6.5 x 3.4
695D156X0020F2T
Sprague
151lF, 20 V
1.5
1.8 x 6.5 x 3.4
695D106X0035G2T
Sprague
10 IlF, 35 V
1.3
2.5 x 7.6 x 2.5
Size is in mm. ESR is maximum resistance at 100 kHz and TA = 25°C. Listings are sorted by height.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-55
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS71 01 V, TPS7133Y, TPS7148Y, TPS7150Y
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
APPLICATION INFORMATION
external capacitor requirements (continued)
TPS71xxt
IN
VI
PG
20
15
IN
IN
C1
0.1 I1F
50V
6
PG
250kO
Vo
EN
GND
tTPS7133. TPS7148. TPS7150 (fixed-voltage options)
Figure 43. Typical Application Circuit
programming the TPS7101 adjustable LDO regulator
Programming the adjustable regulators is accomplished using an external resistor divider as shown in
Figure 44. The equation governing the output voltage is:
V0
= V ref . (1 + ~~)
where
Vref = reference voltage, 1.178 V typ
~lExAs
2-56
INSTRUMENTS
POST OFFICE BOX 665303 • DALLAS. TEXAS 75266
TPS7101Q,TPS7133Q,TPS7148Q,TPS7150Q
TPS71 01 Y, TPS7133Y, TPS7148Y, TPS7150Y
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F - NOVEMBER 1994 - REVISED JANUARY 1997
APPLICATION INFORMATION
programming the TPS7101 adjustable LOO regulator (continued)
Resistors R1 and R2 should be chosen for approximately 7-J.IA divider current. A recommended value for R2
is 169 kQ with R1 adjusted for the desired output voltage. Smaller resistors can be used, but offer no inherent
advantage and consume more power. Larger values of R1 and R2 should be avoided as leakage currents at
FB will introduce an error. Solving equation 1 for R1 yields a more useful equation for choosing the appropriate
resistance:
=
R1
(Vo
Vref
-1)' R2
OUTPUT VOLTAGE
PROGRAMMING GUIDE
TPS7101
VI
--_---I
IN
PG
O.1I1F '±'
OUTPUT
VOLTAGE
I--_+-
>2.7 V
L-
OUT 1---4>-1--.......-
---lEN
Vo
cO.5V
FB~---
GND
R2
R1
R2
UNIT
2.5V
191
169
kQ
3.3V
309
169
ill
3.6 V
348
169
ill
4V
402
169
ill
5V
549
169
ill
6.4 V
750
169
kQ
Figure 44. TPS7101 Adjustable LOO Regulator Programming
power-good Indicator
The TPS71xx features a power-good (PG) output that can be used to monitor the status of the regulator. The
internal comparator monitors the output voltage: when the output drops to between 92% and 98% of its nominal
regulated value, the PG output transistor turns on, taking the signal low. The open-drain output requires a pullup
resistor. If not used, it can be left floating. PG can be used to drive power-on reset circuitry or as a low-battery
indicator. PG does not assert itself when the regulated output voltage falls outside the specified 2% tolerance,
but instead reports an output voltage low, relative to its nominal regulated value.
regulator protection
The TPS71 xx PMOS-pass transistor has a built-in back diode that safely conducts reverse currents when the
input voltage drops below the output voltage (e.g., during power down). Current is conducted from the output
to the input and is not internally limited. When extended reverse voltage is anticipated, external limiting may be
appropriate.
The TPS71xx also features internal current limiting and thermal protection. During normal operation, the
TPS71 xx limits output current to approximately 1 A. When current limiting engages, the output voltage scales
back linearly until the overcurrent condition ends. While current limiting is designed to prevent gross device
failure, care should be taken not to exceed the power dissipation ratings of the package. If the temperature of
the device exceeds 165°C, thermal-protection circuitry shuts it down. Once the device has cooled, regulator
operation resumes.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-57
2-58
TPS71 025
LOW·DROPOUT VOLTAGE REGULATOR
SLVSI62A-MAY 1997- REVISED MAY 1996
o OR P PACKAGE
• 2.5-V Fixed-Output Regulator
(TOP VIEW)
• Very Low-Dropout (LDO) Voltage ••• 57 mV
Typical at 10 = 100 mA
G N o [ ] a NC
EN 2
7 SENSE
IN
3
6 OUT
IN 4
5 OUT
• Very Low Quiescent Current, Independent
of Load •.• 292 ~ Typ
• Extremely Low Sleep-State Current,
0.5~Max
• 2% Tolerance Over Specified Conditions
PWPACKAGE
(TOP VIEW)
• Output Current Range .•• 0 mA to 500 mA
• Available in Space Saving a-Pin SOIC and
20-Pln TSSOP Packages
GND
GND
GND
NC
NC
EN
• O°C to 125°C Operating Junction
Temperature Range
description
The TPS71025 low-dropout regulator offers an
order of magnitude reduction in both dropout
voltage and quiescent current over conventional
LOO performance. The improvement results from
replacing the typical pnp pass transistor with a
PMOS device.
NC
NC
NC
NC
NC
SENSE
OUT
OUT
NC
IN
NC
NC - No internal connection
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (maximum of 95 mV
at an output current of 100 mAl and is directly proportional to the output current (see Figure 1). Additionally,
since the PMOS pass element is a voltage-driven device, the quiescent current is very low and remains
independent of output loading (typically 292jlA over the full range of output current, 0 mA to 500 mAl. These
two key specifications yield a significant improvement in operating life for battery-powered systems. The
TPS71 025 also features a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator,
reducing the quiescent current to 0.5jlA maximum at TJ =25°C.
AVAILABLE OPTIONS
OUTPUT VOLTAGE
(V)
TJ
O°Cto 125°C
PACKAGED DEVICES
MIN
TVP
MAX
SMALL OUTLINE
(D)
PLASTIC DIP
(P)
TSSOP
(PW)
2.45
2.5
2.55
TPS71025D
TPS71025P
TPS71025PWLE
CHIP FORM
(V)
TPS71025Y
The D package IS avallabe taped and reeled. Add R suffix to deVice type (e.g., TPS71 025DR). The PW package IS only available left-end taped
and reeled and is indicated by the LE suffix on the device type.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Copyright © 1997, Texas Instruments Incorporated
2-59
TPS71 025
LOW-DROPOUT VOLTAGE REGULATOR
SLVS162A-MAY 1997- REVISED MAY 1998
0.5
T~=2~OC
0.4
V
>
I
Gl
I
~
'5
0
a.
e
0.3
/
0.2
V
/
V
V
V~
Q
0.1
o/
o
V
/
0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5
10 - Output Current - A
Figure 1. Dropout Voltage Versus Output Current
functional block diagram
OUT
r - - - - - - SENSE
260 k.Q
233 k.Q
GND~'----~~~
t Switch positions are shown with EN low (active).
~TEXAS
INSTRUMENTS
2--60
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS71 025
LOW-DROPOUT VOLTAGE REGULATOR
SLVS162A- MAY 1997-REVISED MAY 1998
Terminal Functions
TERMINAL
NAME
DESCRIPTION
NO.
DorP
PW
EN
2
6
GND
1
1-3
Enable input. Logic low enables output
Ground
IN
3,4
8-10
Input supply voltage
OUT
5,6
13,14
Output voltage
7
15
SENSE
Output voltage sense input
TPS71025Y chip Information
These chips, when properly assembled, display characteristics similar to those of the TPS71025. Thermal
compression or ultrasonic bonding may be used on the doped aluminum bonding pads. The chips may be
mounted with conductive epoxy or a gold-silicon preform.
BONDING PAD ASSIGNMENTS
(5)
(3)
IN
SENSE
TPS71 025
(4)
(2)
OUT
(1)
GND
CHIP THICKNESS: 15 MILS TYPICAL
BONDING PADS: 4 x 4 MILS MINIMUM
TJmax
=150°C
TOLERANCES ARE ± 10%.
ALL DIMENSIONS ARE IN MILS.
1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1
NOTE A. For most applications, OUT and SENSE should
be tied together as close as possible to the device;
for other Implementations, refer to SENSE-pin
connection discussion in the Application
Information section of this data sheet.
~TEXAS
INSTRUMENTS
POST OFFICE SOX 655303 • DALLAS, TEXAS 75265
2-61
TPS71 025
LOW-DROPOUT VOLTAGE REGULATOR
SLVSI62A - MAY 1997 - REVISED MAY 1998
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)t
Input voltage range, VI, EN (see Note 1) ............................................. -0.3 V to 11 V
Continuous output current, 10 ...................................................•............ 2 A
Continuous total power dissipation ............................. See Dissipation Rating Tables 1 and 2
Operating virtual junction temperature range, TJ ..................................... -O°C to 150°C
Storage temperature range, Tstg .................................................. -65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds ............................... 260°C
t Stresses beyond those listed under "absolute maximum ratings· may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions· is not
Implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values are with respect to GND
DISSIPATION RATING TABLE 1 - FREE-AIR TEMPERATURE*
PACKAGE
TAS25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
TA = 125°C
POWER RATING
0
725mW
5.8mWI"C
464mW
145mW
P
1175mW
9.4mW/oC
752mW
235mW
PW
700mW
5.6mWI"C
448mW
140mW
DISSIPATION RATING TABLE 2 - CASE TEMPERATURE*
DERATING FACTOR
ABOVE TC = 25°C
PACKAGE
TCS25°C
POWER RATING
D
2188 mW
17.5mWI"C
1400mW
438mW
P
2738mW
21.9mWI"C
1752mW
548mW
PW
4025mW
32.2mWI"C
2576mW
805mW
TC=70°C
POWER RATING
TC= 125°C
POWER RATING
:I: DiSSipation rating tables and figures are provided for maintenance of junction temperature at or below
absolute maximum temperature of 150°C. For guidelines on maintaining junction lemperature within
recommended operating range, see the Thermallnfonnation seclion.
recommended operating conditions
Input voltage, V,
MIN
MAX
2.97
10
UNIT
V
High-level input voltage at EN, V,H
2
Low-level input voltage at EN, V,L
0
0.5
V
V
Oulput current range, 10
0
500
rnA
Operating virtual junction temperature range, TJ
0
125
°C
~TEXAS
2-62
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS71 025
LOW·DROPOUT VOLTAGE REGULATOR
SLVS162A-MAY1997-REVISED MAY 1998
=
electrical characteristics over recommended operating junction temperature range, VI(IN) 3.5 V,
10 10 mA, EN 0 V, Co 4.7IlF/CSRt 1 n, SENSE shorted to OUT (unless otherwise noted)
=
=
=
=
PARAMETER
Output voltage
TEST CONDITIONs*
3.5 V", Vp; 10 V
10= lOrnA,
Dropout voltage
O'Cto 125'C
VI = 2.45 V
10=100mA,
VI = 2.45 V
10=500 rnA,
VI = 2.45 V
Output regulation
2.45
25'C
57
95
330
25°C
O'Cto 125'C
O'Cto 125'C
0.66
10 = 50 J.LA
10=500 rnA
10 Hz,;;l", 100 kHz,
CSR= 1 Q
7
23
29
18
24
40
39
O'Cto 125'C
36
2
25°C
274
Co =10J.lF
25'C
228
Co =looJ.lF
25°C
159
25'C
292
2.7 V,;; VI ,;; 10 V
Output current limit
VO=O,
VI=10V
Pass-element leakage current in standby
mode
EN=VI,
2.7V,;;VI",10V
O'Cto 125'C
Output voltage temperature coefficient
18
O'C to 125°C
1.07
O'C to 125'C
390
475
2
2
25°C
0.223
0.5
61
75
O'Cto 125°C
1
O°C to 125'C
Thermal shutdown junction temperature
165
2.5 V", VI ",6V
25'C
6V,;;VI",10V
O'Cto 125°C
2.7V",VI,;;10V
Hysteresis voltage, EN
25'C
0.5
O'Cto 125°C
0.5
OV",VI",10V
O'Cto 125°C
-0.5
25°C
Input voltage, minimum lor active pass
element
O'Cto 125°C
A
J.LA
ppml'C
0.5
0.5
2
V
mV
50
-0.5
nA
V
2.7
25°C
J.LA
'C
2
O'Cto 125°C
mV
J.lVrms
1900
25'C
mV
J.lv/,,!Hz
540
25°C
mV
dB
51
Co =4.7J.lF
EN=VI,
Q
53
25'C
Supply current (standby mode)
60
120
43
25'C
EN",0.5V,
38
75
O'Cto 125'C
1=120Hz
0.9
12.7
O'Cto 125'C
25'C
mV
450
1
25'C
10 = 50 J.lA to 500 rnA,
3.5 V,;; VI';; 10 V
V
500
25'C
o rnA ", 10 ", 500 rnA
Input current, EN
7.5
105
25'C
Quiescent current (active mode)
Logic low input voltage (active mode), EN
5.7
O'C to 125'C
10=5 rnA to 500 rnA,
3.5V,;;VI,;;10V
1= 120 Hz,
Logic high input voltage (standby mode), EN
2.55
UNIT
10
25'C
O'Cto 125'C
MAX
2.5
O°Cto 125'C
VI = 3.5 V to 10 V,
50 J.lA,;; 10,;;500 rnA
1= 120 Hz,
Output noise voltage
TYP
O'Cto 125'C
Ripple rejection
Output noise-spectral density
MIN
25'C
Pass-element series resistance
Input regulation
TJ
25'C
2.5
2.5
J.LA
V
t
eSR (compensation senes resistance) relersto the totalsenes reSistance, Including the equivalent senes resistance (ESR) olthe capacitor, any
series resistance added externally, and PWB trace resistance to Co.
:j: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-63
TPS71 025
LOW-DROPOUT VOLTAGE REGULATOR
SLVS162A- MAY 1997 - REVISED MAY 1998
=
=
electrical characteristics at TJ 25°C, VI(IN) 3.5 V, 10
SENSE shorted to OUT (unless otherwise noted)
PARAMETER
Output voltage
=10 mA, EN =0 V, Co =4.7 ~F/CSRt = 1 n,
TEST CONDITIONs*
UNIT
2.5
V
3.5V~VI~10V
10= 10 mA,
Dropout voltage
TPS71025Y
MIN
TYP MAX
5.7
VI = 2.45 V
10= 100mA,
VI =2.45V
57
10 = 500 mA,
VI=2.45V
330
Pass-element series resistance
Input regulation
Output regulation
Ripple rejection
Output noise-spectral density
Output noise voltage
7
18
mV
10 = 50 IJ.A to 500 mA
24
mV
f= 120 Hz,
10 = 50 IJ.A
53
f=120Hz,
10 = 500 mA
51
Co =4.7IlF
274
Co = 10 1lF
228
Co = 100IlF
159
f=120Hz
10Hz~f~100kHz,
CSR= 1 n
EN=OV,
EN=VI,
2.7V~VI~10V
Output current limit
VO=O,
VI=10V
Pass-element leakage current in standby mode
EN=VI,
2.7V~VI~10V
IlVNHz
6V~VI~10V
292
IJ.A
18
nA
1.07
Thermal shutdown junction temperature
V~VI ~6V
OV~VI~10V
Input voltage, minimum for active pass element
t
A
IJ.A
61
ppl'Tll"C
165
·C
2
V
2.7
2.7V~VI~10V
Hysteresis voltage, EN
IlVrms
0.223
Output voltage temperature coefficient
2.5
dB
2
Supply current (standby mode)
Input current, EN
mV
10= 5 mA to 500 mA
o mA ~ 10 ~ 500 mA
Logic low input voltage (active mode), EN
n
0.66
VI = 3.5 Vto 10V
Quiescent current (active mode)
Logic high input voltage (standby mode), EN
mV
0.5
V
50
mV
0
IJ.A
2
V
CSR (compensation senes resistance) refers to the total senes resistance, Including the equivalent senes resistance (ESR) of the capacitor,
any series resistance added extemally, and PWB trace resistance to Co.
:j: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
~TEXAS
INSTRUMENTS
2-64
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS71 025
LOW-DROPOUT VOLTAGE REGULATOR
SLVS162A-MAY1997-REV'SED MAY 1998
TYPICAL CHARACTERISTICS
OUTPUT VOLTAGE
DROPOUT VOLTAGE
vs
FREE-AIR TEMPERATURE
FREE-AIR TEMPERATURE
vs
2.55
0.4
.'.
VI=3.5V
0.35
2.53
,
>
CD
Cl
!
~
:;
......--
10 =500 mA
0.3
2.52
I
2.5
0
,
2.49
~
2.48
2.47
0.25
Cl
:;
0
~
0.2
0.15
Q
r-o
•
S
;e
-
10=10mA
0.1
10=500mA
-
2.46
2.45
25
50
75
100
TA - Free-Air Temperature - °C
10=100mA
0.05
o
125
10='10mA
o
50
75
100
TA - Free-Air Temperature - °C
25
Figure 2
OUTPUT VOLTAGE
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
INPUT VOLTAGE
vs
2.55
2.54
2.53
,
2.52
J
2.51
•
~
T~=koJ
10=5mA
2.54
125
Figure 3
2.55
>
---
>
2.51
12.
:;
k
VI= 2.45 V
2.54
,
10=500mA
2.53
>
I
CD
Cl
!
~
:;
2.5
0
i,
2.49
0
~
2.48
~
8::J
I
2.52
2.51
2.5
2.49
2.48
2.47
2.47
2.46
2.46
2.45
0
50
75
100
TA - Free-Air Temperatura - °C
25
125
r-
l.- t--
2.45
3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10
VI -Input Voltage - V
FigureS
Figure 4
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-65
TPS71 025
LOW-DROPOUT VOLTAGE REGULATOR
SLVSl62A- MAY 1997 -REVISED MAY 1998
TYPICAL CHARACTERISTICS
TYPICAL REGIONS OF STABILITY
OUTPUT VOLTAGE
COMPENSATION SERIES RESISTANCE
va
vs
OUTPUT CURRENT
OUTPUT CURRENT
2.55
2.54
2.53
>
I
2.52
GI
I
2.51
~
i
2.5
0
2.49
I
J'
~~
VI= 10V
-~
VI=3.5V
2.48
:::::::-....
-r-::::
2.47
2.46
2.45
o
100
200
300
400
10 - Output Current - mA
500
50 100 150 200 .250 300 350 400 450 500
10 - Output Current - mA
Figure 7
Figure 6
TYPICAL REGIONS OF STABILITY
TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE
COMPENSATION SERIES RESISTANCE
va
vs
OUTPUT CURRENT
ADDED CERAMIC CAPACITANCE
100
Cl
Cl
I
I
VI=3.5V
No Input Cepacitence
10= 100 mA
Co 4.7 I1F
3c
II
1
Ill:
=
=25°C
10
Sl
~c
i
0
1
Q,
E
0
0
I
I
Ill:
Ul
~
0
0.1
50 100 150 200 250 300 350 400 450 500
o
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
Added Ceramic Capacitance - I1F
10 - Output Current - mA
Figure 9
FigureS
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • OALLAS, TEXAS 75265
1
TPS71 025
LOW-DROPOUT VOLTAGE REGULATOR
SLVS162A - MAY 1997 - REVISED MAY 1998
TYPICAL CHARACTERISTICS
TYPICAL REGIONS OF STABILITY
TYPICAL REGIONS OF STABILITyt
COMPENSATION SERIES RESISTANCE
vs
ADDED CERAMIC CAPACITANCE
COMPENSATION SERIES RESISTANCE
vs
OUTPUT CURRENT
c:
=3.5 V
No Input Capacitance
Co = 10 I1F
No Ceramic Capacitance
TA=25°C
c:
I
I
Ij
fJ
c
I'"
10
011
·c
c7l
5
c
I~
i
~
II:
UI
'"
C
011
a.
E
8
I
II:
I
0
0.1
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
0.1
0
so
100 150 200 250 300 350 400 450 SOD
Added Ceramic Capacitance - I1F
10 - Output Current - mA
Figure 10
c:
I
I
Figure 11
TYPICAL REGIONS OF STABILIm
TYPICAL REGIONS OF STABILITYt
COMPENSATION SERIES RESISTANCE
vs
OUTPUT CURRENT
COMPENSATION SERIES RESISTANCE
vs
ADDED CERAMIC CAPACITANCE
100 ....,.,.....,,....,,...,.,..-----VI=3.5V
No Input Capacitance
Co = 10 I1F + 0.511F of
Added Ceramic Capacitance
TA=25°C
::
·c
c7l
5
J
I
~
0.1
L-....L.._I...-....L..---lI...-....L..-..l._....L.....--I._..L---I
o
50 100 150 200 250 300 350 400 450 SOO
0.1
L-....L.._I...-....L..---l_....L..-..l._....L.....--I._..L---I
o
10 - Output Current - mA
0.1
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
Figure 12
t CSR values below 0.1
1
Added Ceramic Capacitance - I1F
Figure 13
g are not recommended.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-67
TPS71 025
LOW-DROPOUT VOLTAGE REGULATOR
SLVS162A- MAY 1997 - REVISED MAY 1998
TYPICAL CHARACTERISTICS
TYPICAL REGIONS OF STABILlTYt
COMPENSATION SERIES RESISTANCE
vs
ADDED CERAMIC CAPACITANCE
100 VI = 3.5 V
No Input Capacitance
Co 10 1LF
10 = 500 mA
TA 25°C
=
=
0.1
L..-...J---L_..I.--l.._L..--....L---L_..I.--l..---I
o
0.1
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
Added Ceramic Capacitance - ILF
t CSR values below 0.1 0 are not recommended.
Figure 14
VI
To Load
IN
~
OUT
+
Co
Ccer
(see Note A)
RL
CSR
NOTE A. Ceramic capacitor
Figure 15. Test Circuit for Typical Regions of Stability (Figures 7 through 14)
~TEXAS
2-68
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS71 025
LOW-DROPOUT VOLTAGE REGULATOR
SLVS162A-MAY1997-REVISED MAY 1998
THERMAL INFORMATION
In response to system-miniaturization trends, integrated circuits are being offered in low-profile and fine-pitch
surface-mount packages. Implementation of many of today's high-performance devices in these packages
requires special attention to power dissipation. Many system-dependent issues such as thermal coupling,
airflow, added heat sinks and convection surfaces, and the presence of other heat-generating components
affect the power-dissipation limits of a given component.
Three basic approaches for enhancing thermal performance are illustrated in this discussion:
•
•
•
Improving the power-dissipation capability of the PWB design
Improving the thermal coupling of the component to the PWB
Introducing airflOW in the system
Figure 16 is an example of a thermally enhanced PWB layout for the 20-lead TSSOP package. This layout
involves adding copper on the PWB to conduct heat away from the device. The RaJA for this component/board
system is illustrated in Figure 17. The family of curves illustrates the effect of increasing the size of the
copper-heat-sink surface area. The PWB is a standard FR4 board (L x W x H = 3.2 inch x 3.2 inch x 0.062 inch):
the board traces and heat sink area are 1-oz (per square foot) copper.
-----------------~
I
I
I
I
I
I
I
I
I
I
I
I
I
L __ ,
1 ___ -..1
L ________ -1
Figure 16. Thermally Enhanced PWB Layout (Not to Scale) for the 20-Pin TSSOP
Figure 18 shows the thermal resistance for the same system with the addition of a thermally conductive
compound between the body of the TSSOP package and the PWB copper routed directly beneath the device.
The thermal conductivity for the compound used in this analysis is 0.815 W/m x °e.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-69
TPS71 025
LOW-DROPOUT VOLTAGE REGULATOR
,
SLVSl62A-MAY1997-REVISED MAY 1998
THERMAL INFORMATION
THERMAL RESISTANCE, JUNCTION-To-AMBIENT
THERMAL RESISTANCE, JUNCTION-To-AMBIENT
vs
vs
AIRFLOW
190r---~----~--~--~----~--~
Component/Board System
2O-Lead TSSOP
AIRFLOW
~ 190 ,...--.....--.....---.--........- . . . , - - - ,
I
'S
I
0.15
0.1 '--1---+--+--101'"'-+--+-:""""'''-'-+--+--1
0.05 .--I----j_-izlIIi"'F--+--I---+--+--+--I
0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5
10 - Output Current - A
Figure 1. Dropout Voltage Versus Output Current
Power good (PG) reports low output voltage and can be used to implement a power-on reset or a low-battery
indicator.
The TPS71 Hxx is offered in 3.3-V, 4.85-V, and 5-V fixed-voltage versions and in an adjustable version
(programmable over the range of 1.2 V to 9.75 V). Output voltage tolerance is specified as a maximum of 2%
over line, load, and temperature ranges (3% for adjustable version). The TPS71 Hxx family is available in a
TSSOP (20-pin) thermally enhanced. surface-mount power package. The package has an innovative thermal
pad that, when soldered to the printed-wiring board (PWB), enables the device to dissipate several watts of
power (see Thermal Information section). Maximum height of the package is 1.2 mm.
AVAILABLE OPTIONS
OUTPUT VOLTAGE
TSSOP
(PWP)
(V)
TJ
-55·C to 150·C
MIN
TYP
4.9
5
5.1
TPS71 H50QPWPLE
4.75
4.85
4.95
TPS71 H48QPWPLE
3.23
3.3
3.37
TPS71 H33QPWPLE
MAX
Adjustablet
TPS71 H01QPWPLE
1.2 Vlo 9.75 V
t The PWP package is only available left-end taped and reeled, as indicated
by the LE suffix on the device type. The TPS71 HOl Q Is programmable using
an external resistor divider (see application information).
~TEXAS
2-76
INSTRUMENTS
POST OFFICE BOX 855303 • DALLAS, TEXAS 75285
TPS71H01Q,TPS71H33Q,TPS71H48Q,TPS71H50Q
LOW-DROPOUT VOLTAGE REGULATORS
SLVS152A - NOVEMBER 1996 - REVISED JANUARY 1997
TPS71 Hxxt
VI
8
-+--+---1 IN
9
10
0.11lF
6
PG
IN
SENSE
IN
OUT
EN
OUT
20
PG
15
Vo
---,I
CO:l:
+ 10llF
GND
I
I
CSR
_ _ _ .JI
t TPS71 H33. TPS71 H4B. TPS71 HOO (fixed-voltage options)
:I: Capacitor selection is nontrivial. See application inlormation section
for details.
Figure 2. Typical Application Configuration
functional block diagram
IN -----+--.------~.-+_+---------,
RESISTOR DIVIDER OPTIONS
EN --------.....~~
r - - - t - - - PG
DEVICE
TPS71H01
TPS71H33
TPS71H4B
TPS71H50
R1
0
420
726
756
R2
UNIT
co
n
233
233
233
kO
kO
kO
NOTE A. Resistors are nominal values only.
t---+--
OUT
R1
COMPONENT COUNT
MOS tranSistors
464
Bilpolar transistors
41
Diodes
4
CapaCitors
17
Resistors
76
R2
GND
t Switch positions are shown with EN low (active).
:I: For most applications. SENSE should be externally connected to OUT as close as possible to the device. (For other implementations. refer
to SENSE-pin connection discussion in Applications Information section.)
~1ExAs
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-n
TPS71H01Q,TPS71H33Q,TPS71H48Q,TPS71HSOQ
LOW-DROPOUT VOLTAGE REGULATORS
SLVSl52A - NOVEMBER 1996 - REVISED JANUARY 1997
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)t
Input voltage range:!:, VI, PG, SENSE, EN ............................................ -0.3 V to 11 V
Output current, 10 ........................................................................... 2 A
Continuous total power dissipation ............................. See Dissipation Rating Tables 1 and 2
Operating virtual junction temperature range, TJ .................................... -55°C to 150°C
Storage temperature range, Tstg .................................................. -65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds ............................... 260°C
t Stresses beyond those listed under "absolute maximum ratings' may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those Indicated under "recommended operating conditions' Is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect davice reliability.
:!: All voltage values are with respect to network terminal ground.
DISSIPATION RATING TABLE 1 - FREE-AIR TEMPERATURE (see Figure 3)§
PACKAGE
TA,s; 25°C
POWER RATING
DERATING FACTOR
ABOVE TA 25°C
TA = 70°C
POWER RATING
TA = 125°C
POWER RATING
pwpl1
700mW
5.6mWI"C
448mW
140mW
=
DISSIPATION RATING TABLE 2 - CASE TEMPERATURE (see Figure 4)§
PACKAGE
TC,s;62.5°C
POWER RATING
DERATING FACTOR
ABOVE TC 62.5°C
=
TC=70°C
POWER RATING
TC = 125°C
POWER RATING
pwpl1
22.9W
7.1W
25W
285.7mWI"C
§ Dissipation rating tables and figures are provided for maintenance of junction temperature at or below
absolute maximum temperature of 150°C. For guidelines on maintaining junction temperature within
recommended operating range, see the Thermal Information section.
.
11 Refer to Thermal Information section for detailed power dissipation considerations when using the
TSSOP packages.
~lExAs
2-78
INSTRUMENTS
POST OFFICE sox 655303 • DALLAS, TEXAS 75265
TPS71H01Q,TPS71H33Q,TPS71H48Q,TPS71H50Q
LOW·DROPOUT VOLTAGE REGULATORS
SLVS152A - NOVEMBER 1996 - REVISED JANUARY 1997
DISSIPATION DERATING CURVEt
vs
FREE-AIR TEMPERATURE
1400
~I
c
1200
0
:;
f
II)
:I
g
1000
800
r-....
C
:e
8
800
............
E
:I
E
400
'=
200
::Ii!
I
PWPPackage
~=178.C/W
~ .........
............
C
II..
o
25
50
75
~
125
100
TA - Free-Air Temperature -
150
·c
Figure 3
MAXIMUM CONTINUOUS DISSIPATIONt
vs
CASE TEMPERATURE
30
~
I
c
25
1
20
0
.!I
c
'\
II)
' "PWP Package
:I
0
:I
c
~
15
\.
0
tJ
E
10
p~
:I
j
I
Measured with ths exposed thermal
coupled to an Infinite heat sink with a
thsrmally conductive compound (the
tharmal conductivity of the compound
Is 0.815 W/m· °C). The ReJC Is 3.SoelW.
5
C
II..
o
25
50
75
100
,
125
TC - case Temperature - ·C
Figure 4
'"
150
t Dissipation rating tables and figures are provided for maintenance of junction temperature at or below absolute maximum temperature of 150·C.
For guidelines on maintaining junction temperature within recommended operating range, see the Thermal Information section.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-79
TPS71H01Q,TPS71H33Q,TPS71H48Q,TPS71H50Q
LOW-DROPOUT VOLTAGE REGULATORS
SLVS152A - NOVEMBER 1996 - REVISED JANUARY 1997
recommended operating conditions
,
Input voltage, Vlt
MIN
MAX
TPS71 H01Q
2.5
10
TPS71H33Q
3.n
10
TPS71H48Q
5.2
10
TPS71H5OQ
5.33
10
High-level input voltage at EN, VIH
2
V
V
0.5
V
0
500
mA
-40
125
°C
Low-level Input voltage at EN, VIL
Output current range, 10
Operating virtual junction temperature range, TJ
UNIT
t Minimum Input voltage defined In the recommended operating conditions Is the maximum specified output voltage plus dropout voltage at the
maximum specified load range. Since dropout voHage Is a function of output current, the usable range can be extended for lighter loads. To
calculate the minimum Input voltage for your maximum output current, use the following equation: VI(mln) = VO(max) + VOO(max load)
Because the TPS71 H01 Is programmable, rOS(on) should be used to calculate VOO before applying the above equation. The equation for
calculating Voo from rOS(on) is given in Note 2 in the electrical characteristics table. The minimum value of 2.5 V is the absolute lower limit for
the recommended Input voltage range for the TPS71 H01.
=
=
=
=
electrical characteristics at 10 10 mA, §ij 0 V, Co 4.7 ~F/CSR* 1 Q, SENSE/FB shorted to OUT
(unless otherwise noted)
PARAMETER
TEST CONDmONS§
TJ
TPS71H01Q,TPS71H33Q
TPS71H48Q,TPS71H50Q
MIN
Ground current (active mode)
EN S 0.5 V,
VI=VO+ 1 V,
OmAs los500mA
Input current (standby mode)
EN=VI,
2.7VSVls10V
Output current limit
VO=O,
VI= 10V
Pass-element leakage current in standby
EN=VI,
mode
2.7 V SVI S 10V
Normal operation,
PG leakage current
VPG= 10V
Output voltage temperature coefficient
25°C
EN logic low (active mode)
25°C
0.5
2
1.2
25°C
-40°C to 125°C
2
2
0.5
25°C
-4QOC to 125°C
1
0.02
25°C
0.5
0.5
-40°C to 125°C
61
-40°C to 125°C
2.5 VSVI S6V
40°C to 125°C
6VSVI S 10V
2.7VSVIS10V
OVSVI S 10V
IpG=300j1A
25°C
0.5
0.5
50
-0.5
0.5
-4QOC to 125°C
-0.5
0.5
25°C
A
j1A
j1A
2.05
2.5
2.5
1.06
V
mV
25°C
-4ooC to 125°C
j1A
V
2.7
-40°C to 125°C
IpG = 300 j1A
j1A
°C
2
-4QOC to 125°C
25°C
UNIT
75 ppm/"C
165
Minimum VI for active pass element
Minimum VI for valid PG
350
-40°C to 125°C
25°C
,
285
460
EN hysteresis voltage
EN input current
MAX
-40°C to 125°C
Thermal shutdown junction temperature
EN logic high (standby mode)
TYP
1.5
1.9
j1A
V
V
:I: CSR (compensation series resistance) refers to the total series resistance, including the eqUivalent series resistance (ESR) of the capacHor, any
series resistance added externally, and PWB trace resistance to Co.
§ Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken Into account separately.
:111ExAs
INSTRUMENTS
2-aQ
POST OFACE sox tl55303 • DALLAS, TEXAS 75265
TPS71H01Q,TPS71H33Q,TPS71H48Q,TPS71H50Q
LOW-DROPOUT VOLTAGE REGULATORS
SLVSl52A - NOVEMBER 1996 - REVISED JANUARY 1997
=
=
TPS71H01 electrical characteristics at 10 10 mA, VI 3.5 V, EN
shorted to OUT at device leads (unless otherwise noted)
PARAMETER
Reference voltage (measured at
FB with OUT connected to FB)
TEST CONDITIONIN:
VI = 3.5 V,
IO=10mA
2.5VSVp.l0V,
See Note 1
5mAs 10 s 500 mA,
Reference voltage temperature
coefficient
50 J.LA S 10 S 150 mA
VI =2.4V,
VI=2.4V,
150mASIOS500mA
Pass-element series resistance
(see Note 2)
Input regulation
1.178
25°C
-40°C to 125°C
1.143
1.213
-40°C to 125°C
61
75
25°C
0.7
1
0.83
1.3
0.52
0.85
-40°C to 125°C
-40°C to 125°C
1.3
25°C
50 J.LA S 10 S 500 mA
25°C
0.32
VI =5.9 V,
50 J.LA S 10 S 500 mA
25°C
0.23
VI =2.5 Vto 10V,
See Note 1
50 J.LA S 10 S 500 mA,
25°C
18
-40°C to 125°C
25
10 = 5 mA to 500 mA,
See Note 1
2.5 V SVI S 10V,
10 = 50 J.LA to 500 mA,
See Note 1
2.5VSVIS10V,
f=120Hz
-40°C to 125°C
10 Hz S f S 100 kHz,
CSRt= 1 a
25°C
14
25
25°C
22
to 125°C
54
25°C
48
-40°C to 125°C
44
25°C
45
-40°C to 125°C
44
2
25°C
95
CO= lO I1F
25°C
89
Co=l00I1F
25°C
74
VFB voltage decreasing from above VPG
Measured at VFB
PG output low voltage§
IPG = 400 J.LA,
VI=2.13V
FB input current
-40°C to 125°C
1.101
12
25°C
0.1
-40°C to 125°C
-10
-20
mV
I1Vrms
0.1
V
mV
0.4
0.4
25°C
mV
I1V/VHz
1.145
25°C
-40°C to 125°C
mV
dB
54
Co = 4.711F
PG hysteresiS voltage§
a
59
25°C
PG trip-threshold voltage§
ppml"C
0.85
-40°C to 125°C
f= 120 Hz
V
1
25°C
-40°C
UNIT
V
VI =3.9 V,
10= 500 mA,
See Note 1
Output noise voltage
TPS71 H01Q
MIN
TYP MAX
50 J.LA S 10 S 500 mA
10 = 50 J.LA
Output nOise-spectral density
TJ
VI=2.9V,
Output regulation
Ripple rejection
=0 V, Co =4.7IJ.F/CSRt =1 n, FB
10
20
V
nA
t CSR refers to the total series reSistance, including the ESR of the capaCitor, any series resistance added extemally, and PWB trace resistance
to CO.
:j: Pulse-testing techniques are used to maintain virtual junction tempereture as close as possible to ambient tempereture; thermal effects must
be taken Into account separately.
§ Output voltage programmed to 2.5 V with closed-loop configuration (see application information).
NOTES: 1. When VI < 2.9 V and 10 > 150 mA simultaneously, pass element roS(on) increases (see Figure 27) to a point such that the resutting
dropout voltage prevents the regulator from maintaining the specified tolerance range.
2. To calculate dropout voltage, use equation:
Voo = 10' rOS(on)
rDS(on) is a function of both output current and input voltage. The parametric table lists rDS(on) for VI = 2.4 V, 2.9 V, 3.9 V, and
5.9 V, which corresponds to dropout conditions for programmed output voltages of 2.5 V, 3 V, 4 V. and 6 V, respectively. (For other
programmed values, see Figure 26.)
~TEXAS
INSTRUMENTS
POST OFFICE SOX 655303 • DALLAS, TEXAS 75285
2-81
TPS71H01Q,TPS71H33Q,TPS71H48Q,TPS71H50Q
LOW-DROPOUT VOLTAGE REGULATORS
SLVS152A - NOVEMBER 1996 - REVISED JANUARY 1997
=
=
=
=
=
TPS71 H33 electrical characteristics at 10 10 mA, VI 4.3 V, EN 0 V, Co 4.7 J.1F/CSRt 1 0, SENSE
shorted to OUT (unless otherwise noted)
PARAMETER
Output voltage
TEST CONDITIONS*
VI = 4.3 V,
10=10mA
4.3 V $VP; 10 V,
5 mA$IO $500 mA
10=10mA,
VI = 3.23 V
10= 100mA,
VI =3.23V
10 = 500 mA,
VI=3.23V
Pass-element series
resistance
(3.23 V - VOl/IO,
10= 500 mA
VI = 3.23 V,
Input regulation
VI = 4.3 Vto 10 V,
50 ItA $10 $ SOO mA
10 = 5 mA to 500 mA,
4.3V$VI $10V
10 = 50 ItA to 500 mA,
4.3V$VI$10V
Dropout voltage
Output regulation
10 = 50 ItA
Ripple rejection
f=120Hz
10= SOO mA
Output noise-spectral density
Output noise vo~age
PG trip-threshold voltage
TJ
25°C
3.37
4.5
7
47
60
-40°C to 125°C
80
235
25°C
0.47
25°C
0.6
0.8
25°C
20
-40°C to 125°C
27
21
25°C
-40°C to 125°C
38
75
30
25°C
60
120
-40°C to 125°C
25°C
43
-40°C to 125°C
40
25°C
39
-40°C to 125°C
36
Q
mV
mV
mV
54
dB
49
2
25°C
274
CO= 1O I1F
25°C
228
CO= 1OO I1 F
25°C
159
2.868
I1W.JHz
I1Vrms
3
25°C
35
25°C
0.22
-40°C to 125°C
mV
300
-40°C to 125°C
CO=4.7I1F
VI =2.8V
V
400
-40°C to 125°C
-40°C to 125°C
UNIT
8
25°C
25°C
Vo voltage decreasing from above VPG
IpG= 1 mA,
3.3
3.23
-40°C to 125°C
PG hysteresis voltage
PG output low voltage
TPS71H33Q
TYP
MAX
25°C
-40°C to 125°C
f=120Hz
10Hz$f$100kHz,
CSRt=1Q
MIN
V
mV
0.4
0.4
V
t CSR refers to the total series resistance, including the ESR of the capacitor, any series resistance added extemally, and PWB trace resistance
to CO.
:J: Pulse-testing techniques are used to maintain Virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
~TEXAS
INSTRUMENTS
2-82
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS71H01Q,TPS71H33Q,TPS71H48Q,TPS71H50Q
LOW-DROPOUT VOLTAGE REGULATORS
SLVSl52A - NOVEMBER 1996 - REVISED JANUARY 1997
=
TPS71H48 electrical characteristics at 10 10 rnA, VI
SENSE shorted to OUT (unless otherwise noted)
PARAMETER
=5.85 V, EN =0 V, Co =4.7 ~F/CSRt = 10,
TEST CONDITIONS*
VI = 5.B5 V,
10= 10mA
5.85 VS VI S 10 V,
5 mAs 10 S 500 mA
10= 10mA,
VI = 4.75 V
10=100mA,
VI=4.75V
10=500mA,
VI=4.75V
Pass-element series
resistance
(4.75 V - VOl/IO,
10=500mA
VI = 4.75 V,
Input regulation
VI = 5.85 Vto 10 V,
50llAS 10 S500 mA
10= 5 mA to 500 mA,
5.85VSVIS10V
10 = 50 I1A to 500 mA,
5.85 V S VI S 10 V
Output voltage
Dropout voltage
10 = 50 I1A
f=120Hz
10=500 mA
Output noise-spectral density
Output noise voltage
PG trip-threshold voltage
IPG= 1.2 mA,
4.95
2.9
25°C
25°C
30
150
25°C
-40°C to 125°C
37
25°C
180
0.32
0.35
0.52
25°C
27
-40°C to 125°C
37
12
25°C
-40°C to 125°C
42
80
42
25°C
60
130
-40°C to 125°C
25°C
42
-40°C to 125°C
39
25°C
39
-40°C to 125°C
35
Q
mV
mV
mV
53
dB
50
2
25°C
410
CO= lO IlF
25°C
328
CO= lOO IlF
25°C
212
4.5
IlV/"*iZ
IlVrms
4.7
25°C
50
25°C
0.2
-40°C to 125°C
mV
250
CO=4.7IlF
VI=4.12V
V
6
54
-40°C to 125°C
-40°C to 125°C
UNIT
8
25°C
Vo voltage decreasing from above VPG
MAX
4.85
4.75
-40°C to 125°C
PG hysteresis voltage
PG output low voltage
TPS71H4BQ
TYP
25°C
-40°C to 125°C
f= 120 Hz
10HzSfSl00kHz,
CSRt=l Q
MIN
-40°C to 125°C
Output regulation
Ripple rejection
TJ
V
mV
0.4
0.4
V
t CSR refers to the total senes resistance, including the ESR of the capacitor, any senes resistance added extemally, and PWB trace resistance
to CO.
=1= Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2--83
TPS71H01Q,TPS71H33Q,TPS71H48Q,TPS71HSOQ
LOW-DROPOUT VOLTAGE REGULATORS
SLVS152A - NOVEMBER 1996 - REVISED JANUARY 1997
=
=
=
=
=
TPS71 H50 electrical characteristics at 10 10 mA, VI 6 V, EN 0 V, Co 4.7 J.lF/CSRt 1 n,SENSE
shorted to OUT (unless otherwise noted)
PARAMETER
Output voltage
TEST CONDmoNS*
VI=6V,
10= 10 mA
6VSVI S 10V,
5mAs 10 S 500 mA
IO=10mA,
VI = 4.66 V
10= 100mA,
VI = 4.88 V
IO=500mA,
VI=4.88V
Pass-element series
resistance
(4.88 V - Vo)llo,
10=500mA
VI =4.88 V.
Input regulation
VI=6Vt010V,
50 IJ.A s 10 S 500 mA
10 = 5 mA to 500 mA,
6VSVI S10V
10 = 50 IJ.A to 500 mA,
6VSVIS10V
Dropout voltage
10 = 50 IJ.A
f= 120Hz
10 = 500 mA
Output nolse-spectral density
Output noise voltage
PG trip-threshold voltage
25°C
-40°C to 125°C
IpG= 1.2mA,
5.1
2.9
6
27
32
-4QOC to 125°C
47
146
25°C
-40°C to 125°C
0.29
0.32
0.47
25°C
25
32
25°C
30
_40°C to 125°C
45
25°C
-40°C to 125°C
65
140
25"d
45
-4QOC to 125°C
40
25°C
42
-400C to 125°C
36
0
mV
mV
mV
55
dB
52
2
25°C
430
Co= 1O IlF
25°C
345
CO= 100llF
25°C
220
4.55
IIvrIHZ
IIVrms
4.75
25°C
53
25°C
0.2
-40°C to 125°C
45
86
Co = 4.7 IIF
VI=4.25V
mV
170
-40°C to 125°C
to 125°C
V
230
25°C
-4O~C
UNIT
8
25°C
25°C
Vo voltage decreasing from above VPG
MAX
5
4.9
25°C
PG hysteresis voltage
PG output low voltage
TYP
-40°C to 125°C
f=120Hz
10HzSfS100kHz,
CSRt=10
TPS71H50Q
MIN
-40°C to 125°C
Output regulation
Ripple rejection
TJ
V
mV
0.4
0.4
V
t CSR refers to the total series resistance, including the ESR of the cepacitor, any series resistance added externally, and PWB trace reSistance
to CO.
Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
*
~TEXAS
INSTRUMENTS
2-84
POST OFFICE BOX 655303 • DALlAS. TEXAS 75285
TPS71H01Q,TPS71H33Q,TPS71H48Q,TPS71H50Q
LOW-DROPOUT VOLTAGE REGULATORS
SLVS152A - NOVEMBER 1996 - REVISED JANUARY 1997
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
vs Output current
vs Input voltege
IQ
Quiescent current
Voo
Typical dropout voltage
vs Output current
,WOO
Change in dropout voltage
vs Free-air temperature
INO
Change in output voltege
vs Free-air temperature
Vo
Output voltege
vs Input voltege
!!NO
Change in output voltege
vs Input voltege
Vo
Output voltege
vs Output current
Ripple rejection
vs Frequency
Output spectral noise density
vs Frequency
vs Free-air temperature
rOS(on)
R
Pass-element resistance
vs Input voltage
Divider resistence
vs Free-air temperature
I'(SENSE)
SENSE current
vs Free-air temperature
FB leakage current
V,
"(EN)
vs Free-air temperature
I Minimum input voltege for active-pass element
vs Free-air temperature
I Minimum input voltege for valid PG
vs Free-air temperature
Input current (EN)
vs Free-air temperature
Output voltage response from Enable (EN)
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
VPG
Power-good (PG) voltege
vs Output voltage
CSR
Compensation serias resistence
vs Output current
CSR
Compensation series resistence
vs Ceramic capacitance
CSR
Compensation series resistence
vs Output current
CSR
Compensation series resistence
vs Ceramic capacitance
33
34
35
36
37
38
39
40
41
~TEXAS
INSTRUMENTS
POST OFFICE eox 655303 • DALLAS, TEXAS 75265
2-85
TPS71H01Q,TPS71H33Q,TPS71H48Q,TPS71H50Q
LOW-DROPOUT VOLTAGE REGULATORS
SLVS152A - NOVJ;:MBER 1996 - REVISED JANUARY 1997
TYPICAL CHARACTERISTICS
355
I
QUIESCENT CURRENT
QUIESCENT CURRENT
vs
OUTPUT CURRENT
INPUT VOLTAGE
.vs
-
_I
TA=25°C
345
335
C
~~
I
1:
325
:I
(,)
315
~
..
1:
III
1!:I
CI
r--r
250
i'Y VA ~k' ITp~71H48
1:
200
~ &f" 1 1
·1
CI
150
1:
§
TPS71H50
(,)
305
295
TPS71 H50, VI = 6 V
i
I
J
/ ,D
I
I
9
285
100
TPS71 H48, VI = 5.85 V
275
265
I
I
I
I
"
r' TPS71H01 With Vo
Programmed to 2.5 V
r--
50
TPS71 H33, VI = 4.3 V
o
~~~~/
I
TPS71 H33
I
I
9
300
..,. .....-:
TA = 25°C
RL=100
350
c::L
TPS71 Hxx, VI = 10 V
::L
400
o
o
50 100 150 200 250 300 350 400 450 500
V
2
10 - Output Current - mA
3
4
5
6
7
8
9
10
VI-Input Voltage - V
Figure 6
Figure 5
TPS71H48Q
400
QUIESCENT CURRENT
DROPOUT VOLTAGE
vs
FREE-AIR TEMPERATURE
OUTPUT CURRENT
.1
0.3 ....--.----,-...,----,..-,..--.----,-...,----,..--,
I
VI = VO(nom) + 1 V
10 = 10 mA
C
350
::L
I
1:
~
300
:I
(,)
1:
CD
.~:I
250
CI
I
9
200
150
-50
/
vs
V
V
V
V
V
V
0.25 t--+-t-+--+-t--+-t-+--+-7I
>
I
t
~
I
0.2 1---+---1-+--+-+---+---1---,*""-+----1
0.15
0.1 1---+-t-+--7t'<--t-----bil"""':l~+---t--j
0.05
-25
0
25
50
75
100
TA - Free-Air Temperature - °C
1---+-t-+--+-t--7f-
1----t---7I"--~..-r-I----t---t--t----t---;
125
50 100 150 200 250 300 350 400 450 500
~TEXAS
2-86
10 - Output Current - mA
Figure 8
Figure 7
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS, TEXAS 75265
TPS71H01Q,TPS71H33Q,TPS71H48Q,TPS71H50Q
LOW-DROPOUT VOLTAGE REGULATORS
SLVS152A- NOVEMBER 1996 - REVISED JANUARY 1997
TYPICAL CHARACTERISTICS
CHANGE IN DROPOUT VOLTAGE
vs
FREE-AIR TEMPERATURE
10
>
E
/
6
III
CI
4
~
'5
2
~
8.
E!
Q
.5
III
CI
c
III
.c
0
>
I
V
0
-2
-4
-6
/
-8
-10
-50
V
/
V
L
/
j
10
~
'5
5
0
0
t
V, = VO(nom) + 1 V
10 = 10 mA
/'
./
III
CI
c
III
.c
0
I
~
25
50
75
100
0
TA - Free-Air Temperature - 'C
-5
/
-15
-25
25
50
75
100
0
TA - Free-Air Temperature - 'C
Figure 9
6
TA=25'C
RL=100
>
I
II
CD
,J
CI
~
~
'5
t
0
I
3
CHANGE IN OUTPUT VOLTAGE
vs
INPUT VOLTAGE
20
IrT~S71~50
I
10
III
III
J
Programmed to 2.5 V
O
-5
TPS71H50
TPS71H48
1
o
/ TPS7~01 Wlth V~
~
r
1».
5
TPS71H33
2
TA=25'C
RL= 100
15
I
l\ipS7~H48
II
4
125
Figure 10
OUTPUT VOLTAGE
vs
INPUT VOLTAGE
5
/
,,/
-10
-20
-50
125
V
~
/'
.5
I
TA = 25°C
3.33
2.51
3.32
>
I
I
CD
J
~
~
i
1 2.505
3.31
.~
~
:;
2.5
g
"'-::::
I 2.495
-?
_
~
vl=3.5V
~
0
-?
2.49
2.485
2.48
VI=4.3V
3.29
I
VI=10V
____VI=10V
3.3
3.28
3.27
o
100
300
200
400
3.26
500
o
100
10 - Output Currant - mA
200
Figure 13
OUTPUT VOLTAGE
vs
vs
OUTPUT CURRENT
OUTPUT CURRENT
5.06
_I
I
&
.!
~
5.04
I
I
-?
4.89
4.87 ~
4.85
>
5.03
J
5.02
I
4.88
4.88
""""""'- ...
~
VI = 5.85 V
~
5
f
4.99
I
4.98
-?
4.83
5.01
:;
0
VI= 10V
4.84
4.96
4.81
4.95
o
4.94
100
200
300
400
~
"-=
500
o
--~
VI=10V
100
200
300
10 - Output Current - mA
10 - Output Current - mA
Figure 15
2-88
VI=6V
4.97
4.82
4.8
I
5.05 I- TA=25°C
TA = 25°C
4.9
>
500
TPS71H50Q
TPS71H48Q
4.91
400
Figure 14
OUTPUT VOLTAGE
4.92
300
10 - Output Current - mA
Figure 16
:lllEXAS
INSTRUMENTS
POST OFRCE BOX 655303 • DALLAS, TEXAS 75265
400
500
TPS71H01Q,TPS71H33Q,TPS71H48Q,TPS71H50Q
LOW-DROPOUT VOLTAGE REGULATORS
SLVS152A - NOVEMBER 1996 - REVISED JANUARY 1997
TYPICAL CHARACTERISTICS
III
'0
I
a
i
TPS71 H01Q
TPS71H33Q
RIPPLE REJECTION
vs
FREQUENCY
RIPPLE REJECTION
vs
FREQUENCY
70
70
60
60
~
50
RL= 100110 ~
c
40
i
II
ta.
a:
30
20
l
Ia.
RL=5000
TA = 25°C
VI = 3.5 V
CO=4.7~F(CSR=1
10
100
1K
10K
I'
30
RL = 500 0
IIIIIIJJ.
20
RL'='100
TA = 25°C
VI=3.5V
10
1 OJ
No Input capacitance
CO=4.7~F(CSR=
0
1IIIIIIIIIIIW"R~~I~~I~
o
40
a:
on
No Input Capacitance
Vo Programmed to 2.5 V
10
~W~I~11J~~~~
50
III
'0
I
'ij'
a:
WI+Ul111
~
100K
1M
-10 111111111 111111111 JlllJJllLl
10 k
10
100
1k
10M
f - Frequency - Hz
TPS71H48Q
TPS71H50Q
RIPPLE REJECTION
vs
FREQUENCY
RIPPLE REJECTION
vs
FREQUENCY
70
I-
R
c
t
I
ia:
60
II
50
RL= 100
III
'0
~
C
0
i
,
a:
RL=5OO0
t
20
0
-10
10
~
TA = 25°C
VI=3.5V
Co = 4.7~F(CSR = 1 OJ
No Input capacitance
1111.
100
11111
J
10 k
10M
I
100 k
_1 M
10 M
l-
I-
50
~
t-
t40
~
30
IR
I-
20
10
11111
1k
~
I
30
10
lI-
I"l
r- RL=100kO
40 I-
1M
Figure 18
70
III
'0
I
100k
~
f - Frequency - Hz
Figure 17
60
i--"
o
~
TA = 25°C
VI=3.5V
'=
Co = 4.7 ~F(CSR = 1 OJ
No Input capacitance
111111'
10
f - Frequency - Hz
100
1111111
1k
....
"'llIL
10 k
l
100 k
J
1M
10 M
f - Frequency - Hz
Figure 19
Figure 20
:ilTEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-a9
TPS71H01Q,TPS71H33Q,TPS71H48Q,TPS71H50Q
LOW-DROPOUT VOLTAGE REGULATORS
SLVS152A - NOVEMBER 1996 - REVISED JANUARY 1997
TYPICAL CHARACTERISTICS
TPS71 H01Q
TPS71H33Q
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
10
l!:>
"1\
::I.
I
~
c
"
TA = 25°C
No Input Capacitance
VI =3.5V
Vo Programmed to 2.5 V
~l'.
Co = 4.~ ~~ (CSR = 1 0
.,,'
Co = 10 ILF (CSR = 1 0
.!CD
tS
I\.
0.1
8.
TA=25°C
No Input Capacitance
VI=4.3V
1"'11
~
::I.
I
"
~
c
"
.
,
\
l!
l!:>
CD
Q
CD
I\,
z"
'0
10
~v
Co = 100'~F (CSR = 1 0)
z
l!
[\\
1
U)
'S
'Sa.
'S
f
0
~
~
0.1
r--.
0
CO=10?~~(CSR=1 O)-V
0.01
10
0.01
10
f - Frequency - Hz
f - Frequency - Hz
Figure 21
Figure 22
TPS71H48Q
TPS71H50Q
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
10
10
TA = 25°C
No Input capacitance
VI =5.85 V
1\
::I.
I
f "
I
II
I I I 111111
I I
II
I 11111111
I I
Co= 10 ILF(CSR = 10)
~
rtlli
Co = 4.71LF (CSR = 1 0)
0.01
10
~
1\
l~
I
~
c
"
4.~ ~FI(~~~ = ~ ri) I
11111 IJ
III
TA=25°C
No Input Capacitance
VI=6V
CD
'0
z
i
1\
0.1
I
ill
.llil
I b~l~
..
I\,
~
Cp
CO= 1O ILF (CSR=10)
l!
!!l
.1
a.
U)
'S
f
i ~ffl~~ (~S~ 1=1 ~ I~)
II 11111
100
1[\
0.1
0
II IIIII
1k
10 k
f - Frequency - Hz
100 k
r-
Co = 100 ILF (CSR = 1 0)
0.01
10
"'
100
""'1 k
f - Frequency - Hz
Figure 24
Figure 23
-!!1 TEXAS
2-90
11
Co = 4.71LF (CSR = 1 0)
'0
U)
l!:>
llWJi 111
III
Co = 10 ILF (CS~ 1 0)
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
10 k
100 k
TPS71H01Q,TPS71H33Q,TPS71H48Q,TPS71H50Q
LOW-DROPOUT VOLTAGE REGULATORS
SLVS152A - NOVEMBER 1996 - REVISED JANUARY 1997
TYPICAL CHARACTERISTICS
DIVIDER RESISTANCE
PASS-ELEMENT RESISTANCE
vs
vs
INPUT VOLTAGE
FREE·AIR TEMPERATURE
1.2
1.1
TA=25°C
VI(FB) = 1.12 V
Cl
1.1
I
...c
ell
I
II:
C
ell
E
i!Irl>
i
I
C
0
U;
e
0.9
"'"""'"
Cl
:E
I
0.8
8
c
./ lo=500mA
0.7
j
~
0.6
0.5
\ 1\
0.4
~
.......
0.3
~
,. IO=100mA
I
II:
~
4
0.8
0.7
""""-'"'""'"TPS71H33 r--
5
6
7
8
VI - Input Voltage - V
9
10
-25
0
25
50
75
100
TA - Free-Air Temperature - °C
Figure 25
C
~
::I
0
vs
vs
FREE·AIR TEMPERATURE
VI = VO(nom) + 1 V
VI(sense) = VO(nom)
5.6
/
5.4
~
c7l
I
ic
J
5.2
5
4.8
4.6
4.4
-50
V
0.6
V
j
/
/
I
VFB
=2.5 V
0.5
~
I
I
0.4
/
C
/
c
it
ADJUSTABLE VERSION
FB LEAKAGE CURRENT
FREE·AIR TEMPERATURE
6
c(
::I.
I
i
0
/
II
J
S
0.3
/
0.2
III
u..
0.1
/
./
o
-25
0
25
125
Figure 26
FIXED·OUTPUT VERSIONS
SENSE PIN CURRENT
5.8
::::::::t:- '"""
r-- r.:::::
......... r-....
0.6
0.4
-50
0.1
3
TPS71~
0.9
0.5
0.2
2
VI = VO(nom) + 1 V
VI(sense) = VO(nom)
~S71H50···
-
50
75
100
125
-50
-25
TA - Free-Air Temperature - °C
0
25
50
/
75
I
100
125
TA - Free·Alr Temperature - °C
Figure 27
Figure 28
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-91
TPS71H01Q,TPS71H33Q,TPS71H48Q,TPS71H50Q
LOW-DROPOUT VOLTAGE f:lEGULATORS
SLVS152A- NOVEMBER 1996- REVISED JANUARY 1997
TYPICAL CHARACTERISTICS
MINIMUM INPUT VOLTAGE FOR ACTIVE
PASS ELEMENT
MINIMUM INPUT VOLTAGE FOR VALID
POWER GOOD (PG)
VB
VB
FREE·AIR TEMPERATURE
FREE·AIR TEMPERATURE
1.1
2.1
RL= 500 g
2.09
>
I
GI
I$!
"S
Co
/
2.08
2.07
./
2.06
.5
2.05
E
::I
E
C
2.04
:E
2.03
>"
2.02
I
, ./
V
/
V
.!!
;e
"S
Co
-25
V
E
::I
E
1.07
C
:E
I
>"
0
1
1.08
.5
25
50
75
100
,/
1.06
1.05
-50
2
-50
-'-
1.09
GI
Cl
.. V
I
2.01
V
>
/
125
-25
TA - Free-Air Temperatura - °C
0
Figure 30
EN INPUT CURRENT
VB
FREE·AIR TEMPERATURE
100
90
I
1:
~
::I
U
I.
.5
I
Iffi
.::
I
VI
J
I
= VI(EN) = 10 V
80
II
70
V
60
I
/
50
40
II
30
---
20
10
o
-40 -20
0
20
40
.- /
80
80
100 120 140
TA - Free-Air Temperature - °C
Figure 31
2-92
25
50
V
75
TA - Free-Air Temperature - °C
Figure 29
'l1!
V
V
L
-!111EXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
V
100
125
TPS71H01Q,TPS71H33Q,TPS71H48Q,TPS71H50Q
LOW-DROPOUT VOLTAGE REGULATORS
SLVS152A - NOVEMBER 1996 - REVISED JANUARY 1997
TYPICAL CHARACTERISTICS
OUTPUT VOLTAGE RESPONSE FROM
ENABLE (EN)
>
VO(nom) - 1--
I
J
t
~
I
V
~
i
I
J'
TA=25°C
RL=500n
Co = 4.711F (ESR = 10)
No Input CapacItance
6
4
::;-
2
J
~
o lifi
o
-2
20
40
60
80 100 120 140
nme-11II
Figure 32
POWER-GOOD (PG) VOLTAGE
va
OUTPUT VOLTAGE
6~--~----~--~----~--~
TA=25°C
PO Pulled Up to 5 V WIth 5 kn
::;- 5i----+--n---4+-r---t----1
t
~
41----+--+-+--+-+---+-----1
~
1
'l
i
3
2 1------'1----1+---1+---1---1
11.
I
~ 1 I----+--+t---++---+-----I
>
Vo - Output Voltaga (Vo as a parcent of VO(nom» - %
Figure 33
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • OALLAS. TEXAS 75265
2-93
TPS71H01Q,TPS71H33Q,TPS71H48Q,TPS71H50Q
LOW-DROPOUT VOLTAGE REGULATORS
SLVS152A - NOVEMBER 1996 - REVISED JANUARY 1997
TYPICAL CHARACTERISTICS
TYPICAL REGIONS OF STABILITY
TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE
COMPENSATION SERIES RESISTANCE
vs
vs
OUTPUT CURRENT
OUTPUT CURRENT
a
I
J
j
15
I~
I
II:
~
50 100 150 200 250 300 350 400 450 500
50 100 150 2(10 250 300 350 400 450 500
10 - Output Current - mA
10 - Output Current - mA
Figure 35
Figure 34
TYPICAL REGIONS OF STABILITY
TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE
COMPENSATION SERIES RESISTANCE
vs
vs
ADDED CERAMIC CAPACITANCE
ADDED CERAMIC CAPACITANCE
100
100
a
a
I
I
tlc
§
I
I
10
II:
10
I
·1
en
c
c
0
0
i
I!!
:;:I
..
I:c
8-
a.
E
E
0
8
(.)
I
II:
I
II:
en
~
(.)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
Ceramic capacitance -I1F
Ceramic Capacitance -I1F
Figure 37
Figure 36
-!!1TEXAS
2-94
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
1
TPS71H01Q,TPS71H33Q,TPS71H48Q,TPS71H50Q
LOW-DROPOUT VOLTAGE REGULATORS
SLVS152A - NOVEMBER 1996 - REVISED JANUARY 1997
TYPICAL CHARACTERISTICS
TYPICAL REGIONS OF STABILlTyt
TYPICAL REGIONS OF STABILlTYt
COMPENSATION SERIES RESISTANCE
vs
OUTPUT CURRENT
COMPENSATION SERIES RESISTANCE
vs
OUTPUT CURRENT
100
a
a
Capacitance
I
I
CO= 10l1F
Ij 10~_
g
No Ceramic Capacitance
= 25°C
I
I
c
i
E
E
8
8
I
I
~
~
i
a::
13
0.1
0.1
L-....L..---l'--....L..---l_....L...---L_..J....---L._..I.-....I
o
50 100 150 200 250 300 350 400 450 500
L-....L..---l'--....L..---l_....L...---L_-'----L_..J........I
o
50 100 150 200 250 300 350 400 450 500
10 - Output Current - rnA
10 - Output Current - rnA
Figure 39
Figure 38
TYPICAL REGIONS OF STABILITYt
TYPICAL REGIONS OF STABILlTvt
COMPENSATION SERIES RESISTANCE
vs
ADDED CERAMIC CAPACITANCE
COMPENSATION SERIES RESISTANCE
vs
ADDED CERAMIC CAPACITANCE
a
a
I
I
Ii
c
II
J
I~
~
~
I
6
I
I
0.1
I..-........._L-....L..---l'--....L..---'_-'---'_.......---'
o
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
0.1
L-....I....---L_...L--.l.._l..-....I....---L_...I....---L.-..I
o
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
Ceramic Capacitance -I1F
1
Ceramic capacitance - I1F
Figure 41
Figure 40
tCSR values below 0.1 n are not recommended.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-95
TPS71H01Q,TPS71H33Q,TPS71H48Q,TPS71H50Q
LOW-DROPOUT VOLTAGE REGULATORS
SLVS152A - NOVEMBER 1996 - REVISED JANUARY 1997
TYPICAL CHARACTERISTICS
VI
IN
To load
OUTI---.-----~E
+ Co
'--~::..-....
ccert
Rl
CSR
t Ceramic capacitor
Figure 42. Test Circuit for Typical Regions of Stability (see Figures 34 through 41)
~TEXAS '
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TPS71H01Q,TPS71H33Q,TPS71H48Q,TPS71H50Q
LOW-DROPOUT VOLTAGE REGULATORS
SLVS152A - NOVEMBER 1996 - REVISED JANUARY 1997
THERMAL INFORMATION
standard TSSOP-20
In response to system-miniaturization trends, integrated circuits are being offered in low-profile and fine-pitch
surface-mount packages. Implementation of many of today's high-performance devices in these packages
requires special attention to power dissipation. Many system-dependent issues such as thermal coupling,
airflow, added heat sinks and convection surfaces, and the presence of other heat-generating components
affect the power-dissipation limits of a given component.
Three basic approaches for enhancing thermal performance are illustrated in this discussion:
•
•
•
Improving the power-dissipation capability of the PWB design
Improving the thermal coupling of the component to the PWB
Introducing airflow in the system
Figure 43 is an example of a thermally enhanced PWB layout for the 20-lead TSSOP package. This layout
involves adding copper on the PWB to conduct heat away from the device. The RaJA for this component/board
system is illustrated in Figure 44. The family of curves illustrates the effect of increasing the size of the
copper-heat-sink surface area. The PWB is a standard FR4 board (L x W x H 3.2 inch x 3.2 inch x 0.062 inch);
the board traces and heat sink area are 1-oz (per square foot) copper.
=
L __ ,
r---..J
L ________ -.J
Figure 43. Thermally Enhanced PWB Layout (not to scale) for the 20-Pin TSSOP
Figure 45 shows the thermal resistance for the same system with the addition of a thermally conductive
compound between the body of the TSSOP package and the PWB copper routed directly beneath the device.
The thermal conductivity for the compound used in this analysis is 0.815 W/m x
ce.
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SLVS152A - NOVEMBER 1996 - REVISED JANUARY 1997
THERMAL INFORMATION
standard TSSOP-20 (continued)
THERMAL RESISTANCE, JUNCTION-To-AMBIENT
THERMAL RESISTANCE, JUNCTION-TO-AMBIENT
vs
vs
AIRFLOW
AIRFLOW
190r--.--~--~-~-""""---'
~ 190.---""---'----"--"---""--",,
...
i
I
-
i.
Component/Board Systam
2D-Laad TSSOP
170 Includas Thermally Conductive
Compound Between Body and Board
15
5
i~
7Or----\---t--t---+---t----;
)
50'-_-'-_--'-_ _.1...-_-'-_--'-_---'
o
50
100
150
200
250
300
Air Flow - ft/mln
;
~ 50t:::j:==:!::::t:::3:~~~~
0
Figure 44
50
100
150
200
Air Flow - ft/mln
250
300
Figure 45
Using these figures to determine the system RaJA allows the maximum power-dissipation limit to be calculated
with the equation:
TJ(max) - T A
P O(max)
= -;:;R,...:----=-6JA(system)
Where
TJ(max) is the maximum allowable junction temperature (Le., 150°C absolute maximum and
125°C maximum recommended operating temperature for specified operation).
This limit should then be applied to the internal power dissipated by the TPS71 Hxx regulator. The equation for
calculating total internal power dissipation of the TPS71 Hxx is:
PO(total)
= (VI - Vo) . 10 + VI • IQ
Because the quiescent current of the TPS71 Hxx family is very low, the second term is negligible, further
simplifying the equation to:
PO(total)
= (VI
- Vo)
. 10
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LOW·DROPOUT VOLTAGE REGULATORS
SLVS152A - NOVEMBER 1996 - REVISED JANUARY 1997
THERMAL INFORMATION
standard TSSOP·20 (continued)
For a 20-lead TSSOP/FR4 board system with thermally conductive compound between the board and the
device body, where TA = 55°C, airflow = 100 ft/min, copper heat sink area = 1 cm 2, the maximum
power-dissipation limit can be calculated. As indicated in Figure 45, the system RaJA is 94°CIW; therefore, the
maximum power-dissipation limit is:
=
P
O(max)
TJ(max) - T A
RSJA(system)
=
125°C - 55°C
940C/W
=
745
W
m
If the system implements a TPS71 H48 regulator where VI =6 V and 10 =385 mA, the internal power dissipation
is:
PO(total)
=
(VI - VO) • 10
=
(6 - 4.85) . 0.385
= 443
mW
Comparing PD(total) with PD(max) reveals that the power dissipation in this example does not exceed the
maximum limit. When it does, one of two corrective actions can be taken. The power-dissipation limit can be
raised by increasing the airflow orthe heat-sink area. Alternatively, the internal power dissipation of the regulator
can be lowered by reducing the input voltage or the load current. In either case, the above calculations should
be repeated with the new system parameters.
thermally enhanced TSSOP·20
The thermally enhanced PWP package is based on the 20-pin TSSOP, but includes a thermal pad [see
Figure 46(c)] to provide an effective thermal contact between the IC and the PWB.
Traditionally, surface mount and power have been mutually exclusive terms. A variety of scaled-down
T0220-type packages have leads formed as gull wings to make them applicable for surface-mount applications.
These packages, however, suffer from several shortcomings: they do not address the very low profile
requirements «2 mm) of many of today's advanced systems, and they do not offer a pin-count high enough
to accommodate increasing integration. On the other hand, traditional low-power surface-mount packages
require power-dissipation derating that severely limits the usable range of many high-performance analog
circuits.
The PWP package (thermally enhanced TSSOP) combines fine-pitch surface-mount technology with thermal
performance comparable to much larger power packages.
The PWP package is designed to optimize the heat transfer to the PWB. Because of the very small size and
limited mass of a TSSOP package, thermal enhancement is achieved by improving the thermal conduction
paths that remove heat from the component. The thermal pad is formed using a lead-frame design (patent
pending) and manufacturing technique to provide the user with direct connection to the heat-generating IC.
When this pad is soldered or otherwise coupled to an extemal heat dissipator, high power dissipation in the
ultrathin, fine-pitch, surface-mount package can be reliably achieved.
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LOW-DROPOUT VOLTAGE REGULATORS
SLVS152A - NOVEMBER 1996 - REVISED JANUARY 1997
THERMAL INFORMATION
thermally enhanced TSSOP·20 (continued)
o
Side View (a)
L:J
End View (b)
Bottom View (e)
Figure 46. Views of Thermally Enhanced PWP Package
Because the conduction path has been enhanced, power-dissipation capability is determined by the thermal
considerations in the PWB design. For example, simply adding a localized copper plane (heat-sink surface),
which is coupled to the thermal pad, enables the PWP package to dissipate 2.5 W in free air (reference
Figure 48(a), 8 cm 2 of copper heat sink and natural convection). Increasing the heat-sink size increases the
power dissipation range for the component. The power dissipation limit can be further improved by adding
airflow to a PWBIIC assembly (see Figures 47 and 48). The line drawn at 0.3 cm2 in Figures 47 and 48 indicates
performance at the minimum recommended heat-sink size, illustrated in Figure 50.
The thermal pad is directly connected to the substrate of the IC, which for the TPS71 HxxQPWP series is a
secondary electrical connection to device ground. The heat-sink surface that is added to the PWB can be a
ground plane or left electrically isolated. In other T0220-type surface-mount packages, the thermal connection
is also the primary electrical connection for a given terminal which is not always ground. The PWP package
provides up to 12 independent leads that can be used as inputs and outputs (Note: leads 1, 2, 9, 10, 11, 12,
19, and 20 are internally connected to the thermal pad and the IC substrate).
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SLVS152A - NOVEMBER 1996 - REVISED JANUARY 1997
THERMAL INFORMATION
thermally enhanced TSSOP-20 (continued)
THERMAL RESISTANCE
va
COPPER HEAT-SINK AREA
Natural Convection - - + - - + - - t - - - i - - - I
125
50ftlmln
o
100 ftlmln
I
g
I
100 1I\\\~d--:= 150 ftlmln
--+--+--+---+---1
j
I
~
'"
II:
50~~~
II-~~f
300ftlmln
25~-~--~--~--~--~--~--~--~
00.3
1
2
3
4
5
6
7
8
Coppar Heat-5lnk Area - cm2
Figure 47
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SLVS152A - NOVEMBER 1996 - REVISED JANUARY 1997
THERMAL INFORMATION
thermally enhanced TSSOP-20 (continued)
3.5
3.51'""T'"---,----r----,-------:l
3~----~------~~--_+--~~
3
i=
I
:I::
2.5 H------+-7'<---o7'of""---------t------:::;:;;01
E
:::i
c
ia.
2H---~~----~~~--_+----__;
J
1.5 ~~----::._'F_------+-----_+----__;
j
~
I
C
Go
0.5
~----~------t-----_+--------I
°0~---2~---4~---76--~8
0.3
0
Copper Heat-Sink Size - em2
0
2
0.3
4
6
Copper Heat-8lnk Size - em 2
(b)
(a)
3.5
=
TA 105°C
i=
3
I
i1::::i
2.5
i
2
c
1.5
c
·iii
.!!
150 fIImln
:::::::::
~ :....--- -
I
300 fIImln
I
rP
0.5
o
~
Natural Convection
~V
o
0.3
2
4
6
8
Copper Heat-Sink Size - em2
(e)
Figure 48. Power Ratings of the PWP Package at Ambient Temperatures of 25°C, 55°C, and 105°C
~TEXAS
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LOW·DROPOUT VOLTAGE REGULATORS
SLVS152A - NOVEMBER 1996 - REVISED JANUARY 1997
THERMAL INFORMATION
thermally enhanced TSSOP·20 (continued)
Figure 49 is an example of a thermally enhanced PWB layout for use with the new PWP package. This board
configuration was used in the thermal experiments that generated the power ratings shown in Figures 47 and
48. As discussed earlier, copper has been added on the PWB to conduct heat away from the device. RaJA for
this assembly is illustrated in Figure 47 as a function of heat-sink area. A family of curves is included to illustrate
the effect of airflow introduced into the system.
1----------------I
I
I
Heat-Sink Area
lozCopper
I
I
I
I
I
I
I
I
I
Board thickness
62 mils
Board size
3.2 in. x 3.2 in,
Board material
FR4
Copper trace/heat sink 1 oz
Exposed pad mounting 63/67 tin/lead solder
I---~
L ________ .J
L--i
Figure 49. PWB Layout (Including Copper Heatsink Area) for Thermally Enhanced PWP Package
From Figure 47, RaJA for a PWB assembly can be determined and used to calculate the maximum
power-dissipation limit for the componenVPWB assembly, with the equation:
TJmax - TA
P O(max) = =R-=------=-''SJA(system)
Where
TJmax is the maximum specified junction temperature (150°C absolute maximum limit, 125°C recommended
operating limit) and TA is the ambient temperature.
PO(max) should then be applied to the internal power dissipated by the TPS71 H33QPWP regulator. The equation
for calculating total internal power dissipation of the TPS71 H33QPWP is:
PO(total) = (VI - V
o) x
10
+ VI
x IQ
Since the quiescent current of the TPS71 H33QPWP is very low, the second term is negligible, further simplifying
the equation to:
PO(total)
= (VI
- V
o) x
10
For the case where TA = 55°C, airflow = 200 ft/min, copper heat-sink area = 4 cm 2, the maximum
power-dissipation limit can be calculated. First, from Figure 47, we find the system RaJA is 50°CJW; therefore,
the maximum power-dissipation limit is:
125°C - 55°C
TJmax - T A
PO(max) = R
=
50 0 C/W
= 1.4 W
'SJA(system)
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THERMAL INFORMATION
thermally enhanced TSSOP-20 (continued)
If the system implements a TPS71 H33QPWP regulator, where VI = 6 V and 10 =500 mA, the internal power
dissipation is:
PO(total)
= (VI
- V
o) x
10
= (6 -
3.3) x 0.5
= 1.35
W
Comparing Po (total) with Po(max) reveals that the power dissipation in this example does not exceed the
calculated limit. When it does, one of two corrective actions should be made: raising the power-dissipation limit
by increasing the airflow or the heat-sink area, or lowering the internal power dissipation of the regulator by
reducing the input voltage or the load current. In either case, the above calculations should be repeated with
the new system parameters.
mounting information
Since the thermal pad is not a primary connection for an electrical signal, the importance of the electrical
connection is not significant. The primary requirement is to complete the thermal contact between the thermal
pad and the PWB metal. The thermal pad is a solderable surface and is fully intended to be soldered at the time
the component is mounted. Although voiding in the thermal-pad solder-connection is not desirable, up to 50%
voiding is acceptable. The data included in Figures 47 and 48 is for soldered connections with voiding between
20% and 50%. The thermal analysis shows no significant difference resulting from the variation in voiding
percentage.
Figure 50 shows the solder-mask land pattern for
the PWP package. The minimum recommended
heat-sink area is also illustrated. This is simply a
copper plane under the body extent of the
package, including metal routed under terminals
1,2,9,10,11,12,19, and 20.
Minimum Recommended
Heet-8lnk Area
0.27 mm ' - - -.......
I---d:=l
",---r-
.,---cp
reliability Information
This section includes demonstrated reliability test
results obtained from the qualification program.
Accelerated tests are performed at high-stress
conditions so that product reliability can be
established during a relatively short test duration.
Specific stress conditions are chosen to represent
accelerated versions of various deviceapplication environments and allow meaningful
extrapolation to normal operating conditions.
Location of Exposed
Thermal Pad on
PWPPackage
-r---q:::J
O.65mm
component level reliability test results
~
~
ct:::J
1"---
I
I
I
I
I
I
IL. _ _ _ _ _ .JI
I'c::P
r
1.2mm
c:p
c::::p
c:?
c:b
,..1!:::::t- 5.72 mm -t:::::!L.
Figure 50. PWP Package Land Pattern
preconditioning
Preconditioning of components prior to reliability testing is employed to simulate the actual board assembly
process used by the customer. This ensures that reliability test results are more representative of those that
would be seen in the final application. The general form of the preconditioning sequence includes a moisture
soak followed by multiple vapor-phase-reflow or infrared-reflow solder exposures. All components used in the
following reliability tests were preconditioned in accordance with JEOEC Test Method A113 for Level 1 (not
moisture-sensitive) products.
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THERMAL INFORMATION
high-temperature life test
High-temperature life testing is used to demonstrate long-term reliability of the product under bias. The potential
failure mechanisms evaluated with this stress are those associated with dielectric integrity and design or
process sensitivity to mobile-ion phenomena. Components are tested at an elevated ambient temperature of
155°C for an extended period. Results are derated using the Arrhenius equation to an equivalent number of unit
hours at a representative application temperature. The corresponding predicted failure rate is expressed in
FITs, or failures per billion device-hours. The failure rate shown in this case is data-limited since no actual
failures were experienced during qualification testing.
PREDICTED LONG-TERM FAILURE RATE
Number of Units
Equivalent Unit Hours at 55°C and 0.7 eV
325
24,468,090
biased humidity test
Biased humidity testing is used to evaluate the effects of moisture penetration on plastic-encapsulated devices
under bias. This stress verifies the integrity of the package construction and the die passivation system. The
primary potential failure mechanism is electrolytic corrosion. Components are biased in a low power state to
reduce heat dissipation and are subjected to a 120°C, 85%-relative-humidity environment for 100 hours.
BIASED HUMIDITY TEST RESULTS
Equivalent Unit Hours at 85°C and 85% RH
357,000
autoclave test
The autoclave stress is used to assess the capabilities of the die and package construction materials with
respect to moisture ingress and extended exposure. Predominant failure mechanisms include leakage currents
that result from internal moisture accumulation and galvanic corrosion resulting from reactions with any present
ionic contaminants. Components are subjected to a 121°C, 15 PSIG,·100%-relative-humidity environment for
240 hours.
AUTOCLAVE TEST RESULTS
Total Unit Hours
54,720
thermal shock test
Thermal shock testing is used to evaluate the capability of the component to withstand mechanical stress
resulting from differences in thermal coefficients of expansion among the die and package construction
materials. Failure mechanisms are typically related to physical damage at interface locations between different
materials. Components are cycled between --65°C and 150°C in liquid mediums for a total duration of 1000
'
cycles.
TH.ERMAL SHOCK TEST RESULTS
Total Unit Cycles
345,000
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THERMAL INFORMATION
PWB assembly level reliability results
temperature cycle test
Temperature cycle testing of the PWB assembly is used to evaluate the capability of the assembly to withstand
mechanical stress resulting from the differences in thermal coefficients of expansion among die, package,and
PWB board materials. This testing is also used to sufficiently age the soldered thermal connection between the
thermal pad and the Cu trace on the FR4 board and evaluate the degradation of the thermal resistance for a
board-mounted test unit. The assemblies were cycled between temperature extremes of -40°C and 125°C for
a total duration of 730 cycles.
TEMPERATURE CYCLE TEST RESULTS
Total Unit
Cycles
Failures
Average Change
In R9JA(system)
36,500
0
-0.41%
solderability test
Solderability testing is used to simulate actual board-mount performance in a reflow process.
Solderability testing is conducted as follows: The test devices are first steam-aged for 8 hours. A stencil is used
to apply a solder-paste terminal pattern on a ceramic substrate (nominal stencil thickness is 0.005 inch). The
test units are manually placed on the solder-paste footprint with proper implements to avoid contamination. The
ceramic substrate and components are subjected to the IR reflow process as follows:
IR REFLOW PROCESS
I Temperature
ITIme
PREHEAT SOAK
REFLOW
150°C to 170°C
215°C to 230°C
60 sec
60 sec
After cooling to room temperature, the component is removed from the ceramic substrate and the component
terminals are subjected to visual inspection at 10X magnification.
Test results are acceptable if all terminations exhibit a continuous solder coating free of defects for a minimum
95% of the critical surface area of any individual termination. Causes for rejection include: dewetting,
nonwetting, and pin holes. The component leads and the exposed thermal pad were evaluated against this
criteria.
Number of Test Units
22
X-ray test
X-ray testing is used to examine and quantify the voiding of the soldered attachment between the thermal pad
and the PWB copper trace. Voiding between 20% and 50% was observed on a 49-piece sample.
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APPLICATION INFORMATION
The TPS71 Hxx series of low-dropout (LDO) regulators is designed to overcome many of the shortcomings of
earlier-generation LDOs, while adding features such as a power-saving shutdown mode and a power-good
indicator. The TPS71 Hxx family includes three fixed-output voltage regulators: the TPS71 H33 (3.3 V), the
TPS71 H48 (4.85 V), and the TPS71 H50 (5 V). The family also offers an adjustable device, the TPS71 H01
(adjustable from 1.2 V to 9.75 V).
device operation
The TPS71 Hxx, unlike many other LDOs, features very low quiescent currents that remain virtually constant
even with varying loads. Conventional LDO regulators use a pnp-pass element, the base current of which is
directly proportional to the load current through the regulator (lB Idl3). Close examination of the data sheets
reveals that those devices are typically specified under near no-load conditions; actual operating currents are
much higher as evidenced by typical quiescent current versus load current curves. The TPS71 Hxx uses a
PMOS transistor to pass current; because the gate of the PMOS element is voltage driven, operating currents
are low and invariable over the full load range. The TPS71 Hxx speCifications reflect actual performance under
load.
=
Another pitfall associated with the pnp-pass element is its tendency to saturate when the device goes into
dropout. The resulting drop in 13 forces an increase inlB to maintain the load. During power up, this translates
to large start-up currents. Systems with limited supply current may fail to start up. In battery-powered systems,
it means rapid battery discharge when the voltage decays below the minimum required for regulation. The
TPS71 Hxx quiescent current remains low even when the regulator drops out, eliminating both problems.
Included in the TPS71 Hxx family is a 4.85-V regulator, the TPS71 H48. Designed specifically for 5-V cellular
systems, its 4.85-V output, regulated to within ± 2%, allows for operation within the low-end limit of 5-V systems
specified to ± 5% tolerance; therefore, maximum regulated operating lifetime is obtained from a battery pack
before the device drops out, adding crucial talk minutes between charges.
The TPS71 Hxx family also features a shutdown mode that places the output in the high-impedance state
(essentially equal to the feedback-divider resistance) and reduces quiescent current to under 2 ~. If the
shutdown feature is not used, EN should be tied to ground. Response to an enable transition is quick; regulated
output voltage is reestablished in typically 120 JlS.
minimum load requirements
The TPS71 Hxx family is stable even at zero load; no minimum load is required for operation.
SENSE-pin connection
The SENSE pin of fixed-output devices must be connected to the regulator output for proper functioning of the
regulator. Normally, this connection should be as short as possible; however, the connection can be made near
a critical circuit (remote sense) to improve performance at that point. Internally, SENSE connects to a
high-impedance wide-bandwidth amplifier through a resistor-divider network and noise pickup feeds through
to the regulator output. Routing the SENSE connection to minimize/avoid noise pickup is essential. Adding an
RC network between SENSE and OUT to filter noise is not recommended because it can cause the regulator
to oscillate.
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APPLICATION INFORMATION
external capacitor requirements
An input capacitor is not required; however, a ceramic bypass capacitor (0.047 pF to 0.1 ~F) improves load
transient response and noise rejection if the TPS71 Hxx is located more than a few inches from the power supply.
A higher-capacitance electrolytic capacitor may be necessary if large (hundreds of milliamps) load transients
with fast rise times are anticipated.
As with most LDO regulators, the TPS71 Hxx family requires an output capacitor for stability. A low-ESR 1O-~F
solid-tantalum capacitor connected from the regulator output to ground is sufficient to ensure stability over the
full load range (see Figure 51 ). Adding high-frequency ceramic or film capacitors (such as power-supply bypass
capacitors for digital or analog ICs) can cause the regulator to become unstable unless the ESR of the tantalum
capacitor is less than 1.2 0 over temperature. Capacitors with published ESR specifications such as the
AVX TPSD106K035R0300 and the Sprague 593D106X0035D2W work well because the maximum ESR at
25°C is 300 mO (typically, the ESR in solid-tantalum capacitors increases by a factor of 2 or less when the
temperature drops from 25°C to -40°C). Where component height and/or mounting area is a problem,
physically smaller, 1O-~F devices can be screened for ESR. Figures 34 through 41 show the stable regions of
operation using different values of output capacitance with various values of ceramic load capacitance.
In applications with little or no high-frequency bypass capacitance « 0.2 ~F), the output capacitance can be
reduced to 4.7 ~F, provided ESR is maintained between 0.7 and 2.5 n Because minimum capacitor ESR is
seldom if ever specified, it may be necessary to add a 0.5-0 to 1-0 resistor in series with the capacitor and limit
ESR to 1.5 0 maximum. As show in the ESR graphs (Figures 34 through 41), minimum ESR is not a problem
when using 1O-~F or larger output capacitors.
The following is a partial listing of surface-mount capacitors usable with the TPS71 Hxx family. This information
(along with the ESR graphs, Figures 34 through 41) is included to assist in selection of suitable capacitance
for the user's application. When necessary to achieve low height requirements along with high output current
and/or high ceramic load capacitance, several higher ESR capacitors can be used in parallel to meet the
guidelines above.
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SLVS152A- NOVEMBER 1996 - REVISED JANUARY 1997
APPLICATION INFORMATION
external capacitor requirements (continued)
All load and temperature conditions with up to 1 IlF of added ceramic load capacitance:
PART NO.
MFR.
VALUE
MAX ESRt
SIZE (H x L x W)t
T421C226M010AS
Kemet
22 IlF, 10 V
0.5
2.8 x 6 x 3.2
593D156X0025D2W
Sprague
15 IlF, 25 V
0.3
2.8 x 7.3 x 4.3
593D106X0035D2W
Sprague
10 IlF, 35 V
0.3
2.8 x 7.3 x 4.3
TPSD106M035R0300
AVX
10 IlF, 35 V
0.3
2.8 x 7.3 x 4.3
Load < 200 rnA, ceramic load capacitance < 0.2 IlF, full temperature range:
PART NO.
MFR.
VALUE
MAX ESRt
SIZE (H x L x W)t
1.2x7.2x6
1.1
2.5 x 7.1 x 3.2
1
592D156X0020R2T
Sprague
15 IlF, 20 V
595D156X0025C2T
Sprague
15 IlF, 25 V
595D106X0025C2T
Sprague
10 IlF, 25 V
1.2
2.5 x 7.1 x 3.2
293D226X0016D2W
Sprague
22 IlF, 16 V
1.1
2.8 x 7.3 x 4.3
Load < 100 rnA, ceramic load capacitance < 0.2IlF, full temperature range:
VALUE
MAX ESRt
195D106X06R3V2T
PART NO.
Sprague
MFR.
10 IlF, 6.3 V
1.5
1.3 x 3.5 x 2.7
SIZE (H x L x W)t
195D106X0016X2T
Sprague
10IlF, 16 V
1.5
1.3 x 7 x 2.7
595D156X001682T
Sprague
151lF, 16 V
1.8
1.6 x 3.8 x 2.6
695D226X0015F2T
Sprague
221lF, 15 V
1.4
1.8 x 6.5 x 3.4
695D156X0020F2T
Sprague
151lF, 20 V
1.5
1.8 x 6.5 x 3.4
695D106X0035G2T
Sprague
10 IlF, 35 V
1.3
2.5 x 7.6 x 2.5
t Size is in mm. ESR is maximum resistance at 100 kHz and TA =25°C. Listings are sorted by height.
TPS71 Hxxt
IN
VI
IN
C1
0.1 J!F
SOV
PG
20
IN
6
PG
15
EN
250kQ
Vo
---,I
+
Co
10J!F
I
CSR I
_ _ _ .JI
t TPS71 H33, TPS71 H48, TPS71 H50 (fixed-voltage options)
Figure 51. Typical Application Circuit
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-109
TPS71H01Q,TPS71H33Q,TPS71H48Q,TPS71H50Q
LOW-DROPOUT VOLTAGE REGULATORS
SLVS152A - NOVEMBER 1996 - REVISED JANUARY 1997
APPLICATION INFORMATION
programming the TPS71 H01 adjustable LOO regulator
Programming the adjustable regulators is accomplished using an external resistor divider as shown in
Figure 52. The equation governing the output voltage is:
= V ref
V0
x (1 +
~~)
where
Vref = reference voltage, 1.178 V typ
Resistors R1 and R2 should be chosen for approximately 7-1JA divider current. A recommended value for R2
is 169 k.Q with R1 adjusted for the desired output voltage. Smaller resistors can be used, but offer no inherent
advantage and consume more power. Larger values of R1 and R2 should be avoided as leakage currents at
FB will introduce an error. Solving equation 1 for R1 yields a more useful equation for choosing the appropriate
resistance:
R1
= (V
0
V
ref
_ 1) x R2
OUTPUT VOLTAGE
PROGRAMMING GUIDE
TPS71HOl
VI--_--IIN
O.lI1F '±'
>2.7 V
-
PG
OUTPUT
VOLTAGE
1---'''-
~
The TPS72xx family of low-dropout (LDO) voltage
regulators offers the benefits of low-dropout
voltage, micropower operation, and miniaturized
packaging. These regulators feature extremely
low dropout voltages and quiescent currents
compared to conventional LDO regulators.
Offered in small-outline integrated-circuit (SOl C)
packages and 8-terminal thin shrink small-outline
(TSSOP), the TPS72xx series devices are ideal
for cost-sensitive designs and for designs where
board space is at a premium.
E
I
III
Cl
400
.I!!
~
"5
8.
~
I
300
200
0
Q
>
100
A combination of new circuit design and process
100
150
200
250
innovation has enabled the usual pnp pass
10 - Output Current - rnA
transistor to be replaced by a PMOS device.
Figure 1. Typical Dropout Voltage Versus
Because the PMOS pass element behaves as a
Output Current
low-value resistor, the dropout voltage is very low
- maximum of 85 mV at 100 mA of load current
(TPS7250) - and is directly proportional to the
load current (see Figure 1). Since the PMOS pass
element is a voltage-driven device, the quiescent current is very low (300 J.IA maximum) and is stable over the
entire range of output load current (0 mA to 250 mA). Intended for use in portable systems such as laptops and
cellular phones, the low-dropout voltage and micropower operation result in a significant increase in system
battery operating life.
The TPS72xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current
to 0.5 J.IA maximum at TJ = 25°C. Other features include a power-good function that reports low output voltage
and may be used to implement a power-on reset or a low-battery indicator.
The TPS72xx is offered in 2.5-V, 2. 75-V§, 3-V, 3.3-V, 4.85-V, and 5-V fixed-voltage versions and in an adjustable
version (programmable over the range of 1.2 V to 9.75 V). Output voltage tolerance is specified as a maximum
of 2% over line, load, and temperature ranges (3% for adjustable version).
§ This device is in the product preview stage of development. Please contact the local TI sales office for availability.
This document contalnllnfarmation on products In more than Dna phase
of developmant. The lilt.. of _ device Is Indlcalod on tho pago(o)
opacifying Its a_cal characteriltlcs.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 855303 • DALLAS, TEXAS 75285
Copyright © 1998, Texas Instruments Incorporated
2-113
TPS7201Q,TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxY
~J~~~~2~~~5~2~~~~o~!2~!9~LDO) VOLTAGE REGULATORS
AVAILABLE OPTIONS
OUTPUT VOLTAGE
PACKAGED DEVICES
(V)
TJ
-55°C to 150°C
CHIP FORM
(Y)
SMALL OUTLINE
(D)
PDIP
(P)
TSSOP
5.1
TPS725OQO
TPS7250QP
TPS7250QPWR
TPS7250Y
4.85
4.95
TPS7248QO
TPS7248QP
TPS7248QPWR
TPS7248Y
3.23
3.3
3.37
TPS7233QO
TPS7233QP
TPS7233QPWR
TPS7233Y
2.94
3
3.06
TPS723OQO
TPS7230QP
TPS7230QPWR
TPS7230Y
2.69
2.75
2.81
TPS7228QOl
TPS7228QPl
TPS7228QPWRl
TPS7228yl
2.45
2.5
2.55
TPS7225QO
TPS7225QP
TPS7225QPWR
TPS7225Y
TPS7201QO
TPS7201QP
TPS7201QPWR
TPS7201Y
MIN
TYP
MAX
4.9
5
4.75
Adjustable
1.2 V to 9.75 V
(PW)
The 0 package IS available taped and reeled. Add R suffix to deVice type (e.g., TPS725OQOR). The PW package IS only available left-end
taped and reeled. The TPS7201 Q is programmable using an external resistor divider (see application information). The chip form is tested
at 25°C.
TPS72xx*
5
IN
PG
IN
SENSE
2
PG
6
250kO
OUT
0.111F
4
EN
OUT
GND
3
Vo
r
I
I
I
I
I
L
------,I
Co
(see Note A)
I
I
I
_CSR=
_ _10
_ _ _ ..1I
:j:TPS7225Q, TPS7228Qt, TPS723OQ, TPS7233Q, TPS7248Q, TPS72500
(fixed-voltage options)
NOTE B. Capacitor selection is nontrivial. See application information section
for details.
Figure 2. Typical Application Configuration
t This device is in the product preview stage of development. Please contact the local TI sales office for availability.
~TEXAS
INSTRUMENTS
2-114
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS7201Q, TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxY
MICROPOWER LOW.DROPOU!v~~~~tYR~~~~~v~~D~~v~~!~~!
TPS72xx chip Information
These chips, when properly assembled, display characteristics similar to the TPS72xxQ. Thermal compression
or ultrasonic bonding may be used on the doped aluminum bonding pads. The chips may be mounted with
conductive epoxy or a gold-silicon preform.
(5)
BONDING PAD ASSIGNMENTS
(3)
IN
(2)
EN
SENSEt
(6)
TPS72xx
FB:I=
(4)
OUT
(7)
PG
(1)
GND
CHIP THICKNESS: 15 MILS TYPICAL
BONDING PADS: 4 x 4 MILS MINIMUM
TJmax = 150°C
TOLERANCES ARE ± 10%.
ALL DIMENSIONS ARE IN MILS.
t Fixed-voltage options only (TPS7225, TPS7228#,
TPS7230, TPS7233, TPS7248, and TPS7250)
:1= Adjustable
version only (TPS7201)
NOTE A. For most applications, OUT and SENSE should
be tied together as close as possible to the device;
for other implementations, refer to the SENSE-pin
connection discussion in the application
information section of this data sheet.
1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'
functional block diagram
IN
RESISTOR DIVIDER OPTIONS
§
EN ---------e--~
PG
OUT
SENSE'II/FB
DEVICE
R1
TPS7201
TPS7225
TPS7228#
TPS7230
TPS7233
TPS7248
TPS7250
0
257
306
357
420
726
756
R2
00
233
233
233
233
233
233
UNIT
Q
k!l
kQ
k!l
k!l
k!l
k!l
NOTE A: Resistors are nominal values only.
R1
COMPONENT COUNT
R2
MOS transistors
Bilpolar transistors
Diodes
Capacitors
Resistors
108
41
4
15
75
GND
§ Switch positions are shown with EN low (active).
11 For most applications, SENSE should be externally connected to OUT as close as possible to the device.
For other Implementations, refer to the SENSE-pin connection discussion in application information section.
# This device is in the product preview stage of development. Please contact the local TI sales office for availability.
~1ExAs
INSTRUMENTS
POST OFFICE BOX 655303 • OALLAS. TEXAS 75265
2-115
TPS7201Q,TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q, TPS72xxV
~JEB£~2~~9~5~2~~~~o9!2~r99\LDO) VOLTAGE REGULATORS
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)t
Input voltage range;, VI, PG, SENSE, EN ............................................ -0.3 V to 11 V
Output current, 10 ......................................................................... 1.5 A
Continuous total power dissipation ............................. See Dissipation Rating Tables 1 and 2
Operating virtual junction temperature range, TJ .................................... -55°C to 150°C
Storage temperature range, Tstg .................................................. -65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds ............................... 260°C
t
Stresses beyond those listed under "absolute maximum ratings' may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" Is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
; All voltage values are with respect to network ground terminal.
DISSIPATION RATING TABLE 1 - FREE-AIR TEMPERATURE (see Note 1 and Figure 3)
PACKAGE
TA,,;25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
TA = 85°C
POWER RATING
TA= 125°C
POWER RATING
D
P
PW
725mW
1175mW
525mW
5.8mWfOC
8.74mW/oC
4.2mW/oC
464mW
782mW
336mW
377mW
650mW
273mW
145mW
301 mW
105mW
DISSIPATION RATING TABLE 2 - CASE TEMPERATURE (see Note 1 and Figure 4)
PACKAGE
D
P
PW
TC"; 25°C
POWER RATING
DERATING FACTOR
ABOVE TC = 25°C
TC = 70·C
POWER RATING
TC = 85°C
POWER RATING
TC = 125°C
POWER RATING
2063mW
2738mW
2900mW
16.5mWfOC
20.49 mW/oC
23.2mW/oC
1320mW
1816mW
1856mW
1073 mW
1508 mW
1508 mW
413mW
689mW
580mW
NOTE 1: Dissipation rating tables and figures are provided for maintenance of junction temperature at or below absolute
maximum of 150°C. For guidelines on maintaining junction temperature within the recommended operating range,
see application information section.
MAXIMUM CONTINUOUS DISSIPATION
MAXIMUM CONTINUOUS DISSIPATION
vs
vs
FREE-AIR TEMPERATURE
CASE TEMPERATURE
1200
J:
1100
I
1000
E
c
i
'ii
is.,
::I
0
::I
~
8
~I
c
I
900
800
700
!
600
~
500
E
400
E
300
I
::I
I
200
I
I
R
R
100
0
25
100
TA - Free-Air Temperature - °C
Figure 3
Figure 4
~TEXAS
2-116
TC - case Temperature - °C
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS7201Q,TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxY
MICROPOWER LOW.DROPOU!v~~~~t~~~!~~~v~~~~v~~!~~!
recommended operating conditions
MIN
MAX
3
10
TPS72250
3.65
10
TPS7228a*
TBO
10
TPS72300
3.96
10
TPS72330
3.98
10
TPS72480
5.24
10
TPS72500
5.41
10
TPS72010
Input voltage, VI t
High-level input voltage at EN, VIH
Output current, 10
Operating virtual junction temperature, TJ
V
V
2
Low-level input voHage at EN, VIL
UNIT
0.5
V
0
250
mA
-40
125
·C
..
..
t MInimum
Input voltage defined In the recommended operating cond~lons IS the maximum specified output voltage plus dropout voltage at the
maximum specified load range. Since dropout voHage is a function of output current, the usable range can be extended for lighter loads. To
calculate the minimum input voltage for the maximum load current used in a given application, use the following equation:
VI(min) = VO(max)
+ VOO(max load)
Because the TPS7201 is programmable, rOS(on) should be used to calculate vOO before applying the above equation. The equation for
calculating VOO from rOS(on) is given in Nole 3 under the TPS7201 electrical characteristics table. The minimum value of 3 V is the absolute
lower limit for the recommended input-voltage range for the TPS7201.
:j: This device is in the product preview stage of development. Please contact the local TI sales office for availability.
~1ExAs
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-117
TPS7201Q,TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q, TPS7248Q, TPS7250Q, TPS72xxY
~JE~~~2'£!~9~5~2~~~~o~!!a~!9~LDO) VOLTAGE REGULATORS
=
=
=
=
TEST CONDITIONS*
TJ
TPS72xxQ
MIN
TYP
MAX
25°C
180
electrical characteristics, 10 10 mA, EN 0 V, Co 4.7 J.1F (CSRt 1 '-I), SENSE/FB shorted to OUT
(unless otherwise noted)
PARAMETER
Ground current (active mode)
ENSO.5V,
OmAS 10 S 250 mA
VI=VO+ 1 V,
Input current (standby mode)
EN=VIo
3VSVIS 10V
Output current limit threshold
VO=OV
VI= 10V
Pass-element leakage current in
standby mode
EN=VIo
3VSVIS10V
PG leakage current
VPG=10V,
Normal operation
Output voltage temperature coeffiCient
325
25°C
0.5
1
-40°C to 125°C
25°C
0.6
EN logic low (active mode)
1.5
25°C
0.5
-40°C to 125°C
1
25°C
0.5
-40°C to 125°C
0.5
31
-40°C to 125°C
3VSVIS6V
6VSVIS10V
3 VSVI S 10V
-40°C to 125°C
o VSVI S 10V
25°C
0.5
0.5
t
-0.5
0.5
-40°C to 125°C
-0.5
0.5
25°C
-40°C to 125°C
A
IlA
IlA
ppml"C
1.9
2.5
2.5
1.1
V
mV
50
25°C
-40°C to 125°C
IpG = 3001lA
IlA
V
2.7
-40°C to 125°C
25°C
IlA
°C
2
25°C
Minimum VI for active pass element
Minimum VI for valid PG
75
185
EN hysteresis voltage
EN input current
1
-40°C to 125°C
Thermal shutdown junction temperature
EN logic high (standby mode)
225
-40°C to 125°C
UNIT
1.5
1.9
IlA
V
V
CSR(compensation series resistance) refers to the total series resistance, including the equivalent series resistance (ESR) of the capaCitor, any
series resistance added externally, and PWB trace resistance to CO.
Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
*
~TEXAS
INSTRUMENTS
2-118
POST OFFICE BOX 655303 • OALLAS, TEXAS 75265
TPS7201Q,TPS722SQ,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS72S0Q,TPS72xxY
MICROPOWER LOW.DROPOU!v~~R~tYR2~!~~~v~~~~v~~!~~~
TPS7201Q electrical characteristics, 10 = 10 rnA, VI = 3.5 V, EN = 0 V, Co = 4.71lF (CSRt = 1 U), FB
shorted to OUT at device leads (unless otherwise noted)
PARAMETER
Relerence voltage (measured
al FB with OUT connected to
FB)
VI =3.5V,
10=10mA
3VS:Vp,10V,
See Note 2
5mAs: 10 s: 250 mA,
Reference voltage
temperature coefficient
Pass-element series
resistance (see Note 3)
Input regulation
31
25°C
2.1
25°C
2.9
VI=2.9V,
50 flA s: 10 s: 250 mA
25°C
1.6
VI =3.9V,
50 flA s: 10 S:250 mA
25°C
1
VI=5.9V,
50 flA s: 10 S:250 mA
25°C
0.8
VI = 3 V to 10 V,
See Note 2
50 flA s: 10 s: 250 mA,
10=5 mA t0250mA,
See Note 2
3VS:VI s: 10V,
10 = 50 flA to 250 mA,
See Note 2
3VS:VIS:l0V,
25°C
23
36
25°C
17
49
- 40°C to 125°C
32
25°C
45
-40°C to 125°C
30
2
235
CO=10J.lF
25°C
190
CO= IOO I1F
25°C
125
FB input current
27
mV
mV
dB
50
25°C
VI=2.13V
Q
60
CO=4.7I1F
Measured at VFB
ppm/DC
43
25°C
25°C
PG hysteresis voltage'll
V
25
36
-40°C to 125°C
VFB voltage decreasing from above VPG
IpG = 400 flA,
15
25°C
f=120Hz
10Hzs:fS:100kHz,
CSRt= 1 Q
2.7
-40°C to 125°C
-40°C to 125°C
flA
75
4.5
-40°C to 125°C
UNIT
V
1.224
100 mAS: 10 S:200 mA
f= 120Hz
MAX
1.188
1.152
50 flA s: 10 s: 100 mA
PG trip-threshold voltage'll
PG output low voltage'll
25°C
-40°C to 125°C
TYP
VI =2.4V,§
10 =250 mA,
See Note 2
Output noise voltage
MIN
VI = 2.4V,§
10 = 50
Output noise spectral density
TJ
-40°C to 125°C
Output regulation
Ripple rejection
TPS7201Q
TEST CONDITIONst
J.lV/~
J.lVrms
0.95 x
VFB(nom)
-40°C to 125°C
25°C
12
25°C
0.1
V
mV
0.4
0.4
-40°C to 125°C
25°C
-10
-40°C to 125°C
-20
0.1
10
20
V
nA
t CSR refers to the total senes reSistance, including the ESR of the capacitor, any series resistance added externally, and PWB trace resistance
to CO.
:I: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
§ This voltage is not recommended.
'II Output voltage programmed to 2.5 V with closed-loop configuration (see application information).
NOTES: 2. When VI < 2.9 V and 10> 100 mA Simultaneously, pass element rOS(on) increases (see Figure 10) to a point such thatthe resulting
dropout voltage prevents the regulator from maintaining the specified tolerance range.
3. To calculate dropout voltage, use equation:
Voo = 10· rOS(on)
rOS(on) is a function of both output current and input voltage. The parametric table lists rOS(on) for VI = 2.4 V, 2.9 V, 3.9 V, and
5.9 V, which corresponds to dropout conditions for programmed output voltages of 2.5 V, 3 V, 4 V, and 6 V, respectively. For other
programmed values, refer to Figures 10 and 11.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-119
TPS7201Q, TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxY
~J~~?~2~~!Is~2~~~~o9!2~!9~LDO) VOLTAGE REGULATORS
=
=
=
=
TPS7225Q electrical characteristics, 10 10 mA, VI 3.5 V, EN 0 V, Co 4.7 J.1F (CSRt =1 il), SENSE
shorted to OUT (unless otherwise noted)
VI=3.5V,
10=10mA
3.5 V S VI S 10 V,
5 mAS 10 S250 mA
Dropout voltage
10=250mA,
VI =2.97V
Pass-element series resistance
(2.97 V - VOlIIO,
10=250mA
VI = 2.97 V,
Input regulation
VI = 3.5 Via 10 V,
50 I!A S 10 s250 mA
10=5 mAt0250mA,
3.5VSVIS10V
Output voltage
10 = 50 I!A to 250 mA,
3.5 VSVp. 10V
10 = 50 I!A
f=120Hz
10=250mA
Output noise spectral density
Output noise voltage
PG trip-threshold voltage
TJ
25°C
-40°C to 125°C
10HzSfS100kHz,
CSRt= 1 0
2.55
560
25°C
2.24
25°C
9
-40°C to 125°C
25°C
28
-40°C to 125°C
47
-40°C to 125°C
45
25°C
40
-40°C to 125°C
38
27
0
mV
36
41
mV
58
dB
46
2
25°C
248
CO= 1O IlF
25°C
200
CO=1ooIlF
25°C
130
-40°C to 125°C
0.95 x
VO(noml
25°C
50
25°C
0.3
-40°C to 125°C
V
3.4
73
25°C
CO=4.7IlF
VI=2.13V
mV
60
24
25°C
V
1.1
33
-40°C to 125°C
UNIT
850
3.B4
25°C
Vo voltage decreasing from above VPG
MAX
2.5
2.45
25°C
f=120Hz
IPG= 1.2mA,
TYP
-40°C to 125°C
PG hysteresis voltage
PG output low voltage
MIN
-40°C to 125°C
Output regulation
Ripple rejection
TPS7225Q
TEST CONDITIO~
PARAMETER
IlV/..JHz
IlVrms
V
mV
0.44
0.5
V
t CSR refers to the total series resistance, including the ESR of the capacitor, any series resistance added externally, and PWB trace resistance
. taCO·
:\: Pulse-testing techniques ara used to maintain virtual junction temperature as close
possible to ambient temperature; thermal effects must
be taken into account separately.
as
~1ExAs
2-120
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS7201Q,TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxY
MICROPOWER LOW.DROPOU!V~~~~tYR2~~~feV~~D~~V~~!~1~~
=
TPS7228Q electrical characteristics, 10 10 mA, VI
SENSE shorted to OUT (unless otherwise noted)
PARAMETER
=3.75 V, EN =0 V, Co =4.7 J.lF (CSRt =1 il),
Output voltage
TPS7228Q
TJ
TEST CONDITIONst
VI = 3.75 V,
10=10mA
3.75VSVp;10V,
5 mAs 10 S250 mA
25°C
-40°C to 125°C
Dropout voltage
VI =2.69V
10 = 100 mA,
VI = 2.69 V
-40°C to
~----------------------~---..~
Pass-element series resistance
Input regulation
10 = 250 mA,
VI = 2.69 V
(2.69 V - VO)/IO,
10 = 250 mA
VI =2.69 V,
VIS10
~VSVIS10V
10 = 50 !LA
f
...... '
.,. ...
2.... '
. . ~81
10 =250 mA
Co
UNIT
V
.... ...... TBD
mV
TBD
a
TBD
.IL------T-B-D-I
§l.C
TBD
TBD
TBD
-40°C to 125°C
Output regulation
Ripple rejection
-
~'"
25°C
10=5 mA to 250 mA,
=50 !LA to
2.69
o 125°C
VI = 3.75 Vto 10 V,
10
TYP A MAX
~. . . ..-
25°C
-40°C to 125°C 1.0.
~----------------------~---25-0C--~4·
10= 10mA,
MIN
25°C
TBD
TBD
-40°Cto 125°C
25°C
mV
TBD
TBD
mV
TBD
-40°C to 125°C
25°C
TBD
-40°C to 125°C
TBD
25°C
TBD
-40°C to 125°C
TBD
dB
=4.711F
Output noise vol
PG trip-thresh
PG hysteresis vo
h,0I_ta.::.ge_ _---'l-v...::O:...V_O_lta.::g_e_de_c_re_as_in...::g;...fr_o_m_a_bo_v_e_VP:..;G::...._+-_4_0o_C_to_1_2_5°_C+_ _ _T_B_D_ _ _+-_V_--1
e
PG output low voltage
25°C
IPG= 1.2mA,
VI =2.34V
TBD
mV
25°C
TBD
-40°C to 125°C
TBD
v
t CSR refers to the total senes resistance, Including the ESR of the capaCitor, any senes resistance added externally, and PWB trace resistance
to CO.
:j: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-121
TPS7201Q,TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxY
~JE~£~2~~9~5~2~~~~9!2~!9\LDO) VOLTAGE REGULATORS
=
=
=
=
=
TPS7230Q electrical characteristics, 10 10 mA, V, 4 V, EN 0 V, Co 4.7 ~F (CSRt 1 Q), SENSE
shorted to OUT (unless otherwise noted)
,
PARAMETER
VI=4V,
10=10mA
4VSVIS10V,
5 mAs 10 s250 mA
10= 100mA,
VI = 2.97 V
10=250mA,
VI=2.97V
Pass-element series resistance
(2.97 V - VOlIIO,
10=250mA
VI = 2.97 V,
Input regulation
VI=4Vtol0V,
50 I!A s 10 S 250 mA
10 = 5 mA to 250 rT]A,
4VSVIS10V
10 = 50 I!A to 250 mA,
4VSVIS10V
Output voltage
•.
•
f
.
Ti:ST CONDITIONS*
Dropout voltage
10 = 50 I!A
f= 120 Hz
10=250mA
Output noise spectral density
Output noise voltage
PG trip-threshold voltage
10 Hz S fS 100 kHz,
CSRt= 1
145
25°C
390
502
1.56
2.01
-40°C to 125°C
3.6
25°C
9
-40°C to 125°C
27
33
34
25°C
-40°C to 125°C
mV
42
-40°C to 125°C
a
mV
45
74
25°C
60
mV
98
25°C
45
-40°C to 125°C
44
25°C
40
-40°C to 125°C
38
56
dB
45
2
25°C
256
CO= IO I1F
25°C
206
Co= 100l1F
25°C
132
I1V/..JHz'
I1Vrms
0.95 x
VO(nom)
25°C
50
25°C
0.25
-40°C to 125°C
V
900
25°C
CO=4.7I1F
VI = 2.55 V
UNIT
185
270
25°C
-40°C to 125°C
MAX
3.06
25°C
Vo voltage decreasing from above VPG
IpG = 1.2 mA,
2.94
-40°C to 125°C
PG hysteresis voltage
PG output low voltage
TPS7230Q
TYP
3
25°C
-40°C to 125°C
f= 120 Hz
a
MIN
-40°C to 125°C
Output regulation
Ripple rejection
TJ
V
mV
0.44
0.44
V
t CSR refers to the total series resistance, including the ESR of the capacitor, any series resistance added extemally, and PWB trace resistance
to CO.
:j: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
~TEXAS
2-122
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS7201Q,TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxY
MICROPOWER LOW.DROPOU!v~~R~t~9~!~~~v~~~~V~~!~1~!
=
=
=
=
=
TPS7233Q electrical characteristics, 10 10 rnA, VI 4.3 V, EN 0 V, Co 4.7 J.1F (CSRt 1 0), SENSE
shorted to OUT (unless otherwise noted)
PARAMETER
TEST CONDITIONS*
VI = 4.3 V,
10=10mA
4.3VSVI S 10V,
5 mAs 10 S 250 mA
10= 10mA,
VI = 3.23 V
10= 100mA,
VI = 3.23 V
10=250mA,
VI = 3.23 V
Pass-element series resistance
(3.23 V - VO)/IO,
10 =250 mA
VI = 3.23 V,
Input regulation
VI = 4.3 V to 10 V,
50 IIA s 10 S 250 mA
10 = 5 mA to 250 mA,
4.3 V S VI S 10 V
10 = so IIA to 250 mA,
4.3VSVIS10V
Output voltage
Dropout voltage
10 = 50 IIA
f= 120 Hz
10=250mA
Output noise spectral density
PG trip-threshold voltage
10HzSfSl00kHz,
CSRt= 1 {2
140
25°C
-40°C to 125°C
25°C
360
180
mV
460
610
-40°C to 125°C
1.5
25°C
1.84
{2
2.S
25°C
8
-40°C to 125°C
25
33
32
25°C
-4O"C to 125°C
41
-40°C to 125°C
mV
42
71
25°C
55
mV
98
2SoC
40
-40°C to 12SoC
38
25°C
35
-40°C to 125°C
33
52
dB
44
2
265
CO= lO IlF
25°C
212
CO=l00ILF
25°C
135
-40°C to 12SoC
0.95 x
VO(nom)
25°C
32
25°C
0.22
-40°C to 125°C
V
20
232
25°C
VI = 2.8 V
UNIT
30
25°C
Vo vo~age decreasing from above VPG
MAX
3.37
14
25°C
f=120Hz
IPG= 1.2mA,
3.23
-40°C to 125°C
PG hysteresis voltage
PG output low vo~age
TPS7233Q
TYP
3.3
25°C
-40°C to 125°C
CO=4.7I1F
Output noise voltage
MIN
-40°C to 125°C
Output regulation
Ripple rejection
TJ
IIV/VHz
IIVnns
V
mV
0.4
0.4
V
t CSR refers to the total series resistance, Including the ESR of the capacitor, any senes resistance added extemally, and PWB trace resistance
to CO.
=1= Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thennal effects must
be taken into account separately.
~TEXAS
INSTRUMENTS
POST OFACE BOX 655303 • DALLAS. TEXAS 75265
2-123
TPS7201 Q, TPS722SQ, TPS7228Q, TPS7230Q
TPS7233Q, TPS7248Q,TPS72S0Q,TPS72xxY
~~~~~~~~~5~2~~~~o~!2~!9\LDO) VOLTAGE REGULATORS
=
TPS7248Q electrical characteristics, 10 10 mA, VI
SENSE shorted to OUT (unless otherwise noted)
PARAMETER
=5.85 V, EN =0 V, Co =4.7 JlF (CSRt =1 n),
TEST CONDITIONS*
VI = 5.85 V,
10=10mA
5.85 V S Vi!;; 10 V,
5 mAS 10 S250 mA
10= 10mA,
VI=4.75V
10= l00mA,
VI =4.75 V
10=250mA,
VI = 4.75 V
Pass-element series resistance
(4.75 V - VO)1I0,
10 =250 mA
VI = 4.75 V,
Input regulation
VI =5.85 Vto 10V,
50 J.lA S 10 S 250 mA
10= 5 mAt0250 rnA,
5.85VSVIS10V
Output voltage
Dropout voltage
Output regulation
10 = 50 ~ to 250 mA,
5.85VSVIS10V
10=50~
Ripple rejection
f=120Hz
10=250mA
Output noise spectral density
Output noise voltage
PG trip-threshold voHage
TJ
25°C
-40°C to 125°C
IpG= 1.2mA,
4.95
10
25°C
90
-40°C to 125°C
216
25°C
100
250
1
-40°C to 125°C
1.4
25°C
34
-40°C to 125°C
50
25°C
43
55
55
75
95
-40°C to 125°C
25°C
Q
mV
mV
135
-40°C to 125°C
25°C
42
-40°C to 125°C
36
25°C
36
-40°C to 125°C
34
53
dB
46
2
25°C
370
CO= lO I1F
25°C
290
CO= lOO I1F
25°C
168
I1V/VHz
I1VrmS
0.95 x
VO(nom)
25°C
50
25°C
0.2
-40°C to 125°C
mV
285
0.8
25°C
CO=4.7I1F
VI=4.12V
V
19
150
-40°C to 125°C
-40°C to 125°C
UNIT
30
25°C
Vo voltage decreasing from above VPG
MAX
4.85
4.75
25°C
PG hysteresis voltage
PG output low voltage
TPS7248Q
TYP
-40°C to 125°C
f= 120 Hz
10 Hz S f S 100 kHz,
CSRt=lQ
MIN
V
mV
0.4
0.4
V
t CSR refers to the total senes resistance, including the ESR of the capacitor, any senes resistance added externally, and PWB trace resistance
to CO.
:j: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
~TEXAS
2-124
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS7201Q,TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxV
MICROPOWER LOW.DROPOU!v~~~~tYR9~~~~;!!~~~~~!~~!
TPS7250Q electrical characteristics, 10 = 10 mA, VI = 6 V, EN = 0 V, Co = 4.7l!F (CSRt = 1 U), SENSE
shorted to OUT (unless otherwise noted)
TPS7250Q
PARAMETER
TEST CONDITIONS*
VI=6V,
10= 10 rnA
6V$Vp,10V,
5 mA$10$250 rnA
10=10mA,
VI =4.88V
10= 100 rnA,
VI =4.88V
10=250 rnA,
VI = 4.88 V
Pass-element series resistance
(4.88 V - VOl/IO,
10=250 rnA
VI =4.88 V,
Input regulation
VI=6Vt010V,
50 J!A $10 $ 250 rnA
10 = 5 rnA to 250 rnA,
6V$VI$10V
Output voltage
Dropout voltage
J!A to 250 rnA;
6V$VI$10V
10 = 50
Ripple rejection
J!A
f= 120 Hz
10=250 rnA
Output noise spectral density
Output noise voltage
PG trip-threshold voltage
f=120Hz
10Hz$f$100kHz,
CSRt=1 g
5.1
8
25°C
-40°C to 125°C
25°C
76
V
12
85
136
-40°C to 125°C
190
25°C
mV
206
312
-40°C to 125°C
0.76
25°C
0.825
g
1.25
25°C
28
-40°C to 125°C
35
46
25'C
-40°C to 125°C
59
-40°C to 125°C
mV
61
100
25°C
79
mV
150
25°C
41
-40°C to 125°C
37
25°C
36
-40°C to 125°C
32
52
dB
46
2
390
CO= 1O IlF
25°C
300
CO= 1OO IlF
25°C
175
-40°C to 125°C
0.95 x
VO(noml
25°C
50
25°C
0.19
-40'C to 125°C
UNIT
30
25°C
VI=4.25V
MAX
5
4.9
CO=4.7IlF
Vo voltage decreasing from above VPG
IPG= 1.2 rnA,
25°C
-40°C to 125°C
TYP
25°C
PG hysteresis voltage
PG output low voltage
MIN
-40°C to 125°C
Output regulation
10 = 50
TJ
IlV/,[Hz
IlVrms
V
mV
0.4
0.4
V
t CSR refers to the total series resistance, Including the ESR of the capacitor, any senes resistance added externally, and PWB trace resistance
to CO.
:j: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
-!11
TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS, TEXAS 75265
2-125
TPS7201Q,TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250QjTPS72xxY
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SlVS102F - MARCH 1995 - REVISED NOVEMBER 1998
=
electrical characteristics, 10 10 mA, EN
shorted to OUT (unless otherwise noted)
=0 V, Co =4.7 ~F (CSRt =1 0), TJ =25°C, SENSE/FB
PARAMETER
TEST CONomONs*
Ground current (active mode)
ENSO.5V,
OmASIOS250mA
VI=VO+ 1 V,
Output current limit threshold
VO=OV,
VI= 10V
MIN
TPS72xxY
TYP
MAX
UNIT
IJA
180
0.6
A
165
°C
EN hysteresis voltage
50
mV
Minimum VI for active pass element
1.9
V
1.1
V
Thermal shutdown junction temperature
Minimum VI for valid PG
IpG = 3001JA
=
=
electrical characteristics, 10 10 mA, EN 0 V, Co
OUT at device leads (unless otherwise noted)
PARAMETER
Reference voltage (measured at FB with OUT
connected to FB)
Pass-element series resistance (see Note 3)
=4.7 ~F (CSRt =10), TJ =25°C, FB shorted to
TEST CONomONs*
1.188
10= 10mA
VI=2.4V,§
50lJAS lOS 100 rnA
2.1
VI=2.4V,§
100mAS 10 s200 rnA
2.9
VI =2.9V,
50 IJA S 10 S 250 rnA
1.6
VI =3.9 V,
50
IJA S 10 S 250 rnA
50 IJA S 10 S 250 rnA
1
3VSVIS10V,
See Note 2
10 = 5 rnA to 250 rnA,
3VSVIS10V,
See Note 2
10 = 50 IJA to 250 rnA,
f=120Hz
VI = 3.5 V,
10HzSfS100kHz,
CSRt=1 n
Co =4.7I1F
PG hysteresis voltage'll
VI =3.5V,
Measured at VFB
PG output low voltage'll
VI=2.13V,
IpG =4001JA
FB input current
VI=3.5V
n
mV
50
VI = 3.5 V,
V
17
60
Output noise spectral density
UNIT
15
10 = 250 rnA,
See Note 2
VI = 3.5 V,
f=120Hz
MAX
0.8
10 = 50 IJA
Ripple rejection
Output noise voltage
TVP
VI =3.5 V,
VI =5.9V,
Output regulation
TPS7201V
MIN
2
dB
I1VNHZ
235
CO= 1O I1F
190
CO= 1OO I1F
125
12
I1Vrms
mV
0.1
V
0.1
nA
t CSR refers to the total series resistance, including the ESR of the capacitor, any series resistance added externally, and PWB trace resistance
to CO.
:j: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
§ This voltage is not recommended.
'II Output voltage programmed to 2.5 V with closed-loop configuration (see application information).
NOTES: 2 When VI < 2.9 V and 10> 100 rnA simultaneously, pass element rOS(on) increases (see Figure 10) to a point such thatthe resulting
dropout voltage prevents the regulator from maintaining the specified tolerance range.
3 To calculate dropout voltage, use equation:
VOO = 10' rOS(on)
rOS(on) is a function of both output current and input voltage. The parametric table lists rDS(on) for VI = 2.4 V, 2.9 V, 3.9 V, and
5.9 V, which corresponds to dropout conditions for programmed output voltages of 2.5 V, 3 V, 4 V, and 6 V, respectively. For other
programmed values, refer to Figures 10 and 11.
~TEXAS
INSTRUMENTS
2-126
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS7201Q,TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxY
MICROPOWER LOW.DROPOU!v~~R~tYR~~!~~~V~~D~~v~~!~~~
electrical characteristics, 10 =10 mA, EN =0 V, Co =4.7 flF (CSRt =1 il), TJ =25°C, FB shorted to
OUT at device leads (unless otherwise noted)
PARAMETER
TEST CONDITIONst
TPS7225Y
MIN
TYP
MAX
UNIT
Output voltage
VI = 3.5 V,
10=10mA
2.5
V
Dropout voltage
VI = 2.97 V,
10=250mA
560
mV
Pass-element series reSistance
(2.97 V - VOl/IO,
10=250mA
VI = 2.97 V,
2.24
a
VI=3.5Vt010V,
50 !LA s; 10 s; 250 mA
9
3.5VS;VIS;10V
10=5 mAt0250 mA
28
3.5VS;VI S; 10V
10 = 50 !1A to 250 mA
24
Ripple rejection
VI =3.5V,
f= 120 Hz
10= 50 !LA
58
10=250mA
46
Output noise spectral density
VI = 3.5 V,
f= 120 Hz
Co =4.7 IlF
248
Output noise voltage
VI =3.5 V,
10HzS;fS;100kHz,
CSRt=1 a
CO= 1O IlF
200
CO=100IlF
130
50
mV
IpG= 1.2mA
0.3
V
Input regulation
Output regulation
PG hysteresis voltage
VI =3.5V
PG output low voltage
VI =2.13V
2
mV
mV
dB
IlV/--JHz
IlVrms
t CSR refers to the total serias reSistance, including the ESR of the capacitor, any series resistance added externally, and PWB trace resistance
to CO.
:I: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken Into account separately.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS. TEXAS 75265
2-127
TPS7201Q,TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxY
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVSl 02F - MARCH 1995 - REVISED NOVEMBER 1998
electrical characteristics, 10 = 10 mA, EN = 0 V, Co = 4.7 ~F (CSRt = 1 n), TJ = 25°C, SENSE shorted
to OUT (unless otherwise noted) (continued)
PARAMETER
Output voltage
TEST CONDITIONst
VI = 3.75 V,
10=10mA
VI = 2.97 V,
10=10mA
VI = 2.97 V,
Dropout voltage
g
Pass-element series resistance
Input regulation
TBD
TBD
Output regulation
TBD
TBD
Ripple rejection
TBD
TBD
VI = 3.75 V,
10 Hz,;; I,;; 100 kHz,
CSRt= 1 g
Co =4.7 I1F
VI = 2.34 V,
mV
dB
I1VNHz
TBD
TBD
I1Vrms
TBD
VI = 3.75 V
tlowvoltage
mV
IpG=1.2mA
TBD
mV
TBD
V
t CSR relers to the total series reSistance, including the ESR 01 the capacitor, any series resistance added extemally, and PWB trace resistance
to CO.
:j: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
PARAMETER
Output voltage
Dropout voltage
Pass-element series resistance
Input regulation
Output regulation
Ripple rejection
Output noise spectral density
Output noise voltage
TEST CONDITIONS*
TPS7230Y
MIN TYP
MAX
UNIT
3
V
VI=4V,
10=10mA
VI = 2.97 V,
10= 100mA
145
VI = 2.97 V,
10=250mA
390
(2.97 V - VOl/IO,
10=250mA
VI = 2.97 V,
1.56
VI=4Vt010V,
50 I1A ,;; 10 ,;; 250 mA
9
4 V,;; VI ,;; 1'0 V
10 =5 mAto 250 mA
34
4V,;;VI';;10V
10 = 50 I1A to 250 mA
41
VI=4V,
1=120Hz
10 = 50 I1A
56
10 = 250 mA
45
VI=4V,
1= 120 Hz
VI=4V,
10 Hz,;; f,;; 100 kHz,
CSRt= 1 g
Co =4.7 I1F
256
CO= 1O I1F
206
CO= 1OO I1F
132
IpG= 1.2mA
0.25
PG hysteresis voltage
VI=4V
PG output low voltage
VI = 2.55 V
2
50
mV
g
mV
mV
dB
I1V/.,[Hz
I1VrmS
mV
V
t CSR relers to the total series resistance, including the ESR 01 the capacitor, any series resistance added externally, and PWB trace resistance
to CO.
:j: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
-!11
TEXAS
INSTRUMENTS
2-128
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS7201Q,TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxY
MICROPOWER LOW.DROPOU!v~~~~tYR~~!~~!v~~~~v~~!~~!
=
=
=
=
=
electrical characteristics, 10 10 mA, EN 0 V, Co 4.7 ~F (CSRt 1 0), TJ 25°C, SENSE shorted
to OUT (unless otherwise noted) (continued)
PARAMETER
Output voltage
TEST CONDITIONS*
TPS7233Y
MIN TYP
MAX
UNIT
V
VI = 4.3 V,
10=10mA
3.3
VI = 3.23 V,
10=10mA
14
VI = 3.23 V,
10=100mA
140
VI = 3.23 V,
10=250mA
360
(3.23 V - VOlIIO,
10 = 250 mA
VI = 3.23 V,
VI=4.3Vtol0V,
4.3V"VI,,10V,
50 I1A " 10 " 250 mA
10=5 mAto 250 mA
32
4.3V"VI,,10V,
10 = 50 I1A to 250 mA
41
Ripple rejection
VI =4.3V,
f= 120 Hz
10= 250 mA
Ou1pu1 noise spectral density
VI = 4.3 V,
f= 120 Hz
VI =4.3 V,
10Hz"f,,100kHz,
CSRt=lQ
CO= 4.7 I1F
265
CO= lO I1F
212
CO= l00I1F
135
IPG= 1.2mA
0.22
Dropout voltage
Pass-element series resistance
Inpu1 regulation
Output regulation
Ou1put noise voltage
PG hysteresis voltage
VI =4.3V
PG output low voltage
VI =2.8 V,
10 = 50
I1A
1.5
8
52
44
2
32
mV
Q
mV
mV
dB
I1V/..[Hz
I1Vrms
mV
V
t CSR refers to the total senes resistance, Including the ESR of the capaCitor, any senes resistance added extemally, and PWB trace resistance
to CO.
=1= Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
PARAMETER
Output voltage
Dropout voltage
Pass-element series resistance
TEST CONDITIONS=I=
TPS7248Y
MIN TYP
MAX
VI = 5.85 V,
10=10mA
4.85
VI =4.75 V,
10=10mA
10
VI = 4.75 V,
10= 100 mA
90
VI =4.75 V,
10 = 250 mA
216
(4.75 V - VOlIIO,
10 =250 mA
VI = 4.75 V,
0.8
43
UNIT
V
mV
Q
5.85 V" VI" 10 V
10 = 5 mA to 250 mA
5.85V"VI,,10V
10 = 50
Ripple rejection
VI =5.85 V,
f=120Hz
10 =5011A
53
10 = 250 mA
46
Outpu1 noise spectral density
VI =5.85 V,
f= 120 Hz
CO=4.7I1F
370
Output noise voltage
VI = 5.85 V,
10Hz"f,,100kHz,
CSRt=l Q
CO= 10l1F
290
CO= 100 l1F
168
50
mV
IpG= 1.2mA
0.2
V
Output regulation
PG hysteresis voltage
VI = 5.85 V
PG output low voltage
VI =4.12V
I1A to 250 mA
55
2
mV
dB
11V/..[Hz
I1Vrms
t CSR refers to the total series resistance, including the ESR of the capacitor, any series resistance added extemally, and PWB trace resistance
to CO.
=1= Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-129
TPS7201Q,TPS722SQ,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS72SOQ,TPS72xxY
~JS~£~2!!~~5~2~~~~~!2~!~LDO) VOLTAGE REGULATORS
=
=
=
=
=
electrical characteristics, 16 10 mA, EN 0 V, Co 4.7 fJ.F (CSRt 1 a), TJ 25°C, SENSE shorted
to OUT (unless otherwise noted) (continued)
PARAMETER
Output voltage
TEST CONDITIONst
TPS7250Y
MIN TYP
MAX
UNIT.
V
VI=6V,
10= 10 mA
5
VI = 4.88 V
10=10mA
8
VI = 4.88 V
10=100mA
76
VI = 4.88 V,
10=250mA
190
Pass-element series resistance
(4.88 V - VOl/IO,
10= 250 mA
VI = 4.88 V,
Input regulation
VI =6Vto 10V,
50 J.LA s 10 S 250 mA
6VSVIS10V,
10 = 5 mA to 250 mA
46
6VSVIS10V,
10 = 50 J.LA to 250 mA
59
Ripple rejection
VI=6V,
f=120Hz
10 = 50 J.LA
52
10=250mA
46
Output noise spectral density
VI=6V,
f=120Hz
VI=6V,
10HzsfS100kHz,
cSRt=1n
CO=4.7I1F
390
CO= 1O I1F
300
CO=100I1F
175
IpG=1.2mA
0.19
Dropout voltage
Output regulation
Output noise voltage
PG hysteresis voltage
VI=6V
PG output low voHage
VI = 4.25 V,
0.76
mV
n
mV
2
50
mV
dB
I1V/..JHz
I1Vrms
mV
V
t CSR refers to the total series resistance, including the ESR of the cepacitor, any series resistance added externally, and PWB trace resIstance
to CO.
:I: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken Into account separately.
~TEXAS
INSTRUMENTS
2-130
POST OFACE BOX 655303 • ·OALlAS, TEXAS 75265
TPS7201Q, TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxY
MICROPOWER LOW.DROPOUrv~~~~t~9~!~~~v~~~~v~~!~~!
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
IQ
Quiescent current
vs Output current
5
vs Input voltage
6
dlQt
Change in quiescent current
vs Free-air temperature
7
VDO
Dropout voltage
vs Output current
8
dVOO
Change in dropout voltage
vs Free-air temperature
VDO
Dropout voltage (TPS7201 only)
vs Output current
9
10
rDSlon)
Pass-element series resistance
vs Input voltage
11
dVO
Change in output voltage
vs Free-air temperature
12
Vo
Output voltage
vs Input voltage
13
Line regulation
vs Input voltage
14
Load regulation
(TPS7225, TPS7233, TPS7248, TPS7250)
vs Input voltage
15
VO(PG)
Power-good (PG) voltage
vs Output voltage
16
rDS(on)PG
Power-good (PG) on-resistance
vs Input voltage
17
VI
Minimum input voltage for valid PG
vs Free-air temperature
18
Output voltage response from enable (EN)
vsTIme
19
Load transient response (TPS7201/TPS7233)
vsTIme
20
Load transient response (TPS7248/TPS7250)
vsTime
21
Line transient response (TPS7201)
vsTime
22
Line transient response (TPS7233)
vsTIme
23
Line transient response (TPS72481TPS7250)
vsTIme
24
Ripple rejection
vs Frequency
25
Output Spectral Noise Density
vs Frequency
26
vs Output current (CO = 4.7 I1F)
27
vs Added ceramic capacitance (CO = 4.7I1F)
28
Compensation series resistance (CSR)
. .
vs Output current (CO = 10 11F)
29
vs Added ceramic capacitance (CO = 10 11F)
30
t This symbol IS not currently listed Within EIA or JEDEC standards for semiconductor symbology.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-131
TPS7201Q,TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxY
~JE~£~2~~9~5~2~~~~~!2~!9\LDO} VOLTAGE REGULATORS
TYPICAL CHARACTERISTICS
QUIESCENT CURRENT
vs
OUTPUT CURRENT
230
QUIESCENT CURRENT
vs
INPUT VOLTAGE
TA25°C
10 = 250 mA
220
C
"-I
j
C
CD
"-I
TPS7233 VI = 10 V =
190
TP~7250 VI ~ 10 V
J
I
.9
170
TPS7248 VI
=5.85 V
C
~:s
150
C
_
.;a
.9
I
TPS7250 VI = 6.0 V
160
~ 'TPS~250
50
TPS7233 VI = 4.3 V
50
100
150
200
10 - Output Current - mA
0
250
0
Figure 5
40
600
10=10mA
VI=VO+ 1 V
/
/~
I
C
30
U
20
I
10
i
c
a
/
/
0
.5
CD
Cl
c
.c
/
-10
I
a
/V
V
-40
-40 -20
0
20 40 60
80 100 120 140
TA - Free-Air Temperature - °C
10 - Output Current - mA
FigureS
Figure 7
~TEXAS
2-132
4
7
3
5
6
VI- Input Voltage - V
DROPOUT VOLTAGE
VB
OUTPUT CURRENT
50
"-
2
Figure 6
CHANGE IN QUIESCENT CURRENT
vs
FREE-AIR TEMPERATURE
c
TPS7201 With
Vo Programmed to 2.5 V -
~
100
I
..!..
J~p
~
U
8
,....
~~ " . ~
....:::~-~~
~~::::;:::::
C
200
180
I
TPS\3
200
210
Ia
J J TPS~48 V
250
T~7248 VI ~ 10 V
TA = 25°C
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 752115
8
9
10
TPS7201Q,TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxY
MICROPOWER LOW.DROPOU!v~~~~tYR~~1~~~~~~~Je~!~1~!
TYPICAL CHARACTERISTICS
TPS7201
DROPOUT VOLTAGE
vs
OUTPUT CURRENT
CHANGE IN DROPOUT VOLTAGE
vs
FREE-AIR TEMPERATURE
0.05
TJs~l
I r-./ VlI-
0.04
>
I
CD
0.03
CI
:!l!
~
'!i
TPS7233
~~
0.02
0
0.
e
0
0.01
.5
0
CD
c
~
I
-0.02
I
i
~~
~ TPS724S/TPS7250
..J~~
-0.01
0
1.41----+---+---+-- VI = 2.4 vt
V
CI
11
0
1.6....----,---.....---.---....,..--..,
,/~
~
1.21-----+---1---1-----+---1--1
VI =2.9V
I
VI =3.2V
~
'!i
O.SI-----I-
i
0.6
O
1----+-----1--~~~~~~
I
[Ii'
$
0.41----+---I-~,£_~~~~"-----1
'/
/
-0.04
-40 -20
50
0
20 40 60 80 100 120 140
TA - Free-Air Temperature - °C
CHANGE IN OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
PASS ELEMENT SERIES RESISTANCE
vs
INPUT VOLTAGE
15
6
Cl
TA=25°C
VFB = 1.12 V
I
I.!
I
CD
CI
3
\
i
C
1
0
.jg
2
~
-5
0
CD
..
\
CI
c
-10
"\'\
\
.c
0
I
~
5
UI
250
t This voltage is not recommended.
Figure 10
Figure 9
8c
150
200
100
10 - Output Current - mA
~
0
20 40 60
SO 100 120 140
TA - Free-Air Temperature - °C
Figure 12
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-133
TPS7201Q,TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxY
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS102F - MARCH 1995 - REVISED NOVEMBER 1998
TYPICAL CHARACTERISTICS
OUTPUT VOLTAGE
vs
INPUT VOLTAGE
5.5
I
TA = 25°C
10=250 mA
5
..
4
,
/1"
I
Cl
~
~
"$
.e::J
0
~
Cl
I
2
I
TPS7250
,
4.5
>
LINE REGULATION
25
I
4.5 5 5.5
'-r\'"
VI - Input Voltage - V
6 6.5 7 7.5 8 8.5 9 9.5 10
VI -Input Voltage - V
Figure 13
Figure 14
POWER-GOOD (PG) VOLTAGE
vs
OUTPUT VOLTAGEt
LOAD REGULATION
6
50
>
E
..
I
Cl
S
~
TA = 25°C
PG Pulled Up to VI With 5 kO Resistor
TA = 25°C
40
30
20
10
\
~
"$
0
~~
..
-10
l'
I
s::.
01
-20
I
-30
"$
ICI.
0
.5
Cl
C
TPS7233 ~
f--- TPS7225
0
0
~
, .......,.:
TPS7248 ---./
TP~7250 -
-40
-50
o
/
I
o
50
100
150
200
10 - Output Current - mA
Figure 15
92
250
94
95
96
Vo - Output Voltage - %
t Vo as a percent of VOnom.
Figure 16
~TEXAS
2-134
93
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
97
98
TPS7201Q,TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxY
MICRO POWER LOW.DROPOUrv~~2~tYR~~!~~~v~~~~~~!~~!
TYPICAL CHARACTERISTICS
MINIMUM INPUT VOLTAGE FOR VALID PG
vs
FREE·AIR TEMPERATURE
POWER·GOOD (PG) ON·RESISTANCE
vs
INPUT VOLTAGE
1.3
100
TA = 25°C
/
CJ
Do.
:2
-
j
1.125
V
~
1\
10
.2
1.12
V
GI
CJl
~
1.115
~
:i
a.
1.11
.5
E
:::I
E
'2 1.105
\
\
i
I
"
........ 10.....
1.5
2
1.1
>"
o
1
..........
2.5
3
3.5
4
VI- Input Voltage - V
4.5
I
........... r--
1.095
-40 -20
5
Figure 17
II
V
0
20 40 60 80 100 120 140
TA - Free·Alr Temperature - °C
Figure 18
OUTPUT VOLTAGE RESPONSE FROM
ENABLE (EN)
>
10 ~
J
TA = 25°C
CI=O
Co = 4.7 IlF (CSR = 10)
- 5 ~
lifi
o 1Vonom
.-
o
z
!!!..
->
A.
f-
t
/
/
I
V
50
t-Time-Ils
100
150
Figure 19
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-135
TPS7201 Q, TPS7225Q, TPS7228Q, TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxY
~JE~~~2~~~~~J!~~~~!2~rjLDO) VOLTAGE REGULATORS
TYPICAL CHARACTERISTICS
TPsnOl (WITH Vo PROGRAMMED TO 2.5 V), TPS7233
LOAD TRANSIENT RESPONSE
:e
200
t
100
I
~
i
0
~
IV
.5 -100
t
.c
(.)
f"
TA = 25°C
VI=6V
CI=O
CO= 4.7 I1F (CSR = 1 Q)
-200
I
~
6.25
~
6
a..
.5
I
CD
III
~
'S
I
;>
o
100
200
300
400
t-TIme-1IS
Figure 22
TPS7233
>
LINE TRANSIENT RESPONSE
E
I
CD
1
~
200
100
'S
t
0
0
.5
CD
III
C
01
-SO
(J
-100
.c
1\V.-
A..
~
TA = 25°C
CI=O
Co = 4.7 I1F (CSR = 1 0)
I
0
~
6.5
::;-
6.25
i_
6
o
5.75
100
200
300
400
500
~
I
.5
I
>"
t- Time-lIS
Figure 23
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-137
TPS7201Q,TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxY
~J~~~~2'£!~9~5~~~~~~~!g~!9\LDO) VOLTAGE REGULATORS
TYPICAL CHARACTERISTICS
,
TPS72481TPS7250
>
LINE TRANSIENT RESPONSE
E
I
CD
100
~
'S
a.
50
'S
.5
CD
~
11
(J
1\
0
0
I\.
I'
V
V
-50
TA = 25°C
CI=O
Co = 4.7!1F (CSR = 10)
-100
I
0
~
6.5
::;-
6.25
6
i_
~
i
.5
I
o
100
200
300
400
500
t-Tlme-/IS
Figure 24
RIPPLE REJECTION
OUTPUT SPECTRAL NOISE DENSITY
VB
VB
FREQUENCY
FREQUENCY
'a
TA = 25°C
No Input
I-+t'tHtN+Ht!IH~ Capacitance Added
VI=VO+ 1 V
=100 mA
= 4.7 I1F (CSR = 1 0)
I
11111111 1111111111 III
m
c
~
of
30
10
l!:>
I
.
TPS7201 With
-HtItflIl--t-'~1IH Vo Programmed
to 2.5 V
I 1111111 I 11111111
1\ Co = 4.7 I1F (CSR = 10)
I
Co = 10 I1F(CSR = 10)
CD
.!!!
z0
CD
a.
is:
,
.!l
II:
is.
\
::l.
~
c
TA=25°C
No Input capacitance Added
VI=VO+ 1 V
Iu
20
8.
~
0.1
1\
rn
'S
~
10
::..
0
o
10
100
1K
10 K
100 K
f - Frequency -
1M
10 M
Hz
Co = 100 I1F(CSR= 10)
I I I 111111 I I I 111111
0.01
10
100
1k
10k
f - Frequency - Hz
Figure 25
Figure 26
~1ExAs
2-138
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS, TEXAS 75265
100 k
TPS7201Q,TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxY
MICROPOWER LOW.DROPOU!v~~~~t~~~!~~~v~~~~v~~!~~~
TYPICAL CHARACTERISTICS
TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE (CSR)t
TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE (CSR)t
OUTPUT CURRENT
ADDED CERAMIC CAPACITANCE
vs
vs
100IlllF"'''''''''..........
Cl
Cl
Ij
8c
I
Ia
I
I
u
TA=25°C
VI =VO+1 V
10= 250 mA
Co =4.7 I1F
No Input Capacitor Added
I
10
j
a
E
8
0.1
I
0.1
I
a:
a:
f.l
f.l
100
50
150
0.01
250
200
o
0.1
10 - Output Current - mA
0.2 0.3 0.4 0.5
Figure 27
1
Figure 28
TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE (CSR)t
TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE (CSR)t
OUTPUT CURRENT
ADDED CERAMIC CAPACITANCE
vs
vs
Cl
Cl
Ii 10~~~~~~~~~~~
8c
I
I
1---+-
rn
TA = 25°C
V, = Vo + 1 V
~~~!~ Co
= 10 I1FCeramic Capacitance
No Added
I
-8c
~
0.6 0.7 0.8 0.9
Added Ceramic Capacitance -I1F
III
"Iii
J.
~c
0
.
i
No Input Capacitor Added
c
CD
0.
E
0.1
8
I
0.1
I
a:
~
rn
u
50
100
150
200
250
10 - Output Current - mA
0.1
0.2 0.3 0.4 0.5
0.6 0.7 0.8 0.9
1
Added Ceramic Capacitance - I1F
Figure 29
Figure 30
t CSR refers to the total series resistance, including the ESR olthe capacitor, any series resistance added externally, and PWB trace resistance
tOCQ.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-139
TPS7201Q,TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxY
~~E~?~2't'!~9~5 ~~~~~~9!2~!9\LDO) VOLTAGE REGULATORS
APPLICATION INFORMATION
The design of the TPS72xx family of low-dropout (LOO) regulators is based on the higher-current TPS71xx
family. These new families of regulators have been optimized for use in battery-operated equipment and feature
extremely low dropout voltages, low supply currents that remain constant over the full-output-current range of
the device, and an enable input to reduce supply currents to less than O.S ~ when the regulator is turned off.
device operation
The TPS72xx uses a PMOS pass element to dramatically reduce both dropout voltage and supply current over
more conventional PNP-pass-element LOO designs. The PMOS transistor is a voltage-controlled device that,
unlike a PNP transistor, does not require increased drive current as output current increases. Supply current
in the TPS72xx is essentially constant from no-load to maximum.
Current limiting and thermal protection prevent damage by excessive output current and/or power dissipation.
The device switches into a constant-current mode at approximately 1 A; further load increases reduce the output
voltage instead of increasing the output current. The thermal protection shuts the regulator off if the junction
temperature rises above 16SoC. Recovery is automatic when the junction temperature drops approximately SoC
below the high temperature trip point. The PM.OS pass element includes a back diode that safely conducts
reverse current when the input voltage level drops below the output voltage level.
A logic high on the enable input, EN, shuts off the output and reduces the supply current to less than O.S ~.
EN should be grounded in applications where the shutdown feature is not used.
Power good (PG) is an open-drain output signal used to indicate output-voltage status. A comparator circuit
continuously monitors the output voltage. When the output drops to approximately 9S% of its nominal regulated
value, the comparator turns on and pulls PG low.
Transient loads or line pulses can also cause activation of PG if proper care is not taken in selecting the input
and output capacitors. Load transients that are faster than S IJS can cause a signal on PG if high-ESR output
capacitors (greater than approximately 7 Q) are used. A 1-1JS transient causes a PG signal when using an output
capacitor with greater than 3.S Q of ESA. It is interesting to note that the output-voltage spike during the transient
can drop well below the reset threshold and still not trip if the transient duration is short. A 1-1JS transient must
drop at least SOO mV below the threshold before tripping the PG circuit. A 2-1JS transient trips PG at just 400 mV
below the threshold. Lower-ESR output capacitors help by reducing the drop in output voltage during a transient
and should be used when fast transients are expected.
A typical application circuit is shown in Figure 31.
~TEXAS
2-140
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS7201Q,TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxY
MICROPOWER LOW.DROPOUrV~~~~tYR~~!~~~V~~D~~V~~!91~
APPLICATION INFORMATION
TPS72xx
(see Note A)
5
6
C1
O.1IlF
4
2
PG ! - = - - - - . P G
IN
IN
250kn
SENSE
OUT 1--'-.....- -....... vo
EN
OUT
GND
3
----,I
I
I
CSR=HI
_ _ _ _ .JI
NOTE A. TPS7225, TPS7228t, TPS7230, TPS7233, TPS724B,
TPS7250 (fixed-voltage options).
t This device is in the product preview stage of development.
Please contact the local TI sales office for availability.
Figure 31. Typical Application Circuit
external capaCitor requirements
Although not required, a 0.047-J.lF to 0.1-J.lF ceramic bypass input capacitor, connected between IN and GND
and located close to the TPS72xx, is recommended to improve transient response and noise rejection. A
higher-value electrolytic input capacitor may be necessary if large, fast-rise-time load transients are anticipated
and the device is located several inches from the power source.
An output capaCitor is required to stabilize the internal feedback loop. For most applications, a 1O-J.lF to 1S-J.lF
solid-tantalum capacitor with a 0.5-0 resistor (see capaCitor selection table) in series is sufficient. The maximum
capacitor ESR should be limited to 1.3 a to allow for ESR doubling at cold temperatures. Figure 32 shows the
transient response of a SomA to 8S-mA load using a 10-J.lF output capacitor with a total ESR of 1.7 O.
A 4.7-J.lF solid-tantalum capacitor in series with a 1-0 resistor may also be used (see Figures 27 and 28)
provided the ESR of the capacitor does not exceed 1 a at room temperature and 2 a over the full operating
temperature range.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-141
TPS7201Q,TPS722SQ,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxY
~J~~~~2!~~5~~J!~~~09!2~!~LDO) VOLTAGE REGULATORS
APPLICATION INFORMATION
t-
, , . . . . . . • . • • . . . -1- . . . .
l
l
...
. +
...•.....................:j:. ...............
.
.
: \+
1-+ 1---1' .... : .... : .... : .. ·''!".bt-~~~~~~~'-i Vo
.
.
+
1....-1+·.;.·H++++t++++.l-+-H+1++-i++H+++++i-H-++l-i-H".
t··
t
.....i!~~I\.<\tI>~~~
. . ...,..t........
..... .,...
.
.
.
IO=85mA
f
.
't
, . • • • • • • . . • • • . . , ...J- . . . . • • . • . . • • . . . . . . • . . . •
.
Chl
50mV
Ch2
+
.
.
~~+~~~~~~~~~lo=5mA
....
,'i:
50mA
100 !1IIdlv
Figure 32. Load Transient Response (CSR total
=1.7 0). TPS7248Q
A partial listing of surface-mount capacitors usable with the TPS72xx family is provided below. This information
(along with the stability graphs, Figures 27 through 30) is included to assist the designer in selecting suitable
capacitors.
CAPACITOR SELECTION
PART NO.
MFR.
5920156X0020R2T
Sprague
5950156X0025C2T
Sprague
5950106X0025C2T
Sprague
SIZE (H x L xW)t
VALUE
MAX ESRt
151lF, 20 V
1.1
1.2 x 7.2 x 6
151lF, 25 V
1
2.5x7.1 x3.2
10 IlF, 25 V
1.2
2.5 x 7.1 x 3.2
2.5 x 7.6 x 2.5
t Size is In mm. ESR is maximum resistance in ohms at 100 kHz and TA = 25°C. listings are sorted by height.
6950106X0035G2T
Sprague
10 IlF, 35 V
1.3
sense-pin connection
SENSE must be connected to OUT for proper operation of the regulator. Norma"y this connection should be
as short as possible; however, remote sense may be implemented in critical applications when proper care of
the circuit path is exercised. SENSE intema"y connects to a high-impedance wide-bandwidth amplifier through
a resistor-divider network, and any noise pickup on the PCB trace will feed through to the regulator output.
SENSE must be routed to minimize noise pickup. Filtering SENSE using an RC network is not recommended
because of the possibility of inducing regulator instability.
~TEXAS
2-142
INSTRUMENTS
POST OFFICE BOX 855303 • DALlAS. TEXAS 75265
TPS7201Q,TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxY
MICROPOWER LOW.DROPOUrv~~~~t~~~!~~~v~~~~v~~!~~!
APPLICATION INFORMATION
output voltage programming
The output voltage of the TPS7201 adjustable regulator is programmed using an external resistor divider as
shown in Figure 33. The output voltage is calculated using:
V0
= V ref'
(1
+
~~)
(1)
Where
Vref = 1.188 V typ (the internal reference voltage)
Resistors R1 and R2 should be chosen for approximately 7-~ divider current. Lower value resistors can be
used but offer no inherent advantage and waste more power. Higher values should be avoided as leakage
currents at FB increase the output voltage error. The recommended design procedure is to choose
R2 = 169 kn to set the divider current at 7 ~ and then calculate R1 using:
R1 =
(V0_
V ref
1) . R2
(2)
OUTPUT VOLTAGE
PROGRAMMING GUIDE
OUTPUT
VOLTAGE
(V)
t
TPS7201
5
DIVIDER RESISTANCE
(kn)t
R1
VI
R2
2.5
191
169
3.3
309
169
>2.7 V
IN
PG
IN
0.111F
~
'±'
-
r-_......
Power-Good Indicator
OUT
4
EN
OUT
<0.4 V
3.6
348
169
4
402
169
5
549
169
GND
6.4
750
169
3
FB
1% values shown.
Figure 33. TPS7201 Adjustable LDO Regulator Programming
~ThxAs
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-143
TPS7201Q,TPS7225Q,TPS7228Q,TPS7230Q
TPS7233Q,TPS7248Q,TPS7250Q,TPS72xxY
~JP,~~~2'£!~9~5~2~~~~09J!~~!9~LDO) VOLTAGE REGULATORS
APPLICATION INFORMATION
power dissipation and junction temperature
Specified regulator operation is assured to a junction temperature of 125°C; the maximum junction temperature
allowable to avoid damaging the device is 150°C. These restrictions limit the power dissipation that the regulator
can handle in any given application. To ensure the junction temperature is within acceptable limits, calculate
the maximum allowable dissipation, PO(max), and the actual dissipation, Po, which must be less than or equal
to PO(max)'
The maximum-power-dissipation limit is determined using the following equation:
P
-
D(max) -
TJmax - TA
R.aJA
-"--=----!..!
Where
TJmax is the maximum allowable junction temperature, i.e.,150°C absolute maximum and 125°C
recommended operating temperature.
RaJA is the thermal resistance junction-to-ambient for the package, i.e., 172°CIW for the 8-terminal
SOIC and 238°CIW for the 8-terminal TSSOP.
TA is the ambient temperature.
The regulator dissipation is calculated using:
Power dissipation resulting from quiescent current is negligible.
regulator protection
The TPS72xx PMOS-pass transistor has a built-in back diode that safely conducts reverse currents when the
input voltage drops below the output voltage (e.g., during power down). Current is conducted from the output
to the input and is not internally limited. If extended reverse voltage is anticipated, external limiting might be
appropriate.
The TPS72xx also features internal current limiting and thermal protection. During normal operation, the
TPS72xx limits output current to approximately 1 A. When current limiting engages, the output voltage scales
back linearly until the overcurrent condition ends. While current limiting is designed to prevent gross device
failure, care should be taken not to exceed the power dissipation ratings of the package. If the temperature of
the device exceeds 165°C, thermal-protection circuitry shuts it down. Once the device has cooled, regulator
operation resumes.
~TEXAS
2-144
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS7301Q,TPS732SQ,TPS7330Q,TPS7333Q,TPS7348Q,TPS73S0Q
LOW·DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F -JUNE 1995- REVISED JANUARY 1999
o OR P PACKAGE
• Available in 2.5-V, 3-V, 3.3-V, 4.85-V, and 5-V
Fixed-Output and Adjustable Versions
• Integrated Precision Supply-Voltage
Supervisor Monitoring Regulator Output
Voltage
• Active-Low Reset Signal with 200-ms Pulse
Width
• Very Low Dropout Voltage ..• Maximum of
35 mVat 10 100 mA (TPS7350)
• Low Quiescent Current - Independent of
Load ..• 340 I1A Typ
• Extremely Low Sleep-State Current,
0.511A Max
• 2% Tolerance Over Full Range of Load,
Line, and Temperature for Fixed-Output
Versions§
(TOP VIEW)
G N D [ ] 8 RESET
EN
2
7 SENSEt/FB:I:
IN
3
6
OUT
IN
4
5
OUT
PWPACKAGE
(TOP VIEW)
=
GND
RESET
GND
NC
GND
NC
FB:I:
NC
• Output Current Range of 0 mA to 500 mA
• TSSOP Package Option Offers Reduced
Component Height For Critical Applications
EN
SENSEt
NC
OUT
IN
OUT
IN
NC
IN
NC
NC - No internal connection
t SENSE - Fixed voltage options only
description
The TPS73xx devices are members of a family of
(TPS7325, TPS7330, TPS7333, TPS7348, and TPS7350)
micropower low-dropout (LDO) voltage regulators.
:I: FB - Adjustable version only (TPS7301)
They are differentiated from the TPS71 xx and TPS72xx LDOs by their integrated delayed microprocessor-reset
function. If the precision delayed reset is not required, the TPS71 xx and TPS72xx should be considered.~
AVAILABLE OPTIONS
OUTPUT VOLTAGE
(V)
NEGATIVE-GOING RESET
THRESHOLD VOLTAGE (V)
PACKAGED DEVICES
TJ
MIN
-40°C to
125°C
TVP
MAX
MIN
TVP
MAX
SMALL
OUTLINE
(D)
PLASTIC DIP
(P)
TSSOP
(PW)
CHIP FORM
(V)
4.9
5
5.1
4.55
4.65
4.75
TPS73500D
TPS73500P
TPS73500PW
4.75
4.85
4.95
4.5
4.6
4.7
TPS73480D
TPS73480P
TPS73480PW
TPS7350Y
TPS7348Y
3.23
3.3
3.37
2.868
2.934
3
TPS73330D
TPS73330P
TPS73330PW
TPS7333Y
2.94
3
3.06
2.58
2.64
2.7
TPS73300D
TPS73300P
TPS73300PW
TPS7330Y
2.425
2.5
2.575
2.23
2.32
2.39
TPS73250D
TPS73250P
TPS73250PW
TPS7325Y
TPS73010D
TPS73010P
TPS73010PW
TPS7301Y
Adjustable
1.2 V to 9.75 V
1.101
1.123
1.145
The D and PW packages are available taped and reeled. Add an R SuffiX to device type (e.g., TPS73500DR). The TPS7301 0 IS programmable
using an external resistor divider (see application information). The chip form is tested at 25°C.
§The TPS7325 has a tolerance of ±3% over the full temperature range.
~ The TPS71 xx and the TPS72xx are 500-mA and 250-mA output regulators respectively, offering performance similarto that of the TPS73xx but
without the delayed-reset function. The TPS72xx devices are further differentiated by availability in 8-pin thin-shrink small-outline packages
(TSSOP) for applications requiring minimum package size.
~TEXAS
Copyright © 1999, Texas Instruments Incorporated
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-145
TPS7301Q,TPS732SQ,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
description (continued)
The RESET output of the TPS73xx initiates a reset in microcomputer and microprocessor systems in the event
of an undervoltage condition. An internal comparator in the TPS73xx monitors the output voltage of the regulator
to detect an undervoltage condition on the regulated output voltage.
.
If that occurs, the RESET output (open-drain NMOS) turns on, taking the RESET signal low. RESET stays low
for the duration of the undervoltage condition. Once the undervoltage condition ceases, a 200-ms (typ) time-out
begins. At the completion of the 200-ms delay, RESET goes high.
An order of magnitude reduction in dropout voltage and quiescent current over conventional LOO performance
is achieved by replacing the typical pnp pass transistor with a PMOS device.
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (maximum of 35 mV
at an output current of 100 rnA for the TPS7350) and is directly proportional to the output current (see Figure 1).
Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is low and remains
constant, independent of output loading (typically 340 JlA over the full range of output current, 0 rnA to 500 rnA).
These two key specifications yield a significant improvement in operating life for battery-powered systems.
The LOO family also features a sleep mode; applying a logic high signal to EN (enable) shuts down the regulator,
reducing the quiescent current to 0.5 JlA maximum at TJ = 25°C.
The TPS73xx is offered in 2.5-V, 3-V, 3.3-V, 4.85-V, and 5-V fixed-voltage versions and in an adjustable version
(programmable over the range of 1.2 V to 9.75 V). Output voltage tolerance is specified as a maximum of 2%
over line, load, and temperature ranges (3% for the 2.5 V and the adjustable version). The TPS73xx family is
available in POIP (8 pin), SO (8 pin) and TSSOP (20 pin) packages. The TSSOP has a maximum height of
1.2mm.
0.3
TPS73xxPwt
TA = 25°C
TPS7330
8
>
V I - _ - _ - - I IN
9
RESET
IN
SENSE
IN
OUT
EN
OUT
I
01
~
~
:i
0.11!F
0.15
8.
e
Q
15
10
GI
6
GND
0.1
20
To System
Reset
250 ItO
Va
----,I
I
I
CO*
+ 10l!F
CSR=1 g
_ _ _ _ oJ
t TPS7325, TPS7330, TPS7333, TPS7348, TPS7350 (fixed-voHage
50 100 150 200 250 300 350 400 450 500
10 - Output Current - mA
options)
* Capacitor selection is nontrivial. See application information
section for details.
Figure 1. Dropout Voltage Versus Output Current
Figure 2. Typical Application Configuration
~TEXAS
INSTRUMENTS
2-146
POST OFFICE BOX 655303 • OALLAS, TEXAS 75265
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
TPS73xxY chip Information
These chips, when properly assembled, display characteristics similar to those of the TPS73xxQ. Thermal
compression or ultrasonic bonding may be used on the doped aluminum bonding pads. Chips may be mounted
with conductive epoxy or a gold-silicon preform.
(5)
BONDING PAD ASSIGNMENTS
IN
EN
(3)
SENSEt
(6)
FB*
(2)
TPS73xx
(4)
(7)
OUT
RESET
(1)
GND
CHIP THICKNESS: 15 TYPICAL
BONDING PADS: 4 x 4 MINIMUM
T Jmax
=150°C
TOLERANCES ARE ±10%.
ALL DIMENSIONS ARE IN MILS.
t SENSE -
Fixed voltage options only (TPS7325, TPS7330,
TPS7333, TPS7348, and TPS7350)
:j: FB - Adjustable version only (TPS7301)
~14------------92----------~·1
1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1'1
NOTE A. For most applications, OUT and SENSE should
be tied together as close as possible to the device;
for other implementations, refer to SENSE'pin
connection discussion in the applications
information section of this data sheet.
functional block diagram
IN--------r-~----------~~--+_~--------,
RESISTOR DIVIDER OPTIONS
EN-----4I~
....------+-
RESET
i-----.... OUT
DEVICE
R1
TPS7301
TPS7325
TPS7330
TPS7333
TPS7348
TPS7350
0
260
358
420
726
756
R2
UNIT
00
Q
233
233
233
233
233
kQ
kQ
kQ
kQ
kQ
NOTE A. ReSistors are nominal values only.
, - - - SENSE§/FB
R1
R2
COMPONENT COUNT
MOS transistors
Bilpolar transistors
Diodes
Capacitors
Resistors
464
41
4
17
76
GND
§ For most applications, SENSE should be externally connected to OUT as close as possible to the device. For other implementations, refer to
SENSE-pin connection discussion in applications information section.
11 Switch positions are shown with EN low (active).
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-147
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
timing diagram
VI
V_ _ _\~I~~vres
v_.-1I,,-+-!_ _
Threshold
Voltage
Vo I
I
~~==-=-==-=-====-=~L ~f":_=_~_=-=_=_~_=-=_=_~_=-=_=_~_~
T
I
VIT-
I I
I j+---t!-
U-
200 ms
t Vres is the minimum input voHage for a valid RESET. The symbol Vres is not currently listed within EIA or JEDEC standa.rds
for semiconductor symbology.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)*
*
Input voltage range§, VI, RESET, SENSE, EN ........................................ -0.3 V to 11 V
Output current, 10 •.............•..........•.........................................•...... 2 A
Continuous total power dissipation ............................. See Dissipation Rating Tables 1 and 2
Operating virtual junction temperature range, T J .................................... -55°C to 150°C
Storage temperature range, Tstg ••••••••••••••••••••.•••••.••••••••••••••••.•••••• -65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds ............................... 260°C
Stresses beyond those listed under "absolute maximum ratings· may cause permanent damage to the device. These are stress ratings only. and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions· is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
§ All voltage values are with respect to network terminal ground.
~TEXAS
2-148
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS. TEXAS 75265
TPS7301Q,TPS732SQ,TPS7330Q,TPS7333Q,TPS7348Q,TPS73S0Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
DISSIPATION RATING TABLE 1 - FREE-AIR TEMPERATURE (SEE FIGURE 3)
PACKAGE
TAS25°C
POWER RATING
DERATING FACTOR
ABOVE TA 25°C
=
TA = 70°C
POWER RATING
=
TA 125°C
POWER RATING
D
725mW
5.BmWI"C
464mW
145mW
P
1175mW
9.4mWI"C
752mW
235mW
pwt
700mW
5.6mWI"C
44BmW
140mW
DISSIPATION RATING TABLE 2 - CASE TEMPERATURE (SEE FIGURE 4)
PACKAGE
t
TCS25°C
POWER RATING
DERATING FACTOR
ABOVE TC = 25°C
TC = 70°C
POWER RATING
TC= 125°C
POWER RATING
1248mW
D
p
2188mW
9.4mWI"C
1765mW
2738mW
21.9mWI"C
1752mW
54BmW
pwt
4025mW
32.2mW/oC
2576mW
B05mW
Refer to Thermal Information section for detailed power dissipation considerations when using the
TSSOP package.
MAXIMUM CONTINUOUS DISSIPATION
vs
FREE-AIR TEMPERATURE
;=
MAXIMUM CONTINUOUS DISSIPATION
vs
CASE TEMPERATURE
1400
E
I
c
I
1/1
::I
8c
i
8
E
::I
~
:II
Q
11.
TA - Free-Air Temperature - °C
Figure 3
TC - Case Temperature - °C
Figure 4
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-149
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
recommended operating conditions
Inputvottage, Vlt
MIN
MAX
TPS73D1Q
2.47
10
TPS7325Q
3.1
10
TPS73300
3.5
10
TPS7333Q
3.77
10
TPS7348Q
5.2
10
TPS73500
5.33
10
High-level input voltage at EN, VIH
Output current range, 10
Operating virtual junction temperature range, TJ
..
V
V
V
V
2
Low-level input voltage at EN, VIL
UNIT
0.5
V
0
500
rnA
-40
125
°C
t Mlmmum Input voltage defined In the recommended operating conditIOns IS the maximum specified output voltage plus dropout voltage, VOO,
at the maximum specified load range. Since dropout voltage is a function of output current, the usable range can be extended for lighter loads.
To calculate the minimum input voltage for the maximum load current used in a given application, use the following equation:
VI (min) = VO(max) + VOO(maxload)
Becausethe TPS7301 is programmable, rOS(on) should be used to calculate VOObeforeapplyingtheaboveequation. Theequatlonforcalculating
VOO from rOS(on) is given in Note 2 in the TPS7301 electrical characteristics table. The minimum value of 2.97 V is the absolute lower limit for
the recommended input voltage range for the TPS7301.
-!111EXAS
2-150
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F -JUNE 1995- REVISED JANUARY 1999
=
electrical characteristics at 10 10 rnA, EN
OUT (unless otherwise noted)
PARAMETER
=0 V, Co =4.71LF (CSR* =1 Q), SENSE/FB shorted to
TEST CONDITIONS§
Ground current (active mode)
EN s; 0.5 V,
o mAs; 10 S;500 mA
Input current (standby mode)
EN=VI,
2.7VS;VIS;10V
Output current limit
VO=OV,
VI=10V
Pass-element leakage current in standby
mode
EN=VI,
2.7VS;VIs;10V
RESET leakage current
Normal operation,
Vat RESET = 10V
TJ
MIN
25°C
VI=VO+1 V,
25°C
0.01
1.2
25°C
-40°C to 125°C
25°C
0.01
0.02
0.5
0.5
61
75
165
6VS;VI S; 10V
2.7VS;VIS;10V
-40°C to 125°C
25°C
0.5
-40°C to 125°C
0.5
OVS;VIS;10V
-40°C to 125°C
-0.5
25°C
0.001
25°C
-40°C to 125°C
0.5
0.5
2.05
-40°C to 125°C
10(RESET) = -300 l1A
A
l1A
l1A
ppmFC
2.5
2.5
1
V
mV
50
-0.5
IlA
V
2.7
25°C
l1A
°C
2
25°C
Minimum VI for active pass element
Minimum VI for valid RESET
0.5
1
-40°C to 125°C
EN hysteresis voltage
EN input current
2
2
-40°C to 125°C
UNIT
0.5
2
-40°C to 125°C
-40°C to 125°C
2.5 VS;VI s;6V
EN logic low (active mode)
400
550
Thermal shutdown junction temperature
EN logic high (standby mode)
MAX
340
-40°C to 125°C
25°C
Output voltage temperature coefficient
TYP
1.5
1.9
l1A
V
V
:j: CSR (compensation senes resistance) refers to the total senes reSistance, Including the eqUivalent senes resistance (ESR) olthe capacitor, any
series resistance added externally, and PWB trace resistance to Co.
§ Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken Into account separately.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-151
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
=
=
=
=
=
TPS7301 Q electrical characteristics at 10 10 rnA, VI 3.5 V, EN 0 V, Co 4.7 J.lF (CSRt 1 0), FB
shorted to OUT at device leads (unless otherwise noted)
PARAMETER
TEST CONDITIONst
TJ
MIN
Reference voltage (measured at FB)
2.5 V ~ VI ~ 10 V,
See Note 1
5
mA~ 10~500
mA,
Reference voltage temperature
coefficient
50 J.tA ~ 10 ~ 150 mA
VI = 2.4 V,
150 mA~ 10~500 mA
VI = 2.4 V,
Pass-element series resistance
(See Note 2)
Input regulation
75
25°C
0.7
1
0.83
1.3
0.52
0.85
25°C
1.3
-40°C to 125°C
25°C
25°C
0.32
VI=5.9V,
50 J.tA ~ 10 ~ 500 mA
25°C
0.23
50
J.tA ~ 10 ~ 500 mA,
25°C
3
2.5 V ~ VI ~ 10 V,
See Note 1
10 = 5 mA to 500 mA,
2.5 V ~ VI ~ 10 V,
See Note 1
10 = 50
-40°C to 125°C
10 Hz ~f
~
100 kHz
RESET trip-threshold voltage§
VO(FB) decreasing
RESET hysteresis voltage§
Measured at VO(FB)
25°C
RESET output low voltage§
VI=2.13V,
5
25°C
7
25°C
46
-40°C to 125°C
44
25°C
45
-40°C to 125°C
44
2
95
Co = 10 I1F
25°C
89
Co=10011F
25°C
74
12
25°C
0.1
-40°C to 125°C
-10
-20
mV
I1Vnns
0.1
V
mV
0.4
0.4
25°C
mV
I1V1VHz
1.145
1.101
25°C
-40°C to 125°C
mV
dB
54
25°C
t
0
59
Co =4.7I1F
FB input current
22
54
25°C
10(RESET) = 400 J.tA
14
25
-40°C to 125°C
-40°C to 125°C
18
25
-40°C to 125°C
f=120Hz
ppmfOC -
0.85
-40°C to 125°C
VI = 2.5 V to 10 V,
See Note 1
f= 120Hz
V
1
-40°C to 125°C
50 J.tA ~ 10 ~ 500 mA
10=500mA,
See Note 1
Output noise voltage
61
J.tA to 500 mA,
UNIT
V
-40°C to 125°C
VI = 3.9 V,
J.tA
MAX
1.217
50 J.tA ~ 10 ~ 500 mA
10 = 50
Output noise-spectral density
1.147
VI=2.9V,
Output regulation
Ripple rejection
-40°C to 125°C
TYP
1.182
25°C
10
20
V
nA
CSR refers to the total series reSistance, Including the ESR of the capacitor, any senes resistance added externally, and PWB trace resistance
toCo·
:1= Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thennal effects must
be taken into account separately.
§ Output voltage programmed to 2.5 V with closed-loop configuration (see application information).
NOTES: 1. When VI < 2.9 V and 10 > 150 mAsimultaneously, pass element rOS(on) increases (see Figure 33) toa point where the resulting
dropout voltage prevents the regulator from maintaining the specified tolerance range.
2. To calculate dropout voltage, use equation: VOO = 10 . rOS(on)
rOS(on) is a function of both output current and input voltage. This parametric table lists rOS(on) for VI = 2.4 V, 2.9 V, 3.9 V, and
5.9 V, which corresponds to dropout conditions for programmed output voltages of 2.5 V, 3 V, 4 V, and 6 V respectively. For other
programmed values, refer to Figure 33.
~TEXAS
INSTRUMENTS
2-152
POST OFFICE BOX 655303 • DALLAS. TEXAS 75?65
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
TPS7325Q electrical characteristics at 10 = 10 mA, VI =3.5 V, EN =0 V, Co = 10 IlF (CSRt = 1 a), SENSE
shorted to OUT (unless otherwise noted)
PARAMETER
Output voltage
3.5 VSVp. 10V,
5 mAS 10 S 500 mA
10=10mA,
VI =2.97V
10= loomA,
VI = 2.97 V
10 = 500 mA,
VI = 2.97 V
Pass-element series resistance!!
(2.97 V - VO)nO,
10 = 500 mA
VI = 2.97 V,
Input regulation
VI=3.5Vtol0V,
50 JlA S 10 S 500 mA
10 = 5 mA to 500 mA,
3.5VSVI S 10V
10 = 50 JlA to 500 mA,
3.5 V S VI S 10 V
Dropout voltage§
10= 50 JlA
f=120Hz
10 = 500 mA
Output noise-spectrel density
Output noise voltage
RESET trip-threshold voltage
RESET output low voltage
MIN
TYP
MAX
2.45
2.5
2.55
-40·C to 125·C
2.425
25·C
VI =2.1 V,
50
-40·C to 125·C
25·C
270
0.5
6
25·C
-40·C to 125·C
0.7
20
25
25·C
20
-40·C to 125·C
32
50
25·C
28
-40·C to 125·C
60
100
25·C
50
-40·C to 125·C
49
25·C
49
-40·C to 125·C
32
mV
mV
mV
dB
53
2
274
Co = IOIlF
25·C
228
Co = IOO IlF
25·C
159
2.23
n
53
25·C
-40·C to 125·C
400
1.4
Co =4.7IlF
10(RESET) = -0.8 mA
mV
600
25·C
25·C
80
150
-40·C to 125·C
-40·C to 125·C
V
14
25·C
25·C
Vo decreasing
UNIT
5
-40·C to 125·C
f=120Hz
10HzsfSIOOkHz
2.575
-40·C to 125·C
Output regulation
Ripple rejection
TJ
25·C
TEST CONDITIONst
IlVNHz
IlVrms
2.32
2.39
0.14
0.4
0.4
V
V
t
CSR refers to the total series resistance, Including the ESR of the capacitor, any series resistance added extemally, and PWB trece resistance
to Co.
Pulse-testing techniques are used to maintain virtual junction tempereture as close as possible to ambient tempereture; thermal effects must
be taken into account separetely.
§ Dropout test and pass-element series resistanca test are not production tested. Test method requires SENSE terminal to be disconnected from
output voltage.
*
~1ExAs
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS, TEXAS 75265
2-153
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
=
=
=
=
=
TPS7330Q electrical characteristics at 10 10 mA, VI 4 V, EN 0 V, Co 4. 7J.lF (CSRt 1 0), SENSE
shorted to OUT (unless otherwise noted)
PARAMETER
Output voltage
TEST CONDITIONS*
4VSVIS10V,
5 mAS loS500mA
10=10mA,
VI = 2.94 V
10= l00mA,
VI =2.94V
10 = 500 mA,
VI = 2.94 V
Pass-element series resistance
(2.94 V - VO)II0,
10 = 500 mA
VI = 2.94 V,
Input regulation
VI =4 Vto 10V,
50 IlA S 10 S 500 mA
10 =5 mAt0500 mA,
4VSVp.l0V
10 = 50 IlA to 500 mA,
4VSVIS10V
Dropout voltage
10= 501lA
f=120Hz
10=500mA
Output noise-spectral density
-40°C to 125°C
RESET trip-threshold voltage
RESET output low voltage
VI=2.6V,
2.94
3.06
5.2
52
25°C
267
25°C
-40°C to 125°C
0.5
25°C
6
-40°C to 125°C
450
0.7
23
29
20
25°C
-40°C to 125°C
32
60
25°C
28
-40°C to 125°C
60
120
25°C
43
-40°C to 125°C
40
25°C
39
-40°C to 125°C
36
g
mV
mV
dB
53
2
Co = IO I1F
25°C
228
Co=10011F
25°C
159
2.58
mV
53
274
-40°C to 125°C
mV
1
25°C
10(RESET) = -0.8 mA
75
500
25°C
25°C
V
7
100
-40°C to 125°C
-40°C to 125°C
UNIT
10
25°C
Vo decreasing
MAX
3
25°C
f=120Hz
10HzSfSl00kHz
TYP
-40°C to 125°C
Co =4.7I1F
Output noise voltage
MIN
-40°C to 125°C
Output regulation
Ripple rejection
TJ
25°C
I1V/VHz
I1Vrms
2.64
2.7
0.14
0.4
0.4
V
V
t CSR refers to the total senes reSistance, Including the ESR of the capaCItor, any senes resistance added externally, and PWB trace resistance
to Co.
:j: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
-!I11EXAS
2-154
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS7301Q,TPS732SQ,TPS7330Q,TPS7333Q,TPS7348Q,TPS73S0Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
TPS7333Q electrical characteristics at 10 = 10 rnA, VI = 4.3 V, EN = 0 V, Co = 4.7 fJ.F (CSRt = 1 Q),
SENSE shorted to OUT (unless otherwise noted)
PARAMETER
Output voltage
TEST CONDITIONs*
4.3 V S VI S 10 V,
5 mAS 10 S 500 rnA
10=10mA,
VI = 3.23 V
10= 100 rnA,
VI =3.23V
10 = 500 rnA,
VI =3.23V
Pass-element series resistance
(3.23 V - VOlIIO,
10= 500 rnA
VI = 3.23 V,
Input regulation
VI = 4.3 V to 10 V,
50 IlA S 10 S 500 rnA
Dropout voltage
Output regulation
10 = 50 IlA to 500 rnA, 4.3 V S VI S 10 V
10= 50 IlA
f=120Hz
10= 500 rnA
Output noise-spectral density
-40°C to 125°C
RESET trip-threshold voltage
RESET output low voltage
t
4.5
7
44
60
-40°C to 125°C
80
25°C
235
0.44
25°C
6
25°C
0.6
23
29
-40°C to 125°C
21
25°C
-40°C to 125°C
38
75
31
25°C
60
120
-40°C to 125°C
25°C
43
-40°C to 125°C
40
25°C
39
-40°C to 125°C
36
0
mV
mV
mV
51
dB
49
2
274
Co = 10l1F
25°C
228
Co=10011F
25°C
159
I1V/VHz
I1Vrms
2.868
V
25°C
18
25°C
0.17
-40°C to 125°C
mV
300
0.8
25°C
10(RESET) = -1 rnA
V
400
-40°C to 125°C
-40°C to 125°C
UNIT
8
25°C
Vo decreasing
VI =2.8V,
3.37
3.23
25°C
RESET hysteresis voltage
MAX
3.3
25°C
f= 120 Hz
10HzSfS100kHz
TYP
-40°C to 125°C
Co =4.7 I1F
Output noise voltage
MIN
-40°C to 125°C
10 = 5 rnA to 500 rnA, 4.3 V S VI S 10 V
Ripple rejection
TJ
25°C
mV
0.4
0.4
V
CSR refers to the total series resistance, Including the ESR of the capacitor, any series resistance added externally, and PWB trace resistance
to Co.
Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
*
~TEXAS
INSTRUMENTS
POST OFFICE SOX 655303 • DALLAS, TEXAS 75265
2-155
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
=
TPS7348Q electrical characteristics at 10 10 rnA, VI
SENSE shorted to OUT (unless otherwise noted)
PARAMETER
=5.85 V, EN =0 V, Co =4.7 J.LF (CSRt =1 a),
TEST CONomoNst
TJ
MIN
25°C
Output voltage
5.85 V s Vp; 10 V,
5 mASIOS500mA
10=10mA,
VI=4.75V
10= l00mA,
VI =4.75 V
10=500mA,
VI=4.75V
Pass-element series reSistance
(4.75 V - VOlIIO,
10 = 500 mA
VI = 4.75 V,
Input regulalion
VI =5.85 Vlo 10V,
50 IlA s 10 S 500 mA
Dropout voltage
Output regulation
10 = 50 IlA 10 500 mA, 5.85 Vs VI S 10 V
10 =501lA
f=120Hz
10 = 500 mA
Output noise-spectral density
,
Output noise voltage
RESET trip-threshold voltage
10HzSfSl00kHz
2.9
25°C
28
25°C
25°C
150
-40°C to 125°C
0.28
25°C
9
-40°C 10 125°C
0.37
35
37
25°C
28
-40°C 10 125°C
42
80
42
25°C
-40°C to 125°C
65
130
25°C
42
-40°C to 125°C
39
25°C
39
-40°C to 125°C
35
n
mV
mV
mV
53
dB
50
2
25°C
410
Co = lO I1F
25°C
328
Co =l00I1F
25°C
212
4.5
I1vNHZ
I1Vrms
4.7
25°C
26
25°C
0.2
-40°C to 125°C
mV
180
0.52
Co = 4.7 I1F
10(RESET) =-1.2 mA,VI = 4.12 V
37
250
25°C
-40°C to 125°C
V
6
54
25°C
Vo decreasing
UNIT
8
-40°C to 125°C
RESET hysteresis voltage
RESET output low voltage
4.95
4.75
-40°C to 125°C
f= 120 Hz
MAX
4.85
-40°C 10 125°C
10 =5 mAio 500 mA, 5.85 VSVI S 10V
Ripple rejection
-40°C to 125°C
TYP
V
mV
0.4
0.4
V
t CSR refers to the total series resistance, Including the ESR of the capacitor, any series resistance added externally, and PWB trace resistance
to Co.
:I: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken Into account separately.
~TEXAS
2-156
INSTRUMENTS
POST OFFICE SOX Il55303 • DALlAS. TEXAS 76265
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F -JUNE 1995 - REVISED JANUARY 1999
TPS7350Q electrical characteristics atiO = 10 mA, VI = 6 V, EN = 0 V, Co = 4.71J.F (CSRt = 1 Q), SENSE
shorted to OUT (unless otherwise noted)
PARAMETER
Output vOltage
TEST CONDITIONs*
6VSVp;10V,
5 mA';; '0';; 500 mA
'0=10mA,
V,=4.B8V
10= 100mA,
V,=4.B8V
10=500mA,
V, = 4.88 V
Pass-element series resistance
(4.88 V - VO)1I0,
10 = 500 mA
V, = 4.88 V,
Input regulation
V,=6Vt010V,
50 11A,;; '0';; 500 mA
10 = 5 mA to 500 mA,
6VSV,S10V
10 = 50 I!A to 500 mA,
6V,;;v,S10V
Dropout voltage
10 = 50 I1A
f=120Hz
'0=500mA
Output noise-spectral density
-40°C to 125°C
RESET trip-threshold voltage
RESET output low voltage
t
4.9
5.1
2.9
6
27
35
50
-40°C to 125°C
146
25°C
-40°C to 125°C
25°C
0.27
4
25°C
25°C
30
-40°C to 125°C
0.35
25
45
86
45
25°C
65
140
-40°C to 125°C
25°C
43
-40°C to 125°C
38
25°C
41
-40°C to 125°C
36
Q
mV
mV
mV
53
dB
51
2
430
Co = 10llF
25°C
345
Co = 100IlF
25°C
220
4.55
IlV/VHz
IlVrms
4.75
25°C
28
25°C
0.15
-40°C to 125°C
170
45
25°C
10(RESET) = -1.2 mA, V, = 4.25 V
mV
0.5
-40°C to 125°C
-40°C to 125°C
V
230
25°C
Vo decreasing
UNIT
8
25°C
RESET hysteresis voltage
MAX
5
25°C
f=120Hz
10HzsfS100kHz
TYP
-40°C to 125°C
Co =4.7IlF
Output nOise voltage
MIN
_40°C to 125°C
Output regulation
Ripple rejection
TJ
25°C
V
mV
0.4
0.4
V
CSR refers to the total series resistance, including the ESR of the capacitor, any series resistance added externally, and PWB trace resistance
to Co.
Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
*
~tEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-157
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
switching characteristics
PARAMETER
TEST CONDITIONS
RESET time-out delay
See Figure 5
=
electrical characteristics at 10 10 mA, EN
shorted to OUT (unless otherwise noted)
TJ
TPS7301Q,TPS7333Q
TPS7348Q,TPS7350Q
MIN
TYP
25°C
140
200
-40°C to 125°C
100
260
300
ms
=0 V, Co =4.7 f.l.F (CSRt =1 il), TJ =25°C, SENSE/FB
PARAMETER
TEST CONDITIONIN
TPS7301 V, TPS7333Y
TPS7348Y,TPS7350Y
MIN
Ground current (active mode)
UNIT
MAX
TYP
UNIT
MAX
ENSO.5V,
o mA,; 10 ,; 500 mA
VI=VO+1 V,
340
j1A
0.01
j1A
Input current (standby mode)
EN=VI,
2.7V,;VI,;10V
Output current limit
VO=OV,
VI=10V
Pass-element leakage current in standby mode
EN=VI,
2.7VSVp;10V
0.Q1
j1A
RESET leakage current
Normal operation,
Vat RESET = 10 V
0.02
j1A
Thermal shutdown junction temperature
EN logic low (active mode)
OVSVIS10V
10(RESET) = -300 j1A
t
°C
0.5
2.7V,;Vls10V
Minimum VI for active pass element
Minimum VI for valid RESET
A
165
EN hysteresis voltage
EN input current
1.2
V
50
mV
0.001
j1A
2.05
V
1
V
CSR (compensation senes resistance) refers to the total senes resistance, Including the equivalent series resistance (ESR) of the capacitor, any
series resistance added extemally, and PWB trace resistance to Co.
:j: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
~TEXAS
INSTRUMENTS
2-158
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
=
=
=
TPS7301Y electrical characteristics at 10 10 mA, VI 3.5 V, EN 0 V, Co
TJ = 25°C, FB shorted to OUT at device leads (unless otherwise noted)
PARAMETER
TEST CONDITIONst
Reference voltage (measured at FB)
Input regulation
Output regulation
TVP
50 IlA s 10 S 150 rnA
150 mAs 10 S 500 rnA
0.83
VI=2.9V.
50llAS IOS500 rnA
0.52
VI =3.9V.
50 IlA S; 10 S 500 rnA
0.32
VI =5.9V.
50 IlA S; 10 S; 500 rnA
0.23
VI=2.5Vt010V.
See Note 1
50llAS 10S;500 rnA.
2.5 VS;VI S 10V.
See Note 1
10= 5 rnA to 500 rnA.
2.5 V S; VI S; 10 V.
SeeNote 1
10 = 50 IlA to 500 rnA.
f=120Hz
Output noise-spectral density
f=120Hz
10HzS;fS;1OOkHz
RESET hysteresis voltage§
Measured at VO(FB)
RESET output low voltage§
VI=2.13V.
MAX
UNIT
V
0.7
VI =2.4V.
Ripple rejection
Output noise voltage
MIN
1.182
VI = 2.4 V.
Pass-element series resistance (See Note 2)
=4.71lF (CSRt =1 Q),
n
3
mV
5
mV
7
mV
10=501lA
59
10 = 500 rnA.
See Note 1
54
2
dB
/1V/,JHz
95
Co =4.7/1F
Co =10/1F
89
Co=10011F
74
10(RESET) = 400 IlA
0.1
V
0.1
nA
12
FB input current
/1Vrms
mV
t CSR refers to the total senes resistance. Including the ESR of the capacitor. any senes resistance added externally. and PWB trace resistance
to Co.
:I: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
§ Output voltage programmed to 2.5 V with closed-loop configuration (see application information).
NOTES: 1. When VI < 2.9 V and 10 > 150 rnA simultaneously. pass element rOS(on) increases (see Figure 33) to a point where the resulting
dropout voltage prevents the regulator from maintaining the specified tolerance range.
2. To calculate dropout voltage. use equation: Voo = 10 . rOS(on)
rOS(on) is a function of both output current and input voltage. The parametric table lists rOS(on) for VI = 2.4 V. 2.9 V. 3.9 V. and
5.9 V. which corresponds to dropout conditions for programmed output voltages of 2.5 V. 3 V. 4 V. and 6 V respectively. For other
programmed values. refer to Figure 33.
~1ExAs.
INSTRUMENTS
POST OFFICE BOX 655303 • OALlAS. TEXAS 75285
2-159
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F -JUNE 1995 - REVISED JANUARY 1999
TPS7325Y electrical characteristics at 10 =10 mA, VI =3.5 V, EN
TJ 25°C, SENSE shorted to OUT (unless otherwise noted)
=
PARAMETER
=0 V, Co =10 lJ.F (CSRt =1 il),
TEST CONDITIONs*
Output voltage
MIN
TYP
2.5
MAX
UNIT
V
10= lOrnA,
VI = 2.97 V
10= 100 rnA,
VI=2.97V
50
10 =500 rnA,
VI =2.97V
270
Pass-element series reslstance§
(2.97 V - VOl/IO,
10 = 500 rnA
VI = 2.97 V,
Input regulation
VI = 3.5 Vto 10 V,
50 IIA S 10 S 500 rnA
6
mV
10= 5 rnA to 500 rnA,
3.5VSVI S 10V
20
mV
10 = 50 IIA to 500 rnA,
3.5VSVIS10V
28
mV
10 =5011A
53
10=500mA
53
Dropout voltage§
Output regulation
Ripple rejection
Output noise-spectral density
Output noise voltage
RESET output low voltage
f= 120Hz
f=120Hz
10Hzsfsl00kHz
VI = 2.1 V,
5
0.5
2
Co=4.7~F
274
Co=10~F
228
Co=100~F
159
IQ(RESETt= -0.8 rnA
t
0.14
mV
0
dB
~V/VHz
~Vrms
V
CSR refers to the total series resistance, Including the ESR of the capacitor, any senes resistance added externally, and PWB trace resistance
to Co.
Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
§ Dropout test and pass-element series resistance test are not production tested. Test method requires SENSE terminal to be disconnected from
output voltage.
*
~TEXAS
INSTRUMENTS
2-160
POST OFFICE BOX 655303 • OALLAS. TEXAS 75265
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW·DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
=
=
TPS7330Y electrical characteristics at 10 10 mA, VI 4 V, EN
TJ = 25°C, SENSE shorted to OUT (unless otherwise noted)
PARAMETER
=0 V, Co =4.71lF (CSRt =1 n),
MIN
TEST CONDITIONS*
Output voltage
TYP
MAX
UNIT
V
3
5.2
10=10mA,
VI =2.94V
10=100mA,
VI =2.94V
52
10=500mA,
VI=2.94V
267
Pass-element series resistance
(2.94 V - VOl/IO,
10=500mA
VI = 2.94 V,
Input regulation
VI=4Vtol0V,
50 IIA S 10 S 500 mA
10 = 5 mA to 500 mA,
4VSVI S 10V
20
mV
10 = 50 IIA to 500 mA,
4VSVIS10V
28
mV
10 = 50 IIA
53
10= 500 mA
53
Co =4.7ILF
274
Co = lO ILF
228
Co =1001LF
159
Dropout voltage
Output regulation
Ripple rejection
1=120Hz
Output noise-spectral density
1=120Hz
Output noise voltage
n
0.5
mV
6
dB
2
10 Hz SIS 100 kHz
RESET output low voltage
mV
VI =2.6V,
ILV/VHZ
ILVrms
0.14
10(RESET) = -0.8 mA
V
t CSR relers to the total series resistance, including the ESR 01 the capacitor, any series resistance added extemally, and PWB trace resistance
to Co.
:j: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
=
=
TPS7333Y electrical characteristics at 10 10 mA, VI 4.3 V, EN
T J 25°C, SENSE shorted to OUT (unless otherwise noted)
=
PARAMETER
=0 V, Co =4.71lF (CSRt =1 n),
TEST CONDITIONS*
Output voltage
MIN
TYP
3.3
MAX
UNIT
V
4.5
10=10mA,
VI = 3.23 V
10= 100mA,
VI=3.23V
44
10 = 500 mA,
VI=3.23V
235
Pass-element series resistance
(3.23 V - VOllIO,
10=500 mA
VI = 3.23 V,
Input regulation
VI =4.3 Vto 10V,
50 IIA S 10 S 500 mA
6
mV
10 = 5 mAto 500 mA,
4.3VSVIS10V
21
mV
10 = 50 IIA to 500 mA,
4.3 V S VI S 10 V
31
mV
10= 5011A
51
10 =500 mA
49
Co =4.7ILF
274
Co = lOILF
228
Co = 100ILF
159
Dropout voltage
Output regulation
Ripple rejection
1= 120Hz
Output noise-spectral density
1= 120 Hz
Output noise voltage
10Hzsfsl00kHz
0.44
2
RESET hysteresis voltage
18
RESET output low voltage
0.17
VI =2.8V,
10(RESETl = -1 mA
mV
n
dB
ILV/VHZ
ILVrms
mV
V
t
CSR refers to the total senes resistance, Including the ESR of the capacitor, any senes resistance added extemally, and PWB trace resistance
to Co.
:j: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-161
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F -JUNE 1995 - REVISED JANUARY 1999
TPS7348Yelectricai characteristics at 10
=10 mA, VI =5.85 V, EN =0 V, Co =4.71lF (CSRt =1 Q),
TJ = 25°C, SENSE shorted to OUT (unless otherwise noted)
PARAMETER
TEST CONDITIONs*
Output voltage
MIN
TYP
4.85
10= 10 rnA,
VI=4.75V
10=100mA,
VI=4.75V
28
10 = 500 mA,
VI =4.75 V
150
Pass-element series resistance
(4.75 V - Vo)/lo,
10= 500 mA
VI = 4.75 V,
Input regulation
VI = 5.85 Vto 10V,
50 IIA S 10 S 500 mA
10 = 5 mA to 500 mA,
5.85 VSVI S 10 V
10 = 50 IIA to 500 mA,
Dropout voltage
MAX
UNIT
V
2.9
0.28
mV
a
9
mV
28
mV
5.85 VSVI S 10V
42
mV
10 = 50 IIA
53
10=500mA
50
Co =4.7jlF
410
Co = 10jlF
328
Co =100jlF
212
RESET hysteresis voltage
26
mV
RESET output low voltage
VI=4.12V
0.2
V
Output regulation
Ripple rejection
f= 120 Hz
Output noise-spectral density
f=120Hz
Output noise voltage
10Hzsfs100kHz
10(RESET) = -1.2 rnA,
2
t
dB
jlVNHz
jlVrms
CSR refers to the total series resistance, including the ESR of the capacitor, any series reSistance added extemally, and PWB trace resistance
to Co.
:I: Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
~TEXAS
2-162
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
..
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
TPS7350Y electrical characteristics at 10 = 10 rnA, VI = 6 V, EN
TJ = 25°C, SENSE shorted to OUT (unless otherwise noted)
PARAMETER
= 0 V, Co = 4.7/!F (CSRt = 1 Q),
TEST CONDITIONS*
Output voltage
TYP
MAX
5
VI =4.88 V
10=I00mA,
VI =4.88 V
27
35
10 = 500 mA,
VI =4.88 V
146
170
Pass-element series resistance
(4.88 V - VOlIIO,
10=500mA
VI = 4.88 V,
0.27
0.35
Input regulation
VI=6Vtol0V,
50 j.tA s: 10 s: 500 mA
4
25
10 =5 mAt0500 mA,
6VS:VIS:l0V
28
75
10 = 50 j.tA to 500 mA,
6VS:VIS:l0V
41
Output regulation
Ripple rejection
Output noise-spectral density
Output noise voltage
f= 120 Hz
10 = 50 j.tA
53
10=500mA
51
Co = 4.7 I!F
430
Co = 10l!F
345
Co =I00I!F
220
f= 120 Hz
10 HzS:fS:l00kHz
6
VI = 4.25 V
0.15
n
mV
mV
dB
I!v/VRZ
I!Vrms
mV
28
10(RESET) = -1.2 mA,
mV
mV
2
RESET hysteresis voltage
RESET output low voltage
2.9
UNIT
V
10=10mA,
Dropout voltage
t
MIN
0.4
V
CSR refers to the total senes resistance, Including the ESR of the capacitor, any senes resistance added externally, and PWB trace resistance
to Co.
Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.
*
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-163
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F -JUNE 1995- REVISED JANUARY 1999
PARAMETER MEASUREMENT INFORMATION
r--
O.1I1F ;:::
r:
IN
RESET
EN
SENSE
OUT
Reset
1
Vo
-!
? f=::1 OI1F
GND
1
CSR
l
TEST CIRCUIT
VOLTAGE WAVEFORMS
Figure 5. Test Circuit and Voltage Waveforms
IN
To Load
OUTt--..~,.--~
+ Co
--Ecer
t
RL
CSR
L--.__*-______
~~-
t Ceramic capacitor
Figure 6. Test Circuit for Typical Regions of Stability (Refer to Figures 29 through 32)
~1EXAS
INSTRUMENTS
2-164
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
TYPICAL CHARACTERISTICS
Table of Graphs
IQ
Quiescent current
IQ
Quiescent current
IQ
Quiescent current
VDO
Dropout voltage
TPS7348
TPS7325
vs Output current
7
vs Input voltage
8
vs Free-air temperature
vs Input voltage
9
10
vs Free-air temperature
11
vs Output current
12
vs Free-air temperature
13
vs Output current
14
I1VDO
Change in dropout voltage
Voo
Dropout voltage
I1VO
Change in output voltage
vs Free-air temperature
15
Output voltage
vs Input voltage
16
TPS7325
vs Input voltage
17
TPS7301
vs Output current
19
TPS7325
vs Output current
20
Vo
.
Vo
Output voltage
TPS7301
18
Line regulation
Vo
Output voltage
TPS7330
vs Output current
21
TPS7333
vs Output current
22
TPS7348
vs Output current
23
TPS7350
vs Output current
24
Output voltage response from enable (EN)
Load transient response
25
TPS7301 or TPS7333
26
TPS7325
27
TPS7348 or TPS7350
28
TPS7301
29
TPS7333
30
TPS7348 or TPS7350
31
Ripple rejection
vs Frequency
32
Output spectral noise density
vs Frequency
33
vs Output current
34
vs Added ceramic capacitance
35
vs Output current
36
vs Added ceramic capacitance
37
Co =4.7 IIF
Compensation series resistance
(CSR)
C o = 10 1lF
rDSlonl
Pass-element resistance
vs Input voltage
38
VI
Minimum input voltage for valid RESET
vs Free-air temperature
39
VIT-
Negatlve-golng reset threshold
vs Free-air temperature
40
IOL(RESEn
RESET output current
vs Input voltage
41
I(j
Reset time delay
vs Free-air temperature
42
I(j
Distribution for reset delay
43
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-165
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW·DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
TYPICAL CHARACTERISTICS
QUIESCENT CURRENT
vs
OUTPUT CURRENT
---
450
TA = 25°C
450
0(
:::I.
I
C
C
~
:s
375
0
350
.;
325
§
a
TPS7333, VI = 4.3 V
I
i
C
250
••
a
I
I
9
300
11
275
I
I
I
I
I
100
150
200
o
50
0.,
o
o
250
lu
If
"
150
50
{
2
3
/
I
400
:s
0
·1
300
/
9
250
200
-50
7
6
8
9
10
/
/
/
V
V
0(
:::I.
I
~:s
400
C
350
0
f.!
.~:s
a,
9
300
250
0
25
50
75
100
125
4
TA - Free-Air Temperature - °C
Figure 9
5
6
7
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
8
VI- Input Voltage - V
Figure 10
~TEXAS
2-166
5
450
V
/'
-25
4
500
450
a,
~th V~
" TPS7301
Programmed to 2.5 V 1 -
TPS7325
QUIESCENT CURRENT
vs
INPUT VOLTAGE
I
0(
:::I.
350
I I
Figure 8
VI = 5.85 V
10=500mA
C
TPS7348
TPS7350 r--
VI -Input Voltage - V
TPS7348
QUIESCENT CURRENT
vs
FREE-AIR TEMPERATURE
~
><:
J
Figure 7
C
A. ~
~~
10 - Output Current - mA
500
~ ~~~
y
100
TPS7330, VI = 4 V
TPS7325, VI = 3.5 V
I
350
200
TPS7348, VI = 5.85 V -
.....
,., --::::: ~
TPS7333
300
21
I
9
I
400
0
TPS7350, VI = 6 V
C
TA = 25°C
10=500mA
TPS73xx, VI = 10 V -
400
I
500
I
425
0(
:::I.
QUIESCENT CURRENT
vs
INPUT VOLTAGE
9
10
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
TYPICAL CHARACTERISTICS
TPS7325
QUIESCENT CURRENT
DROPOUT VOLTAGE
vs
vs
FREE-AIR TEMPERATURE
500
l
OUTPUT CURRENT
0.3 r---r--.,.-r--r---r-,---r---r-,-...,
_I
IL=750mA
c(
::I.
~
I
C
~
VI=10~
400
CJ
§
350
G
I
>
.
I
J
300
VI=3~
9
250
200
-50
/"
~
V
/
.!!
::I
V
/"
::I
C
TPS7330
L
450
V
V
-25
0
'S
V
/
i
V
25
50
75
100
125
50 100 150 200 250 300 350 400 450 500
TA - Free-Air Temperature - °C
10 - Output Current - mA
Figure 11
Figure 12
TPS7301
DROPOUT VOLTAGE
CHANGE IN DROPOUT VOLTAGE
vs
vs
FREE-AIR TEMPERATURE
10
>
E
I
G)
OJ
.:!!
6
~
4
'S
0
2
e
0
a.
c
.5
&
c
.!
CJ
8
>
/
/
V
t
~
/
'S
0.8 t----+-
I
0.61-----+---+----tT."...,,--t~~--I
c
I
$
V
-25
1.2t---t---t---+----t------J'-l
I
/
-4
-8
/
V
-2
-6
V
OUTPUT CURRENT
1.6.----.,.--...,.--,.------r--.....,
0
25
50
75
100
125
0.4 t---+---+-----;;;"c-~""""_'dl!o!""'--::::;I
0.2~~B.
O~o 100 150 200 250
TA - Free-Air Temperature - °C
Figure 13
10 - Output Current - rnA
Figure 14
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-167
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
TYPICAL CHARACTERISTICS
OUTPUT VOLTAGE
vs
INPUT VOLTAGE
CHANGE IN OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
6
20
>
TA=25°C
10=500mA
VI = VO(nom) + 1 V
10= 100mA
15
E
I
III
I
10
~
>
I
-
5
0
J
f
I
~
2.5
>
I
&
t1
vl100lmA
/
2
~
E
~mA
"\
I
j
10
~
S
5
!0
1.5
S
.5
I
c
III
aI
0
6
~
~
2.51
III
=
~
'S
Co
~
I
~
>
,-
I
!
2.515
2.505
2.5 ~
2.495
2.51
I
t
2.505
'S
2.5
~
_VI=3.5V
!
~
VI=10V
2.48
2.48
100
200
400
300
500
o
100
10 - Output Current - mA
3.34
=
TA = 25°C
3.33
>
8.
III
'S
3
~
!
0
V
./
!
"-
f'./
~
i'S
"
2.97
I
~
2.94
'"
2.91
2.88
2.85
3.32
I
3.06
3.03
I
J_
3.09
S
500
OUTPUT VOLTAGE
VB
OUTPUT CURRENT
3.12 f- TA=25°C
I
,
TPS7333
TPS7330
OUTPUT VOLTAGE
VB
OUTPUT CURRENT
>
200
400
300
10 - Output Current - mA
i
Figure 20
Figure 19
3.15
\
VI=3.5V
2.485
-
l' ~
2.49
2.485
o
===-
2.495
Jl
2.49
VI=10V
!,L
o
0
I
~
3.31
3.3
200
300
400
10 - Output Current - mA
500
~
3.29
3.28
3.27
3.26
100
:~ ___ VI=10V
o
Figure 21
100
200
300
400
500
10 - Output Current - mA
Figure 22
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-169
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
TYPICAL CHARACTERISTICS
TPS7348
TPS7350
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
5.06
4.92
_I
4.91
5.04
4.9
>
I
Q)
4.89
>
4.88
Q)
DI
!0
>
"5
a.
"5
0
I
~
4.87
4.86
4.85
5.03
I
5.02
DI
""'"'-....
"-
Vi:;: S.8S V
!
:!l
5.01
~
4.99
I
4.98
5
"5
0
VI = 10 V
4.84
~
4.83
4.96
4.81
4.95
o
4.94
100
200
300
400
,
~
VI=6V
r"---l.
VI=10V
4.97
4.82
4.8
.!
5.05 I- TA=25°C
TA = 25°C
500
o
100
200
Figure 23
Figure 24
OUTPUT VOLTAGE RESPONSE FROM
ENABLE (EN)
~.
VO(nom) -
J"'"
I
V
TA = 25°C
RL = 500 Q
Co = 4.711F (CSR = 10)
No Input Capacitance
6
4
~
2
&
!
~
o lifi
o
-2
20
40
60
80 100 120 140
TIme-lUI
Figure 25
~TEXAS
2-170
300
10 - Output Current - mA
10 - Output Current - mA
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
400
500
TPS7301Q,TPS732SQ,TPS7330Q,TPS7333Q,TPS7348Q,TPS73S0Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F-JUNE 1995- REVISED JANUARY 1999
TYPICAL CHARACTERISTICS
TPS7301 (WITH Vo PROGRAMMED TO 2.5 V) OR TPS7333
LOAD TRANSIENT RESPONSE
=e
I
200
-...~
100
~
I
o
.5 -100
J
'"
'"
f-'
TA=25°C
VI=6V
CI=O
Co = 4.7 J.1F (CSR = 1 0)
-200
c
I
~
E
100
I
III
I
50
~
i
0
.5
-50
II
0
f
II
.c -100
CJ
I
aJo=lOOmA _
VI=6V
CI=O
Co = 10 J.1F
TA=25°C
0-150
~
-
-200
-250
I
-300 -200 -100
0
100 200
~_
I
300 400 500
600
t-Tlme-J.1S
Figure 27
-!I1TEXAS
INSTRUMENTS
POST OFFICE BOX e55303 • DALLAS. TEXAS 75265
2-171
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SlVS124F - JUNE 1995 - REVISED JANUARY 1999
TYPICAL CHARACTERISTICS
TPS7348 OR TPS7350
~
LOAD TRANSIENT RESPONSE
I
200
~
100
t
g
'S
0
c
I ~:::
,,,
I
f"
,
VI=6V
CI=O
Co =4.7I1F
CSR=10
TA = 25°C
I
~
I
'
I
GI
6.25
6
J
~
'S
a-
.5
I
o
100
200
300
I-Tlme-IUI
Figure 29
~TEXAS
2-172
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
5.75
400
:>
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
TYPICAL CHARACTERISTICS
TPS7333
LINE TRANSIENT RESPONSE
>
E
I
G>
CI
1l!
200
~
100
~
0
:;
0
.5
G>
CI
c
01
.c
0
\rV
I\..
V
-50
TA = 25°C
CI=O
Co = 4.71!F (CSR = 10)
-100
I
~
'
6.5
::;-
6.25
i_
6
!
t-TIme-11lI
Figure 30
TPS7348 OR TPS7350
LINE TRANSIENT RESPONSE
>
E
I
G>
CI
1l!
100
~
50
~
0
:;
0
.5
G>
CI
\
V
-50
c
11
0
I\.
r
V
TA=25°C
CI=O
Co = 4.7 I!F (CSR = 10)
-100
I
~
'
t-TIme-11lI
Figure 31
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • OALLAS, TEXAS 75265
2-173
TPS7301Q,TPS732SQ,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
TYPICAL CHARACTERISTICS
RIPPLE REJECTION
OUTPUT SPECTRAL·NOISE DENSITY
vs
vs
FREQUENCY
FREQUENCY
'a
TA = 25°C
No Input
50 t-+f+HllN+tt/llll-++tttt capacitance Added
VI=VO+ 1 V
10=1oomA
= 4.711F (CSR = 1)
I
11111111 I IIIIII~ I II
III
i
30 l-+t+HllH-+l+lIIII-+W
10
l!
\.
::I.
I
I
TPS7301 With
Vo Programmed
to 2.5 V
Co=10I1F(CSR=1 il)
~
!
20 I-+HttlIH+tttflll-lrttt
1\
0.1
J
101-+t+HllH-+l+lIIII-+t+
0 ................................................
10
100
1K
10 K
100 K
1M
1~lil~rI1~111111I I
l\ Co = 4.711F (CSR =1 il)
,
);
II:
;
=
TA 25°C
No Input capacitance Added
Co
0.01
10
10 M
=100 I1F (CSR = 1 il)
I 11111111
100
f - Frequency - Hz
10 k
1k
100k
f - Fraquency - Hz
Figure 32
Figure 33
TYPICAL REGIONS OF STABILITY
TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE (CSR)t
COMPENSATION SERIES RESISTANCE (CSR)t
vs
vs
OUTPUT CURRENT
ADDED CERAMIC CAPACITANCE
c:
c:
I
3c
I
TA = 25°C
I-..,--,-=--t- VI = Vo + 1 V
iI
1
1
I
U
I 11111111
~~-+__~lo=~OmA
Co 4.711f
No Input Capacitor Added
=
II:
:I
"C
~
c
B.
E
BI
0.1
I
~
0.1
II:
til
CJ
50
0.01
200
100
o
0.1
0.6 0.7 0.8 0.9
Figure 35
Figure 34
~lEXAS
2-174
0.2 0.3 0.4 0.5
Added Ceramic Capacitance -I1F
10 - Output Currant - mA
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
1
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
TYPICAL CHARACTERISTICS
TYPICAL REGIONS OF STABILITY
TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE (CSR)t
vs
OUTPUT CURRENT
COMPENSATION SERIES RESISTANCE (CSR)t
vs
ADDED CERAMIC CAPACiTANCE
100 ..._
c:::
8
IJ
O
TA=25°C
VI=VO+ 1 V
10=500mA
Co = 10 11F
9
I
i
......_
~
J
~~~~~
10
~!~~~~N~o~ln~p~ut~c!ap~a~cl~to~r!Ad~d~ed~!
J
VI=VO+1 V
15
Co=101tF
No Added Ceremlc Cepacltance
No Input Cepacltor Added
I
!
8E
0.1
I
0.1
I
a:
~
~
100
50
150
200
250
0.1
0.2 0.3 0.4 0.5
Figure 36
MINIMUM INPUT VOLTAGE FOR VALID RESET
vs
FREE-AIR TEMPERATURE
1.1
>
TA=25°C
VI(FB)=1.12V
C
~
iii
i
I
I
e
1.1
I
I
ti
I
I
ffia:
0.9
J
1.09
:!:!
;i
0.8
0.7
.f.
10 =500 mA
./
~
0.6
I
1.08
J
~
0.5
\\
0.4
"
0.2
!
,.- 10 = 100 mA
~
0.3
:::I
~
~
./
1.06
/
V
/
/
/
i
I
0.1
3
1.07
.5
E
:>
2
1
Figure 37
PASS-ELEMENT RESISTANCE
vs
INPUT VOLTAGE
c:::
0.6 0.7 0.8 0.9
Added Ceramic Capacitance - I1F
10 - Output Current - mA
4
5
6
7
8
VI - Input Voltage - V
9
10
1.05
-50
-25
Figure 38
0
25
50
75
100
TA - Free·Air Temperature - °C
125
Figure 39
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-175
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
TYPICAL CHARACTERISTICS
NEGATIVE·GOING RESET THRESHOLD
vs
FREE·AIR TEMPERATURE
RESET OUTPUT CURRENT
vs
INPUT VOLTAGE
4
15
>
E
I
10
!!
0
V
r.
II
r.
5
l-
V
-"
I
II:
0
g'
'0
c;J
.~
-5
.
'&i
01
Z
I
/
/
V
V
/
J
IL=10mA
VOL S 0.4 V
TA = 25°C
3.5
c(
E
I
3
I
C
~
:I
0
15
!0
Ii
2.5
'f
1.5
I
I
.....
.9
-10
.l
0.5
-15
-50
-25
0
25
50
75
100
0
125
J
I
2
I
;>
/
0
'-- TPS7350
'--~
2
TA - Free·Air Temperature - °C
Figure 40
-
~PSb48
'!PS7~33
3
4
5
6
7
VI- Input Voltage - V
8
9
10
Figure 41
RESET DELAY TIME
vs
FREE·AIR TEMPERATURE
DISTRIBUTION FOR RESET DELAY
50
197
45
196
'"
E
I
195
CD
E
j::
>-
ic
1i
194
193
'"
""", "'-
Jr
~
I
192
191
190
-50
-25
30
'0
25
CD
01
~ ..............
--
0
25
50
75
100
TA - Free·Alr Temperature _DC
35
~
c
:;)
"-
CD
II:
I
40
~
~
CD
Il.
125
20
15
10
5
0
180
190
195
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
200
1cI- Reset Delay TIme - ms
Figure 43
Figure 42
2-176
185
205
210
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
THERMAL INFORMATION
In response to system-miniaturization trends, integrated circuits are being offered in low-profile and fine-pitch
surface-mount packages. Implementation of many of today's high-performance devices in these packages requires
special attention to power dissipation. Many system-dependent issues such as thermal coupling, airflow, added heat
sinks and convection surfaces, and the presence of other heat-generating components affect the power-dissipation
limits of a given component.
Three basic approaches for enhancing thermal performance are illustrated in this discussion:
•
•
•
Improving the power-dissipation capability of the PWB design
Improving the thermal coupling of the component to the PWB
Introducing airflow in the system
Figure 44 is an example of a thermally enhanced PWB layout for the 20-lead TSSOP package. This layout involves
adding copper on the PWB to conduct heat away from the device. The RaJA (thermal resistance, junction-to-ambient)
for this component/board system is illustrated in Figure 45. The family of curves illustrates the effect of increasing
the size of the copper-heat-sink surface area. The PWB is a standard FR4 board (L x W x H = 3.2 inch x 3.2 inch
x 0.062 inch); the board traces and heat sink area are 1-oz (per square foot) copper.
Figure 46 shows the thermal resistance for the same system with the addition of a thermally-conductive compound
between the body of the TSSOP package and the PWB copper routed directly beneath the device. The thermal
conductivity for the compound used in this analysis is 0.815 W/m x °C.
USing these figures to determine the system RaJA allows the maximum power-dissipation limit to be calculated with
the equation:
TJ(max) - T A
PO(max) = RSJA(system)
Where
TJ(max) is the maximum allowable junction temperature; 150°C absolute maximum and 125°C
maximum recommended operating temperature for specified operation.
This limit should then be applied to the internal power dissipated by the TPS73xx regulator. The equation for
calculating total internal power dissipation of the TPS73xx is:
PO(total) = (V, - VO) x '0
+ V,
'a
x
Because the quiescent current of the TPS73xx family is very low, the second term is negligible, further simplifying
the equation to:
PO(total)
= (V,
- VO) x '0
For a 20-lead TSSOP/FR4 board system with thermally conductive compound between the board and the device
body, where TA = 55°C, airflow = 100 ft/min, and copper heat sink area = 1 cm 2, the maximum power-dissipation limit
can be calculated. As indicated in Figure 46, the system RaJA is 94°CIW; therefore, the maximum power-dissipation
limit is:
= TJ(max)
P
O(max)
- TA
R.SJA(system)
= 125°C -
55°C
940C/W
= 745
W
m
If the system implements a TPS7348 regulator where VI = 6 V and 10 = 150 rnA, the internal power dissipation is:
PO(total)
= (V,
- VO) x
'0
= (6 -
4.85) x 0.150
= 173
mW
-!I1lExAs
INSTRUMENTS
POST OFFICE BOX 655303 • OALlAS, TEXAS 75265
2-1n
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F -JUNE 1995 - REVISED JANUARY 1999
THERMAL INFORMATION
Comparing PO(total) with PO(max) reveals that the power dissipation in this example does not exceed the maximum
limit. When it does, one of two corrective actions can be taken. The power-dissipation limit can be raised by increasing
either the airflow or the heat-sink area. Alternatively, the internal power diSSipation of the regulator can be lowered
by reducing either the input voltage or the load current. In either case, the above calculations should be repeated with
the new system parameters.
L __ ,
, ___ ..1
L ________ .J
Figure 44. Thermally Enhanced PWB Layout (not to scale) for the 2o-Pin TSSOP
THERMAL RESISTANCE, JUNCnON-TQ-AMBIENT
THERMAL RESISTANCE, JUNCnON-TQ-AMBIENT
vs
vs
AIRFLOW
190 ,...---,--....,..--...---...,.....----,.---,
AIRFLOW
~ 190r---...----..--........-~--.---,
§J
I
Component/Board System
2D-Leed TSSOP
i
:a
i
Component/Board System
2D-Lead TSSOP
170 Includes Thermally Conductive
Compound Between Body and Board
~
I
f
)
70r---~---+----r----r--~--~
I
}
50~-~-~--~-~-~-~
o
50
100
150
200
250
300
J~:§~~
I
}
50L
0
Air Flow - ft/min
100
150
200
Air Flow - ft/mln
Figure 45
2-178
50
Figure 46
:II
TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS. TEXAS 75265
250
300
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
APPLICATION INFORMATION
The TPS73xx series of low-dropout (LDO) regulators overcome many of the shortcomings of earlier generation
LDOs, while adding features such as a power-saving shutdown mode and a supply-voltage supervisor. The
TPS73xx family includes five fixed-output voltage regulators: the TPS7325 (2.5 V), TPS7330 (3 V), TPS7333
(3.3 V), the TPS7348 (4.85 V), and the TPS7350 (5 V). The family also offers an adjustable device, the TPS7301
(adjustable from 1.2 V to 9.75 V).
device operation
The TPS73xx, unlike many other LDOs, features very low quiescent currents that remain virtually constant even
with varying loads. Conventional LDO regulators use a pnp-pass element, the base current of which is directly
proportional to the load current through the regulator (IB Id~). Close examination of the data sheets reveals
that such devices are typically specified under near no-load conditions; actual operating currents are much
higher as evidenced by typical quiescent current versus load current curves (see Figure 7). The TPS73xx uses
a PMOS transistor to pass current; because the gate of the PMOS element is voltage driven, operating currents
are low and invariable over the full load range. The TPS73xx specifications reflect actual performance under
load.
=
Another pitfall associated with the pnp-pass element is its tendency to saturate when the device goes into
dropout. The resulting drop in ~ forces an increase in IB to maintain the load. During power-up, this translates
to large start-up currents. Systems with limited supply current may fail to start up. In battery-powered systems,
it means rapid battery discharge when the voltage decays below the minimum required for regulation. The
TPS73xx quiescent current remains low even when the regulator drops out, thus eliminating both problems.
Included in the TPS73xx family is a 4.85-V regulator, the TPS7348. DeSigned specifically for 5-V cellular
systems, its 4.85-V output, regulated to within ± 2%, allows for operation within the low-end limit of 5-V systems
specified to ± 5% tolerance; therefore, maximum regulated operating lifetime is obtained from a battery pack
before the device drops out, adding crucial talk minutes between charges.
The TPS73xx family also features a shutdown mode that places the output in the high-impedance state
(essentially equal to the feedback-divider reSistance) and reduces quiescent current to under 0.5 IJA. When the
shutdown feature is not used, EN should be tied to ground. Response to an enable transition is quick; regulated
output voltage is reestablished in typically 120 IJS.
'
minimum load requirements
The TPS73xx family is stable even at zero load; no minimum load is required for operation.
SENSE connection
The SENSE terminal of fixed-output devices must be connected to the regulator output for proper functioning
of the regulator. Normally, this connection should be as short as possible; however, the connection can be made
near a critical circuit (remote sense) to improve performance at that point. Internally, SENSE connects to a
high-impedance wide-bandwidth amplifier through a resistor-divider network, and noise pickup feeds through
to the regulator output. It is essential to route the SENSE connection in such a way as to minimize/avoid noise
pickup. Adding an RC network between SENSE and OUT to filter noise is not recommended because it can
cause the regulator to oscillate.
external capacitor requirements
An input capacitor is not required; however, a ceramic bypass capacitor (0.047 pF to 0.1 J.lF) improves load
transient response and noise rejection when the TPS73xx is located more than a few inches from the power .
supply. A higher-capacitance electrolytic capaCitor may be necessary if large (hundreds of milliamps) load
transients with fast rise times are anticipated.
~1ExAs
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-179
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F -JUNE 1995 - REVISED JANUARY 1999
APPLICATION INFORMATION
external capacitor requirements (continued)
As with most LDO regulators, the TPS73xx family requires an output capacitor for stability. A low-ESR 10-I1F
solid-tantalum capacitor connected from the regulator output to ground is sufficient to ensure stability over the
full load range (see Figure 42). Adding high-frequency ceramic or film capacitors (such as power-supply bypass
capacitors for digital or analog ICs) can cause the regulator to become unstable unless the ESR of the tantalum
capacitor is less than 1.2 il over temperature. Capacitors with published ESR specifications such as the
AVX TPSD1 06M035R0300 and the Sprague 593D106X0035D2W work well because the maximum ESR at
25°C is 300 mil (typically, the ESR in solid-tantalum capacitors increases by a factor of 2 or less when the
temperature drops from 25°C to -40°C). Where component height and/or mounting area is a problem,
physically smaller, 10-I1F devices can be screened for ESR. Figures 29 through 32 show the stable regions of
operation using different values of output capacitance with various values of ceramic load capacitance.
In applications with little or no high-frequency bypass capacitance « 0.2I1F), the output capacitance can be
reduced to 4.7I1F, provided ESR is maintained between 0.7 and 2.5 il. Because capacitor minimum ESR is
seldom if ever specified, it may be necessary to add a 0.5-il to 1-il resistor in series with the capacitor and limit
ESR to 1.5 il maximum. As shown in the CSR graphs (Figures 29 through 32), minimum ESR is not a problem
when using 10-I1F or larger output capacitors.
Below is a partial listing of surface-mount capacitors usable with the TPS73xx family. This information, along
with the CSR graphs, is included to assist in selection of suitable capacitance for the user's application. When
necessary to achieve low height requirements along with high output current and/or high ceramic load
capacitance, several higher ESR capaCitors can be used in parallel to meet the guidelines above.
All load and temperature conditions with up to 1 I1F of added ceramic load capacitance:
PART NO.
MFR.
VALUE
MAX ESRt
SIZE (H x L x W)t
T421 C226M01 OAS
Kemet
22 I1F, 10 V
0.5
2.8x 6x 3.2
593D156X0025D2W
Sprague
15 I1F, 25 V
0.3
2.8 x 7.3 x 4.3
593D106X0035D2W
Sprague
10 I1F, 35 V
0.3
2.8 x 7.3 x 4.3
TPSD106M035R0300
AVX
10 I1F, 35 V
0.3
2.8 x 7.3 x 4.3
Load < 200 mA, ceramic load capacitance < 0.2 I1F, full temperature range:
PART NO.
SIZE (H x L x W)t
MFR.
VALUE
MAX ESRt
592D156X0020R2T
Sprague
1511F, 20 V
1.1
1.2x7.2x6
595D156X0025C2T
Sprague
1511F, 25 V
1
2.5 x 7.1 x 3.2
595D106X0025C2T
Sprague
10 I1F, 25 V
1.2
2.5 x 7.1 x 3.2
293D226X0016D2W
Sprague
2211F, 16 V
1.1
2.8 x 7.3 x 4.3
Load < 100 mA, ceramic load capacitance < 0.2I1F, full temperature range:
PART NO.
t
MFR.
VALUE
MAX ESRt
SIZE (H x L x W)t
195D106X06R3V2T
Sprague
10 I1F, 6.3 V
1.5
1.3 x 3.5 x 2.7
195D106X0016X2T
Sprague
10I1F, 16 V
1.5
1.3x7x2.7
595D156X0016B2T
Sprague
1511F, 16 V
1.8
1.6 x 3.8 x 2.6
695D226X0015F2T
Sprague
2211F, 15 V
1.4
1.8 x 6.5 x 3.4
695D156X0020F2T
Sprague
1511F, 20 V
1.5
1.8 x 6.5 x 3.4
695D106X0035G2T
Sprague
10 I1F, 35 V
1.3
2.5 x 7.6 x 2.5
Size is in mm. ESR is maximum resistance at 100 kHz and TA = 25°C. Listings are sorted by height.
~TEXAS
INSTRUMENTS
2-180
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS7301Q,TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
APPLICATION INFORMATION
external capacitor requirements (continued)
TPS73xxPwt
8
9
10
0.1
6
~F
IN
RESET
IN
SENSE
IN
OUT
EN
OUT
20
To System
Reset
15
250kO
Vo
----,I
I
I
GND
CSR=l 0
I
_ _ _ _ ..I
t
TPS7333, TPS7348, TPS7350 (fixed-voltage options)
Figure 47. Typical Application Circuit
programming the TPS7301 adjustable LOO regulator
Programming the adjustable regulators is accomplished using an external resistor divider as shown in
Figure 43. The equation governing the output voltage is:
V 0 = V ref x (1
+
~~)
Where
Vref =reference voltage, 1.182 V typ
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-181
TPS7301Q, TPS7325Q,TPS7330Q,TPS7333Q,TPS7348Q,TPS7350Q
LOW·DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F - JUNE 1995 - REVISED JANUARY 1999
APPLICATION INFORMATION
Resistors R1 and R2 should be chosen for approximately 7-1JA divider current. A recommended value forR2
is 169 k.Q with R1 adjusted for the desired output voltage. Smaller resistors can be used, but offer no inherent
advantage and consume more power. Larger values of R1 and R2 should be avoided as leakage currents at
FB will introduce an error. Solving for R1 yields a more useful equation for choosing the appropriate resistance:
R1 = ( :0 - 1) x R2
ref
OUTPUT VOLTAGE
PROGRAMMING GUIDE
TPS7301
VI
>2.7V
0.11lF
~
::t::
liN
RESET
T
EN
II--'-+-
OUTPUT
VOLTAGE
OUT I--li----.--~p_ Vo
0.4 r--I---+--+--I--+.F-+--t-l
t
0.31---+--1-
I
~
I
>
I
CD
:!l!'"
~
'5
0.2
r--I---+-7"F---7""-::;;~-+--t-l
0
CI.
e
c
0.1
1----I~'_7I''7'''-+--+-+_-+--+--I
100
200
300
400
500
600
0.2
0.1
700
100
Load Current - mA
Figure 5
200
300 400 500
Load Current - mA
600
700
Figure 6
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-195
TPS73HD301, TPS73HD318,TPS73HD325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS167C - SEPTEMBER 1998 - REVISED - MAY 1999
TYPICAL CHARACTERISTICS
CHANGE IN DROPOUT VOLTAGE
vs
FREE·AIR TEMPERATURE
10
8
t
6
I
~
4
'S
8.
2
Q
e
0
/
..
(,)
-4
8
>
-6
I
V
-2
~
.c
TA = 25°C
1.4
/'t'
.5
GI
1.6
/
10 =1OOmA
=e
DROPOUT VOLTAGE
vs
OUTPUT CURRENT
I)
I
/
~
t::
0.8
Q
0.6
8.e
VI = 3.9 V ---....
I
VI = 5.9V--..
VI = 9.65 v---....
I
V
$
0.4
0.2
~
-10
-50
-25
0
25
50
75
100
TA - Free-Air Temperatura - °C
125
TA = 25°C
10=500mA
5
>
I
~
~
5
!
,."
----
0
t
~
-5
I
I
-10
~
~
2.52
I
~
II
5
o
~
-5
6
-10
~
-15
~OV
2.51
~
/
-
-.....
~
~
VI = 3.5-; _ _ _ _
"S
2.5
0
2.49
~
b
2.48
>
b
------
r--
r--.....
2.47
2.46
2.45
-20
4
5
678
VI -Input Voltage - V
9
10
o
200
400
600
10 - Output Current - mA
Figure 11
800
Figure 12
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
3.38
3.3-V Regulator
3.36
>
3.34
I
III
J
3.32
"S
3.30
~
g
b
>
"
""""~
= 4.3 V
_
3.28 I-- VI=10V~ ---..... r-3.26
~
3.24
3.22
o
----...........
200
400
600
10 - Output Current - mA
800
Figure 13
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • OAUAS. TEXAS 75265
2-197
TPS73HD301, TPS73HD318, TPS73HD325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS167C - SEPTEMBER 1998 - REVISED - MAY 1999
TYPICAL CHARACTERISTICS
OUTPUT VOLTAGE RESPONSE FROM
ENABLE (EN)
_.
VO(nom)
,rv
/
/
TA = 25°C
RL=5000
Co = 4.711F (CSR = 10)
No Inpui Ciipiiciiiince
6
4
::;-
2
t
~
o Iffi
-2
o
20
40
60
80 100 120 140
Time-lIS
Figure 14
ADJUSTABLE REGULATOR
LOAD TRANSIENT RESPONSE
3.3-V REGULATOR
LOAD TRANSIENT RESPONSE
1500
:e
2000
>
1000
E
GI
GI
0::0
500
I
~
'!i
~
~
0
!
'!ia.
'!i
0
-500
.5
.5
GI
TA=25°C
VI=6V
.110 = 750 mA
Co = 1Ol1F
CSR=10hm
tR=50ns
0::0
c -1000
01
.c
(J
I
1500
I
I
-
-1500
>0
0
I
Q)
o::D
6.25
6
!1!
:e
'S
a.
.5
I
5.75
o
100
200
300
400
">
t-llme-1lS
Figure 17
3.3-V REGULATOR
LINE TRANSIENT RESPONSE
>
E
I
Q)
200
I
:e
100
f
0
'S
0
.5
Q)
o::D
\,.
A.
V
V
-50
TA = 25°C
CI=O
Co = 4.7 I1F (CSR = 1 0)
c
c5I
-100
~
<:3
6.5
>I
6.25
:e
6
o
100
200
300
400
5.75
500
_
i
i
.5
I
>"
t-llme-J.IS
Figure 18
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-199
TPS73HD301,TPS73HD318,TPS73HD325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS167C - SEPTEMBER 1998 - REVISED - MAY 1999
TYPICAL CHARACTERISTICS
RIPPLE REJECTION
OUTPUT SPECTRAL-NOISE DENSITY
vs
vs
FREQUENCY
60
50
,
III
'0
I
40
C
0
••..
:g
30
II:
.......
TA=25~C
3.:,-V "~"Y'R'V'
I
FREQUENCY
10
No Input
capacitance Added
VI =VO+ 1 V
10= 100 rnA
Cc = 4.711F (CSR = 1)
~ 111111111 I 111111111 I II
Adjustable With
Vo Programmed
1$
~
0..
'"
~
~
I!
"G
CD
...!.
Ul
:;
0..
:;
~
0
o
1K
10 K
r\
0.1
0..
11111"
100
Co = 10 I1F (CSR=10)
CD
.!!!
to2.5V
10
100 K
1M
0.01
10
10 M
~o~~~Rl11~)
100
f - Frequency - Hz
TYPICAL REGIONS OF STABILITY
TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE (CSR)t
vs
vs
OUTPUT CURRENT
ADDED CERAMIC CAPACITANCE
TA = 25°C
VI=VO+1 V
r---.---,r'-+_ 10 = 500 rnA
Co = 4.7 I1F
No Input capacitor Added
Cl
I
8c
8c
.11!
10
'it
.
II:
II:
'"
~c
ic
~c
jc
80.1
I
II:
~
'"
8-
TA=25°C
VI =VO+ 1 V
Co =4.7I1F
No Added Ceramic Capacitance
No Input Capacitance Added
E
0
100k
COMPENSATION SERIES RESISTANCE (CSR)t
I
0
10k
Figure 20
Cl
.~
1k
f - Frequency - Hz
Figure 19
.11!
I
l"\ Co = 4.711F (CSR = 10)
~
c
20
10
IVII;=I~rI1 ~ 1111111
1\
I
Q.
ii:
TA=25°C
No Input Capacitance Added
~~
50
100
150
200
E
0
0
0.1
I
II:
Ul
0
250
0.1
10 - Output Currenl- rnA
Figure 21
0.6 0.7 0.8 0.9
Figure 22
-!11
2-200
0.2 0.3 0.4 0.5
Added Ceramic Capacitance -I1F
TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
1
TPS73HD301, TPS73HD318, TPS73HD325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS167C-SEPTEMBER 1998- REVISED- MAY 1999
TYPICAL CHARACTERISTICS
ADJUSTABLE REGULATOR TYPICAL REGIONS OF STABILITY
3.3-V REGULATOR TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE
COMPENSATION SERIES RESISTANCE
vs
OUTPUT CURRENT
OUTPUT CURRENT
vs
C
C
I
II
I
10
t--t--t--+-
I
II
~~!~~~~ TA
=25°C 1 V
VI=VO+
Co = 10J.lF
No added ceramic
capacitance.
No Input capacitor.
J
0.1
(J
I
II:
10
0.1
I
~
{'j
0.01
o
100
200
300
400
500
600
700
100
10 - OUtput Currant - mA
200
300
400
500
600
700
10 - Output Currant - mA
Figure 23
Figure 24
ADJUSTABLE REGULATOR TYPICAL REGIONS OF STABILIn
3.3-V REGULATOR TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE
COMPENSATION SERIES RESISTANCE
vs
ADDED CERAMIC CAPACITANCE
ADDED CERAMIC CAPACITANCE
vs
C
I
iI
=
TA 25°C
VI=VO+ 1 V
10 =750 mA
Co =10J.lF
No Input capacitance.
-+-__+-_-1
I
I
II:
{'j
0.01
o
11.2
0.4
0.6
0.8
Added Ceramic Cepacltance - J.lF
Figure 25
Added Ceramic Capacitance - J.LF
Figure 26
~TEXAS
INSTRUMENTS
POST OFACE BOX 655303 • DALLAS. TEXAS 75265
2-201
TPS73HD301,TPS73HD318,TPS73HD325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS167C - SEPTEMBER 1996 - REVISED - MAY 1999
TYPICAL CHARACTERISTICS
PASS-ELEMENT RESISTANCE
MINIMUM INPUT VOLTAGE FOR VALID RESET
vs
INPUT VOLTAGE
FREE-AIR TEMPERATURE
vs
1.1
>
TA=25°c
VI(FB) = 1.12 V
c:
I
8
0.9
I
0.8
~f/
..
\ 1\
0.4
I
1.08
j
/
II>
1.5
V- 10=100mA
0.3
~
0.2
""'"
C
j
l
~
0.5
i
1.09
,
I I
0.6
~
Ia:i:s!
;i
10 =500 mA
./
0.7
iE
1.1
I
E
~
~
i
0.1
3
4
5
6
7
8
9
/
1.06
10
1.05
-50
-25
VI- Input Voltage - V
NEGATIVE-GOING RESET THRESHOLD
RESET OUTPUT CURRENT
vs
FREE-AIR TEMPERATURE
INPUT VOLTAGE
vs
4
15
E
I
10
~
5
J
;
Iz
I
,.,.... /
0
~
'0
-5
/
/
V
V
/
J
3.5
C
E
I
3
'E
~
:::I
u
'!i
2.5
Do
~
V
Ii
IL=10mA
VOL S 0.4 V
TA = 25°C
3.3-V Regulator
2
1.5
I
-'
.9
-10
tl:
>
0.5
-15
-50
-25
0
25
50
75
100
125
I
/
/
II
o J
o
TA - Free-Air Temperature - °C
Figure 29
2
3
4
5
6
7
VI-Input Voltage - V
Figure 30
~1ExAs
2-202
125
Figure 28
>
I
/
0
25
50
75
100
TA - Free-Air Temperature - °c
Figure 27
~
s:.
/
V
/
I
>'
2
1.07
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
8
9
10
TPS73HD301,TPS73HD318,TPS73HD325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS167C - SEPTEMBER 1998 - REVISED - MAY 1999
TYPICAL CHARACTERISTICS
RESET DELAY TIME
vs
DISTRIBUTION FOR RESET DELAY
FREE-AIR TEMPERATURE
50.---.----r--~----r---.---,
197
45 1----+----
196
""
II)
E
I
195
III
E
1=
i;'
;!i
J
I
:s
194
193
192
40 1----+---351---+---301---+---
.........
" i'--.
25
...........
191
190
-SO
-25
o
25
50
75
--
100
20
15
10
5
125
185
TA - Free-Air Temperature _OC
190
195
200
Ici- Reset Delay TIme -
205
210
ms
Figure 32
Figure 31
THERMAL INFORMATION
The TPS73HD3xx is packaged in a high-power dissipation downset lead frame for optimal power handling. with
proper heat dissipation techniques, the full power soutput of these devices can be safely handled over the full
temperture range. The Texas Instruments technical brief, PowerPAD Thermally Enhanced Package (literature
number SLMA002), goes into considerable detail into techniques for properly mounting this type of package for
maximum thermal performance. A thermal conduction plane of approximately 3" y 3" will give a powerdissipatio level
of4.5W.
Power dissipation within the device can be calculated with the following equation:
PD
= P IrvP OUT =
V
A'01 + '0.2)-( V01 x '01 + V0.2 x '0.2)
~TEXAS
INSTRUMENTS
POST OFFICE BOX 855303 • DALLAS. TEXAS 75285
2-203
TPS73HD301, TPS73HD318, TPS73HD325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS167C - SEPTEMBER 1996 - REVISED - MAY 1999
APPLICATION INFORMATION
thermal considerations
DISSIPATION RATING TABLE
PACKAGE
PWP;
pwP9
DERATING FACTOR
ABOVE TA 25°C
=
=
AIRFLOW
(CFM)
TAc25°C
POWER RATING
0
2.9W
23.5mW/"C
1.9W
1.5W
300
4.3W
34.6mW/"C
2.BW
2.2W
=
TA 70°C
POWER RATING
TA 85°C
POWER RATING
0
3W
23.BmW/"C
1.9W
1.5W
300
7.2W
57.9mW/oC
4.6W
3.BW
tThis parameter is measured with the recommended copper heat sink pattem on a l-Iayer PCB, 5-ln x 5-ln PCB,
1 oz. copper, 2-in x 2-in coverage (4 in2).
:j: This parameter is measured with the recommended copper heat sink pattem on an B-Iayer PCB, 1.5-in x 2-in PCB, 1 oz. copper
with layers 1, 2, 4, 5, 7, and B at 5% coverage (0.9 in 2) and layers 3 and 6 at 100% coverage (6 in2).
The maximum ambient temperature depends on the heatsinking ability of the PCB system. Using the 0 CFM
and 300 CFM data from the dissipation rating table, the derating factor for the PWP package with 6.9 in 2 of
copper area on a multilayer PCB is 24 mW/oC and 58 mW/oC respectively. Converting this to ElJA:
e JA
=
Oe~ting
For 0 CFM:
For 300 CFM:
= 0.0135
=
42.6°C/W
= 0.0179
= 17.3°C/W
Given ElJA' the maximum allowable junction temperature, and the total internal diSSipation, the maximum
ambient temperature can be calculated with the following equation. The maximum recommended junction
temperature for the TPS73HD3xx is 150°C.
TA Max = TJ Max -
(eJA x po)
The maximum power dissipation limit is determined using the following equation:
T
_ TJmax-TA
O(max) RaJA
Where:
T Jmax is the maximum allowable junction temperature
RaJA is the thermal resistance junction-to-free-air for the package (i.e., 285°C/W for the 5-terminal
SOT-23 package.
TA is the free-air temperautre
The regulator dissipation is calculated using:
Po = (VI - Vo ) x 10
Power dissipation resulting from quiescent current is negligible.
~TEXAS
INSTRUMENTS
2-204
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS73HD301,TPS73HD318,TPS73HD325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS167C - SEPTEMBER 1998 - REVISED - MAY 1999
APPLICATION INFORMATION
Capitalizing upon the features of the TPS73xx family (low-dropout voltage, low quiescent current, power-saving
shutdown mode, and a supply-voltage supervisor) and the power-dissipation properties of the TSSOP PowerPAD
package has enabled the integration of the TPS73HD3xx dual LDO regulator with high output current for use in DSP
and other multiple voltage applications. Figure 35 shows a typical dual-voltage DSP application.
?
R1
100kO
U1
TPS73HD325
-1
-2
3
4
5V
5
6
CO
~11'i
T-=
NC
1GND
1EN
L
9
11
12
:!.L
....E...
1FBISENSE
1OUT
11N
10UT
NC
2GND
2EN
21N
21N
28
2RESET
RESET to DSP
24
23
NC
~
20UT
20UT
NC
~ NC
NC
2.5 V
22
.-n
2SENSE
PG
~
NC
NC
D1
C3
3311F
;::
r--1!.18
CVdd
(Core
Supply)
,n.
~
!:s
Q
17
r--.!!
r--1!
~~
D3
DL5817
D2
,n.
;:::::; C1
111f
;::
GND
trJ-
NC
NC ~
11N
~ NC
10
-=-
NC
t--
1 RESET
R2
100kO
C2
::o-3311F
3.3 V
DVdd
(I/O
Supply)
r-
J.
GND
VC549
DSP
Figure 33. Dual-Voltage DSP Application
DSP power requirements include very high transient currents that must be considered in the initial design. This design
uses higher-valued output capacitors to handle the large transient currents. Details of this type of design are shown
in the application report, Designing Power Supplies for TMS320VC549 DSP Systems.
minimum load requirements
The TPS73HD3xx is stable even at zero load; no minimum load is required for operation.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DAUAS. TEXAS 75265
2-205
TPS73HD301, TPS73HD318, TPS73HD325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS167C - SEPTEMBER 1998 - REVISED - MAY 1999
APPLICATION INFORMATION
SENSE connection
The SENSE terminal of fixed-output devices must be connected to the regulator output for proper functioning
of the regulator. Normally, this connection should be as short as possible; however, the connection can be made
near a critical circuit (remote sense) to improve performance at that point. Internally, SENSE connects to a
high-impedance wide-bandwidth amplifier through a resistor-divider network, and noise pickup feeds through
to the regulator output. It is essential to route the SENSE connection in such a way as to minimize/avoid noise
pickup. Adding an RC network between SENSE and OUT to filter noise is not recommended because it can
cause the regulator to oscillate.
external capacitor requirements
An input capacitor is not required; however, a ceramic bypass capacitor (0.047 pF to 0.1 ILF) improves load
transient response and noise rejection when the TPS73H03xx is located more than a few inches from the power
supply. A higher-capacitance electrolytic capaCitor may be necessary if large (hundreds of milliamps) load
transients with fast rise times are antiCipated.
As with most LOO regulators, the TPS73H03xx requires an output capacitor for stability. A low-ESR 10-ILF
solid-tantalum capacitor connected from the regulator output to ground is sufficient to ensure stability over the
full load range (see Figure 44). Adding high-frequency ceramic or film capacitors (such as power-supply bypass
capacitors for digital or analog ICs) can cause the regulator to become unstable unless the ESR of the tantalum
capacitor is less than 1.2 0 over temperature. Capacitors with published ESR specifications such as the
AVX TPS01 06M035R0300 and the Sprague 5930106X003502W work well because the maximum ESR at
25°C is 300 mO (typically, the ESR in solid-tantalum capacitors increases by a factor of 2 or less when the
temperature drops from 25°C to -40°C). Where component height and/or mounting area is a problem,
physically smaller, 10-ILF devices can be screened for ESR. Figures 23 through 28 show the stable regions of
operation using different values of output capacitance with various values of ceramic load capacitance.
Due to the reduced stability range available when using output capacitors smaller than 10 ILF, capacitors in this
range are not recommended. Larger capacitors provide a wider range of stability and better load transient
response. Because capaCitor minimum ESR is seldom if ever specified, it may be necessary to add a 0.5-0 to
1-0 resistor in series with the capaCitor and limit ESR to 1.5 0 maximum. As shown in the CSR graphs
(Figures 23 through 28), minimum ESR is not a problem when using 10-ILF or larger output capacitors.
Below is a partial listing of surface-mount capacitors usable with the TPS73H03xx. This information, along with
the CSR graphs, is included to assist in selection of suitable capacitance for the user's application. When
necessary to achieve low height requirements along with high output current and/or high ceramic load
capacitance, several higher ESR capacitors can be used in parallel to meet the guidelines above.
~TEXAS'
2-206
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS73HD301, TPS73HD318, TPS73HD325·
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS167C - SEPTEMBER 1998 - REVISED - MAY 1999
APPLICATION INFORMATION
external capacitor requirements (continued)
All load and temperature conditions with up to 1 I1F of added ceramic load capacitance:
PART NO.
MFR.
VALUE
MAX ESRt
SIZE (H x L x W)t
T421 C226M01 OAS
Kemet
2211F, 10 V
0.5
2.8 x 6 x 3.2
593D156X0025D2W
Sprague
1511F, 25 V
0.3
2.8 x 7.3 x 4.3
593D106XOO35D2W
Sprague
10 I1F, 35 V
0.3
2.8 x 7.3 x 4.3
TPSD106M035R0300
AVX
10 I1F, 35 V
0.3
2.8 x 7.3 x 4.3
Load < 200 mA, ceramic load capacitance < 0.2 I1F, full temperature range:
MFR.
VALUE
MAX ESRt
592D156X0020R2T
PART NO.
Sprague
1511F, 20 V
1.1
595D156X0025C2T
Sprague
1511F, 25 V
SIZE (H x L x W)t
1.2x 7.2 x6
2.5 x 7.1 x 3.2
595D106X0025C2T
Sprague
10 I1F, 25 V
1.2
2.5 x 7.1 x 3.2
293D226X0016D2W
Sprague
2211F, 16 V
1.1
2.8 x 7.3 x 4.3
Load < 100 mA, ceramic load capacitance < 0.211F, full temperature range:
MFR.
VALUE
MAX ESRt
SIZE (H x L x W)t
195D106X06R3V2T
Sprague
10 I1F, 6.3 V
1.5
1.3 x 3.5 x 2.7
195D106XOO16X2T
Sprague
10l1F, 16 V
1.5
1.3x7x2.7
595D156XOO1682T
Sprague
1511F, 16 V
1.8
1.6 x 3.8 x 2.6
1.8 x 6.5 x 3.4
PART NO.
695D226X0015F2T
Sprague
2211F, 15 V
1.4
695D156X0020F2T
Sprague
15 J,1F, 20V
1.5
1.8 x 6.5 x 3.4
695D106X0035G2T
Sprague
1011F', 35 V
1.3
2.5 x 7.6 x 2.5
t Size is in mm. ESR is maximum resistance at 100kHz and TA =25°C. listings are sorted by height.
:lflExAs
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-207
TPS73HD301,TPS73HD318,TPS73HD325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS167C - SEPTEMBER 1998 - REVISED - MAY 1999
APPLICATION INFORMATION
programming the adjustable LOO regulator output
Programming the adjustable regulator is done using an external resistor divider as shown in Figure 44. The
equation governing the output voltage is:
V0 = V ref x (1
+ ~~)
Where
Vref =reference voltage, 1.182 V typ
Resistors R1 and R2 should be chosen for approximately 7-1JA divider current. A recommended value for R2
is 169 k.Q with R1 adjusted for the desired output voltage. Smaller resistors can be used, but offer no inherent
advantage and consume more power. Larger values of R1 and R2 should be avoided as leakage currents at
FB will introduce an error. Solving for R1 yields a more useful equation for choosing the appropriate resistance:
R1 =
(:0 -
1) x R2
ref
OUTPUT VOLTAGE
PROGRAMMING GUIDE
TPS73HD3xx
5
liN
1RESET
OUTPUT
VOLTAGE
28
lOUT
>2.7 V
L....
<0.5 V
4
Rl
R2
UNIT
45.3
169
kQ
1.8V
-t
-t
88.7
169
kQ
2.5V
2.37 V
191
169
kQ
3.3V
3.13V
309
169
kQ
3.6V
3.42 V
348
169
kQ
4V
3.80 V
402
169
kQ
5V
4.75 V
549
169
kQ
6.OBV
6.4V
750
Non-operational below 1.9 V
169
kQ
1.5V
liN
lOUT
lEN
lGND
3
lFB
----,
Vo
r
1-"'"
1I
25
01 IL
R2
I
CSR=l
_
_ _ _QI
oJI
":"
t
RESET
VOLTAGE
Figure 34. TPS7301 Adjustable LOO Regulator Programming
~TEXAS
INSTRUMENTS
2-208
POST OFFICE BOX 855303 • DALlAS. TEXAS 75285
TPS73HD301, TPS73HD318, TPS73HD325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS167C - SEPTEMBER 1998 - REVISED - MAY 1999
APPLICATION INFORMATION
undervoltage supervisor function
The RESET outputs of the TPS73HD3xx initiate a reset in microcomputer and microprocessor systems in the
event of an undervoltage condition. An internal comparator in the TPS73HD3xx monitors the output voltage of
the regulator to detect the undervoltage condition. When that occurs, the RESET output transistor turns on,
taking the RESET signal low.
At programmed output voltages below 1.9 V (on the adjustable regulator only) and on the 1.8 V regulator the
reset function becomes unusable. With a minimum output voltage requirement for a valid RESET signal (over
temperature) being 1.9 V, RESET will not operate reliably in this range.
On power up, the output voltage tracks the input voltage. The RESET output becomes active (low) as VI
approaches the minimum required for a valid RESET signal (specified at 1.S V for 2SoC and 1.9 V over full
recommended operating temperature range). When the output voltage reaches the appropriate positive-going
input threshold (VIT+), a 200-ms (typical) timeout period begins during which the RESET output remains low.
Once the timeout has expired, the RESET output becomes inactive. Since the RESET output is an open-drain
NMOS, a pullup resistor should be used to ensure that a logic-high signal is indicated.
The supply-voltage-supervisor function is also activated during power down. As the input voltage decays and
after the dropout voltage is reached, the output voltage tracks linearly with the decaying input Voltage. When
the output voltage drops below the specified negative-going input threshold (VIT- - see electrical
characteristics tables), the RESET output becomes active (low). It is important to note that if the input voltage
decays below the minimum required for a valid RESET, the RESET is undefined.
Since the circuit is monitoring the regulator output voltage, the RESET output can also be triggered by disabling
the regulator or by any fault condition that causes the output to drop below VIT-' Examples of fault conditions
include a short circuit on the output and a low input Voltage. Once the output voltage is reestablished, either by
reenabling the regulator or removing the fault condition, then the internal timer is initiated, which holds the
RESET signal active during the 200-ms (typical) timeout period.
Transient loads or line pulses can also cause a reset to occur if proper care is not taken in selecting the input
and output capacitors. Load transients that are faster than S J.lS can cause a reset if high-ESR output capacitors
(greater than approximately 7 0) are used. A 1-J.lS transient causes a reset when using an output capacitor with
greater than 3.S 0 of ESR. Note that the output-voltage spike during the transient can drop well below the reset
threshold and still not trip if the transient duration is short. A 1-I1S transient must drop at least SOO mV below the
threshold before tripping the reset circuit. A 2-J.lS transient trips RESET at just 400 mV below the threshold.
Lower-ESR output capacitors help by reducing the drop in output voltage during a transient and should be used
when fast transients are expected.
NOTE:
VIT+
=VIT _ +Hysteresis
output noise
The TPS73HD3xx has very low output nOise, with a spectral noise density < 211V 11HZ. This is important when
noise-susceptible systems, such as audio amplifiers, are powered by the regulator.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-209
TPS73HD301, TPS73HD318, TPS73HD325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS167C - SEPTEMBER 1998 - REVISED - MAY 1999
APPLICATION INFORMATION
regulator protection
The TPS73HD3xx PMOS-pass transistors have built-in back diodes tl1at safely conduct reverse currents when
the input voltage drops below the output voltage (e.g., during power down). Current is conducted from the output
to the input and is not internally limited. If extended reverse voltage is anticipated, external limiting might be
appropriate.
The TPS73HD3xx also features internal current limiting and thermal protection. During normal operation, the
TPS73HD3xx limits output current to approximately 1 A. When current limiting engages, the output voltage
scales back linearly until the overcurrent condition ends. While current limiting is designed to prevent gross
device failure, care should be taken not to exceed the power dissipation ratings of the package. If the
temperature of the device exceeds 165°C, thermal-protection circuitry shuts it down. Once the device has
cooled, regulator operation resumes.
~TEXAS
2-210
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS, TEXAS 75265
TPS76030,TPS76032, TPS76033, TPS76038, TPS760S0
LOW·POWER SQ-mA LOW·DROPOUT LINEAR REGULATORS
- REVISED FEBRUARY 1999
DBVPACKAGE
(TOP VIEW)
• SD-mA Low-Dropout Regulator
• Fixed Output Voltage Options: S V, 3.8 V,
3.3 V, 3.2 V, and 3 V
EN
GND
IN
W
• Dropout Typically 120 mVat SO mA
• Thermal Protection
• Less Than 1 !LA Quiescent Current in
Shutdown
• -40°C to 12SoC Operating Junction
Temperature Range
NC
OUT
NC - No internal connection
• SoPin SOT-23 Package
• ESD Protection Verified to 1.S kV Human
Body Model (HBM) per MIL-STD-883C
description
The TPS760xx is a 50mA, low dropout (LOO) voltage regulator designed specifically for battery-powered
applications. A proprietary BiCMOS fabrication process allows the TPS760xx to provide outstanding
performance in all specifications critical to battery-powered operation.
The TPS760xx is available in a space-saving SOT-23 package and operates over ajunction temperature range
of -40°C to 125°C.
AVAILABLE OPTIONS
TJ
VOLTAGE
-40°C to 125°C
PART NUMBER
SYMBOL
3V
TPS76030DBVR
PAGI
3.2 V
TPS76032DBVR
PAOI
TPS76033DBVR
PAHI
PACKAGE
3.3 V
SOT-23
3.8V
TPS76038DBVR
PAJI
5V
TPS76050DBVR
NOTE: The DBV package IS available taped and reeled only.
PANI
functional block diagram
I N - - - - - - -.....
\-----1>-- OUT
EN-------,
GND~
t Current sense
~TEXAS
Copyright © 1999, Texas Instruments Incorporated
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-211
TPS76030, TPS76032, TPS76033, TPS76038,TPS76050
LOW-POWER 50-mA LOW-DROPOUT LINEAR REGULATORS
SLVS144B -JULY 1998 - REVISED FEBRUARY 1999
Terminal Functions
TERMINAL
NAME
NO.
IN
1
GND
2
EN
3
NC
4
OUT
S
DESCRIPTION
1/0
Input voltage
I
Ground
I
Enable input
No connection
0
Regulated output voltage
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)t
Input voltage range, VI:!:" ................................................................. -0.3 V to 16 V
Voltage range at EN ................................................................. -0.3 V to Vi + 0.3 V
Peak output current ............................................................... internally limited
Continuous total dissipation .................................................... See dissipation table
Operating junction temperature range, TJ ........................................... -40°C to 150°C
Storage temperature range, Tstg ......................................................... -65°C to 150°C
ESD rating, HBM ......................................................................... 1.5 kV
t
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
:t: All voltages are with respect to device GND pin.
DISSIPATION RATING TABLE
=
=
PACKAGE
TAS25°C
POWER RATING
DERATING FACTOR
ABOVE TA 25°C
Recommended
DBV
3S0mW
3.SmW/oC
192mW
140mW
Maximum
DBV
437mW
3.SmW/oC
280mW
227mW
=
TA 70°C
POWER RATING
TA 85°C
POWER RATING
recommended operating conditions
MIN
Input voltage, VI
MAX
UNIT
3.2
16
V
TPS76032
3.4
16
V
TPS76033
3.S
16
V
TPS76038
4
16
V
TPS760S0
5.2
16
V
0
50
rnA
-40
125
°C
Continuous output current, 10
Operating junction temperature, TJ
~TEXAS
INSTRUMENTS
2-212
NOM
TPS76030
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS76030,TPS76032,TPS76033,TPS76038,TPS760S0
LOW-POWER SO-mA LOW-DROPOUT LINEAR REGULATORS
SLVSl44B -JULY 1998 - REVISED FEBRUARY 1999
electrical characteristics over recommended operating free-air temperature range,
V. = VO(nom) + 1 V,IO = 1 mA, EN = V.. Co = 2.2 ~F (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
2.96
3
3.04
V
2.92
3.04
V
1 mA<10<5OmA
2.91
3.07
V
TJ = 25°C
3.16
3.24
V
3.13
3.24
V
3.1
3.3
V
3.34
V
3.23
3.34
V
3.2
3.4
V
3.84
V
TJ = 25°C
TPS76030
TPS76032
TJ = 25°C.
TJ = 25°C.
1 mA<10<50mA
1 mA<10<50mA
1 mA<10<5OmA
3.26
TJ = 25°C
Vo
Output voltage
TPS76033
TJ = 25°C.
1 mA<10<50mA
1 mA<10<5OmA
3.76
TJ=25°C
TPS76038
TJ = 25°C.
1 mA < 10 < 50 mA
1 mA< 10 <50 mA
TJ = 25°C.
1 mA<10<50mA
1 mA<10<5OmA
II (standby)
Standby current
3.3
3.8
3.73
3.84
V
3.7
3.9
V
4.95
TJ = 25°C
TPS76050
3.2
5
5.05
V
4.91
5.05
V
4.89
5.1
V
1
IJA
EN=OV
10= 0 rnA. TJ=25°C
90
10=OmA
10= 1 mAo TJ = 25°C
100
130
190
215
10=1 mA
Quiescent current (GND current)
170
10 = 10 mAo TJ = 25°C
850
10 = 50 mAo TJ = 25°C
1100
1200
10=50mA
Vn
TPS76030
4V
I
\
~
'" "
2.99
1
I
>
8.
"-
.!!
"~
2.98
10
\
20
30
1
3.285
'" '"
40
50
~
'" '""
"-
3.29
;g
~
o
3.295
I
2.985
2.975
I.
VI =4.3V
TA=25°C _
3.3
......
2.995
t
VI=4V
TA=25°C
.........
3.28
3.275
3.27
60
o
10
20
>
..
I
5
I
~
4.99
'S
!
0
I
4.98
Figure 2
TPS76030
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
"'""
4.97
o
60
3.15
~
VI=4V
VI=6V
TA = 25°C
1\
'"
50
TPS76050
~
4.96
40
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
5.02
5.01
30
10 - Output Current - mA
10 - Output Current - mA
Figure 1
"" "-
3.1
>
I
CD
CI
3.05
......
;g
'" "
'S
!
0
I
~
~
-
10=1 mA
.e
T
3
I
I
-
10=50mA
2.95
2.9
2.85
10
20
30
40
50
60
-55 -35 -15
5
25
45
65
85
105
125
TA - Free-Air Temperature - °C
10 - Output Current - mA
Figure 3
Figure 4
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-215
TPS76030, TPS76032, TPS76033, TPS76038, TPS760SO
LOW-POWER SO-mA LOW-DROPOUT LINEAR REGULATORS
SLVSl44B -JULY 1998 - REVISED FEBRUAA'f 1999
TYPICAL CHARACTERISTICS
TPS76033
TPS76050
OUTPUT VOLTAGE
vs
FREE·AIR TEMPERATURE
OUTPUT VOLTAGE
vs
FREE·AIR TEMPERATURE
3.35
VI=4.3V
3.3
>
I--
I
8.
!I
;i
'S
g
-
5.1
I I
10=1 mA
VI=6V
5.08
5.06
10=50mA
r - r-
>
5.04
III
5.02 _
I
I
~
3.25
5
'S
~
4.98
~
4.96
0
~
3.2
10=1 mA
=--+-t
i
i
l"""- f-..-
.... r--..,.
C 10=50mA
t-...
...........
4.94
4.92
4.9
-65 -35 -15
5 25 45 65 85 105 125
TA - Free-Air Temperature - °C
3.15
-65 -35 -15
5 25 45 65 85 105 125
TA - Free-Air Temperature - °C
Figure 6
Figure 5
TPS76030
TPS76033
GROUND CURRENT
vs
FREE·AIR TEMPERATURE
GROUND CURRENT
vs
FREE·AIR TEMPERATURE
10000
10000
:: VI=4.3V
:: VI=4V
I
"l
I
I
10=50mA
cc:::I.
1000
I
I
J
1
"'
CI
-
.1
I
100
!
10=10mA
-
!
10=1 mA
J
"0
C
::I
e
CI
10=OmA
10
-65 -35 -15
5 25 45 65 85 105 125
TA - Free-Air Tempereture - °C
f-- 10=10mA
I
-
I
100 ,=10=1mA
t= 10=OmA
10
-65 -35 -15
5 25 45 65 85 105 125
TA - Free-Air Temperature - °C
Figure 8
Figure 7
~1ExAs
2-216
I
10=50mA
1000
INSTRUMENTS
POST OFFICE BOX 855303 • DALLAS, TEXAS 75265
TPS76030, TPS76032, TPS76033, TPS76038, TPS76050
LOW-POWER 50-mA LOW-DROPOUT LINEAR REGULATORS
SLVS144B-JULY 1998- REVISED FEBRUARY 1999
TYPICAL CHARACTERISTICS
OUTPUT NOISE
vs
FREQUENCY
TPS76050
GROUND CURRENT
vs
FREE-AIR TEMPERATURE
1IIIIlii
10000
:: VI=6V
-
II
10=50mA
-
" "' <~~
10=10mA
I
100
~r~
I
i
1;=-50 :A
~
~ 1000
J
cl-LI!1
CL = 2.2 !iF
10=1 mA
I
== 10=1 mA
100nVJHz
~lo=OmA
10
-55 -35 -15
~
/'
CL = 10 !iF
10=50mA
/
IIII .~
~r-.
CL=10!iF
10=1 mA
5
25
45
65
85
105
1111
10nV JHz
250
125
1k
I I
10k
f - Frequency - Hz
100k
TA - Free-Air Temperature - °C
Figure 10
Figure 9
TPS76030
OUTPUT IMPEDANCE
vs
FREQUENCY
DROPOUT VOLTAGE
vs
FREE-AIR TEMPERATURE
10
150
CL=2.2!iF:
10 = 1 mA -::::
IO=10mA ....::::
10=50mA
y
c:
."
I
:l..
I
CL=10!iF~
10=1 mA
10 = 10 mA--------
I
./
I
I
VI = EN = 2.9 V
125
N lA
'rt" f\\~
~
E
I
CD
/
0.1
~
'S
75
8.
'-
~
~
10
f - Frequency - kHz
100
~
100
e
Q
I
10mA
50
0
~
~
25
0.1
0.01
.......... ~
1
~
"""-
CL=10!iF
10=50mA
tf
>
.,.,
.........
1000
o
-55 -35
OmAI
L
t\
-
1 mA
~
-15
5 25 45 65 85 105
TA - Free-Air Temperature - °C
125
Figure 12
Figure 11
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-217
TPS76030, TPS76032, TPS76033, TPS76038, TPS76050
LOW-POWER 50-mA LOW-DROPOUT LINEAR REGULATORS
SLVS144B -JULY 199B - REVISED FEBRUARY 1999
TYPICAL CHARACTERISTICS
TPS76033
LINE TRANSIENT RESPONSE
40
>
C
E
'Qj
I
CHI)
II
~~
100
~
20
IV
~! -20
~
V
.5 E
50
~!
0
a.
-50
CD 1
elCD
Cel
V
(J~
I ..
~
<1'5
<1'5
~-
6
!
5
'5a.
.5
4
1
3
1
CD
el
~
-~
1
j
~
U
~
>"
CO=2.2/LF , \
'U'
o
0-30
>
~
>
I
r\ "-
f
U
0
TPS76033
LOAD TRANSIENT RESPONSE
Co
j
o
\
=2.2/LF
20
,I
40
i
-
-100
~
60
40
-
20
1
.9
I
60 80 100 120 140 160 180 200
t-Time-/Ls
o
o
20
40
60 80 100 120 140 160 180 200
t-Tlme-ILS
Figure 13
Figure 14
TPS76050
LINE TRANSIENT RESPONSE
TPS76050
LOAD TRANSIENT RESPONSE
60
>
.5 E
CD 1
elCD
Cel
~!
(J~
C
i
40
<1'5
~!
(J ~
20
AlII.
0
A
VV
v
0
~
t
i
G
8
7
!.5
6
>"
~a.
<1'5
o
V
0
A
'v
Co = 2.2/LF
-50
:::
I
o
50
~
40
20
1
Co = 2.2/LF
5
i
60
.9
100 150 200 250 300 350 400 450 500
t- Tlme-ILS
o
o
~
20
40
60 80
100 120 140 160 180 200
t- TIme-1LS
Figure 16
Figure 15
~TEXAS·
2-218
r\.
1\
50
1
~
1
100
1'5
~
-20
>
1
150
Cel
I ..
0::1
>0.
>E
~
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS76030, TPS76032, TPS76033, TPS76038, TPS76050
LOW-POWER SO-mA LOW-DROPOUT LINEAR REGULATORS
SLVSI44B -JULY 1998 - REVISED FEBRUARY 1999
APPLICATION INFORMATION
5
TPS760xx
lT
OUT
CO =2.2I1F
E N - - -3-i
Figure 17. TPS760xx Typical Application
over current protection
The over current protection circuit forces the TPS760xx into a constant current output mode when the load is
excessive or the output is shorted to ground. Normal operation resumes when the fault condition is removed.
An overload or short circuit may also activate the over temperature protection if the fault condition persists.
over temperature protection
The thermal protection system shuts the TPS760xx down when the junction temperature exceeds 160°C. The
device recovers and operates normally when the temperature drops below 150°C.
Input capaCitor
A 0.047 IlF or larger ceramic decoupling capacitor with short leads connected between IN and GND is
recommended. The decoupling capacitor may be omitted if there is a 1 IlF or larger electrolytic capacitor
connected between IN and GND and located reasonably close to the TPS760xx. However, the small ceramic
device is deSirable even when the larger capacitor is present, if there is a lot of high frequency noise present
in the system.
output capacitor
Like all low dropout regulators, the TPS760xx requires an output capacitor connected between OUT and GND
to stabilize the internal control loop. The minimum recommended capacitance value is 2.2 IlF and the ESR
(equivalent series resistance) must be between 0.1 Q and 20 n. Capacitor values of 2.5-IlF or larger are
acceptable, provided the ESR is less than 20 Q. Solid tantalum electrolytic, aluminum electrolytic, and multilayer
ceramic capacitors are all suitable, provided they meet the requirements described above. Most of the
commercially available 2.2-IlF surface-mount solid-tantalum capacitors, including devices from Sprague,
Kemet, and Nichicon, meet the ESR requirements stated above. Multilayer ceramic capacitors should have
minimum values of 2.5 IlF over the full operating temperature range of the equipment.
enable (EN)
A logic zero on the enable input shuts the TPS760xx off and reduces the supply current to less than 1 J.1A. Pulling
the enable input high causes normal operation to resume. If the enable feature is not used, EN should be
connected to IN to keep the regulator on all of the time. The EN input must not be left floating.
:lllEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-219
TPS76030, TPS76032, TPS76033, TPS76038,TPS76050
LOW-POWER 50-mA LOW-DROPOUT LINEAR REGULATORS
SLVSl44B -JULY 1998 - REVISED FEBRUARY 1999
APPLICATION INFORMATION
reverse current path
The power transistor used in the TPS760xx has an inherent diode connected between IN and OUT as shown
in the functional block diagram. This diode conducts current from the OUT terminal to the IN terminal whenever
IN is lower than OUT by a diode drop. This condition does not damage the TPS760xx, provided the current is
limited to 100mA.
~TEXAS
2-220
INSTRUMENTS
POST OFFICE BOX 655303 • OALLAS, TEXAS 75265
TPS76130, TPS76132, TPS76133, TPS76138,TPS76150
LOW-POWER 100-mA LOW-DROPOUT LINEAR REGULATORS
DBVPACKAGE
(TOP VIEW)
• 100-mA Low-Dropout Regulator
• Fixed Output Voltage Options: S V, 3.8 V,
3.3 V, 3.2 V, and 3 V
EN
GND
IN
W
• Dropout Typically 170 mV at 100-mA
• Thermal Protection
• Less Than 1 IJ.A Quiescent Current in
Shutdown
• -4Q°C to 125°C Operating Junction
Temperature Range
NC
OUT
NC - No internal connection
• S-Pin SOT-23 (DBV) Package
• ESD Protection Verified to 1.S KV Human
Body Model (HBM) per MIL-STD-883C
description
The TPS761xx is a 100 rnA, low dropout (LDO) voltage regulator designed specifically for battery-powered
applications. A proprietary BiCMOS fabrication process allows the TPS761xx to provide outstanding
performance in all specifications critical to battery-powered operation.
The TPS761 xx is available in a space-saving SOT-23 (DBV) package and operates over ajunction temperature
range of -40°C to 125°C.
AVAILABLE OPTIONS
VOLTAGE
TJ
-40°C to 125°C
PACKAGE
PART NUMBER
SYMBOL
3V
TPS761300BVRt
TPS761300Bvrt
PAEI
3.2V
TPS761320BVRt
TPS761320Bvrt
PAFI
TPS761330BVRt
TPS761330Bvrt
PAil
TPS761380BVRt
TPS761380BVrt
PAKI
TPS761500BVRt
TPS761500BVrt
PAll
3.3V
SOT-23
(OBV)
3.8V
5V
t The OBVR passive Indicates tape and reel of 3000 parts.
:j: The OBVT passive indicates tape and reel of 250 parts.
functional block diagram
IN - - - - - - - . . ,
OUT
EN------....,
Sense
GND
----"J..
§ Current sense
=c:n':':1:=:IlIIs~~':'::!'::=m:
oIandanl WIITOnty. ProcIUCllon processing does not n.......lty Inctudo
tasting of all paramalorl.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
Copyright © 1999. Texas instruments incorporated
2-221
TPS76130, TPS76132, TPS76133, TPS76138,TPS76150
LOW-POWER 100-mA LOW-DROPOUT LINEAR REGULATORS
SLVS178A - DECEMBER 1998 - REVISED FEBRUARY 1999
Terminal Functions
TERMINAL
NAME
NO.
EN
3
GND
2
IN
1
NC
4
OUT
5
110
I
DESCRIPTION
Enable input
Ground
I
Input voltage
No connection
0
Regulated output voltage
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)t
Input voltage range, VI (see Note 1) ....................................................... -0.3 V to 16 V
Voltage range at EN ................................................................. -0.3 V to VI + 0.3 V
Peak output CUirent ................................•................... , .......... internally limited
Continuous total dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. See Dissipation Rating Table
Operating junction temperature range, TJ ........................................... -40°C to 150°C
Storage temperature range, Tstg ......................................................... -65°C to 150°C
ESD rating, HBM ......................................................................... 1.5 kV
t Stresses beyond those listad under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not
implied. Exposure to absolute-maxi mum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltages are with respect to device GND pin.
DISSIPATION RATING TABLE
PACKAGE
TAS25°C
POWER RATING
DERATING FACTOR
ABOVE TA 25°C
=
=
=
TA 85°C
POWER RATING
TA 70°C
POWER RATING
Recommended
DBV
350mW
3.5mWI"C
192mW
140mW
Maximum
DBV
437mW
3.5mWI"C
280mW
227mW
recommended operating conditions
MIN
Input voltage, VI
MAX
UNIT
3.35
16
TPS76132
3.58
16
TPS76133
3.68
16
TPS76138
4.18
16
TPS76150
5.38
16
0
100
mA
-40
125
°C
Continuous output current, 10
Operating junction temperature, TJ
~TEXAS
2-222
NOM
TPS76130
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS. TEXAS 75265
V
TPS76130, TPS76132, TPS76133, TPS76138, TPS76150
LOW-POWER 100-mA LOW-DROPOUT LINEAR REGULATORS
SLVS178A- DECEMBER 1998 - REVISED FEBRUARY 1999
electrical characteristics over recommended operating free-air temperature range,
VI =VO(typ) + 1 V, 10 1 mA, EN =V.. Co =4.71lF (unless otherwise noted)
=
PARAMETER
TEST CONDITIONS
TJ = 25°C
TPS76130
TJ = 25°C,
1 rnA < 10< 100 rnA
1 rnA
I
I
"-
2.99
GI
I
~
'5
12.
'5
"'-
>
.....
I
'" '"
2.96
2.95
2.94
o
3.29
~
3.28
!0
3.27
"
'~
'" "-
""
I
~
.....
100
3.26
3.25
.....
3.24
120
o
20
40
TPS76130
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
I
\
I
t
~
i
0
~
5
4.99
4.98
4.97
3.01
I
'"I'"
2.98
~
'5
2.97
'" " "
!
0
20
40
80
60
10 - Output Current - mA
100
II =1
~A
2.98
/
2.95
IL=100mA ...........
1'0...
I
~
120
2.94
2.93
I
-...... ~
'"
2.99
GI
I
r--...
o
/'" ~
3
>
4.96
4.95
3.02
I
VI=6V
CI=CO=4.7IlF
TA=25°C
"
120
Figure 2
TPS76150
5.02
"
100
80
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
5.03
5.01
60
10 - Output Current - mA
Figure 1
>
I
..... ~
'5
40
60
80
10 - Output Current - mA
20
GI
J
.....
.....
I
VI =4.3V
CI=CO=4.7IlF TA = 25°C
3.31
3.3
2.97
~
3.32
I
VI=4V
CI=CO=4.7IlF TA = 25°C
2.98
0
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
I
I
"
t-- VI=4 V
"\
CI = Co = 4.71lF
2.92
2.91
-80 -40
~O
0
20
..... ~
40
60
,
80 100 120 140
TA - Free-Air Temperature - °C
Figure 4
Figure 3
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-225'
TPS76130, TPS76132,TPS76133, TPS76138,TPS76150
LOW-POWER 10D-mA LOW-DROPOUT LINEAR REGULATORS
SLVS178A - DECEMBER 1998 - REVISED FEBRUARY 1999
TYPICAL CHARACTERISTICS
3.32
&
3.28
I
i
i'5
0
3.27
3.26
~ i"-
>
I
&
:i
~
'5
'-
b 3.24
IL=1oomA
~
VI=4.3V
CI = Co = 4.7 J1I'
3.22
3.21
-eo -40
-
4.98
,
:!!!!
3.25
3.23 _
5
5.02
-
IL=1 mA
3.3
>
TPS76150
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
'", '"
3.31
3.29
TPS76133
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
"-
r--
0
b
'"
I'-.
4.96
"~
4.9
-eo
Figure 6
TPS76130
TPS76133
GROUND CURRENT
vs
FREE-AIR TEMPERATURE
104
-
1=
VI=4.3V
~ CI=CO=4.7I1F
IL=1OOmA -
IL=100mA -
r
1
103
I
j
1 102
"
VI=6V
CI= Co = 4.7 I1F
l"I
I I I
-40 -20
0 20 40 60 60 100 120 140
TA - Free-Air Tempereture _·C
GROUND CURRENT
vs
FREE-AIR TEMPERATURE
:: VI=4V
- CI=CO=4.7J11'
---
i""
' " IL = 100 mA
4.92
I'
......... ........
.......
4.94
FigureS
104
"'-
~
0 20 40 60 60 100 120 140
TA - Free-Air Temperature - DC
-20
IIL=1 mA ........
I-
I
IL=50mA
I
IL=50 mA
IL=1 mA
IL=1 mA
CJ
101
101
-eo -40
-20 0 20 40 60 60 100 120 140
TA - Free-Air Temperature _·C
-eo -40
Figure 7
0 20 40 60 80 100 120 140
TA - Free-Air Tempereture _·C
FigureS
:ilTEXAS
2-226
-20
INSTRUMENTS
POST OFFICE BOX 655303 • DAllAS. TEXAS 75265
TPS76130,TPS76132,TPS76133,TPS76138,TPS76150
LOW-POWER 100-mA LOW-DROPOUT LINEAR REGULATORS
SLVS178A - DECEMBER 1998 - REVISED FEBRUARY 1999
TYPICAL CHARACTERISTICS
TPS76150
GROUND CURRENT
OUTPUT NOISE
vs
FREQUENCY
vs
FREE-AIR TEMPERATURE
I I ::'-:1;:~~V
= VI=6V
=
CI=CO=4.7IlF
IL=100mA :
1~=sJmAI
CL=2.2IlFIL= 1 mA
l!:>
I
..."
1~
Iz
~;"'p. ~
CL~,1011l~
\
IL= 100mA
f
I
i
IIIIII~~
CL = 10 IlF
IL= 1 mA
~
IL=1 mA
IX
1.1LD'
~
10-7
"
1\
0
I
~
103
104
f - Frequency - Hz
101
-60 -40 -20 0 20 40 60 80 100 120 140
TA - Free-Air Temperature - ·C
Figure 9
Figure 10
TPS76130
DROPOUT VOLTAGE
OUTPUT IMPEDANCE
vs
vs
FREQUENCY
FREE-AIR TEMPERATURE
300
=
CL=2.2IlF
IL=50mA\ -
CL=12~(
IL= 1
I
F IL=100mA
CL=2.2,.F
f\.. .AaI'
~
E
~
CL= 10J.l~/
IL=100mA
'S
e
Q
I
102
103
104
50
105
10-
,....
,....
1--1--+-"
10-
~
~
I
101
100
IL = 50 mA ,..-- I""'"
~
0
~
~
l-"' ~
150
8.
I
CL ;~OJ.l~
IL=
200
:!
~I'ft.'
..IL= 100
1. mAl""""" ~ i-"""
J..--'"
>
I
CL=10J.lF
IL=1 mA
1
250
GI
aI
L
.1
VI= EN=2.9V
CI = Co= 4.71lF
1
o
IL=OmA
i~1
-60 -40 -20
f - Frequency - Hz
IL= 1 mA
1
0
20
40
60
80 100 120 140
TA - Free-Air Temperature - ·C
Figure 11
Figure 12
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS. TEXAS 75265
2-227
TPS76130, TPS76132,TPS76133, TPS76138, TPS76150
LOW-POWER 100-mA LOW-DROPOUT LINEAR REGULATORS
SLVS17BA - DECEMBER 199B - REVISED FEBRUARY 1999
TYPICAL CHARACTERISTICS
TPS76130
LINE TRANSIENT RESPONSE
7
>
I
III
I
!
C
E
I
C
~
II
30
~
5
'S
f
0
4
I
I
:>
>
.5 E
I
I
10
P
100
:0-
10
0
V
1'5
a. -10
<1'5
c E
I~
~~
alGI
Cal
!!
(J~
20
.9
20
.; I
f\
50
V
alGI
Cal
!!
0
? s.
-50
(J~
1-
?
o
I:-
<18
-20
-50
o
-100
-300 -200 -100
50 100 150 200 250 300 350 400 450
I-Time-IIS
Figure 13
8
>
I
TPS76150
LOAD TRANSIENT RESPONSE
1
30
C
20
GI
7
~
'S
a.
.5
I
:>
>E
30
I
20
.9
I
10
0
is '0
-10
I:>
~
(J
':'
i~
Cal
illS
~
\
J
6
~i -20
0-30
-50
~I\
I\A
v
>
C
E
Gil
alGI
10
o
:::
100
50
Cal
!!
(J~
1-
?s.
<1'5
CO=4.7I1F
IL= 100mA
o
.1
,I
0
50 100 150 200 250 300 350 400 450
I-Tlme-IIS
.1
1\ 1\
IV
Or-
II
-5O
-100
-300 -200 -100 0
Figure 15
100 200 300 400 500 600 700
I-Tlme-IIS
Figure 16
~TEXAS
2-228
,..
Co = 4.711F
I
I
0 100 200 300 400 500 600 700
1- Time-lIS
Figure 14
TPS76150
LINE TRANSIENT RESPONSE
C
Co = 4.711F
(J
~
'5
a.
.5
III
40
I
Co = 4.7 IIF
IL= 100mA
6
al
'I
TPS76130
LOAD TRANSIENT RESPONSE
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS76130, TPS76132, TPS76133,TPS76138, TPS76150
LOW-POWER 100-mA LOW-DROPOUT LINEAR REGULATORS
SLVS178A - DECEMBER 1998 - REVISED FEBRUARY 1999
APPLICATION INFORMATION
r5=---....._ OUT
IN-.----'-I
CI=1I1F
T
TPS761xx
T
Co =4.7I1F
-::-
EN----'3'-1
2
GND
Figure 17. TPS761xx Typical Application
over current protection
The over current protection circuit forces the TPS761 xx into a constant current output mode when the load is
excessive or the output is shorted to ground. Normal operation resumes when the fault condition is removed.
NOTE:
An overload or short circuit may also activate the over temperature protection if the fault
condition persists.
over temperature protection
The thermal protection system shuts the TPS761 xx down when the junction temperature exceeds 160°C. The
device recovers and operates normally when the temperature drops below 150°C.
input capacitor
A 1-I1F or larger ceramic decoupling capacitor with short leads connected between IN and GND is
recommended. The decoupling capacitor may be omitted if there is a 1 I1F or larger electrolytic capacitor
connected between IN and GND and located reasonably close to the TPS761 xx. However, the small ceramic
device is desirable even when the larger capacitor is present, if there is a lot of high frequency noise present
in the system.
output capacitor
Like all low dropout regulators, the TPS761 xx requires an output capacitor connected between OUT and GND
to stabilize the internal control loop. The minimum recommended capacitance value is 4.7 I1F and the ESR
(equivalent series resistance) must be between 0.1 Q and 10 Q. Solid tantalum electrolytic, aluminum
electrolytic, and multilayer ceramic capacitors are all suitable, provided they meet the requirements described
above. Most of the commercially available 4.7-I1F surface-mount solid-tantalum capacitors, including devices
from Sprague, Kemet, and Nichicon, meet the ESR requirements stated above. Multilayer ceramic capacitors
should have minimum values of 4.7 I1F over the full operating temperature range of the equipment.
enable (EN)
A logic zero on the enable input shuts the TPS761 xx off and reduces the supply current to less than 1 ~. Pulling
the enable input high causes normal operation to resume. If the enable feature is not used, EN should be
connected to IN to keep the regulator on all of the time. The EN input must not be left floating.
reverse current path
The power transistor used in the TPS761xx has an inherent diode connected between IN and OUT as shown
in the functional block diagram. This diode conducts current from the OUT terminal to the IN terminal whenever
IN is lower than OUT by a diode drop. This condition does not damage the TPS761xx provided the current is
limited to 150 mAo
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-229
2-230
TPS76301, TPS76316, TPS76318, TPS76325, TPS76327
TPS76328, TPS76330, TPS76333, TPS76338, TPS76350
LOW-POWER 150-mA LOW-DROPOUT
LINEAR REGULATORS
SLVS181D - DECEMBER 1998 - REVISED JUNE 1999
DBVPACKAGE
{TOP VIEW)
• 150-mA Low-Dropout Regulator
• Output Voltage: 5 V, 3.8 V, 3.3 V, 3.0 V, 2.8 V,
2.7 V, 2.5 V, 1.8 V, 1.6 V and Variable
IN U S OUT
• Dropout Voltage, Typically 300 mV
at 150 mA
• Thermal Protection
• Over Current Limitation
• Less Than 2-IlA Quiescent Current in
Shutdown Mode
GND
2
EN
3
4
NCfFB
• -40°C to 125°C Operating Junction
Temperature Range
• 5-Pln SOT-23 (DBV) Package
description
The TPS763xx family of low-dropout (LDO) voltage regulators offers the benefits of low-dropout voltage,
low-power operation, and miniaturized packaging. These regulators feature low dropout voltages and quiescent
currents compared to conventional LDO regulators. Offered in 5-terminal small outline integrated-circuit
SOT-23 package, the TPS763xx series devices are ideal for cost-sensitive designs and where board space is
at a premium.
A combination of new circuit design and process innovation has enabled the usual pnp pass transistor to be
replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the
dropout voltage is very low-typically 300 mV at 150 mA of load current (TPS76333)-and is directly
proportional to the load current. Since the PMOS pass element is a voltage-driven device, the quiescent current
is very low (140 IJ.A maximum) and is stable over the entire range of output load current (0 mA to 150 mA).
Intended for use in portable systems such as laptops and cellular phones, the low-dropout voltage feature and
low-power operation result in a significant increase in system battery operating life.
The TPS763xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current
to 11J.A maximum atTJ =25°C.The TPS763xx is offered in 1.6-V,1.S-V, 2.5-V, 2.7-V, 2.S-V, 3.0-V, 3.3-V, 3.S-V,
and 5-V fixed-voltage versions and in a variable version (programmable over the range of 1.5 V to 6.5 V.
AVAILABLE OPTIONS
TJ
-40°C to 12SoC
VOLTAGE
PACKAGE
PART NUMBER
SYMBOL
Variable
TPS76301DBVrt
TPS76301 DBVR+
PAZI
1.6V
TPS76316DBvrt
TPS76316DBVR+
PBHI
1.8V
TPS76318DBVTt
TPS76318DBVR+
PBAI
2.SV
TPS7632SDBVTt
TPS7632SDBVR'i:
PBBI
TPS76327DBVTt
TPS76327DBVR:I:
PBCI
PBDI
2.7V
2.8V
SOT-23
(DBV)
TPS76328DBvn
TPS76328DBVR:I:
3.0V
TPS76330DBVrt
TPS76330DBVR:I:
PBII
3.3V
TPS76333DBVTt
TPS76333DBVR:I:
PBEI
3.8V
TPS76338DBvn
TPS76338DBVR:I:
PBFI
S.OV
TPS76350DBvn
TPS763S0DBVR:I:
PBGI
t The DBVT passive indicates tape and reel of 2S0 parts.
:I: The DBVR passive indicates tape and reel of 3000 parts.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
Copyright © 1999, Texas Instruments Incorporated
2-231
TPS76301,TPS76316,TPS76318,TPS76325,TPS76327
TPS76328,TPS76330,TPS76333,TPS76338,TPS76350
LOW-POWER 150-mA LOW-DROPOUT LINEAR REGULATORS
SLVS181D- DECEMBER 1998- REVISED JUNE 1989
functional block diagram
TPS76301
IN - - - - - - - - - - - . - , , - - - - i
EN - - - - - - ,
J----OUT
~-+-----------------FB
TPS763161 181 251 271 28130/331 381 50
IN - - - - - - - - - - - . - , ,-----(
EN - - - - - - ,
1----e..... OUT
Terminal Functions
TERMINAL
NAME
GND
EN
DESCRIPTION
.1/0
Ground
Enable Input
FB
I
I
Feedback voltage (TPS76301 only)
IN
I
Input supply voltage
0
Regulated output voltage
NC
OUT
No connection (fixed-voltage option only)
~1EXAS
2-232
INSTRUMENTS
POST OFFICE BOX 855303 • DALLAS, TEXAS 75265
TPS76301, TPS76316, TPS76318, TPS76325, TPS76327
TPS76328, TPS76330, TPS76333, TPS76338, TPS76350
LOW-POWER 150-mA LOW-DROPOUT
LINEAR REGULATORS
SLVS181D - DECEMBER 1998 - REVISED JUNE 1999
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)t
Input voltage range (see Note 1) .................................................... -0.3 V to 10 V
Voltage range at EN .......................................................... -0.3 V to VI + 0.3 V
Voltage on OUT, FB .......................................................................... 7 V
Peak output current ............................................................. Internally limited
ESD rating, HBM ......................................................................... 2 kV
Continuous total power dissipation ..................................... See dissipation rating tables
Operating virtual junction temperature range, TJ .................................... -40°C to 150°C
Storage temperature range, Tstg .................................................. -65°C to 150°C
t Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those Indicated under "recommended operating conditions" is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values are with respect to network ground terminal.
DISSIPATION RATING TABLE
PACKAGE
TA~25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
TA=70°C
POWER RATING
TA = 85°C
POWER RATING
Recommended
DBV
350mW
3.5mW/"C
192mW
140mW
Maximum
DBV
437mW
3.5mW/"C
280mW
227mW
recommended operating conditions
MIN
Input voltage, Vlt
Continuous output current, 10
Operating junction temperature, TJ
NOM
MAX
UNIT
2.7
10
V
0
150
mA
-40
125
°C
t To calculate the minimum input voltage for your maximum output current, use the following equation: VI(min) = VO(max) + VDO(max load)
~1ExAs
INSTRUMENTS
POST OFFICE BOX 655303 -·DALLAS, TEXAS 75265
2-233
TPS76301, TPS76316, TPS76318, TPS76325, TPS76327
TPS76328, TPS76330, TPS76333, TPS76338, TPS76350
LOW-POWER 150-mA LOW-DROPOUT LINEAR REGULATORS
SLVS181 D - DECEMBER 1998 - REVISED JUNE 1999
electrical characteristics over recommended operating free-air temperature range, VI =VO(typ) +
1 V, 10= 1 mA, EN = IN, Co = 4.71lF (unless otherwise noted)
MIN
TYP
MAX
0.98VO
Vo
1.02VO
0.97VO
Vo
1.03VO
0.98VO
Vo
1.02VO
0.97VO
Vo
1.03VO
0.975VO
Vo
1.025VO
O.9625VO
Vo
i.0375VO
1.568
1.6
1.832
1.552
1.6
1.848
1.568
1.6
1.632
1.6
1.648
1.560
1.6
1.640
1.536
1.6
1.664
VI = 2.7 V,
1 mA< 1ft < 75 mA,
TJ = 25°
1.764
1.8
1.836
VI=2.7V,
1 mA<10<75mA
1.746
1.8
1.854
VI = 3.25 V,
1 mA< 18 < 100 mA,
TJ = 25°
1.764
1.8
1.836
VI = 3.25 V,
1mA<10<100mA
1.746
1.8
1.854
VI = 3.25 V,
1 mA< 18 < 150 mA,
TJ = 25°
1.755
1.8
1.645
VI = 3.25 V,
1 mA< 10< 150mA
1.733
1.8
1.867
10=1 mAl0100mA,
TJ = 25°C
2.45
2.5
2.55
2.425
2.5
2.575
2.438
2.5
2.562
2.407
2.5
2.593
2.646
2.7
2.754
2.619
2.7
2.781
2.632
2.7
2.767
2.599
2.7
2.601
2.744
2.8
2.856
2.716
2.8
2.884
2.73
2.8
2.87
2.695
2.8
2.905
2.94
3.0
3.06
2.91
3.0
3.09
2.925
3.0
3.075
2.868
3.0
3.112
PARAMETER
TEST CONDITIONS
TPS76301
TPS76316
Vo
Oulput voltage
TPS76318
TPS76325
3.25 V > VI :2: 2.7 V,
2.5 V:2:VO:2: 1.5 V,
10=1 mAl075mA,
TJ = 25°C
3.25 V > VI :2:2.7 V,
2.5V:2:VO:2: 1.5 V
10 = 1 mA 10 75 mA,
VI:2:3.25V,
5 V:2:VO:2:1.5V
10=1 mAl0100mA,
TJ = 25°C
VI:2:3.25V,
5V:2:VO:2:1.5V
10=1 mAl0100mA,
VI:2:3.25V,
5 V:2:VO:2:1.5V
10= 1 mAio 150mA,
TJ = 25°C
V! :2: 3.25 V,
5V;"VO:2:1.5V
10= 1 mAio 150 mA,
VI=2.7V,
1 mA< 1ft < 75 mA,
TJ = 25°
VI=2.7V,
1 mA<10<75mA
VI = 3.25 V,
1 mA<18<100mA,
TJ = 25°
VI = 3.25 V,
1 mA<10<100mA
1.552
VI = 3.25 V,
1 mA<18<150mA,
TJ = 25°
VI = 3.25 V,
1mA<10<150mA
10=1 mAt0100mA
10=1 mAto 150 mA,
TJ = 25°C
10=1 mAio 150mA
10=1 mAt0100mA,
TPS76327
TJ = 25°C
10=1 mAl0100mA
10=1 mAt0150mA,
TJ = 25°C
10=1 mAio 150mA
10=1 mAl0100mA,
TPS76328
TJ = 25°C
10=1 mAt0100mA
10=1 mAio 150mA,
TJ = 25°C
10=1 mAio 150mA
10=1 mA10100mA,
TPS76330
TJ = 25°C
10=1 mAl0100mA
10=1 mAt0150mA,
TJ = 25°C
10=1 mAt0150mA
~TEXAS
2-234
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
UNIT
V
V
V
V
V
V
V
TPS76301, TPS76316,TPS76318, TPS76325, TPS76327
TPS76328, TPS76330, TPS76333, TPS76338,TPS76350
LOW-POWER 150-mA LOW-DROPOUT
LINEAR REGULATORS
SLVS181 D - DECEMBER 1998 - REVISED JUNE 1999
electrical characteristics over recommended operating free-air temperature range, VI = VO(typ) +
1 V, 10= 1 mA, EN = IN, Co = 4.71lF (unless otherwise noted) (continued)
10=1 rnA to 100 rnA,
TPS76333
TJ = 25°C
10=1 rnA to 100 rnA
10= 1 rnA to 150 rnA,
TJ = 25°C
10 = 1 rnA to 150mA
10=1 rnA to 100 rnA,
Vo
Output voltage
TPS76338
TJ = 25°C
10=1 mAt0100mA
10=1 rnA to 150 rnA,
TJ = 25°C
10 = 1 rnA to 150 rnA
10=1 rnA to 100 rnA,
TPS76350
TJ = 25°C
10=1 rnA to 100 rnA
10 = 1 rnA to 150 rnA,
TJ = 25°C
10=1 rnA to 150 rnA
1(0)
Ouiescent current
(GND terminal current)
Standby current
Vn
PSRR
3.234
3.3
3.366
3.201
3.3
3.399
3.218
3.3
3.382
3.177
3.3
3.423
3.724
3.8
3.876
3.705
3.8
3.895
3.686
3.8
3.914
3.667
3.8
3.933
4.875
5
5.125
4.825
5
5.175
4.750
5
5.15
5
5.20
85
100
4.80
10=Ot0150mA,
TJ = 25°C, See Note 2
10= Oto 150 rnA,
See Note 2
EN<0.5V,
TJ = 25°C
140
0.5
1
Output noise voltage
Co'" 101lF,
See Note 2
140
Ripple rejection
1=1 kHz, Co=10IlF,
TJ '" 25°C, See Note 2
60
TJ '" 25°C,
See Note 3
0.8
1.5
Output voltage line regulation
(/NoNo) (see Note 4)
VO+1V 2.5 V and Vimax = 10V, Vimin =VO + 1 V:
Vohmax - (vO
Line Reg. (mV) = (%/V) x
+
100
1)) x 1000
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-235
TPS76301, TPS76316, TPS76318, TPS76325, TPS76327
TPS76328, TPS76330, TPS76333, TPS76338, TPS76350
LOW-POWER 15D-mA LOW-DROPOUT LINEAR REGULATORS
SLVS181 D - DECEMBER 1998 - REVISED JUNE 1999
electrical characteristics over recommended operating free-air temperature range, VI = VO(typ) +
1 V, 10= 1 mA, EN = IN, Co = 4.7 ~F (unless otherwise noted) (continued)
.
PARAMETER
TEST CONDITIONS
MIN
TYP
TJ = 25°C
10=1 mA,
TJ = 25°C
3
10=50mA,
TJ = 25°C
120
10=50mA
TPS76325
10=75mA,
TJ=25°C
180
IO~
TJ = 25°C
240
TJ = 25°C
360
Dropout voltage
TPS76333
10=OmA,
TJ = 25°C
10=1 mA,
TJ = 25°C
3
10=50mA,
TJ = 25°C
100
TJ = 25°C
150
TJ = 25°C
200
TJ = 25°C
300
TJ = 25°C
TJ = 25°C
2
10=50mA,
TJ = 25°C
60
375
75
100
TJ = 25°C
90
113
150
10=75mA
TJ = 25°C
120
150
200
10=1oomA
TJ = 25°C
10= 150mA
~TEXAS
2-236
250
0.2
10=50mA
10= 150mA,
mV
500
10=OmA,
10= 1oomA,
188
333
10=1 mA,
10 =75 mA,
125
250
10=150mA
TPS76350
450
166
10=1OOmA
10= 150mA,
300
0.2
10=75mA
10= 1OOmA,
mV
500
10=50mA
VDO
225
400
150m.ll.
10=75mA,
150
300
10=100mA
10= 150mA,
UNIT
200
10=75mA
10= 100mA,
MAX
0.2
10=OmA,
INSTRUMENTS
POST OFFICE SOX 655303 • DALLAS. TEXAS 75265
180
225
300
mV
TPS76301, TPS76316,TPS76318, TPS76325, TPS76327
TPS76328, TPS76330, TPS76333, TPS76338, TPS76350
LOW-POWER 150-mA LOW-DROPOUT LINEAR REGULATORS
SLVS181D - DECEMBER 1998 - REVISED JUNE 1999
TYPICAL CHARACTERISTICS
TPS76325
TPS76318
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
2.505
2.5
>
I
t
~
Ib
2.495
2.49
2.485
>'
2.48
2.475
'"'"
'"""
o
30
I
4.99
GI
I
~
!i
4.98
;-
0
I
-
> 1.795
I
&
J!! 1.790
;e
'[ 1.785
~
""""
150
~
1.780
1.770
180
o
30
"'"
120
90
10 - Output Current - mA
2.53
I
CI = Co = 4.71!F
TA = 25°C
Pulse Tested
VI =3.5V
CI=CO=4.7I!F
-
2.52
>
I
GI
2.51
CI
4.96
10=1 mA
:!!!
.......
-?
~
60
180
Figure 2
TPS76325
'""- "
'"
150
60
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
" '"
30
'" "
1.775
VI~6V
o
'" '"""
VI =3.5V
CI = Co = 4.71!F
TA=25°C
Pulse Tested
TPS76350
4.97
4.95
1.800
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
5.01
>
1.805
I
60
120
90
10 - Output Current - mA
Figure 1
5
I
VI=3.5V
CI = Co = 4.71!F
TA = 25°C
Pulse Tested
!i
-"
/'
/
2.5
;-
0
f'......
120
90
10 - Output Current - mA
~
~
150
180
2.49 ~ 10= 150 mA
t"--r--2.48
2.47
-05 -35
-15
t"-5
25
45
65
85
105 125
TA - Free-Air Temperature - °C
Figure 3
Figure 4
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-237
TPS76301, TPS76316, TPS76318, TPS7632S, TPS76327
TPS76328, TPS76330, TPS76333, TPS76338, TPS76350
LOW-POWER 1SQ.mA LOW-DROPOUT LINEAR REGULATORS
SLVS181 D - DECEMBER 1998 - REVISED JUNE 1999
TYPICAL CHARACTERISTICS
TPS76318
TPS76350
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
1.82
1.81
...........
.........
I
I
......!0=1mA
I
1.79
...........
......
r--
1.76
>
5.04
•
5.02
f
'5
t
0
I
~
·1
·1
4.98
-
r-- -
-
10=1 mA
V
i"oo..
4.96
...........
...... ,"","-10 = 150 mA
4.92
1
-35 -15
5 25 45 65 85 105
TA - Free-Air Temperature - ·C
5
4.94
VI=3.5V
CI= Co = 4.7jL1'
1.75
-ss
5.06
- ---
'5 1.77
1.74
/
10= 150 mA
........... r--.,:.
1.78
VI=6V
CI=CO=4.7I1F
5.08
I
0
J>
./
1.8
>
fi
5.1
125
4.9
-ss
-35 -15
5 25 45 65 85 105 125
TA - Free-Air Temperature _·C
Figure 6
FigureS
TPS76350
OUTPUT NOISE
vs
FREQUENCY
GROUND CURRENT
vs
FREE-AIR TEMPERATURE
1000
VI=6V
CI =CO= 4.711F
10=0 mAand 150 mA
C
::!.
-
I
lc
3
100
j
li!l~I"
~
T~=12~.~11
10=150mA
/
I"'"
I
Co = 4.7 I1F
I'
~=150mA
~~
.......
"'l::::~
...
r--..... ...... i'r-r-.
/
~ ........i'.1'
Co = 4.711F
10=1 mA
CO= 10l1F
10=1mA
10
-ss
I
-35 -15
5 25 45 65 85 105 125
TA - Free-Air Temperature - ·C
Figure 7
INSTRUMENTS
POST OFFICE BOX 85530G • DALlAS, TEXAS 75265
10k
f - Frequency - Hz
FigureS
="lExAs
2-238
I I 111111
1k
100k
TPS76301, TPS76316, TPS76318, TPS76325, TPS76327
TPS76328, TPS76330, TPS76333, TPS76338, TPS76350
LOW-POWER 150-mA LOW-DROPOUT
LINEAR REGULATORS
SLVS181 D - DECEMBER 1998 - REVISED JUNE 1999
TYPICAL CHARACTERISTICS
TPS76325
DROPOUT VOLTAGE
OUTPUT IMPEDANCE
VB
VB
FREQUENCY
FREE-AIR TEMPERATURE
10
600
..i
VI = EN = 2.7 V
CI = CO=4.7I1F
500
>
Cl
E
I
I
J
!
I
r!i
~
10=1 mA
j
~
5
I"'"
400
300
8.
rf-
e
c
=
I
10=1~mA
0.1
...,.. ...,.. "........
~
V~
200
0
nn
10
f - Frequency - kHz
100
1 mA\
OmA\
100
ESR=1 D
0.1
0.01
1-
V
~
CII~II~~ ~I~.~ 11~ I
TA,~,25°C
J
150mA ,.,-
\
o
1000
\
,::..
-65 -35 -15
5 25 45 65 85 105 125
TA - Free-Air Temperature - °C
Figure 9
Figure 10
TPS76325
RIPPLE REJECTION
VB
FREQUENCY
~~~~nm~Tm~~m-~m-rm~
!"t. 11I1"1~
601:::tWfIi~~.&11 :ll~"I~
o
~rt~~~~~~~~~fTMffiI
~c ~w.~~~~~~~~mA
I'
~r+~~~~+m~~~Hti~~.
1 20r+~~~~+m~~~H#~~~~
I
40
ii!
o f-
=
Co 4.7 I1f
ESR = H1
TA=25°C
-H+HIIH-H+HIIH-H+HIIH-H+HltIII
-101 I II-111ft I 1I1IlilL
10
100
1k
10 k
100 k
1M
10 M
f - Frequency - Hz
Figure 11
~1ExAs
INSTRUMENTS
POST OFFICE BOX 855303 • DALLAS. TEXAS 75265
2-239
TPS76301, TPS76316, TPS76318, TPS76325, TPS76327
TPS76328,TPS76330,TPS76333,TPS76338,TPS76350
LOW-POWER 150-mA LOW-DROPOUT LINEAR REGULATORS
SLVS1B1D - DECEMBER 199B - REVISED JUNE 1999
TYPICAL CHARACTERISTICS
TPS76318
LINE TRANSIENT RESPONSE
TPS76318
LOAD TRANSIENT RESPONSE
~
I
>
I
J
4~t-~~~~~1I-j-t-1
~
200
a'S
100
3~~II~tll~~~ !
~
1
.5
I
I
~
_
o
Co = 4.7!1F
ESR.,.. a
.2
2r-~~--+--r~--+--+--r-~~
>"
~ f-
50
Co = 4.7 !1F
ESR=O.25n
TA=25°C
TA=25°C
I I I
>
cEo
el
11
o~ -50
1'5
~a.
'dv=...!...Y...
201---+---+--+--+---1--+--+---+---+---1
.5 E
& ~ 0 '"""'*"""",.......j--I-~=--...j,,...l~~~~
o
~l
I
I
I
"
C
,
E
C
~
1
I
0
'S
!0
I
l
la.
0
alGI
Cal
,
>E
a;'
aI GI
IIi
II
.c.t!
o~
I"
E
200
~
5
50
e
'I
TPS76350
LOAD TRANSIENT RESPONSE
c
dv_1Vdt - 10 ).IS
7
'5
a.
.5
60 80 100 120 140 160 180 200
t- Tlme-).IS
Figure 13
Figure 12
>'
i
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS76301, TPS76316,TPS76318, TPS76325,TPS76327
TPS76328,TPS76330,TPS76333,TPS76338,TPS76350
LOW-POWER 150-mA LOW-DROPOUT
LINEAR REGULATORS
SLVS181D - DECEMBER 1998 - REVISED JUNE 1999
TYPICAL CHARACTERISTICS
TYPICAL REGIONS OF STABILITY
TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE (CSR)t
COMPENSATION SERIES RESISTANCE (CSR)t
vs
vs
OUTPUT CURRENT
ADDED CERAMIC CAPACITANCE
100
Cl
Cl
OIl
c
j
1l
II:
~
I
I
u
i
..
J
j
i..c
I
a
c
8.
E
8I
E
8
0.1
0.1
I
~
II:
rn
u
0.1
10 - Output Current - rnA
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
Figure 16
Figure 17
TYPICAL REGIONS OF STABILITY
TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE (CSR)t
COMPENSATION SERIES RESISTANCE (CSR)t
vs
vs
OUTPUT CURRENT
ADDED CERAMIC CAPACITANCE
Cl
Cl
I
Ij
I
I
:I
~c
t
a
a
1
0.1
U
0.1
I
I
II:
II:
~
~
50
100
150
200
250
0.1
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
Added Ceramic Capacitance -I1F
10 - Output Current - rnA
Figure 18
t
1
Added Ceramic Capacitance - I1F
Figure 19
CSR refers to the total series resistance, including the ESR of the capacitor, any series resistance added externally, and PWB trace resistance
to CO.
~TEXAS
INSTRUMENTS
POST OFFICE sox 655303 • DALLAS, TEXAS 75265
2-241
TPS76301, TPS76316, TPS76318, TPS76325, TPS76327
TPS76328, TPS76330, TPS76333, TPS76338,TPS76350
LOW-POWER 15D-mA LOW-DROPOUT LINEAR REGULATORS
SLVS181D- DECEMBER 1998 - REVISED JUNE 1999
APPLICATION INFORMATION
The TPS763xx low-dropout (LOO) regulators are new families of regulators which have been optimized for use
in battery-operated equipment and feature extremely low dropout voltages, low quiescent current (140 /lA), and
an enable input to reduce supply currents to less than 2 /lA when the regulator is turned off.
device operation
The TPS763xx uses a PMOS pass element to dramatically reduce both dropout voltage and supply current over
more conventional PNP-pass-element LOO designs. The PMOS pass element is a voltage-controlled device
that, unlike a PNP transistor, does riot require increased drive current as output current increases. Supply
current in the TPS763xx is essentially constant from no-load to maximum load.
Current limiting and thermal protection prevent damage by excessive output current and/or power dissipation.
The device switches into a constant-current mode at approximately 1 A; further load reduces the output voltage
instead of increasing the output current. The thermal protection shuts the regulator off if the junction temperature
rises above 165°C. Recovery is automatic when the junction temperature drops approximately 25°C below the
high temperature trip point. The PMOS pass element includes a back diode that safely conducts reverse current
when the input voltage level drops below the output voltage level.
A logic low on the enable input, EN shuts off the output and reduces the supply current to less than 2 /lA. EN
should be tied high in applications where the shutdown feature is not used.
A typical application circuit is shown in Figure 20.
TPS763xxt
1
IN
NC/FB
OUT
C1
1r,tF ;:::::;
-
4
5
3
Vo
_.----,
I
r-
EN
GND
2
I ;:
+
:::; 4.7r,tF
I
I
L_
I
I
CSR=1
___g
_ oJI
1-'
L..
tTPS76316, TPS76318, TPS76325, TPS76327, TPS76328, TPS7630 TPS76333, TPS76338,
TPS76350 (fixed-voltage options).
Figure 20. Typical Application Circuit
:illExAs
2-242
INSTRUMENTS
POST OFFICE BOX 655303 • DAUAS, TEXAS 75265
TPS76301, TPS76316,TPS76318, TPS76325,TPS76327
TPS76328, TPS76330, TPS76333, TPS76338, TPS76350
LOW-POWER 150-mA LOW-DROPOUT LINEAR REGULATORS
SLVS181D - DECEMBER 1998 - REVISED JUNE 1999
APPLICATION INFORMATION
external capacitor requirements
Although not required, a 0.047-~F or larger ceramic bypass input capacitor, connected between IN and GNO
and located close to the TPS763xx, is recommended to improve transient response and noise rejection. A
higher-value electrolytic input capacitor may be necessary if large, fast-rise-time load transients are anticipated
and the device is located several inches from the power source.
Like all low dropout regulators, the TPS763xx requires an output capacitor connected between OUT and GNO
to stabilize the internal loop control. The minimum recommended capacitance value is 4.7 ~F and the ESR
(equivalent series resistance) must be between 0.2 0 and 10 Q. Capacitor values 4.7 ~F or larger are
acceptable, provided the ESR is less than 100. Solid tantalum electrolytic, aluminum electrolytic, and multilayer
ceramic capaCitors are all suitable, provided they meet the requirements described above. Most of the
commercially available 4.7 ~F surface-mount solid tantalum capacitors, including devices from Sprague,
Kemet, and Nichico, meet the ESR requirements stated above. Multilayer ceramic capacitors should have
minimum values of 1 ~F over the full operating temperature range of the equipment.
CAPACITOR SELECTION
PART NO.
T4948475K016AS
MFR.
VALUE
KEMET
4.7~F
1.50
SIZE (H x L x W)t
1.9 x 3.5 x 2.8
1950106x0016x2T
SPRAGUE
10 ~F
1.50
1.3x7.0x2.7
6950106x003562T
SPRAGUE
10 ~F
1.30
2.5 x 7.6 x 2.5
AVX
4.7~F
0.60
2.6 x 6.0 x 3.2
TPSC475K035R0600
t
MAX ESRt
Size is in mm. ESR is maximum resistance in ohms at 100 kHz and TA
=25°C. Listings are sorted by height.
output voltage programming
The output voltage of the TPS76301 adjustable regulator is programmed using an external resistor divider as
shown in Figure 21. The output voltage is calculated using:
Vo
= 0.995
x V ref x (1
+ ~~)
(1)
Where
Vref = 1.192 V typ (the internal reference voltage)
0.995 is a constant used to center the load regulator (1 %)
Resistors R1 and R2 should be chosen for approximately 7-~ divider current. Lower value resistors can be
used but offer no inherent advantage and waste more power. Higher values should be avoided as leakage
currents at FB increase the output voltage error. The recommended design procedure is to choose
R2 = 169 kO to set the divider current at 7 ~ and then calculate R1 using:
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-243
TPS76301,TPS76316,TPS76318,TPS76325,TPS76327
TPS76328, TPS76330, TPS76333, TPS76338, TPS76350
LOW-POWER 150-mA LOW-DROPOUT LINEAR REGULATORS
SLVS1B1D-DECEMBER 1998-REVISEDJUNE 1999
APPLICATION INFORMATION
(2)
OUTPUT VOLTAGE
PROGRAMMING GUIDE
OUTPUT
VOLTAGE
(V)
R1
2.5
187
301
3.3
3.6
4
5
TPS76301
DIVIDER RESISTANCE
(kn)t
348
402
549
750
6.45
t 1% values shown.
R2
169
169
169
169
169
169
OUT ...,5"----.._ _..-_ Vo
~2V
S;O.5V
I
3
R1,._
EN
FB
4
GND
2
R2
_ _ _ _ "I
If~4.7I1F
I
IL
II
I
CSR=HI
_ _ _ _ oJ
Figure 21. TPS76301 Adjustable LOO Regulator Programming
power dissipation and Junction temperature
Specified regulator operation is assured to a junction temperature of 125°C; the maximum junction temperature
allowable to avoid damaging the device is 150°C. This restriction limits the power disSipation the regulator can
handle in any given application. To ensure the junction temperature is within acceptable limits, calculate the
maximum allowable dissipation, PO(max), and the actual dissipation, Po, which must be less than or equal to
PO(max)·
The maximum-power-dissipation limit is determined using the following equation:
P
_ TJmax - TA
O(max) R-eJA
Where
TJmax is the maximum allowable junction temperature
RaJA is the thermal resistance junction-to-ambient for the package, i.e., 285°C/W for the 5-terminal
SOT23.
TA is the ambient temperature.
The regulator dissipation is calculated using:
Power dissipation resulting from quiescent current is negligible.
~TEXAS
2-244
INSTRUMENTS
POST OFFICE BOX 655303 • DAL.LAS. TEXAS 75265
TPS76301, TPS76316,TPS76318, TPS76325, TPS76327
TPS76328, TPS76330, TPS76333, TPS76338, TPS76350
LOW-POWER 150-mA LOW-DROPOUT LINEAR REGULATORS
SLVS181 D - DECEMBER 1998 - REVISED JUNE 1999
APPLICATION INFORMATION
regulator protection
The TPS763xx pass element has a built-in back diode that safely conducts reverse currents when the input
voltage drops below the output voltage (e.g., during power down). Current is conducted from the output to the
input and is not internally limited. If extended reverse voltage is anticipated, external limiting might be
appropriate.
The TPS763xx also features internal current limiting and thermal protection. During normal operation, the
TPS763xx limits output current to approximately 800 mAo When current limiting engages, the output voltage
scales back linearly until the overcurrent condition ends. While current limiting is designed to prevent gross
device failure, care should be taken not to exceed the power dissipation ratings of the package. If the
temperature of the device exceeds 165°C, thermal-protection Circuitry shuts it down. Once the device has
cooled down to below 140°C, regulator operation resumes.
~1ExAs
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-245
2-246
TPS76425, TPS76427,TPS76428, TPS76430, TPS76433
LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATORS
SLVSl80A - MARCH 1999 - REVISED JUNE 1999
DBVPACKAGE
{TOP VIEW)
• 150-mA Low Noise, Low-Dropout Regulator
• Output Voltage: 2.5 V, 2.7 V, 2.8 V, 3.0 V, 3.3 V
• Output Noise Typically 50 IlV
• Quiescent Current Typically 85
IN U S OUT
IlA
• Dropout Voltage, Typically 300 mV
at 150 mA
GND
2
EN
3
4
BYPASS
• Thermal Protection
• Over Current Limitation
• Less Than 2-1lA Quiescent Current in
Shutdown Mode
• -40°C to 125°C Operating Junction
Temperature Range
• 5-Pin SOT-23 (DBV) Package
description
The TPS764xx family of low-dropout (LOO) voltage regulators offers the benefits of a low noise, low-dropout
voltage, low-power operation, and miniaturized package. Additionally, they feature low quiescent current when
compared to conventional LOO regulators. Offered in 5-terminal small outline integrated-circuit SOT-23
package, the TPS764xx series devices are ideal for low-noise applications, cost-sensitive designs and
applications where board space is at a premium.
A combination of new circuit design and process innovation has enabled the usual pnp pass transistor to be
replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the
dropout voltage is very low-typically 300 mV at 150 mA of load current (TPS76433)-and is directly
proportional to the load current. Since the PMOS pass element is a voltage-driven device, the quiescent current
is very low (140 !lA maximum) and is stable over the entire range of output load current (0 mA to 150 mA).
Intended for use in portable systems such as laptops and cellular phones, the low-dropout voltage feature and
low-power operation result in a significant increase in system battery operating life.
The TPS764xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current
to 1 !lA maximum at TJ = 25°C.The TPS764xx is offered in 2.5-V, 2.7-V, 2.8-V, 3.0-V, and 3.3-V fixed-voltages.
AVAILABLE OPTIONS
TJ
-40°C to 12SoC
VOLTAGE
PACKAGE
PART NUMBER
SYMBOL
2.SV
TPS7642SDBvrt
TPS7642SDBVR:I:
PBJI
2.7V
TPS76427DBvrt
TPS76427DBVR:I:
PBKI
PCEI
SOT-23
(DBV)
TPS76428DBvrt
TPS76428DBvR:I:
3.0V
TPS76430DBvrt
TPS76430DBvR:I:
PBLI
3.3V
TPS76433DBvrt
TPS76433DBVR:I:
PBMI
2.8V
t The DBVT passive Indicates tape and reel of 2S0 parts.
:I: The DBVR passive indicates tape and reel of 3000 parts.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
Copyright @ 1999, Texas Instruments Incorporated
2-247
TPS76425, TPS76427, TPS76428, TPS76430, TPS76433
LOW-POWER LOW-NOISE 15D-mA LOW-DROPOUT LINEAR REGULATORS
SLVSl80A - MARCH 1999 - REVISED JUNE 1999
functional block diagram
TPS76425/271 281 301 33
IN - - - - - - - . . , , - - - (
EN - - - - - - ,
BYPASS
) - - - - . > - OUT
~J-----I
GND~
Terminal Functions
TERMINAL
NAME
110
GND
EN
DESCRIPTION
Ground
I
BYPASS
Enable input
Output bypass capacitor
IN
I
Input supply voltage
OUT
0
Regulated output vo~age
~TEXAS
2-248
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS76425, TPS76427, TPS76428, TPS76430,TPS76433
LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATORS
SLVS180A-MARCH 1999- REVISED JUNE 1999
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)t
Input voltage range (see Note 1) .................................................... -0.3 V to 10 V
Voltage range at EN .......................................................... -0.3 V to VI + 0.3 V
Voltage on OUT, ............................................................................. 7 V
Peak output current ............................................................. Internally limited
ESD rating, HBM ......................................................................... 2 kV
Continuous total power dissipation ..................................... See dissipation rating tables
Operating virtual junction temperature range, TJ .................................... -40°C to 150°C
Storage temperature range, Tstg .................................................. -65°C to 150°C
t Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions· Is not
Implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values are with respect to network ground terminal.
DISSIPATION RATING TABLE
=
=
PACKAGE
TAS25°C
POWER RATING
DERATING FACTOR
ABOVE TA 25°C
Recommended
DBV
350mW
3.5mW/"C
192mW
140mW
Maximum
DBV
437mW
3.5mW/"C
280mW
227mW
=
TA 70°C
POWER RATING
TA 85°C
POWER RATING
recommended operating conditions
MIN
Input voltage, VI
t
Continuous output current, 10
Operating junction temperature, TJ
t
NOM
MAX
UNIT
2.7
10
V
0
150
mA
-40
125
°C
To calculate the minimum input voltage for your maximum output current, use the following equation: VI(min) = VO(max) + VDO(max load)
~TEXAS
INSTRUMENTS
POST OFFICE BOX 855303 • DALlAS. TEXAS 75285
2-249
TPS76425, TPS76427,TPS76428, TPS76430, TPS76433
LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATORS
SLVS1S0A - MARCH 1999 - REVISED JUNE 1999
electrical characteristics over recommended operating free-air temperature range, VI
1 V, 10= 1 mA, EN = IN, Co = 4.71lF (unless otherwise noted)
PARAMETER
TEST CONDITIONS
10=lmAtol00mA,
TPS76425
MIN
TYP
MAX
TJ = 25°C
2.45
2.5
2.55
2.425
2.5
2.575
TJ = 25°C
2.438
2.5
2.562
2.407
2.5
2.593
TJ = 25°C
2.646
2.7
2.754
2.619
2.7
2.781
TJ = 25°C
2.632
2.7
2.768
2.598
2.7
2.8013
TJ = 25°C
2.744
2.8
2.856
2.73
2.8
2.870
2.716
2.8
2.884
2.695
2.8
2.905
2.94
3.0
3.06
2.925
3.0
3.075
TJ = 25°C
2.91
3.0
3.090
2.887
3.0
3.112
TJ = 25°C
3.234
3.3
3.366
3.201
3.3
3.399
TJ = 25°C
3.218
3.3
3.382
3.177
3.3
3.423
85
100
10=1 mAtol00mA
10=1 mAto150mA,
10=1 mAto150mA
10=lmAtol00mA,
TPS76427
10=1 mAtol00mA
10=lmAto150mA,
10=1 mAto150mA
10=1 mAtol00mA
Vo
Output voltage
TPS76428
10=lmAto150mA,
10=1 mAto150mA,
TJ = 25°C
10=1 mAto150mA
10=1 mAtol00mA,
TPS76430
TJ = 25°C
10=1 mAtol00mA
10=1 mAto150mA,
10=1 mAto150mA
10=1 mAtol00mA,
TPS76433
10=1 mAtol00mA
10=1 mAto150mA,
10=1 mAto150mA
I(Q)
Quiescent current
(GND terminal current)
Standby current
Vn
PSRR
10=Oto150mA,
See Note 2
TJ = 25°C,
10=Oto 150mA,
See Note 2
EN < 0.5 V,
TJ = 25°C
0.5
Co = lOI1F,
See Note 2
50
BW = 300 Hz to 50 kHz,
TJ = 25°C,
Bypass voltage
TJ = 25°C
Ripple rejection
f = 1 kHz, Co = 10 I1F,
Current limit
TJ = 25°C
UNIT
V
V
V
V
V
!IA
1
2
I1V
1.192
V
TJ = 25°C, See Note 2
60
dB
See Note 3
0.8
NOTES: 2. Minimum IN operating voltage Is 2.7 V or VO(typ) + 1 V, whichever is greater.
3. Test condition includes, output voltage VO=O V and pulse duration = 10 mS.
~TEXAS
2-250
140
EN < 0.5 V
Output noise voltage
=VO(typ) +
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
1.5
A
TPS76425, TPS76427,TPS76428,TPS76430,TPS76433
LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATORS
SLVS180A-MARCH 1999-REVISEDJUNE 1999
electrical characteristics over recommended operating free-air temperature
VI = VO(typ) + 1 V, 10= 1 rnA, EN = IN, Co = 4.71!F (unless otherwise noted) (continued)
PARAMETER
TEST CONDITIONS
Output voltage line regulation (tNoNo)
(see Note 4)
VO+1V2.5 V and Vimax = 10V, Vimin=VO + 1 V:
Vohmax Line Reg. (mV) = (%/V) x
(vO + 1)) x 1000
100
5. Dropout voltage is defined as the differential voltage between Vo and Vi when Vo drops 100 mV below the value measured with
VI =VO + 1.0V.:
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-251
TPS76425,TPS76427,TPS76428,TPS76430,TPS76433
LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATORS
SLVS180A-MARCH 1999-REVISEDJUNE 1999
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
Vo
Output voltage
Vn
Output noise
vs Output current
1
vs Free-air temperature
2,3,4
5
vs Frequency
vs Bypass capacitance
6
vs Load current
7
Vn
Output noise voltage
Zo
Output impedance
vs Frequency
8
VDO
Dropout voltage
vs Free-air temperature
9
Ripple rejection
vs Frequency
10
11,13
Une transient response
Load transient response
12,14
Compensation series resistance (CSR)
vs Output current
15,17
vs Added ceramic capacitance
16,18
TPS76425
TPS76425
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
2.505
2.5
>
I
t
~
2.495
J
I
2.49
'"'"
2.485
~
2.48
2.475
o
30
.1
2.53
1
VI=3.5V
CI = Co = 4.711F
TA = 25°C
VI=3.5V
CI = Co = 4.711F
-
2.52
,
>
I
'"'"
60
II
~
'!5
g
'"
:b
~
90
120
150
10 - Output Current - mA (Pulse Tested)
180
./
2.51
lo=1mA
2.5
2.49 ~ IO=150mA
2.48
. . . . . r-. r-.
2.47
-65 -35
Figure 1
-15
5
-
25
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS, TEXAS 75265
45
65
85
TA - Free-Air Tempe~ature - °C
Figure 2
~1EXAS
2-252
l,....-'" V'
105
125
TPS76425, TPS76427, TPS76428, TPS76430, TPS76433
LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATORS
SlVS180A - MARCH 1999 - REVISED JUNE 1999
TYPICAL CHARACTERISTICS
TPS76425
GROUND CURRENT
TPS76433
OUTPUT VOLTAGE
vs
vs
FREE-AIR TEMPERATURE
FREE-AIR TEMPERATURE
1000
3.34
!
I
VI=4.3V
VI=6V
CI=CO=4.7IlF
10=0 rnA and 150 rnA
3.33
/
3.32
,/'
>
I
-
CD
3.31
~
3.3
J
10=1 rnA.......
0
i
3.29
~
3.28
~
/'"
~~
""
/'"
10=150mA
3.27
----
3.26
-65 -35
10
-55 -35 -15
5 25 45 65 85 105 125
TA - Free-Air Temperature - DC
-15
5 25 45 65 85 105
TA - Free-Air Temperature - DC
Figure 3
125
Figure 4
OUTPUT NOISE
vs
OUTPUT NOISE VOLTAGE
FREQUENCY
3.3
l!>
:::I.
I
j
~
0.33
i
'S
-
i
i
!
1
~~
\
I
CO= 11lF
IOj150 mA ;
0
I
"'lIiI!'!! -..I..
l
0.033
.1
I
VO=3.3V
TA=25DC
100
;
I
I- C(BVPASS) = 0.11lF -
o
>:::I.
110=1 rnA
I
1 \
CO= 10llF
10=150 rnA
_J
~.
80
i CO=1IlF
1
I
1
~~
vs
1.1 k
P-'- lJ<
1/
CO= 1O IlF
10=1mA
I
1
10.1 k
I"'--.
70
"
I
CD
DI
1[1
~
BYPASS CAPACITANCE
~
.:!
60
r-....
i'r-,
CO= 1O IlF
10 = 150 rnA
f=10Hzto100kHz
TA=25 DC
I--r-
~
I
50
'S
!
0
40
I
>c
100.1 k
f - Frequency - Hz
30
20
10-3
10-2
10-1
Bypass Capacitance - IlF
Figure 6
Figure 5
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-253
TPS76425, TPS76427, TPS76428, TPS76430,TPS76433
LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATORS
SLVS180A - MARCH 1999 - REVISED JUNE 1999
TYPICAL CHARACTERISTICS
OUTPUT NOISE VOLTAGE
OUTPUT IMPEDANCE
vs
vs
LOAD CURRENT
70
FREQUENCY
10
>::I.
~
60
I
GI
CI
Jl!
50
~
11
:f
40
l/
V
~
~ .....
Cl
I
t
'5
~
0
:f"
I
30
I
VO=2.5V
CO= 1O I1F
f = 10 Hz to 100 kHz
20
TA=rCI
10
o
t-
I
r!i
10= 150 mA
ESR=1 a
TA = 25°C
102
0.1
0.01
Load Current - mA
mIL
vs
vs
100
_I.
90
500
E
I
GI
J
~
'5
8.
.1
150 mA ,......
400
300 I....
V
V
......... V
V
III
'a
I
l. . . . ·J..·......
80
j-
j-
70
l-
F
c
60
l
t
50
t
a:
200
1 mA\
omA\
100
IO=1mA
~
I10=150mA
40
5
25
45
65
r-
30
20
\
\
-55 -35 -15
10
III
85
105
125
o
10
100
TA - Free·Air Temperature - °C
Figure 9
1k
10 k
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
100 k
f - Frequency - Hz
Figure 10
~TEXAS
2-254
I'
112.
e0
o
""'"
VO~'2.5V """
C(BVPASS) = 0.01 I1F
CL = 10 I1F
I
e
Q
1000
FREQUENCY
VI = EN=2.7V
CI = Co = 4.711f
>
100
TPS76425
RIPPLE REJECTION
FREE·AIR TEMPERATURE
_.1
10
f - Frequency - kHz
Figure 8
TPS76425
DROPOUT VOLTAGE
.1
llllC
0.1
Figure 7
600
~
I- CI ~lIh6 ~I~.~ 11~ I
I I I II
101
r-
.....O:=.1..~J}. ..
.5
1M
10 M
TPS76425, TPS76427,TPS76428, TPS76430, TPS76433
LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATORS
SLVS180A- MARCH 1999 - REVISED JUNE 1999
TYPICAL CHARACTERISnCS
TPS76425
LINE TRANSIENT RESPONSE
~~=~OC
TPS76425
LOAD TRANSIENT RESPONSE
~mA
".
=
TAl 25!C
6V
100mA
4.7 V
~
J
OmA
-oJ
::
~
50mV
50mV
J
o
o
r
-50mV
-50mV
-100mV
o
~
@
~
~
100 1~1@1~100
t-nme-IJ.I
o
~
20
@
60
~ 100 1~ 1@
t-nme-IJ.I
1~
1~
200
Figure 12
Figure 11
TPS76433
LINE TRANSIENT RESPONSE
TPS76433
LOAD TRANSIENT RESPONSE
~mA
~~=~oc
6V
T~=25!C
100mA
\
I
4.7 V ~ -oJ
o
100mV
50mV
o
50mV
J \.
o
-50mV
(
-50mV
-100mV
f- dv
dt
o
"
~
=-LY-
-150mV
10 liS
.1
.1
~
~
~1001~1@1~1~~0
t-Tlme-IJ.I
o
~
~
~
~
1001~1~1~1~~
t-nrta-IJ.I
Figure 13
Figure 14
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-255
TPS76425, TPS76427, TPS76428,TPS76430, TPS76433
LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATORS
SLVS180A - MARCH 1999 - REVISED JUNE 1999
TYPICAL CHARACTERISTICS
TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE (CSR)t
TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE (CSR)t
vs
vs
OUTPUT CURRENT
ADDED CERAMIC CAPACITANCE
100
c:I
c:
Ij
j
I
5
0
I
i
j
I
E
8
0.1
I
II:
0.1
I
~
!3
50
150
100
200
250
0.1
10 - Output Current - mA
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
Added Ceramic CapaCitance - I1F
Figure 15
Figure 16
TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE (CSR)t
TYPICAL REGIONS OF STABILITY
COMPENSATION SERIES RESISTANCE (CSR)t
vs
vs
OUTPUT CURRENT
ADDED CERAMIC CAPACITANCE
100
c:I
c:
I
IIIc
~
I
iSE~~
j
:l
~
I
~
10
a
1c
8.
~
0.1
I
I
~
!3
0.1
II:
50
100
150
200
250
0.1
10 - Output Current - mA
Figure 17
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
Added Ceramic Capacitance -I1F
1
Figure 18
t CSR refers to the total series resistance, including the ESR of the capacitor, any series resistance added externally, and PWB trace resistance
to CO.
~TEXAS
2-256
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS76425, TPS76427,TPS76428, TPS76430, TPS76433
LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATORS
SLVS180A-MARCH 1999- REVISED JUNE 1999
APPLICATION INFORMATION
The TPS764xx family of low-noise and low-dropout (LDO) regulators are optimized for use in battery-operated
equipment. They feature extremely low noise (50 IlV), low dropout voltages, low quiescent current (140 !lA),
and an enable input to reduce supply current to less than 2 !lA when the regulator is turned off.
device operation
The TPS764xx uses a PMOS pass element to dramatically reduce both dropout voltage and supply current over
more conventional PNP-pass-element LDO designs. The PMOS pass element is a voltage-controlled device
which, unlike a PNP transistor, does not require increased drive current as output current increases. Supply
current in the TPS764xx is essentially constant from no-load to maximum load.
Current limiting and thermal protection prevent damage by excessive output current and/or power dissipation.
The device switches into a constant-current mode at approximately 1 A; further load reduces the output voltage
instead of increasing the output current. The thermal protection shuts the regulator off ifthe junction temperature
rises above 165°C. Recovery is automatic when the junction temperature drops approximately 25°C below the
high temperature trip point. The PMOS pass element includes a back diode that safely conducts reverse current
when the input voltage level drops below the output voltage level.
An internal resistor, in conjunction with external 0.01-IlF bypass capacitor, creates a low-pass filter to further
reduce the noise. The TPS764xx exhibits only 50 IlV of output voltage noise using 0.01 IlF bypass and 4.7-IlF
output capacitors.
A logic low on the enable input, EN, shuts off the output and reduces the supply current to less than 2 !lAo EN
should be tied high in applications where the shutdown feature is not used.
A typical application circuit is shown in Figure 22.
TPS764xxt
IN
VI
C1
1~1
BYPASS 4
3
Vo
OUT
EN
+
O.01I1F
GND
2
r-
I
I
I
I
+
----,I
4.711F
I
I
CSR=1
Q oJI
____
L
-=t TPS76425, TPS76427 TPS76430, TPS76433.
Figure 19. Typical Application Circuit
~1ExAs
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-257
TPS76425,TPS76427,TPS76428,TPS76430,TPS76433
LOW-POWER LOW-NOISE 15D-mA LOW-DROPOUT LINEAR REGULATORS
SLVSl80A - MARCH 1999 - REVISED JUNE 1999
APPLICATION INFORMATION
external capacitor requirements
Although not required, a 0.047-J.LF or larger ceramic bypass input capacitor, connected between IN and GND
and located close to the TPS764xx, is recommended to improve transient response and noise rejection. A
higher-value electrolytic input capaCitor may be necessary if large, fast-rise-time load transients are anticipated
and the device is located several inches from the power source.
Like all low dropout regulators, the TPS764xx requires an output capacitor connected between OUT and GND
to stabilize the internal loop control. The minimum recommended capacitance value is 4.7 J.LF and the ESR
(equivalent series resistance) must be between 0.2 0 and 10 O. Capacitor values 4.7 J.LF or larger are
acceptable, provided the ESR is less than 10 n. Solid tantalum electrolytic, aluminum electrolytiC, and multilayer
ceramic capacitors are all suitable, provided they meet the requirements described above. Most of the
commercially available 4.7 I1F surface-mount solid tantalum capacitors, including devices from Sprague,
Kemet, and Nichico, meet the ESR requirements previously stated. Multilayer ceramic capacitors should have
minimum values of 1 J.LF over the full operating temperature range of the equipment.
CAPACITOR SELECTION
PART NO.
VALUE
T494B475K016AS
KEMET
4.7~F
1.50
1.9 x3.5 x 2.8
1950106xOO16x2T
SPRAGUE
10~F
1.50
1.3x 7.0 x 2.7
6950106x003562T
SPRAGUE
10~F
1.30
2.5 x 7.6 x 2.5
AVX
4.7~F
0.60
2.6 x 6.0
TPSC475K035R0600
t
Size is in mm. ESR is maximum resistance in ohms at 100kHz and TA
MAX ESRt
x 3.2
=25°C. Ustings are sorted by height.
\
~1ExAs
2-258
SIZE (H x L xW)t
MFR.
INSTRUMENTS
POST OFFICE BOX 655303 • OALLAS. TEXAS 75265
TPS76425, TPS76427, TPS76428, TPS76430, TPS76433
LOW-POWER LOW-NOISE 150-mA LOW-DROPOUT LINEAR REGULATORS
SLVS180A- MARCH 1999- REVISED JUNE 1999
APPLICATION INFORMATION
power dissipation and junction temperature
Specified regulator operation is assured to a junction temperature of 125°C; the maximum junction temperature
allowable without damaging the device is 150°C. This restriction limits the power dissipation the regulator can
handle in any given application. To ensure the junction temperature is within acceptable limits, calculate the
maximum allowable dissipation, PO(max), and the actual dissipation, Po, which must be less than or equal to
PO(max)'
The maximum-power-dissipation limit is determined using the following equation:
P
-
D(max) -
TJmax - TA
~-;:::----!..!
RaJA
Where
TJmax is the maximum allowable junction temperature
RaJA is the thermal resistance junction-to-ambient for the package, i.e., 285°C/W for the 5-terminal
SOT23.
TA is the ambient temperature.
The regulator dissipation is calculated using:
PD
= (VI
- VO)
x
10
Power dissipation resulting from quiescent current is negligible.
regulator protection
The TPS764xx pass element has a bUilt-in back diode that safely conducts reverse current when the input
voltage drops below the output voltage (e.g., during power down). Current is conducted from the output to the
input and is not internally limited. If extended reverse voltage is anticipated, external limiting might be
appropriate.
The TPS764xx also features internal current limiting and thermal protection. During normal operation, the
TPS764xx limits output current to approximately 800 rnA. When current limiting engages, the output voltage
scales back linearly until the overcurrent condition ends. While current limiting is designed to prevent gross
device failure, care should be taken not to exceed the power dissipation ratings of the package. If the
temperature of the device exceeds 165°C, thermal-protection Circuitry shuts it down. Once the device has
cooled down to below 140°C, regulator operation resumes.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-259
2-260
TPS76515,TPS76518,TPS76525,TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
DPACKAGE
• 150-mA Low-Dropout Yoltage Regulator
(TOP VIEW)
• Available In 1.5-Y, 1.a-y, 2.5-Y, 2.7-Y, 2.a-y,
3.o-Y, 3.3-Y, 5.o-Y Fixed Output and
Adjustable Versions
NC/FBua OUT
PG 2
7 OUT
GND 3
6 IN
EN 4
5 IN
• Dropout Yoltage to 85 mY (Typ) at 150 mA
(TPS76550)
• Ultra-Low 35-1lA Typical Quiescent Current
• 3% Tolerance Over Specified Conditions for
Fixed-Output Versions
• Open Drain Power Good
• 8-Pin SOIC Package
• Thermal Shutdown Protection
description
This device is designed to have an ultra-low quiescent current and be stable with a 4.7-IlF capacitor. This
combination provides high performance at a reasonable cost.
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 85 mY
at an output current of 150 mA for the TPS76550) and is directly proportional to the output current. Additionally,
since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent
of output loading (typically 35 IlA over the full range of output current, 0 mA to 150 mAl. These two key
specifications yield a significant improvement in operating life for battery-powered systems. This LOO family
also features a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the
quiescent current to less than 1 IlA (typ).
TPS76533
DROPOUT YOLTAGE
vs
FREE-AIR TEMPERATURE
TPS76533
GROUND CURRENT
vs
LOAD CURRENT
100
35.0
~ VI=3.2V
,
I
t - - lo=150mA
>
I
OIl
10-1
lo=50mA
I
g
34.8
I
34.7
~~
34.6
'CO
u
5Do
a
cc::I.
'E
~
VO=3.3V
TA=25DC
34.9
c
34.5
e
34.4
I
CI
34.3
~
-
lo=10mA
10-2
"z
"
>
-
34.2
34.1
10-3
-so
-25
0
25
50
75
100
125
150
34.0
o
TA - Free-Air Temperature - DC
25
50
75
100
125
150
IL - Load Current - mA
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Copyright© 1999, Texas Instruments Incorporated
2-261
TPS76515,TPS76518, TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 - AUGUST 1999
description (continued)
Power good (PG) is an active high output, which can be used to implement a power-on reset or a low-battery
indicator.
The TPS765xx is offered in 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V, 3.0-V, 3.3-V and 5.0-V fixed-voltage versions and
in an adjustable version (programmable over the range of 1.25 V to 5.5 V). Output voltage tolerance is specified
as a maximum of 3% over line, load, and temperature ranges. The TPS765xx family is available in 8 pin sOle
package.
AVAILABLE OPTIONS
OUTPUT VOLTAGE
PACKAGED DEVICES
(V)
TJ
SOIC
(D)
TYP
5.0
Tt>::i76550U
3.3
TPS76533D
3.0
TPS76530D
2.8
TPS76528D
2.7
TPS76527D
2.5
TPS76525D
1.8
TPS76518D
1.5
TPS76515D
Adjustable
1.25Vt05.5V
TPS76501D
-40°C to 125°C
The TPS76501 Is programmable using an external resistor divider (see application
information). The D package is available taped and reeled. Add an R suffix to the
device type (e.g., TPS76501 DR).
TPS765xx
5
IN
PG
IN
NCfFB
6
OUT
O.1I1F
4
EN
OUT
2
PG
7
Vo
8
GND
3
r
I
I
I
I
I
---,
cot I
I
I
I
300mO
_
_ _ ..AI
+
4.711F
L
t
See application information section for capacitor selection details.
Figure 1. Typical Application Configuration for Fixed Output Options
~TEXAS
2-262
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS76515, TPS76518, TPS76525,TPS76527
TPS76528, TPS76530, TPS76533, TPS76550,TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGESLVS236
REGULATORS
- AUGUST 1999
functional block diagram---adjustable version
IN
-------+--.---~~-+~------,
, - - - - 1 - - - PG
OUT
R1
FB/NC
R2
GND
External to the device
functional block diagram-flxed-voltage version
IN
-------+--.---~~-+~------,
EN
----__..-+1
r------1f---- PG
1--___- - OUT
R1
R2
GND
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-263
TPS76515, TPS76518,TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550,TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236-AUGUST 1999
Terminal Functions - sOle Package
TERMINAL
NAME
NO.
DESCRIPTION
1/0
EN
4
I
Enable Input
FBINC
1
I
Feedback input voltage for adjustable device (no connect for fixed options)
GNO
3
IN
5
I
Input voltage
Regulator ground
IN
6
I
Input voltage
OUT
7
0
Regulated output voHage
OUT
8
0
Regulated output voltage
PG
2
0
PGoutput
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)t
Input voltage ran~, VI .......................................................... -0.3 V to 13.5 V
Voltage range at EN ............................................................. -0.3 V to 16.5 V
Maximum PG voltage ..................................................................... 16.5 V
Peak output current ............................................................. Internally limited
Continuous total power dissipation ..................................... See dissipation rating tables
Output voltage, Vo (OUT, FB) ............................................................... 7 V
Operating virtual junction temperature range, TJ .................................... -40°C to 125°C
Storage temperature range, Tstg .................................................. -65°C to 150°C
ESO rating, HBM ......................................................................... 2 kV
t Stresses beyond those listed under "absolute maximum ratings" may cause pennanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" Is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
:I: All voltage values are with respect to network tenninal ground.
DISSIPATION RATING TABLE 1 - FREE-AIR TEMPERATURES
PACKAGE
0
DERATING FACTOR
ABOVE TA" 25°C
TA =70°C
POWER RATING
568mW
5.68mWrC
312mW
227mW
904mW
9.04mWrC
497mW
361 mW
AIRFLOW
(CFM)
TA < 25°C
POWER RATING
0
250
TA = 85°C
POWER RATING
recommended operating conditions
MIN
MAX
Input voltage, Vr*
2.7
10
Output voltage range, Vo
1.2
5.5
V
0
150
mA
-40
125
°C
Output current, 10 (Note 1)
Operating virtual junction temperature, TJ (Note 1)
UNIT
V
* To calculate the minimum input voltage for your maximum output current, use the following equation: VI(min) .. VO(max) + VOO(max load).
NOTE 1: Continuous current and operating junction temperature are limited by internal protection circuitry, but it is not recommended that the
device operate under conditions beyond those specified in this table for extended periods of time.
~1ExAs
2-264
INSTRUMENTS
POST OFACE BOX 655303 • OALlAS, TEXAS 75265
TPS76515, TPS76518, TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 15Q.mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 - AUGUST 1999
electrical characteristics over recommended operating free-air temperature
Vi vO(typ) + 1 V, 10 10 IJ.A, EN 0 V, Co 4.71J.F (unless otherwise noted)
=
=
=
TEST CONDITIONS
PARAMETER
TPS76501
TPS76515
TPS76518
TPS76525
Output voltage
(10 IlA to 150 rnA load)
(see Note 2)
TPS76527
TPS76528
TPS76530
TPS76533
TPS76550
5.5 V;:, Vo;:' 1.25 V,
MIN
TJ = 25°C
5.5 V;:, Vo '" 1.25 v,
TJ = -40°C to 125°C
TJ = 25°C,
2.7V 1.492
I
~
..............
i
1.491
i
1.490
"-
~
.............. ~
--
~
""
1.487
o
25
3.310
50
75
100
IL - Load Current - mA
125
150
o
75
100
50
IL - Load Current - mA
25
~ 3.295
3.290
/
3.285
3.280
/
V
TPS76515
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
IO!10J
3.300
/
/
10'
....
~-r--
--
1.505
-
IO~10~
~
_I
VI=2.7V
1.500
V
>
8.
lo=150mA _
V
150
Figure 3
vs
1
_I
VI=4.3V
>
b
..............
125
FREE-AIR TEMPERATURE
3.305
i
o
.............
1.488
TPS76533
OUTPUT VOLTAGE
~
.................
b 1.489
Figure 2
,
~
>'
3.294
3.292
VI=2.7V
TA = 25°C
I---
~
'5 1.490
g
b
>'
./
1.495
:!
/'
/
V
./"
V
/
I
--
--
lo=150mA _
-
-
1.485
>'
3.275
1.480
3.270
3.265
-50
-25
0
25
50
75 100 125
TA - Free-Air Temperature - °C
150
1.475
-50
-25
Figure 4
0
25
50
75 100 125
TA - Free-Air Temperature - °C
150
FigureS
~1ExAs
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-267
TPS76515, TPS76518, TPS76525,TPS76527 .
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 - AUGUST 1999
TYPICAL CHARACTERISTICS
TPS76533
TPS76515
GROUND CURRENT
GROUND CURRENT
vs
vs
LOAD CURRENT
LOAD CURRENT
34.0 ,...---r-I--.---r----,----,---,
35.0
VO=3.3V
TA=25°C
34.9
cc
::I.
I
C
~
:::I
33.9
cc
33.8 1 - - - + - - - + - - - / - - - - + - - - 1 i - - - - i
34.7
::I.
I
33.7 1 - - - + - - - + - - - / - - - - + - - - 1 i - - - - i
C
-
34.6
c
34.5
e
Cl
34.4
:::I
~
z
~
~
i
~
o
Cl
I
Q
Vo = 1.5 V
TA=25°C
34.8
g
'C
r-
33.5 1 - - - + - - - + - - - / - - - - + - - - 1 i - - - - i
33.4 t--+---t---t---+---1I----I
I
Q
Z
34.3
Cl
34.2
34.1
34.0
33.6 t--+---t---t---+---1I----I
o
33.3
33.2
'::t;;t~l=:l=j::j
j,::
33.1
1---+---1---/---+---1---1
33.0
25
75
100
50
IL - Load Current - mA
125
150
L..-_-'--_....I...._-L._--I._---IL-----I
o
25
50
TPS76533
TPS76515
GROUND CURRENT
vs
vs
FREE-AIR TEMPERATURE
FREE-AIR TEMPERATURE
55
55
50
50
45
cc
C
~
40
C
0
35
::I.
I
----
'C
C
:::I
e
30
Cl
I
Q
25
z
~
~
l....--- ~
~
40
'C
35
c
:::I
e
Cl
I
z
25
20 _
VO=3.3V
I-- 10 = 150 mA
-00
30
Q
~
10
I
---------
50
100
TA - Free-Air Temperature - °C
150
-00
Figure 8
I
o
50
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
100
TA - Free-Air Temperature - °C
Figure 9
~TEXAS
2-268
~
VO=1.5V
10=150mA
15
o
150
45
0
20
15
125
GROUND CURRENT
CC
:::I
100
Figure 7
Figure 6
::I.
I
75
IL - Load Current - mA
150
TPS76515, TPS76518, TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGESLVS236
REGULATORS
- AUGUST 1999
TYPICAL CHARACTERISTICS
TPS76533
TPS76533
POWER SUPPLY RIPPLE REJECTION
OUTPUT SPECTRAL NOISE DENSITY
vs
vs
FREQUENCY
FREQUENCY
70
....
III
'a
I
C
0
60
tiIII
"ii'
II:
III
JII~ ~~~ Vi
r-.
,
~
50
i5.
a.
a:
~
a.
40
~
c1l
I
III
CO= 10ILF
10=150mA
TA=25°C
30
a.
I
II:
II:
20
"'Ii;
~
10
10
100
1k
100k
10k
10M
1M
f - Frequency - Hz
f - Frequency - Hz
Figure 10
Figure 11
TPS76533
OUTPUT IMPEDANCE
vs
FREQUENCY
VI=4.3V
CO= 1O ILF
TA = 25°C
~
10=1 mA
'1
10-2
-I
10
II~ ~
l;t Im~
O
100
I
1k
10k
100k
1M
f - Frequency - Hz
Figure 12
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-269
TPS76515, TPS76518, TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236-AUGUST 1999
TYPICAL CHARACTERISTICS
TPS76533
DROPOUT VOLTAGE
TPS76550
DROPOUT VOLTAGE
vs
vs
FREE-AIR TEMPERATURE
FREE-AIR TEMPERATURE
VI=4.9V
Co = 4.7 IlF
I
t:
I
>
~
_
10-1
f
VI=3.2V
I
I,
-
!lo=150mA
1
lo=150mA
IO=50mA
j
lo=50mA
8
>
-
IO=10mA
I
10-2
I
lo=10mA
10-3
10-3
-50
-25
0
25
50
75
100 125
TA - Free-Air Temperature - °C
-50
150
-25
0
Figure 13
100
125
150
TPS76515
LOAD TRANSIENT RESPONSE
'~L=~.7J
>
.5 E 200
&~
TA = 25°C
Cal
.!!
o~
II.
1-
TA=25°C
-
0;:,
~! -200
1
-400
i
'E
150
I
,•
A
0
>
I
8
3.7
-
2.7
:>
o
j
0
I
.9
100 200 300 400 500 600 700 800 900 1000
t-Tlme-J.IS
o
100 200 300 400 500 600 700 SOO 900 1000
t-Tlme-J.IS
Figure 16
Figure 15
~TEXAS
2-270
75
400
'll. '1
!-- CL = 4.71lF
I
50
Figure 14
TPS76515
LINE TRANSIENT RESPONSE
i
25
TA - Free-Air Temperature - °C
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS76515, TPS76518, TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGESLVS236-AUGUST
REGULATORS
1999
TYPICAL CHARACTERISTICS
TPS76533
TPS76533
LINE TRANSIENT RESPONSE
LOAD TRANSIENT RESPONSE
400
>
.5
E 100 _
III
alII
Cal
!!!
O~
1-
~!
<1«3
>
I_I
I
CL=4.7I1F
TA=25°C
.; I
!!!
CJ~
o
'E"
I
-100
S
~
1
~
'>
,.
....
5.3
J
4.3
~I
0:1
~ ~-200
~.
C
~:I
150
CJ
'S
~
0
0
I
o
.9
100 200 300 400 500 600 700 800 900 1000
t- Time-lIS
0
100 200 300 400 500 600 700 800 900 1000
t- Time-lIS
Figure 18
Figure 17
>
t
3
J~
2
TPS76533
TPS76501
OUTPUT VOLTAGE
DROPOUT VOLTAGE
vs
vs
TIME (AT STARTUP)
INPUT VOLTAGE
,.
4
I
~
0.30
lo=150mA
0.25
>
I
III
l
~
o
0.15
I
0.10
0
I
0.20
'S
~
0
>
I
-
1
0
1-
-"-
...so
200
alII
Cal
I
&
E
C
50
0
'I
1
1
CL=4.7I1F
TA=25°C
>
C
>
4.3
0.05
o
o
100 200 300 400 500 600 700 800 900 1000
t-Time-IIS
0.00
2.5
3.0
3.5
4.0
4.5
5.0
VI-Input Voltage- V
Figure 20
Figure 19
~TEXAS
INSTRUMENTS
POST OFFICE 60X 655303 • DALlAS, TEXAS 75265
2-271
TPS76515, TPS76518,TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 - AUGUST 1999
TYPICAL CHARACTERISTICS
TYPICAL REGION OF STABILITY
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCEt
EQUIVALENT SERIES RESISTANCEt
vs
vs
OUTPUT CURRENT
OUTPUT CURRENT
Cl
.
I
u
c
101
!
"ji
.
a:
~
100
C
~
::I
I:T
w 10-1
I
a:
Ul
w
10-2
o
25
50
75
100
125
10-2
150
0
25
50
75
100
125
150
10 - Output Current - rnA
10 - Output Current - rnA
Figure 22
Figure 21
TYPICAL REGION OF STABILITY
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCEt
EQUIVALENT SERIES RESISTANCEt
vs
vs
OUTPUT CURRENT
OUTPUT CURRENT
102
ESR
Cl
I
8c
!
"ji
101
a:
I..
100
C
j
"S
I:T
w 10-1
I
a:
Ul
w
25
50
75
100
125
150
1o-%ati!.
100
125
150
75
o
25
50
10 - Output Current - rnA
10 - Output Current - rnA
Figure 23
t
Figure 24
Equivalent series resistance (ESR) refers to the total series reSistance, including the ESR of the capacitor, any series resistance added
externally, and PWB trace resistance to CO"
~TEXAS
2-272
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS, TEXAS 75265
TPS76515,TPS76518, TPS76525,TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGESLVS236-AUGUST
REGULATORS
1999
TYPICAL CHARACTERISTICS
TYPICAL REGION OF STABILITY
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCEt
EQUIVALENT SERIES RESISTANCEt
vs
vs
ADDED CERAMIC CAPACITANCE
ADDED CERAMIC CAPACITANCE
101
VI =4.3V
Co = 4.7 I1F
VO=3.3V
TA=25°C
C
I
IJ
VO=3.3V
CO= IO I1F
TA = 25°C
,
I
10 = 150 mA
10= 150 mA
100~~~
j
!f
'5
10-1
.:r
!li
I
10-2
o
0.2
0.4
0.6
0.8
1.0
o
Added Ceramic Capacitance - I1F
0.2
Figure 25
IN
0.4
0.6
0.8
1.0
Added Ceramic Capacitance -I1F
Figure 26
To Load
OUT~---1~---'--------e-----~
+
Co
ESR
LJL
Figure 27. Test Circuit for Typical Regions of Stability (Figures 20 through 23) (Fixed Output Options)
t Equivalent series resistance (ESR) refers to the total series resistance, including the ESR of the capacitor, any series resistance added
externally, and PWB trace rasistance to CO.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-273
TPS76515,TPS76518,TPS76525,TPS76527
TPS76528,TPS76530,TPS76533,TPS76550,TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 - AUGUST 1999
APPLICATION INFORMATION
The TPS765xx family includes eight fixed-output voltage regulators (1.5 V, 1.8 V, 2.5 V, 2.7 V, 2.8 V, 3.0 V,
3.3 V, and 5.0 V), and an adjustable regulator, the TPS76501 (adjustable from 1.25 V to 5.5 V).
device operation
The TPS765xx features very low quiescent current, which remains virtually constant even with varying loads.
Conventional LDO regulators use a pnp pass element, the base current of which is directly proportional to the
load current through the regulator (16 IclP). The TPS765xx uses a PMOS transistor to pass current; because
the gate of the PMOS is voltage driven, operating current is low and invariable over the full load range.
=
Another pitfall associated with the pnp-pass element is its tendency to saturate when the device goes into
dropout. The resulting drop in P forces an increase in 16 to maintain the load. During power up, this translates
to large start-up currents. Systems with limited supply current may fail to start up. In battery-powered systems,
it means rapid battery discharge when the voltage decays below the minimum required for regulation. The
TPS765xx quiescent current remains low even when the regulator drops out, eliminating both problems.
The TPS765xx family also features a shutdown mode that places the output in the high-impedance state
(essentially equal to the feedback-divider resistance) and reduces quiescent current to 1 ~ (typ). If the
shutdown feature is not used, EN should be tied to ground. Response to an enable transition is quick; regulated
output voltage is reestablished in typically 160 J1S.
minimum load requirements
The TPS765xx family is stable even at zero load; no minimum load is required for operation.
FB - pin connection (adjustable version only)
The FB pin is an input pin to sense the output voltage and close the loop for the adjustable option. The output
voltage is sensed through a resistor divider network to close the loop as it is shown in Figure 29. Normally, this
connection should be as short as possible; however, the connection can be made near a critical circuit to
improve performance at that point. Internally, FB connects to a high-impedance wide-bandwidth amplifier and
noise pickup feeds through to the regulator output. Routing the FB connection to minimize/avoid noise pickup
is essential.
external capaCitor reqUirements
An input capacitor is not usually required; however, a ceramic bypass capaCitor (0.047 ~F or larger) improves
load transient response and noise rejection if the TPS765xx is located more than a few inches from the power
supply. A higher-capacitance electrolytic capacitor may be necessary if large (hundreds of milliamps) load
transients with fast rise times are anticipated.
Like all low dropout regulators, the TPS765xx requires an output capacitor connected between OUT and GND
to stabilize the internal control loop. The minimum recommended capacitance value is 4.7 ~F and the ESR
(equivalent series resistance) must be between 300-mO and 20-0. Capacitor values 4.7 ~F or larger are
acceptable, provided the ESR is less than 20 Solid tantalum electrolytic, aluminum electrolytic, and multilayer
ceramic capacitors are all suitable, provided they meet the requirements described previously.
o.
~TEXAS
2-274
INSTRUMENTS
POST OFFICE BOX 855303 • DALlAS. TEXAS 75265
TPS76515, TPS76518, TPS76525,TPS76527
TPS76528, TPS76530, TPS76533, TPS76550,TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGESLVS236
REGULATORS
- AUGUST 1999
APPLICATION INFORMATION
external capacitor requirements (continued)
TPS765xx
5
6
IN
PG
IN
NCfFB
OUT
4
0.1 fLF
EN
OUT
2
PG
250kO
7
Vo
B
GND
3
r
I
I
I
I
IL
---.,I
Co
II
I
300mO
_
_ _ .JI
+
4.7fLF
Figure 28. Typical Application Circuit (Fixed Versions)
programming the TPS76501 adjustable LOO regulator
The output voltage of the TPS76501 adjustable regulator is programmed using an external resistor divider as
shown in Figure 29. The output voltage is calculated using:
Vo
= Vref
x (1
+ ~~)
(1)
Where
Vref = 1.224 V typ (the internal reference voltage)
Resistors R1 and R2 should be chosen for approximately 7-!1A divider current. Lower value resistors can be
used but offer no inherent advantage and waste more power. Higher values should be avoided as leakage
currents at FB increase the output voltage error. The recommended design procedure is to choose
R2 =169 k.Q to set the divider current at 7!1A and then calculate R1 using:
R1 = (V0 _ 1) x R2
V ref
(2)
OUTPUT VOLTAGE
PROGRAMMING GUIDE
TPS76501
vI
0.1 fLF
~2.0V
l-
'f'
IN
EN
PG
OUTPUT
VOLTAGE
PG
OUT
Vo
SO.BV
FBfNC
GND
1
00
R2
":"
2.5V
3.3V
3.6V
4.0V
5.0V
Rl
R2
174
287
324
383
523
169
169
169
169
169
UNIT
kO
kO
kO
kO
kO
":" 300mO
Figure 29. TPS76501 Adjustable LDO Regulator Programming
-!II TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS, TEXAS 75265
2-275
TPS76515, TPS76518,TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 - AUGUST 1999
APPLICATION INFORMATION
power-good indicator
The TPS765xx features a power-good (PG) output that can be used to monitor the status of the regulator. The
internal comparator monitors the output voltage: when the output drops to between 92% and 98% of its nominal
regulated value, the PG output transistor turns on, taking the signal low. The open-drain output requires a pullup
resistor. If not used, it can be left floating. PG can be used to drive power-on reset circuitry or used as a
low-battery indicator.
regulator protection
The TPS765xx PMOS-pass transistor has a built-in back diode that conducts reverse currents when the input
voltage drops below the output voltage (e.g., during power down). Current is conducted from the outputto the
input and is not internally limited. \"/hen extended reverse voltage is anticipated, external limiting may be
appropriate.
The TPS765xx also features internal current limiting and thermal protection. During normal operation, the
TPS765xx limits output current to approximately 0.8 A. When current limiting engages, the output voltage scales
back linearly until the overcurrent condition ends. While current limiting is designed to prevent gross device
failure, care should be taken not to exceed the power dissipation ratings of the package. If the temperature of
the device exceeds 150°C(typ), thermal-protection circuitry shuts it down. Once the device has cooled below
130°C(typ), regulator operation resumes.
power dissipation and junction temperature
Specified regulator operation is assured to a junction temperature of 125°C; the maximum junction temperature
should be restricted to 1250C under normal operating conditions. This restriction limits the power dissipation
the regulator can handle in any given application. To ensure the junction temperature is within acceptable limits,
calculate the maximum allowable dissipation, PO(max), and the actual dissipation, Po, which must be less than
or equal to PO(max).
The maximum-power-dissipation limit is determined using the following equation:
P
-
D(max) -
TJmax - TA
-"--=-----'-'
RSJA
Where
TJmax is the maximum allowable junction temperature
RaJA is the thermal resistance junction-to-ambient for the package, i.e., 176°CIW for the 8-terminal
SOIC.
TA is the ambient temperature.
The regulator dissipation is calculated using:
Power dissipation resulting from quiescent current is negligible. Excessive power dissipation will trigger the
thermal protection circuit.
~TEXAS
2-276
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS76615, TPS76618, TPS76625, TPS76627
TPS76628, TPS76630, TPS76633, TPS76650, TPS76601
ULTRA LOW QUIESCENT CURRENT 250-mA LOW-DROPOUT VOLTAGE REGULATORS
o PACKAGE
• 250-mA Low-Dropout Voltage Regulator
• Available in 1.5-V, 1.S-V, 2.5-V, 2.7-V, 2.S-V,
3.0-V, 3.3-V, 5.0-V Fixed Output and
Adjustable Versions
(TOP VIEW)
NCfFB[]a OUT
PG 2
7 OUT
GND 3
6 IN
EN 4
5 IN
• Dropout Voltage to 140 mV (Typ) at 250 mA
(TPS76650)
• Ultra-Low 35-j.iA Typical Quiescent Current
• 3% Tolerance Over Specified Conditions for
Fixed-Output Versions
• Open Drain Power Good
• S-Pin SOIC Package
• Thermal Shutdown Protection
description
This device is designed to have an ultra·low quiescent current and be stable with a 4.7·J.lF capacitor. This
combination provides high performance at a reasonable cost.
Because the PMOS device behaves as a low·value resistor, the dropout voltage is very low (typically 230 mV
at an output current of 250 mA for the TPS76650) and is directly proportional to the output current. Additionally,
since the PMOS pass element is a voltage·driven device, the quiescent current is very low and independent
of output loading (typically 35 j.iA over the full range of output current, 0 mA to 250 mA). These two key
specifications yield a significant improvement in operating life for battery· powered systems. This LDO family
also features a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the
quiescent current to less than 1 j.iA (typ).
TPS76633
TPS76633
DROPOUT VOLTAGE
vs
FREE·AIR TEMPERATURE
GROUND CURRENT
vs
LOAD CURRENT
35.0
=
-' -'
VI-3.2V
>
I
f
10-1
--
=
~
34.9 _ VO=3.3V
10= 250 mA
cc::I.
10=150mA
I
=
C
~::0
10=50mA
34.8 -
34.6
:;
"1:1
34.5
!
c
e
CJ
34.4
I
Q
34.3
::0
10=10mA
z
>
CJ
I
r
34.7
0
~ 10-2
I
TA=25°C
...- ...-
...- ...-
-
34.2
34.1
10-3
34
-50
-25
0
25
50
75
100
125
150
o
25
TA - Free-Air Temperature - °C
50
75 100 125 150 175 200 225 250
IL - Load Current - mA
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Copyright © 1999, Texas Instruments Incorporated
2-2n
TPS76615, TPS76618,TPS76625, TPS76627
TPS76628,TPS76630, TPS76633, TPS76650, TPS76601
ULTRA LOW QUIESCENT CURRENT 250-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS237 - AUGUST 1999
description (continued)
Power good (PG) is an active high output, which can be used to implement a power-on reset or a low-battery
indicator.
The TPS766xx is offered in 1.5-V, 1.S-V, 2.5-V, 2.7-V, 2.S-V, 3.0-V, 3.3-V and 5.0-V fixed-voltage versions and
in an adjustable version (programmable over the range of 1.25 V to 5.5 V). Output voltage tolerance is specified
as a maximum of 3% over line, load, and temperature ranges. The TPS766xx family is available in S pin sOle
package.
AVAILABLE OPTIONS
OUTPUT VOLTAGE
PACKAGED DEVICES
(V)
TJ
TYP
SOIC
(D)
5.0
TPS76650D
3.3
TPS76633D
3.0
TPS76630D
2.8
TPS76628D
2.7
TPS76627D
2.5
TPS76625D
1.8
TPS76618D
1.5
TPS76615D
Adjustable
1.25 V to 5.5 V
TPS76601D
-40°C to 125°C
The TPS76601 IS programmable using an external resistor divider (see application
information). The D package is available taped and reeled. Add an R suffix to the
device type (e.g., TPS76601 DR).
TPS766xx
5
IN
PG
IN
NC/FB
6
OUT
O.1I1F
2
7
4
OUT
EN
PG
Vo
---~
I
I
I
I
300m!l I
....
cot
+
GND
3
4.711F
--_
t See application information section for capacitor selection details.
Figure 1. Typical Application Configuration for Fixed Output Options
"!I1TEXAS
INSTRUMENTS
2-278
POST -OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS76615, TPS76618,TPS76625, TPS76627
TPS76628, TPS76630, TPS76633,TPS76650, TPS76601
ULTRA LOW QUIESCENT CURRENT 250-mA LOW-DROPOUT VOLTAGESLVS237
REGULATORS
- AUGUST 1999
functional block diagram-adJustable version
IN
----+-..----1-.-+--.-------,
EN - - -......-+\
r------jf----- PG
OUT
R1
FB/Ne
R2
GND
External to the device
functional block diagram-fixed-voltage version
IN
-----+--.-------1----e--+--+--------,
EN - - -......-+\
, - - - f - - - - PG
f--___._-
OUT
R1
R2
GND
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-279
TPS76615, TPS76618,TPS76625, TPS76627
TPS76628, TPS76630, TPS76633, TPS76650, TPS76601
ULTRA LOW QUIESCENT CURRENT 250-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS237 - AUGUST 1999
Terminal Functions - sOle Package
TERMINAL
NAME
NO.
I/O
DESCRIPTION
EN
4
I
Enable input
FBINC
1
I
Feedback input voltage for adjustable device (no connect for fixed options)
GND
3
IN
5
I
Input voltage
Regulator ground
IN
6
I
Input voltage
OUT
7
0
Regulated output voltage
OUT
8
0
Regulated output voltage
PG
2
0
PGoutput
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)t
Input voltage range:!:, VI .......................................................... -0.3 V to 13.5 V
Voltage range at EN ............................................................. -0.3 V to 16.5 V
Maximum PG voltage ..................................................................... 16.5 V
Peak output current ............................................................. Internally limited
Continuous total power dissipation ..................................... See dissipation rating tables
Output voltage, Vo (OUT, FB) ............................................................... 7 V
Operating virtual junction temperature range, TJ .................................... -40°C to 125°C
Storage temperature range, Tstg .................................................. -65°C to 150°C
ESO rating, HBM ......................................................................... 2 kV
t Stresses beyond those listed under "absolute maximum ratings· may cause-permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those Indicated under "recommended operating conditions" is not
Implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
:1= All voltage values are with respect to network tenninal ground.
DISSIPATION RATING TABLE 1 - FREE-AIR TEMPERATURES
PACKAGE
D
AIRFLOW
(CFM)
TAc25°C
POWER RATING
0
250
DERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
TA=85°C
POWER RATING
568mW
5.68mW/"C
312mW
227mW
904mW
9.04mW/"C
497mW
361 mW
recommended operating conditions
MIN
MAX
Input voltage, Vp\-
2.7
10
Output voltage range, Vo
1.2
5.5
V
0
250
mA
-40
125
°C
Output current, 10 (Note 1)
Operating virtual junction temperature, TJ (Note 1)
1< To calculate the minimum Input voltage for your maximum output current, use the following equation: VI(mln)
UNIT
V
=VO(max) + VDO(max load).
NOTE 1: Continuous current and operating junction temperature are limited by internal protection circuitry, but it is not recommended that the
device operate under conditions beyond those specified in this table for extended periods of time.
~1ExAs
2-280
INSTRUMENTS
POST OFFICE BOX 855303 • DALLAS, TEXAS 75265
TPS76615, TPS76618, TPS76625, TPS76627
TPS76628, TPS76630, TPS76633, TPS76650, TPS76601
ULTRA LOW QUIESCENT CURRENT 250-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS237-AUGUST 1999
electrical characteristics over recommended operating free-air temperature
Vi VO(typ) + 1 V, 10 10 /-lA, EN 0 V, Co 4.7 J.lF (unless otherwise noted)
=
=
=
PARAMETER
TEST CONomONS
TPS76601
TPS76615
TPS76618
TPS76625
Output voltage
(10 IlA to 250 mA load)
(see Note 2)
TPS76627
TPS76628
TPS76630
TPS76633
TPS76650
5.5 V~Vo~ 1.25 V.
TJ = 25°C
5.5 V~Vo~ 1.25 V.
TJ = -40°C to 125°C
TJ = 25°C.
2.7V
3.300
VI=4.3V
TA=25°C
1\
> 1.492
'\
I
CD
I
3.298
""
...........
o
b 3.294
;i
~
>'
3.292
i
1.490
o
"
b 1.489
100
150
200
IL - Load Current - mA
250
o
50
100
250
200
TPS76615
OUTPUT VOLTAGE
vs
vs
FREE·AIR TEMPERATURE
1.505
10 = 10 IIA
3.305
3.300
>
&3.295
~
150
FREE·AIR TEMPERATURE
VI=4.3V
3.285
-........
Figure 3
3.310
i
~
IL - Load Current - mA
TPS76633
OUTPUT VOLTAGE
3.290
........
1.488
Figure 2
;i.I!I
..........
>'
1.487
50
i'oo..
l1.491
..........
o
1\
CD
~
3.296
3.29
VI=2.7V
TA=25°C
I
~
i
1.493
/
/
/
,/
VI=2.7V
vr
1.500
>
./
I 1.495
V
10=250mA _
--
I
b 3.280 ...../ V
>'
3.275
t
-
~
'S 1.490
!b
r--..
/
/
~
/
V
.,- ~
10=101lA
I
,/'
I
-
10= 250 mA
/
1.485
:>
1.480
3.270
3.265
-50
-25
0
25
50
75
100 125
TA - Free·Alr Temperature - °C
150
1.475
-50
-25
Figure 4
0
25
50
75
100
125
150
TA - Free·Alr Temperature - °C
Figure 5
-!I1lExAs
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-283
TPS76615, TPS76618, TPS76625, TPS76627
TPS76628, TPS76630, TPS76633, TPS76650, TPS76601
ULTRA LOW QUIESCENT CURRENT 250-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS237-AUGUST 1999
TYPICAL CHARACTERISTICS
TPS76633
GROUND CURRENT
TPS76615
GROUND CURRENT
va
va
LOAD CURRENT
LOAD CURRENT
35.0
VO=3.3V
TA=2S°C
34.9
'"
::I.
I
C
~
::J
(.)
"a
34.8
'"
34.7
::I.
I
34.6
c
34.5
e
CJ
34.4
::J
!---
I
--
-
-
I---
~
a
33.8 1---+--+-1--+--+----1-+--+---+---1
33.7 t--t--+-t--+--t--f-+--+--t---l
33.6t--t--+-t--+--t--f-+--+--t---l
~
33.5t--t--+-t--+--t--f-+--+--t---l
CJ
33.4 t--t--+-t--+--t--f-+--+--t---l
e
I
c
34.3
!E
34.2
z
VO=1.5V
TA = 25°C +--+--t-+-+-+-t-"'"I
33.9
C
Z
CJ
33.3
33.2
':tJ~~tl~=El:t=l
~
34.1
33.1 t--t--+-t--+--t--f-+--I---t---l
34.0
33.0
o
2S
50
75 100 125 150 175 200 22S 250
IL - Load Current - mA
L...-....l--..L._I..-...L--L........I_...L--'---L----J
o
2S
50
75 100 125 150 175 200 22S 250
IL - Load Current - mA
Figure 6
Figure 7
TPS76633
GROUND CURRENT
50
50
C
~
40
35
e
30
I
2S
CJ
c
z
!E
va
FREE-AIR TEMPERATURE
55
4S
::J
(.)
"a
C
::J
va
FREE-AIR TEMPERATURE
55
'"
::I.
I
TPS76615
GROUND CURRENT
------
'"
::I.
I
C
I!!
40
(.)
"a
35
~
.--
c
::J
e
CJ
I
z
!E
2S
20 _
15 I-- VO=3.3V
lo=2S0mA
-50
30
C
20
10
4S
I
---
50
100
TA - Free-Air Tempereture - °C
150
-50
FigureS
I
o
50
100
TA - Free-Air Tempereture - °C
Figure 9
~TEXAS
2-284
--
VO=1.5V
lo=250mA
15
o
...-- .....--
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
150
TPS76615,TPS76618,TPS76625,TPS76627
TPS76628,TPS76630,TPS76633,TPS76650,TPS76601
ULTRA LOW QUIESCENT CURRENT 250-mA LOW-DROPOUT VOLTAGESLVS237
REGULATORS
- AUGUST 1999
TYPICAL CHARACTERISTICS
TPS76633
TPS76633
POWER SUPPLY RIPPLE REJECTION
OUTPUT SPECTRAL NOISE DENSITY
vs
vs
FREQUENCY
FREQUENCY
70
III
'IS
I
C
0
60
JII~ ~~~ Vi
~
'Ii
f
a:
CD
...
50
is.
.,
Go
a:
>-
is.
Go
:s
40
~
III
I
30
a:
a:
20
D..
I
III
CO= 10ILF
10=250 mA
TA=25°C
r-
I'
If
10
10
100
1k
10k
100k
1M
10M
f - Frequency - Hz
f - Frequency - Hz
Figure 10
Figure 11
TPS76633
OUTPUT IMPEDANCE
vs
FREQUENCY
VI=4.3V
CO= 1O ILF
TA = 25°C
I-
10=1 mA
~
II
10-2 r-I
10
II~ ~ 1~50 i~ I
100
1k
10k
100k
1M
f - Frequency - Hz
Figure 12
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-285
TPS76615, TPS76618, TPS76625, TPS76627
TPS76628,TPS76630,TPS76633,TPS76650,TPS76601
ULTRA LOW QUIESCENT CURRENT 250-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS237 - AUGUST 1999
TYPICAL CHARACTERISTICS
TPS76650
TPS76633
DROPOUT VOLTAGE
vs
FREE·AIR TEMPERATURE
DROPOUT VOLTAGE
vs
FREE·AIR TEMPERATURE
100
~ V,=4.9V
;:: V,=3.2V
'-
'-
'0= 250 mA
-
>
1
t
10-1
'o=150mA
J
ig
1
,-
r--
==
'o=150mA
-
'o=10mA
== ~
'o=10mA
>
10-3
10-3
-50
-25
0
25
50
75
100
125
-50
150
-25
TA - Free-Air Temperature - °C
0
1
i~ 100
II
O~
_
125
TPS76615
LOAD TRANSIENT RESPONSE
"I
150
400
"1
>
CL=4.7ILF
TA = 25°C
.;
~
i&
..c!!
'f~
200
A-
0
~i-200
0
-50
1
1
!
3.7
2.7
I""'
>"
i
i
CL=4.7j1F
TA = 25°C
_
-400
250
0
1
o
.P
100 200 300 400 500 600 700 800 900 1000
t- nn'le- iJ.8
o
100 200 300 400 500 600 700 800 900 1000
t-nme-iJ.8
Figure 16
Figure 15
~1ExAs
INSTRUMENTS
2-266
100
TPS76615
1
1
75
LINE TRANSIENT RESPONSE
>
t~
i
50
Figure 14
50
1'5
ea.
=
i:= 10=50mA
'O=50mA
10-2
10 = 250 mA
POST OFFICE BOX 655305 • DALlAS. TEXAS 75265
TPS76615, TPS76618, TPS76625, TPS76627
TPS76628, TPS76630, TPS76633, TPS76650, TPS76601
ULTRA LOW QUIESCENT CURRENT 250-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS237 - AUGUST 1999
TYPICAL CHARACTERISTICS
TPS76633
LINE TRANSIENT RESPONSE
>
~
.;:;
_
100
alGI
Cal
alai
.I:!:t::
tJ~
1-
~i
o
TPS76633
LOAD TRANSIENT RESPONSE
400
I Ii
CL=4.711f
TA=25°C
C
5.3
~i-200
o
~
If
~
I
4.3
I
I
I
C
...
250
~
I,.
1
>"
I
o
I
o
.9
o
100 200 300 400 500 600 700 800 900 1000
100 200 300 400 500 600 700 800 900 1000
t-Time-1lS
Figure 18
t-nme-1lS
Figure 17
TPS76633
OUTPUT VOLTAGE
TPS76601
DROPOUT VOLTAGE
vs
vs
TIME (AT STARTUP)
INPUT VOLTAGE
4
>
0.60
....--------r---....-----,---.-----,
I
i
3
I~
2
~
10 = 250 mA
0.50 1----+--+----+---1----1
>
i
0.401---4,--+--+---I---j-----I
~
15
0.30
I
o
II
!
>
I
g
I
Jl
4.3
!
o
.t
-
1-
-50
~
.~
0
tJ~
>
-100
I.
CL= 4.7 I1F
TA=25°C
200
I
alGI
.21
0
i
E
Ii
50
.~
>
0.20 l--.....3Ioood----t=-....::1:=----j------""""'-1
>
o
0.10
100 200 300 400 500 600 700 800 900 1000
t-nme-1lS
Figure 19
1--~-+--=.,...,;2_--,---j-----I
L~~~=t=j::::::~;::J
0.00 '--_--'-_ _...1.-_-'-_ _- ' - _ - - - '
2.50
3.00
3.50
4.00
4.50
5.00
VI-Input Voltage - V
Figure 20
~1ExAs
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-287
TPS76615,TPS76618,TPS76625,TPS76627
TPS76628,TPS76630,TPS76633,TPS76650,TPS76601
ULTRA LOW QUIESCENT CURRENT 250-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS237 - AUGUST 1999
TYPICAL CHARACTERISTICS
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCEt
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCEt
vs
vs
OUTPUT CURRENT
OUTPUT CURRENT
Cl
Cl
I
I
§
8c
101
I
J 100
'i
II:
II:
I
:s
.B'
101
.!
Xl
~
c
100
..
~:s
1:1'
w 10-1
10-1
I
I
II:
ffi
ffi
10-2
o
50
10-2
100
150
200
250
o
50
100
150
200
250
10 - Output Current - mA
10 - Output Current - mA
Figure 22
Figure 21
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCEt
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCEt
vs
vs
OUTPUT CURRENT
OUTPUT CURRENT
10-2
o
50
100
150
200
250
10 - Output Current - mA
10 - Output Current - mA
Figure 24
Figure 23
t Equivalent series resistance (ESR) refers to the total series resistance, including the ESR of the capacitor, any series resistance added
externally, and PWB trace resistance to CO,
~TEXAS
2-288
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS76615, TPS76618, TPS76625, TPS76627
TPS76628,TPS76630,TPS76633,TPS76650,TPS76601
ULTRA LOW QUIESCENT CURRENT 250-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS237 - AUGUST 1999
TYPICAL CHARACTERISTICS
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCEt
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCEt
vs
vs
ADDED CERAMIC CAPACITANCE
ADDED CERAMIC CAPACITANCE
OJ
I
I
!
I
0
10
'~~~~~~~~~~~~~~
1,0-, ,. . . . .
.....1............
I
m
o
0.2
0.4
0.6
0.8
1.0
o
Added Ceramic Capacllance -IIF
0.2
Figure 25
IN
0.4
0.6
0.8
1.0
Added Ceramic Capacitance -IIF
Figure 26
To Load
OUTr---~~-~--------__----~
+
Co
ESR
LJL
Figure 27. Test Circuit for Typical Regions of Stability (Figures 21 through 24) (Fixed Output Options)
t
Equivalent series resistance (ESR) refers to the total series resislance, including the ESR of the capacitor, any series resislance added
externally, and PWB trace resistance to CO.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS, TEXAS 75265
2-289
TPS76615, TPS76618, TPS76625, TPS76627
TPS76628, TPS76630, TPS76633, TPS76650, TPS76601
ULTRA LOW QUIESCENT CURRENT 250-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS237 - AUGUST 1999
APPLICATION INFORMATION
The TPS766xx family includes eight fixed-output voltage regulators (1.5 V, 1.8 V, 2.5 V, 2.7 V, 2.8 V, 3.0 V,
3.3 V, and 5.0 V), and an adjustable regulator, the TPS76601 (adjustable from 1.25 V to 5.5 V).
device operation
The TPS766xx features very low quiescent current, which remains virtually constant even with varying loads.
Conventional LDO regulators use a pnp pass element, the base current of which is directly proportional to the
load current through the regulator (16 Icll3). The TPS766xx uses a PMOS transistor to pass current; because
the gate of the PMOS is voltage driven, operating current is low and invariable over the full load range.
=
Another pitfall associated with the pnp-pass element is its tendency to saturate when the device goes into
dropout. The resulting drop in 13 forces an increase in 16 to maintain the load. During power up, this translates
to large start-up currents. Systems with limited supply current may fail to start up. In battery-powered systems,
it means rapid batterl discharge when the voltage decays below the minimum required for regulation. The
TPS766xx quiescent current remains low even when the regulator drops out, eliminating both problems.
The TPS766xx family also features a shutdown mode that places the output in the high-impedance state
(essentially equal to the feedback-divider resistance) and reduces quiescent current to 1 ~ (typ). If the
shutdown feature is not used, EN should be tied to ground. Response to an enable transition is quick; regulated
output voltage is reestablished in typically 160 JlS.
minimum load requirements
The TPS766xx family is stable even at zero load; no minimum load is required for operation.
FB - pin connection (adjustable version only)
The FB pin is an input pin to sense the output voltage and close the loop for the adjustable option. The output
voltage is sensed through a resistor divider network to close the loop as it is shown in Figure 29. Normally, this
connection should be as short as possible; however, the connection can be made near a critical circuit to
improve performance at that point. Internally, FB connects to a high-impedance wide-bandwidth amplifier and
noise pickup feeds through to the regulator output. Routing the FB connection to minimize/avoid noise pickup
is essential.
external
capacl~or
requirements
An input capaCitor is not usually required; however, a ceramic bypass capacitor (0.047 IlF or larger) improves
load transient response and noise rejection if the TPS766xx is located more than a few inches from the power
supply. A higher-capacitance electrolytic capacitor may be necessary if large (hundreds of milliamps) load
transients with fast rise times are anticipated.
Like all low dropout regulators, the TPS766xx requires an output capacitor connected between OUT and GND
to stabilize the internal control loop. The minimum recommended capacitance value is 4.71lF and the ESR
(equivalent series resistance) must be between 300-mil and 20-n Capacitor values 4.7 IlF or larger are
acceptable, provided the ESR is less than 20 n Solid tantalum electrolytic, aluminum electrolytic, and multilayer
ceramic capacitors are all suitable, provided they meet the requirements described previously.
~TEXAS
2-290
INSTRUMENTS
POST OFFICE SOX 655303 • DALLAS, TEXAS 75265
TPS76615, TPS76618,TPS76625, TPS76627
TPS76628, TPS76630, TPS76633, TPS76650, TPS76601
ULTRA LOW QUIESCENT CURRENT 250-mA LOW-DROPOUT VOLTAGESLVS237-AUGUST
REGULATORS
1999
APPLICATION INFORMATION
external capacitor requirements (continued)
TPS766xx
5
IN
PG
IN
NCfFB
6
OUT
4
0.111F
EN
OUT
2
PG
250 k.Q
7
Va
8
GND
3
r
I
I
I
I
I
---,I
Co
+ 4.711F
I
I
300mO
_
_ _ oJI
L
Figure 28. Typical Application Circuit (Fixed Versions)
programming the TPS76601 adjustable LDO regulator
The output voltage of the TPS76601 adjustable regulator is programmed using an external resistor divider as
shown in Figure 29. The output voltage is calculated using:
= Vref x (1 + ~~)
V0
(1)
Where
Vref =1.224 V typ (the internal reference voltage)
Resistors R1 and R2 should be chosen for approximately 7-1JA divider current. Lower value resistors can be
used but offer no inherent advantage and waste more power. Higher values should be avoided as leakage
currents at FB increase the output voltage error. The recommended design procedure is to choose
R2 = 169 kO to set the divider current at 71JA and then calculate R1 using:
R1
=
(VV 0 _
ref
1) x R2
(2)
OUTPUT VOLTAGE
PROGRAMMING GUIDE
TPS76601
VI
IN
PG
OUTPUT
VOLTAGE
PG
0.1 11FT
;;'2.0 V
I......:;;0.8 V
EN
OUT
FBfNC
GND
Vo
R2
ICc
R1
R2
UNIT
2.5V
174
3.3V
287
169
169 .
kO
3.6V
324
169
kO
4.0V
383
169
k.Q
5.0 V
523
169
k.Q
k.Q
_ 300mO
Figure 29. TPS76601 Adjustable LOO Regulator Programming
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • OALlAS. TEXAS 75265
2-291
TPS76615,TPS76618,TPS76625,TPS76627
TPS76628, TPS76630, TPS76633, TPS76650, TPS76601
ULTRA LOW QUIESCENT CURRENT 250-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS237 - AUGUST 1999
APPLICATION INFORMATION
power-good Indicator
The TPS766xx features a power-good (PG) output that can be used to monitor the status of the regulator. The
internal comparator monitors the output voltage: when the output drops to between 92% and 98% of its nominal
regulated value, the PG output transistor turns on, taking the signal low. The open-drain output requires a pullup
resistor. If not used, it can be left floating. PG can be used to drive power-on reset circuitry or used as a
low-battery indicator.
regulator protection
The TPS766xx PMOS-pass transistor has a built-in back diode that conducts reverse currents when the input
voltage drops below the output voltage (e.g., during power down). Current is conducted from the output to the
input and is not internally limited. When extended reverse voltage is anticipated, external limiting may be
appropriate.
The TPS766xx also features internal current limiting and thermal protection. During normal operation, the
TPS766xx limits output current to approximately O.81JA (typ). When current limiting engages, the output voltage
scales back linearly until the overcurrent condition ends. While current limiting is designed to prevent gross
device failure, care should be taken not to exceed the power dissipation ratings of the package. If the
temperature of the device exceeds 150°C(typ), thermal-protection circuitry shuts it down. Once the device has
cooled below 130°C(typ), regulator operation resumes.
power diSSipation and junction temperature
Specified regulator operation is assured to a junction temperature of 125°C; the maximum junction temperature
should be restricted to 125°C under normal operating conditions. This restriction limits the power dissipation
the regulator can handle in any given application. To ensure the junction temperature is within acceptable limits,
calculate the maximum allowable diSSipation, PO(max}, and the actual dissipation, Po, which must be less than
or equal to PO(max}'
The maximum-power-dissipation limit is determined using the following equation:
P
_ TJmax - TA
D(max) R.SJA
Where
TJmax is the maximum allowable junction temperature
RaJA is the thermal resistance junction-to-ambient for the package, i.e., 176°CIW for the 8-terminal
SOIC.
TA is the ambient temperature.
The regulator dissipation is calculated using:
Po = (VI - Vo) x 10
Power dissipation resulting from quiescent current is negligible. Excessive power dissipation will trigger the
thermal protection circuit.
:ilTEXAS
2-292
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS76715Q,TPS76718Q,TPS76725Q,TPS76727Q
TPS76728Q,TPS76730Q TPS76733Q,TPS76750Q,TPS76701Q
FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS
PWPPACKAGE
(TOP VIEW)
• 1 A Low-Dropout Yoltage Regulator
• Available In 1.5-Y, 1.8-Y, 2.5-Y, 2.7-Y, 2.8-Y,
3.0-Y, 3.3-Y, 5.Q-Y Fixed Output and
Adjustable Yersions
GND/HSINK
GNDIHSINK
GND
NC
EN
• Dropout Yoltage Down to 230 mY at 1 A
(TPS76750)
• Ultra Low 85
IJA Typical Quiescent Current
• Fast Transient Response
• 2% Tolerance Over Specified Conditions for
Fixed-Output Yersions
20
19
18
17
16
15
14
4
5
7
8
9
IN
NC
GND/HSINK
GND/HSINK
• Open Drain Power-On Reset With 200-ms
Delay (See TPS768xx for PG Option)
1
2
3
10
GND/HSINK
GND/HSINK
NC
NC
RESET
FB/NC
OUT
OUT
GND/HSINK
GND/HSINK
13
12
11
NC - No internal connection
• 8-Pin SOIC and 20-Pln TSSOP PowerPADTM
(PWP) Package
DPACKAGE
(TOP VIEW)
• Thermal Shutdown Protection
description
GNDD8
EN
2
7
IN
3
6
IN
4
5
This device is designed to have a fast transient
response and be stable with 1O-~F low ESR
capacitors. This combination provides high
performance at a reasonable cost.
RESET
FBINC
OUT
OUT
TPS76733
DROPOUT VOLTAGE
vs
TPS76733
LOAD TRANSIENT RESPONSE
FREE-AIR TEMPERATURE
>
100
I
.5 E
&!
Cal
10=1 A
~
102
.!!
o~
1-
I
aI
0
,/"
~ii
III
!
101
10-1
10=0
CO= 1O I1F
10-2
~O
-40 -20
20
40
60
'S
0.5
!
o
I
2
I
0
-100
I
80 100 120 140
o
~
TA - Free-Air Temperature - °C
40
60
801001~14O160180~0
t- Tlme-1lS
PowerPAD is a trademark of Texas Instruments Inco/flOrated.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
Copyright © 1999. Texas Instruments Incorporated
2-293
TPS7671SQ,TPS76718Q,TPS7672SQ,TPS76727Q
TPS76728Q,TPS76730Q TPS76733Q,TPS767S0Q,TPS76701Q
FAST·TRANSIENT·RESPONSE 1·A LOW·DROPOUT VOLTAGE REGULATORS
SLVS20BC - MAY 1999 - REVISED SEPTEMBER 1999
description (continued)
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 230 mV
at an output current of 1 A for the TPS76750) and is directly proportional to the output current. Additionally, since
the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output
loading (typically 85 ~ over the full range of output current, 0 mA to 1 A). These two key specifications yield
a significant improvement in operating life for battery-powered systems. This LOO family also features a sleep
mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the quiescent current to
1 ~ at TJ =25°C.
The RESET output of the TPS767xx initiates a reset in microcomputer and microprocessor systems in the event
of an undervoltage condition. An internal comparator in the TPS767xx monitors the output voltage of the
regulator to detect an undervoltage condition on the regulated output voltage.
The TPS767xx is offered in 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V, 3.0-V, 3.3-V and 5.0-V fixed-voltage versions and
in an adjustable version (programmable over the range of 1.5 V to 5.5 Vj. Output voltage toierance is specified
as a maximum of 2% over line, load, and temperature ranges. The TPS767xx family is available in 8 pin SOIC
and 20 pin PWP packages.
.
AVAILABLE OPTIONS
TJ
-40"C to 12SoC
OUTPUT
VOLTAGE
(V)
PACKAGED DEVICES
TYP
TSSOP
(PWP)
SOIC
(D)
s.o
TPS767S0Q
TPS767S0Q
3.3
TPS76733Q
TPS76733Q
3.0
TPS76730Q
TPS76730Q
2.8
TPS76728Q
TPS76728Q
2.7
TPS76727Q
TPS76727Q
2.S
TPS7672SQ
TPS7672SQ
1.8
TPS76718Q
TPS76718Q
1.S
TPS7671SQ
TPS7671SQ
Adjustable
1.SVtoS.SV
TPS76701Q
TPS76701Q
The TPS76701 IS programmable uSing an external resistor divider (see application
information). The D and PWP packages are available taped and reeled. Add an R
suffix to the device type (e.g., TPS76701 QDR).
TPS767xx
6
IN
RESET
16
RESET
7
IN
OUT
S
O.lIlF
EN
OUT
14
Vo
13
GND
I'"
I
I
L
3
---,I
+
cot
10llF
I
---.I
t See application Information section for capacitor selection details.
Figure 1. Typical Application Configuration (For Fixed Output Options)
~TEXAS
INSTRUMENTS
2-294
POST OFFICE
eox 655303 •
DALLAS. TEXAS 7_5
TPS76715Q,TPS76718Q,TPS76725Q,TPS76727Q
TPS76728Q,TPS76730Q TPS76733Q,TPS76750Q,TPS76701Q
FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT
VOLTAGE REGULATORS
SLVS208C - MAY 1999 - REVISED SEPTEMBER 1999
functional block diagram-adJustable version
IN
----+-_---1_--+------_-----,
EN ----*"~
f---+_-=O=UT'--f~-I
,
,
,
,,
R1 ,
200ms Delay
FB/NC
,
R2'
,
L_..J
GND
External to the device
functional block diagram-fixed-voltage version
IN
----t-..-----j----.-+------.-------,
EN ----*"~
1---"1- OUT
200 ms Delay
GND
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75285
2-295
TPS7671SQ,TPS76718Q,TPS7672SQ,TPS76727Q
TPS76728Q,TPS76730Q TPS76733Q,TPS767S0Q,TPS76701Q
FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS
SLVS208C - MAY 1999 - REVISED SEPTEMBER 1999
Terminal Functions - sOle Package
TERMINAL
NAME
I/O
NO.
DESCRIPTION
EN
2
I
Enable input
FB/NC
7
I
Feedback input voltage for adjustable device (no connect for fixed options)
GND
1
I
Input voltage
Regulator ground
IN
3,4
OUT
5,6
0
Regulated output voltage
8
0
RESET output
RESET
Terminal Functions - PWP Package
TERMINAL
NAME
EN
FBINC
GND
GND/HSINK
NO.
5
15
Enable input
I
Feedback input voltage for adjustable devlce (no connect for fixed options)
3
Regulator ground
Groundlheatsink
IN
6,7
4,8,17,18
RESET
I
1,2,9,10,11,
12,19,20
NC
OUT
DESCRIPTION
I/O
I
Input voltage
No connect
13,14
0
Regulated output voltage
16
0
RESET output
-!!1TEXAS
2-296
INSTRUMENTS
POST OFFICE sox 655303 • DALLAS, TEXAS 75265
TPS76715Q,TPS76718Q,TPS76725Q,TPS76727Q
TPS76728Q,TPS76730Q TPS76733Q,TPS76750Q,TPS76701Q
FAST·TRANSIENT·RESPONSE 1·A LOW·DROPOUT
VOLTAGE REGULATORS
SLVS208C - MAY 1999 - REVISED SEPTEMBER 1999
timing diagram
VI
y~t-t+-+--!_ _V_ _ _)~I~~vres
Vo
Threshold
Voltage
I
I
T
I
RESET
VIT +*
VIT +*
----------_
----------~
I ~
VIT_*
200 ms
~=lf-_...Ji ~~
I Less than 5% of the
I I output voltage
I I
I I
I I
I i+-*-
Vrr_*
I I
I I
I I
I
I I
u- ~ u_
200 ms
Output
t~
t Vres is the minimum input voltage for a valid RESET. The symbol Vres is not currently listed within EIA or JEDEC standards
for semiconductor symbology.
:I: VIT -Trip voltage is typically 5% lower than the output voltage (95%Vol VITto VIT+ is the hysteresis voltage.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS, TEXAS 75265
2-297
TPS76715Q,TPS76718Q,TPS76725Q,TPS76727Q
TPS76728Q,TPS76730Q TPS76733Q,TPS76750Q,TPS76701Q
FAST·TRANSIENT·RESPONSE 1·A LOW·DROPOUT VOLTAGE REGULATORS
SLVS208C - MAY 1999 - REVISED SEPTEMBER 1999
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)t
Input voltage range:!:, VI .......................................................... -0.3 V to 13.5 V
Voltage range at EN .......................................................... -0.3 V to VI + 0.3 V
Maximum RESET voltage ................................................................. 16.5 V
Peak output current ............................................................. Internally limited
Output voltage, Va (OUT, FB) ............................................................... 7 V
Continuous total power dissipation ..................................... See dissipation rating tables
Operating virtual junction temperature range, TJ .................................... -40°C to 125°C
Storage temperature range, Tstg .................................................. -65°C to 150°C
ESD rating, HBM ......................................................................... 2 kV
t
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions· is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
All voltage values are with respect to network terminal ground.
*
DISSIPATION RATING TABLE 1 - FREE-AIR TEMPERATURES
PACKAGE
o
AIRFLOW
(CFM)
TA < 25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
0
568mW
5.68mW/oC
312mW
227mW
250
904mW
9.04mW/oC
497mW
361 mW
TA = 85°C
POWER RATING
DISSIPATION RATING TABLE 2 - FREE-AIR TEMPERATURES
PACKAGE
PWP#
PWPII
AIRFLOW
(CFM)
TA < 25°C
POWER RATING
0
2.9W
23.5mW/oC
1.9W
1.5W
300
4.3W
34.6mW/oC
2.8W
2.2W
0
3W
1.5W
7.2W
23.8mW/oC
57.9mW/oC
1.9W
300
4.6W
3.8W
DERATING FACTOR
ABOVE TA = 25°C
TA=70°C
POWER RATING
TA = 85°C
POWER RATING
# ThiS parameter IS measured With the recommended copper heat Sink pattem on a 1-layer PCB, 5-1n x 5-ln PCB, 1 oz. copper,
2-in x 2-in coverage (4 in2 ).
II This parameter is measured with the recommended copper heat sink pattern on a 8-layer PCB, 1.5-ln x 2-in PCB, 1 oz. copper
with layers 1,2,4,5,7, and 8 at 5% coverage (0.9 in2 ) and layers 3 and 6 at 100% coverage (6 in2 ). For more information, refer
to TI technical brief SLMA002.
recommended operating conditions
MIN
MAX
Input voltage, Vrk
2.7
10
V
Output voltage range, Vo
1.5
5.5
V
0
1.0
A
-40
125
°C
Output current, 10 (Note 1)
Operating virtual junction temperature, TJ (Note 1)
UNIT
* To calculate the minimum input voltage for your maximum output current, use the following equation: VI(min) = VO(max) + VOO(max load)'
NOTE 1: Continuous current and operating junction temperature are limited by internal protection circuitry, but it is not recommended that the
device operate under conditions beyond those specified in this table for extended periods of time.
~TEXAS
INSTRUMENTS
2-298
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS76715Q,TPS76718Q,TPS76725Q,TPS76727Q
TPS76728Q,TPS76730Q TPS76733Q,TPS76750Q,TPS76701Q
FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT
VOLTAGE REGULATORS
SLVS208C - MAY 1999 - REVISED SEPTEMBER 1999
electrical characteristics over recommended operating free-air temperature
Vi VO(typ) + 1 V, 10 1 mA, EN 0 V, Co 10 /!F (unless otherwise noted)
=
=
=
PARAMETER
TEST CONDITIONS
TPS76701
TPS76715
TPS76718
TPS76725
Output voltage
(10 IJA to 1 A load)
(see Note 2)
TPS76727
TPS76728
TPS76730
TPS76733
TPS76750
Quiescent current (GND current)
EN = OV, (see Note 2)
Output voltage line regulation (INoNo)
(see Notes 2 and 3)
1.5 V,,; Vo ,,; 5.5 V,
MIN
TJ = 25°C
1.5 V ,,; Vo,,; 5.5 V,
TJ = -40°C to 125°C
TJ = 25°C,
2.7V 3.2825
I
;3.2820
~
/
&'3.2815
B
~3.2810
3.2805
3.2800
VI=2.7V
TA = 25°C
VI=4.3V
TA = 25°C
/
V
l/
........
-
l/
1.4980
V
> 1.4975
I
i1.4970
B
1.4955
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
10 - Output Current - A
1
V
V
~
o
0.1
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
10 - Output Current - A
Figure 2
TPS76725
TPS76733
OUTPUT VOLTAGE
OUTPUT VOLTAGE
vs
vs
OUTPUT CURRENT
FREE-AIR TEMPERATURE
I
3.32
.1.
VI=3.5V
TA=25°
~
V
/
2.4955
2.4950
I
/
,
./
2.4935
I
~2.4930
>
3.30
&
1l!
.I~
3.29
A~
I
V
~
"$
/
!
0
10=1A
3.28
I
~ 3.27
j
o
I
3.31
3.26
2.4925 IV
2.4920
I
VI=4.3V
/
>
1
Figure 3
2.4960
I:::
!
...-V
j
~1.4960
1.4950
0.1
/
&'1.4965
V
o
./
~
,/'
V
V
,/'
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
10 - Output Current - A
1
........:
:/
~
3.25
0
~
I~~
~
7
10=1mA
V
-60 -40 -20
Figure 4
0 20 40 60 80 100 120 140
TA - Free-Air Temperature - °C
FigureS
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-301
TPS7671SQ,TPS76718Q,TPS7672SQ,TPS76727Q
TPS76728Q,TPS76730Q TPS76733Q,TPS767S0Q,TPS76701Q
FAST·TRANSIENT·RESPONSE 1·A LOW·DROPOUT VOLTAGE REGULATORS
SLVS208C - MAY 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
1.515
TPS76715
TPS76725
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
I
2.515
I
,
/
1.510
i
/
>
1.505
~
_ 1.500
10=1~
Jb
:>
1.490
/ l/
./
/;'
/
/'
/'
""
~Y
>
~/
2.505
III
,
2.500
~
./
",
}
/
2.495
V
I
V
~ 2.490
,/
2.485
",
~V
Figure 7
TPS76733
TPS76715
GROUND CURRENT
vs
FREE-AIR TEMPERATURE
GROUND CURRENT
vs
FREE-AIR TEMPERATURE
88
::!.
~:::I
82
1!:::I
80
CJ
78
~
0
e
10=1 A
76
74
...
~~
~
~
#
::!.
I
V~
l
90
10=1 mA
'0
c
:::I
85
",
e
CJ
I
10=500mA
V
,/
~V
, ~~
20
40
60
80 100 120 140
75-60 -40 -20
TA - Free-Air Temperature - °C
Figure 8
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
./
/"
~
I0=1A
V~
10 =500 mA
~
0
20
40
60
80 100 120 140
TA - Free-Air Temperature - °C
Figure 9
~TEXAS
2-302
,,/
80
0
... V
V~ "
:::I
0
I'
72
-60 -40 -20
./
95
C
~ '" 10=1mA
.....
.l
I
VI =2.7V
l#
VI=4.3V
1:
100
~
90
84
/
2.480
-60 -40 -20 0
20 40 60 80 100 120
TA - Free-Air Temperature - °C
92
86
~/
V / 10=1 mA
/'
Figure 6
I
~
10=1 A
1.485
-60 -40 -20 0 20 40 60 80 100 120 140
TA - Free-Air Temperature - °C
c
/
2.510
I
",
V/' ~=1mA
1.495
-'-
VI=3.5V
VI=2.7V
TPS76715Q, TPS76718Q,TPS76725Q,TPS76727Q
TPS76728Q,TPS76730Q TPS76733Q, TPS76750Q,TPS76701Q
FAST·TRANSIENT· RESPONSE 1·A LOW·DROPOUT
VOLTAGE REGULATORS
SLVS208C - MAY 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
TPS76733
OUTPUT SPECTRAL NOISE DENSITY
TPS76733
POWER SUPPLY RIPPLE REJECTION
vs
vs
FREQUENCY
FREQUENCY
90
IWI~ 4.~~1111I
80
70
VI = 4.3 V
CO=10~F
Co = 10 ~F
10=1 A
TA = 25°C
.j
10-5
,
....
" 1"1
60
TA = 25°C
10=7mA
50
I\..
40
I~
11
30
10=1 A
~
20
10
o
-10
10
100
1k
10k
100k
103
1M
f - Frequency - Hz
f - Frequency - Hz
Figure 10
Figure 11
TPS76733
OUTPUT IMPEDANCE
TPS76733
DROPOUT VOLTAGE
vs
vs
FREQUENCY
FREE-AIR TEMPERATURE
o
VI=4.3V
CO=10~F
r-II~ ~1~"m11
Cl
I
~
i.5
10=1 A
/
TA=25°C
I'
~
10-1
10= 10mA
!
I
rf
IJ ~'llU
~~
10-2 1
10
~mlll
10=1 A
IIWlL
/I
10=0
~ CO=10~F
I
1111111/
104
f - Frequency - kHz
I
10-2
-60 -40 -20
I
I
0
20 40 60 80 100 120 140
TA - Free-Air Temperature - °C
Figure 12
Figure 13
:II
TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-303
TPS76715Q,TPS76718Q,TPS76725Q,TPS76727Q
TPS76728Q,TPS76730Q TPS76733Q,TPS76750Q,TPS76701Q
FAST·TRANSIENT·RESPONSE 1·A LOW·DROPOUT VOLTAGE REGULATORS
SLVS208C - MAY 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
TPS76715
LINE TRANSIENT RESPONSE
TPS76715
LOAD TRANSIENT RESPONSE
100
>
.
I
aI
E
'Gj I
C
3.7
~
I
50
.! ~
0
o~
\
r
1-
~.§.
"
1 'I
1
CL = 100 I1F
TA=25°C
\
alGI
Cal
~
'5
a.
.5
>
-
-50
-100
0(
C =e
Gil
aI ..
i iii'
.c:
I
10
I
C
~
:::I
l
0
0
'5a.
'5
O~
I '5 -10 ~a.
.
I
r-
J
~
'5
a.
.5
801oo1~140160180~
t- Tlme-1lS
~L=~OI1FI
TPS76733
LOAD TRANSIENT RESPONSE
>
100
.5 E
&~
TA=25°C
Cal
.!~
5.3
o~
50
II
r--
0
/'
1'5
~a.
I
~ -50
"
4.3
cc
I
CL=1ooI1F
TA=25°C
-
\.
'\
.......
-100
I
~
V
C
~
:::I
0
'5
t
0
0.5
0
I
0
o
20
40
60
80 100 120 140 160 180 200
t- Time-1lS
o
~
Figure 16
60
801oo1~140160180~
t- Time-1lS
Figure 17
~TEXAS
INSTRUMENTS
2-304
40
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS76715Q,TPS76718Q,TPS76725Q,TPS76727Q
TPS76728Q,TPS76730Q TPS76733Q,TPS76750Q,TPS76701Q
FAST·TRANSIENT·RESPONSE 1·A LOW·DROPOUT
VOLTAGE REGULATORS
SLVS20BC - MAY 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
TPS76733
TPS76701
OUTPUT VOLTAGE
vs
TIME (AT STARTUP)
DROPOUT VOLTAGE
vs
INPUT VOLTAGE
4
900
3
~
2
10=1 A
.../"
800
>
I
I
CD
at
!
o
I
500
I
300
~
200
0
~=
600
~
'5
0
a.
~
>
J
\
700
E
o
\
\
"~
. '---
400
~
TA=~ ........ TA..........= 125°C
---r---
r---
TA=-40°C
100
o
o
~
~
~
~1001~1~1~1~~0
2.5
t-Tlme-I-IS
Figure 18
VI
-- ~
-r--
3
I
3.5
4
VI - Input Voltage - V
4.5
5
Figure 19
To Load
IN
---+
OUT
+
Co
ESR
LJL
-=Figure 20. Test Circuit for Typical Regions of Stability (Figures 21 through 24) (Fixed Output Options)
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-305
TPS76715Q, TPS76718Q,TPS76725Q,TPS76727Q
TPS76728Q,TPS76730Q TPS76733Q,TPS76750Q,TPS76701Q
FAST·TRANSIENT·RESPONSE 1·A LOW·DROPOUT VOLTAGE REGULATORS
SLVS208C - MAY 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
TYPICAL REGION OF STABILITY
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCEt
VB
OUTPUT CURRENT
EQUIVALENT SERIES RESISTANCEt
VB
OUTPUT CURRENT
c:
c:
I
I
II
i
·1
I
j
~
·S
Ii
Ii
I
1 - - - . Region
Stability
I
m
m
0.1
400
600
800
_ _---L_ _--'-_ _-'-_---I
200
400
600
1000
800
~_---'
o
1000
10 - Output Current - rnA
10 - Output Current - rnA
Figure 21
Figure 22
TYPICAL REGION OF STABILITY
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCEt·
EQUIVALENT SERIES RESISTANCEt
VB
OUTPUT CURRENT
VB
OUTPUT CURRENT
c:
I
i
·1
I
Ii
I
m
400
600
800
1000
0.1 0~--2....10-0--4..J,.00---600.L..---800-'-----I1000
10 - Output Current - rnA
10 - Output Current - rnA
Figure 24
Figure 23
t Equivalent series resistance (ESR) refers to the total series resistance, including the ESR of the capacitor, any series resistance added
externally, and PWB trace resistance to CO.
~TEXAS
INSTRUMENTS
2-306
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS76715Q,TPS76718Q,TPS76725Q,TPS76727Q
TPS76728Q,TPS76730Q TPS76733Q,TPS76750Q,TPS76701Q
FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT
VOLTAGE REGULATORS
SLVS208C- MAY 1999 - REVISED SEPTEMBER 1999
APPLICATION INFORMATION
The TPS767xx family includes eight fixed-output voltage regulators (1.5 V, 1.8 V, 2.5 V, 2.7 V, 2.8 V, 3.0 V,
3.3 V, and 5.0 V), and an adjustable regulator, the TPS76701 (adjustable from 1.5 V to 5.5 V).
device operation
The TPS767xx features very low quiescent current, which remains virtually constant even with varying loads.
Conventional LDO regulators use a pnp pass element, the base current of which is directly proportional to the
load current through the regulator (18 IcI~). The TPS767xx uses a PMOS transistor to pass current; because
the gate of the PMOS is voltage driven, operating current is low and invariable over the full load range.
=
Another pitfall associated with the pnp-pass element is its tendency to saturate when the device goes into
dropout. The resulting drop in ~ forces an increase in 18 to maintain the load. During power up, this translates
to large start-up currents. Systems with limited supply current may fail to start up. In battery-powered systems,
it means rapid battery discharge when the voltage decays below the minimum required for regulation. The
TPS767xx quiescent current remains low even when the regulator drops out, eliminating both problems.
The TPS767xx family also features a shutdown mode that places the output in the high-impedance state
(essentially equal to the feedback-divider resistance) and reduces quiescent current to 2!lA. If the shutdown
feature is not used, EN shOUld be tied to ground. Response to an enable transition is quick; regulated output
voltage is typically reestablished in 120 I1s.
minimum load requirements
The TPS767xx family is stable even at zero load; no minimum load is required for operation.
FB - pin connection (adjustable version only)
The FB pin is an input pin to sense the output voltage and close the loop for the adjustable option. The output
voltage is sensed through a resistor divider network to close the loop as it is shown in Figure 26. Normally, this
connection should be as short as possible; however, the connection can be made near a critical circuit to
improve performance at that point. Internally, FB connects to a high-impedance wide-bandwidth amplifier and
noise pickup feeds through to the regulator output. Routing the FB connection to minimize/avoid noise pickup
is essential.
external capacitor reqUirements
An input capacitor is not usually required; however, a ceramic bypass capacitor (0.047I1F or larger) improves
load transient response and noise rejection if the TPS767xx is located more than a few inches from the power
supply. A higher-capacitance electrolytic capaCitor may be necessary if large (hundreds of milliamps) load
transients with fast rise times are anticipated.
Like all low dropout regulators, the TPS767xx requires an output capacitor connected between OUT and GND
to stabilize the internal control loop. The minimum recommended capacitance value is 10 I1F and the ESR
(equivalent series resistance) must be between 50 mn and 1.5 n. Capacitor values 10 I1F or larger are
acceptable, provided the ESR is less than 1.5 n. Solid tantalum electrolytic, aluminum electrolytiC, and
multilayer ceramic capaCitors are all suitable, provided they meet the requirements described above. Most of
the commercially available 10 I1F surface-mount ceramic capaCitors, including devices from Sprague and
Kemet, meet the ESR requirements stated above.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 855303 • DALLAS. TEXAS 75265
2-307
TPS76715Q, TPS76718Q, TPS76725Q,TPS76727Q
TPS76728Q,TPS76730Q TPS76733Q,TPS76750Q,TPS76701Q
FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS
SLVS208C - MAY 1999 - REVISED SEPTEMBER 1999
APPLICATION INFORMATION
external capacitor requirements (continued)
. TPS767xx
6
VI
7
IN
RESET
16
IN
250kn
OUT
C1
""1 •
I
5
RESET
EN
Vo
---,I
.-
OUT
I + Co
I I10l1F I
I
I
IL _ _ _ oJI
GND
3
•
i
Figure 25. Typical Application Circuit (Fixed Versions)
programming the TPS76701 adjustable LOO regulator
The output voltage of the TPS76701 adjustable regulator is programmed using an external resistor divider as
shown in Figure 26. The output voltage is calculated using:
Vo = Vref x (1 + ~~)
(1)
Where
Vref = 1.1834 V typ (the internal reference voltage)
Resistors R1 and R2 should be chosen for approximately 50-JlA divider current. Lower value resistors can be
used but offer no inherent advantage and waste more power. Higher values shoulQ be avoided as leakage
currents at FB increase the output voltage error. The recommended design procedure is to choose
R2 = 30.1 kQ to set the divider current at 50 JlA and then calculate R1 using:
R1 =
(~o
ref
-
1) x R2
(2)
OUTPUT VOLTAGE
PROGRAMMING GUIDE
TPS76701
VI -----<11"'--1 IN
0.1 11FT
.,1.7V
EN
:S;0.9V
L-
RESET
1-----....- Reset Output
OUT I-----*--.-----<~ Vo
T
CO
FB/NC
GND
1---'" R2
OUTPUT
VOLTAGE
R1
2-308
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
UNIT
33.2
30.1
kn
3.3V
53.6
30.1
kn
3.6V
61.9
30.1
kn
4.75 V
90.8
30.1
kn
Figure 26. TPS76701 Adjustable LDO Regulator Programming
-!I1TEXAS
R2
2.5 V
TPS76715Q, TPS76718Q, TPS76725Q, TPS76727Q
TPS76728Q, TPS76730Q TPS76733Q,TPS76750Q,TPS76701Q
FAST·TRANSIENT·RESPONSE 1·A LOW·DROPOUT VOLTAGE REGULATORS
SLVS208C - MAY 1999 - REVISED SEPTEMBER 1999
APPLICATION INFORMATION
reset indicator
The TPS767xx features a RESET output that can be used to monitor the status of the regulator. The internal
comparator monitors the output voltage: when the output drops to between 92% and 98% of its nominal
regulated value, the RESET output transistor turns on, taking the signal low. The open-drain output requires
a pull up resistor. If not used, it can be left floating. RESET can be used to drive power-on reset circuitry or as
a low-battery indicator. RESET does not assert itself when the regulated output voltage falls outside the
specified 2% tolerance, but instead reports an output voltage low relative to its nominal regulated value (refer
to timing diagram for start-up sequence).
regulator protection
The TPS767xx PMOS-pass transistor has a built-in back diode that conducts reverse currents when the input
voltage drops below the output voltage (e.g., during power down). Current is conducted from the output to the
input and is not internally limited. When extended reverse voltage is anticipated, external limiting may be
appropriate.
The TPS767xx also features internal current limiting and thermal protection. During normal operation, the
TPS767xx limits output current to approximately 1.7 A. When current limiting engages, the output voltage scales
back linearly until the overcurrent condition ends. While current limiting is designed to prevent gross device
failure, care should be taken not to exceed the power dissipation ratings of the package. If the temperature of
the device exceeds 150°C(typ), thermal-protection circuitry shuts it down. Once the device has cooled below
130°C(typ), regulator operation resumes.
power dissipation and junction temperature
Specified regulator operation is assured to a junction temperature of 125°C; the maximum junction temperature
should be restricted to 125°C under normal operating conditions. This restriction limits the power dissipation
the regulator can handle in any given application. To ensure the junction temperature is within acceptable limits,
calculate the maximum allowable dissipation, PO(max), and the actual dissipation, Po, which must be less than
or equal to PO(max)'
The maximum-power-dissipation limit is determined using the following equation:
P
-
D(max) -
TJmax - TA
-=-.....-----'-'
R.aJA
Where
TJmax is the maximum allowable junction temperature
RaJA is the thermal resistance junction-to-ambient for the package, i.e., 172°C/W for the 8-terminal
SOIC and 32.6°C/W for the 20-terminal PWP with no airflow.
TA is the ambient temperature.
The regulator dissipation is calculated using:
Power dissipation resulting from quiescent current is negligible. Excessive power dissipation will trigger the
thermal protection circuit.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-309
2-310
TPS767D301, TPS767D318,TPS767D325
DUAL·OUTPUT LOW·DROPOUT VOLTAGE REGULATORS
1999 - REVISED SEPTEMBER
• Dual Output Voltages for Split-Supply
Applications
• Output Current Range of 0 mA to 1.0 A Per
Regulator
• 3.3-V/2.5-V, 3.3-V/1.8-V, and 3.3-V/Adjustable
Output
PWPPACKAGE
(TOP VIEW)
NC
NC
1GND
1EN
11N
11N
NC
NC
2GND
2EN
21N
21N
NC
NC
•
•
•
•
•
•
Fast-Transient Response
2% Tolerance Over Load and Temperature
Dropout Voltage Typically 350 mV at 1 A
Ultra Low 85 J.IA Typical Quiescent Current
1 ~ Quiescent Current During Shutdown
Dual Open Drain Power-On Reset With
200-ms Delay for Each Regulator
• 28-Pin PowerPADTM TSSOP Package
• Thermal Shutdown Protection for Each
Regulator
1RESET
NC
NC
1FB/NC
10UT
10UT
2RESET
NC
NC
NC
20UT
20UT
NC
NC
10
28
2
27
26
3
4
25
r----,
5 I
124
6
1 23
7 II
122
8 I
121
9
I
1 20
10 L _ _ _ ...l 19
11
18
12
17
16
13
14
15
NC - No internal connection
description
The TPS767D3xx family of dual voltage regulators offers fast transient response, low dropout voltages and dual
outputs in a compact package and incorporating stability with 10-I1F low ESR output capacitors.
DROPOUT VOLTAGE
vs
LOAD TRANSIENT RESPONSE
100
II
r--
103
~ I.
vo= 3.3 V
CL=lOOIlF
TA = 25°C
V-
FREE-AIR TEMPERATURE
\..
'\
10= 1 A
.........
102
>
I--"
E
I
CD
CI
101
~
cc
~
-100
:;
8.
I
~
I
:;
0.5
0
0
.e-::I
100
Q
::I
CJ
10=10mA
e
C
0
~
10-1
Vo= 3.3 V
Co= 10llF
I
.9
o
~
~
~
001001~1~1~100200
10-2
-80 -40 -20
t- TIme-1JS
•
~
10=0
I
0
~
40
60
80 100 120 140
TA - Free-Air Temperature - °C
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments Incorporated.
Thlldocumentcontolns Information on products In rnorethon ono .....
of development. Tho statUI of ...h deYlool8 Indicated on the plge(a)
apoclfylng lie a _..I.haractsrlstl...
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 752S5
Copyright © 1999, Texas Instruments Incorporated
2-311
TPS767D301,TPS767D318,TPS767D325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS209A - JUlY 1999 - REVISED SEPTEMBER 1999
description (continued)
The TPS767D3xx family of dual voltage regulators is designed primarily for DSP applications. These devices
can be used in any mixed-output voltage application, with each regulator supporting up to 1 A. Dual active-low
reset signals allow resetting of core-logic and 1/0 separately.
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 350 mV
at an output current of 1 A for the TPS767D325) and is directly proportional to the output current. Additionally,
since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent
of output loading (typically 85 ~ over the full range of output current, 0 rnA to 1 A). These two key specifications
yield a significant improvement in operating life for battery-powered systems. This LDO family also features a
sleep mode; applying a TIL high signal to EN (enable) shuts down the regulator, reducing the quiescent current
to 1 ~ at TJ 25°C.
=
The RESET output of the TPS767D3xx initiates a reset in microcomputer and microprocessor systems in the
event of an undervoltage condition. An internal comparator in the TPS767D3xx monitors the output voltage of
the regulator to detect an undervoltage condition on the regulated output voltage.
The TPS767D3xx is offered in 1.8-V, 2.5-V, and 3.3-V fixed-voltage versions and in an adjustable version
(programmable over the range of 1.5 V to 5.5 V). Output voltage tolerance is specified as a maximum of 2%
over line, load, and temperature ranges. The TPS767D3xx family is available in 28 pin PWP TSSOP package.
They operate over a junction temperature range of -40°C to 125°C.
AVAILABLE OPTIONS
TA
-40°C to 125°C
REGULATOR 1
Vo(V)
REGULATOR 2
Vo(V)
Adj (1.5 - 5.5 V)
3.3V
TPS767D301 PWP
1.8V
3.3V
TPS767D318PWP
2.5V
3.3V
TSSOP
(PWP)
TPS767D325PWP
..
The TPS767D301 IS adjustable usmg an extemal resistor diVider (see application
information). The PWP packages are available taped and reeled. Add an R suffix
to the device type (e.g., TPS767D301 PWPR).
TPS767D3xx
VI
5
6
C1
0.1 I1F
50V
IN
RESET
RESET
IN
2501<0
OUT
4
28
EN
OUT
GND
3
24
23
,. ---,
I
I +
Vo
I
I
I
L
Co
10l1F
I
I
_ _ _ oJI
Figure 1. Typical Application Circuit (Fixed Versions) for Single Channel
I~TEXAS
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POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS767D301, TPS767D318, TPS767D325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS209A - JULY 1999 - REVISED SEPTEMBER 1999
functional block diagram-fixed-voltage version (for each LDO)
IN---+-~---4--'----+~~~
' - - - - - OUT
, - - - - - RESET
FB/NC
R1
R2
GND-~'----'--_~----------_~
t Switch positions shown with EN low (active).
functional block diagram-adJustable version (for each LDO)
IN
----~~.---+---+----~----.
ENt - - - -___~
RESET
,----+---=
OUT
R1
FB/NC
R2
GND
t Switch positions shown with EN low (active).
External to the device
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POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
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TPS767D301, TPS767D318,TPS767D325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS209A - JULY 1999 - REVISED SEPTEMBER 1999
Terminal Functions
TERMINAL
NAME
110
NO.
DESCRIPTION
lGND
3
lEN
4
I
Regulator #1 enable
Regulator #1 ground
liN
5,6
I
Regulator #1 input supply voltage
2GND
9
2EN
10
I
Regulator #2 enable
21N
11,12
I
Regulator #2 input supply voltage
20UT
17,18
0
Regulator #2 output voltage
22
0
Regulator #2 reset signal
23,24
0
Regulator #1 output voHage
25
I
Regulator #1 output voltage feedback for adjustable and no connect for fixed output
28
0
2RESET
lOUT
lFBINC
1RESET
NC
Regulator #2 ground
1,2,7,8,
13-16,19,20,
21,26,27
Regulator #1 reset signal
No connection
timing diagram
VI
v
y~t--V
Vo
Threshold
Voltage
I
II
T
I
VIT+*
__________
_
-----------=t1
VIT-
I Less than 5% of the
I I output voltage
I I
I I
I I
I ~200ms
I
I Delay
U
I I
I
I I
I I
I
I I
~
Output
Undefined
t.
t Vres is the minimum input voltage for a valid RESET. The symbol Vres is not currently listed within EIA or JEDEC standards
for semiconductor symbology.
:j: VIT -Trip voltage is typically 5% lower than the output voltage (95%Vol
~TEXAS
2-314
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS767D301, TPS767D318,TPS767D325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS209A - JULY 1999 - REVISED SEPTEMBER 1999
absolute maximum ratings over operating free-air temperature (unless otherwise noted)t
Input voltage range:f:, VI .......................................................... -0.3 V to 13.5 V
Input voltage range, VI (1IN, 21N, EN) ............................... . . . . . . . . . .. -0.3 V to VI + 0.3 V
Output voltage, Vo (1OUT, 20UT) ........................................................... 7 V
Output voltage, Vo (RESET) .............................................................. 16.5 V
Peak output current ............................................................. Internally limited
ESD rating, HBM ......................................................................... 2 kV
Continuous total power dissipation ..................................... See dissipation rating tables
Operating virtual junction temperature range, TJ .................................... -40°C to 125°C
Storage temperature range, Tstg .................................................. -65°C to 150°C
t
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions· is not
Implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
=!: All voltage values are with respect to network terminal ground.
DISSIPATION RATING TABLE
PACKAGE
pwpt
t
AIRFLOW
TAS;25°C
(CFM)
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
0
3.58W
35.8mW/"C
1.97W
1.43W
250
5.07W
50.7mW/"C
2.79W
2.03W
TA = 70°C
POWER RATING
TA=85°C
POWER RATING
This parameter is measured with the recommended copper heat sink pattern on a 4-layer PCB, 1 oz. copper on 4-in x 4-in
ground layer. For more information, refer to TI technical brief literature number SLMA002.
recommended operating conditions
Input voltage, VI# (1IN, 21N)
Output current for each LDO, 10 (Note 1)
Output voltage range, Vo (10UT, 20UT)
Operating virtual junction temperature, TJ
..
MIN
MAX
2.7
10
UNIT
0
1.0
A
1.5
5.5
V
-40
125
°C
V
=
# To calculate the minimum Input voltage for your maximum output current, use the follOWing equallOn: VI(min) VO(max) + VDO(max load) .
NOTE 1: Continuous current and operating junction temperature are limited by internal protection circuitry, but it is not recommended that the
device operate under conditions beyond those specified in this table for extended periods of time.
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TPS767D301,TPS767D318,TPS767D325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS209A - JULY 1999 - REVISED SEPTEMBER 1999
electrical characteristics, Vi = VO(nom) + 1 V, 10 = 1 mA, EN = 0, Co = 10 J,1F(unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
1.5 V$Vo $5.5 V,
101JA 3.2825
I
13.2820
;e
3.2800
~
'-
I
I 1'\
1\
11.7955
~
i
cS
!\
1.7950
'\
I
~
'1\
1.7940
0.1
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
10 - Output Current - A
1
o
0.1
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
10 - Output Current - A
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
2.4960
3.32
Vo = 2.5 V
2.4955 ,... VI=3.5V
TA=25°C
V
./
2.4950
IL
3.31
V
>
I
... 2.4945
J
/
~ 2.4940
2.4935
j
V
",
>
3.30
J~
3.29
~
3.28
o
V~=3~3V
.I~
A~
V
:;
/
10= 1A
0
I
~ 3.27
3.26
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
10 - Output Current - A
1
......:
1/
~
~~
O~
~
7
iO=1 mA
/'
3.25
-60 -40 -20 0 20 40 60 80 100 120 140
TA - Free-Air Temperature - °C
Figure 5
Figure 4
~TEXAS
2-318
I
_ VI=4.3V
...I
2.4925 IV
2.4920
1
Figure 3
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
J> 2.4930
,,~
1.7945
Figure 2
!
\.
~
./
o
tl
>
10-"'"
V
o
3.2805
/
/
./
i3.2815
J> 3.281 0
1.7960
VO=1.8V
VI = 2.8V
TA=25°C
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS767D301, TPS767D318, TPS767D325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS209A - JULY 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
OUTPUT VOLTAGE
1.815
OUTPUT VOLTAGE
vs
vs
FREE-AIR TEMPERATURE
FREE-AIR TEMPERATURE
2.515
!
I
VO=1.8V
V,=2.8V
2.510
1.810
>
I
O~
1.805
f
I·
b 1.795
>'
1.790
~
10=1 A
:> 1800
........
~
......
, ~
1.785
-60 -40 -20
...-::::v
60
~/
7
2.500
~
/
12.495
c5
?
2.490
r;:
./
"
V
V
80 100 120 140
Figure 7
GROUND CURRENT
GROUND CURRENT
vs
vs
FREE-AIR TEMPERATURE
FREE-AIR TEMPERATURE
96
92
~
VO=3.3V
VI=4.3V
88
86
::I.
I
C
~
:::I
84
82
0
~
:::I
e
CJ
80
~
10=1 A
78
76
74
V
V ~=lmA
/
Figure 6
CC
~V
2.480
-60 -40 -20 0
20 40
60
80 100 120
TA - Free-Air Temperature - °C
TA - Free-Air Temperatura - °C
90
~
10=1 A
2.485
40
/
I
8.
~;::..--- 10=1 mA
20
.1.
> 2.505
!
V
0
I
VO=2.5V
VI=3.5V
~
~
~""-
~
#
~
I
C
~
:::I
0
~
:::I
e
CJ
~ ~ 10=500mA
"-
72
-80 -40 -20
0
20
40
60
80 100 120 140
.;V
88
86
/.
84
./
82
~V
80
76
I'
"- /
90
78
I~ 7'
V
/ V
.I .1
10=1 mA
92
cc::I.
10=1 mA
~
.I
VO=1.8V
VI=2.8V
94
r
r
~
II'
~
10 = 500 mA
A V-
A
~
:::::::: 10=1 A
I"
74
-60 -40 -20
TA - Free-Air Temperature - °C
FigureS
I
0
20
40
60
80 100 120 140
TA - Fraa-Air Temperature - °C
Figure 9
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TPS767D301, TPS767D318, TPS767D325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS209A - JULY 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
OUTPUT SPECTRAL NOISE DENSITY
POWER SUPPLY RIPPLE REJECTION
vs
vs
FREQUENCY
FREQUENCY
90
I ~~I=
80
l!>:
VI=4.3V
CO= 1O I!F
10=1 A
TA = 25°C
,j
70
"'- 1'1
60
10-0
~.~ ~III
!
50
J~
30
i
i
en
20
10
10=7mA
""
10-6
I
r\..
40
....
I
f
VI=4.3V
CO= 10l!F
TA = 25°C
10=1 A
~
10-7
I
o
-10
10
-:f'
100
1k
10k
100k
f - Frequency - Hz
Figure 10
Figure 11
DROPOUT VOLTAGE
OUTPUT IMPEDANCE
vs
vs
FREQUENCY
FREE-AIR TEMPERATURE
o
103
VI =4.3V
CO= 1O I!F
TA=25°C
I
.5
./
10=1 A
f-11~~I~lm11.
c:;
I
104
103
1M
f - Frequency - Hz
-"
I
10-1
/
~
10=10mA
i
I
r!I
~
Vtl
10=1 A
1111
VO=3.3V
CO= 1O I!F
111111111111
105
102
106
10-2
-60 -40 -20
f - Frequency - kHz
0
20
40
60
60 100 120 140
TA - Free-Air Temperature - °C
Figure 12
Figure 13
~TEXAS
2~20
10=0
INSTRUMENTS
POST OFFICE 90X 655303 • DALLAS. TEXAS 75265
TPS767D301,TPS767D318,TPS767D325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS209A - JULY 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
LINE TRANSIENT RESPONSE
LOAD TRANSIENT RESPONSE
100
>
.5 E
3.8
GI 1
DlGI
CDI
.!
;e
!~
o~
5a.
S
1
~
>
1
GI
aI
50
0
1-
?s.
<15
2.8
>"
VO=1.8V
IL=10mA
CL = 10 I1F
TA = 25°C
\-
I('
VO=1.8V
VI =2.8V
_
CL=l00I1F
TA = 25°C
~
-SO
0
-100
C
1
C
§
•
IlL
,
0
0.5
5
t
0
0
1
o
.2
~
~
~
o
~1001~1~1~1~~0
~
~
~
t- Time-lIS
Figure 14
Figure 15
LINE TRANSIENT RESPONSE
V~=3~3V'1
>
1
&
-
~
~
5a.
>
~~ = ~~3 V
E
50
o~
0
15
?a.
<1
>"
100
i~
Cal
!~
5.3
1
C -100
10
c
I
.~
r- CL =100 I1F
'\
-
TA = 25°C
/"
~ -50
4.3
I'...
1
>
0
? j.
-10
~
~
~&
!~
()~
1-
LOAD TRANSIENT RESPONSE
C
CL= lO I1F
TA = 25°C
S
-; 7
001001~1~1~1~200
t -Time-lIS
V
=
~
!
0.5
o
1
<1=
o
.2
o
~
~
~
~1001~1~1~1~~0
o
~
t- Time-lIS
~
~
~
l00l~l~l~l00~O
t- Time-lIS
Figure 16
Figure 17
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POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
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TPS767D301, TPS767D318, TPS767D325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS209A - JULY 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
OUTPUT VOLTAGE
vs
TIME (AT STARTUP)
4
>
I
j
3
~
J~
~
2
v
(
DROPOUT VOLTAGE
vs
INPUT VOLTAGE
900
-
IO=1A
800
>
I
CD
1:11
600
~
500
8.
400
!
o
'--
:;
e
>
Q
I
300
j
$
200
I
i.
I
\
\
\ ~~
700
E
o
"'-..
o
~
40
60
60 1001~140160160200
t-T1me-1J.S
2.5
Figure 18
VI
--
~
-
I""--
TA=-40°C
100
o
-------... --r-TA~~ r-..... TA=125°C
3
I
3.5
4
VI - Input Voltage - V
4.5
5
Figure 19
To Load
IN
~
OUT
+
Co
ESR
L5L
-=Figure 20. Test Circuit for Typical Regions of Stability (Figures 21 through 24) (fixed output options)
~TEXAS
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TPS767D301, TPS767D318, TPS767D325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS209A - JULY 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
TYPICAL REGION OF STABILITY
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCEt
EQUIVALENT SERIES RESISTANCEt
vs
vs
OUTPUT CURRENT
OUTPUT CURRENT
10
Cl
I
8c
i
I..
'E
~:::I
M
I
II:
Ul
W
Vo=
CL=4.7IiF
VI=4.3V
TA=
0.1
0
200
400
BOO
600
1000
10 - Output Current - rnA
10 - Output Current - rnA
Figure 21
Figure 22
TYPICAL REGION OF STABILITY
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCEt
EQUIVALENT SERIES RESISTANCEt
vs
vs
OUTPUT CURRENT
OUTPUT CURRENT
10
Cl
Cl
I
I
8c
8
c
i
s
!'"
'i'"
..
II
II:
j
II
'E
'E
.!!
~::I
~
I
M
.~
::I
CT
W
I
II:
Ul
II:
w
0.1
ffi
VO=3.3V
CL=22IiF
VI=4.3V
TA=
0
200
400
800
600
1000
Vo=
CI=22IiF
VI = 4.3V
TJ = 125°C
0.1
0
10 - Output Current - rnA
200
400
600
BOO
1000
10 - Output Current - rnA
Figure 24
Figure 23
t Equivalent series resistance (ESR) refers to the total series resistance, including the ESR of the capacitor, any series resistance added
externally, and PWB trace resistance to CO.
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DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS209A - JULY 1999 - REVISED SEPTEMBER 1999
APPLICATION INFORMATION
The features of the TPS767D3xx family (low-dropout voltage, ultra-low quiescent current, power-saving shutdown
mode, and a supply-voltage supervisor) and the power-dissipation properties of the TSSOP PowerPAD package
have enabled the integration of the dual LDO regulator with high output current for use in DSP and other multiple
voltage applications. Figure 25 shows a typical dual-voltage DSP application.
R2
100kO
R1
100kO
U1
TPS7670325
-
1
2
3
4
5V
5
CO
1 ~!l.
T
6
-
7
8
9
10
11
12
13
14
-
-=-
NC
t--
1 RESET
.2!...
NC
11N
10UT
NC
2RESET
VC549
OSP
2.5 V
22
NC ~
2GNO
NC ~
21N
RESET to OSP
231
NC
21N
PG
1FB/NC ~
24
10UT
11N
2EN
:r
-
NC
NC ~
1GND
1EN
28
01
20UT
~~
C3
+
;::::; ~
3311F
NC ~
20UT ~
~
c
17
NC
NC ~
NC
NC ~
~~
03
OL5817
02
.n.
;:::::: C1
111F
;:1'"
GNO
CVOO
(Core
Supply)
3.3 V
OVOO
(I/O Supply)
C2
3311F
J.
GNO
Figure 25. Dual-Voltage DSP Application
DSP power requirements include very high transient currents that must be considered in the initial design. This design
uses higher-valued output capacitors to handle the large transient currents.
device operation
The TPS767D3xx features very low quiescent current, which remain virtually constant even with varying loads.
Conventional LDO regulators use a pnp pass element, the base current of which is directly proportional to the
load current through the regulator (18 Icll3). Close examination of the data sheets reveals that these devices
are typically specified under near no-load conditions; actual operating currents are much higher as evidenced
by typical quiescent current versus load current curves. The TPS767D3xx uses a PMOS transistor to pass
current; because the gate of the PMOS is voltage driven, operating current is low and invariable over the full
load range. The TPS767D3xx specifications reflect actual performance under load condition.
=
~TEXAS
INSTRUMENTS
2--324
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS767D301,TPS767D318,TPS767D325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS209A - JULY 1999 - REVISED SEPTEMBER 1999
Another pitfall associated with the pnp-pass element is its tendency to saturate when the device goes into
dropout. The resulting drop in /3 forces an increase in 18 to maintain the load. During power up, this translates
to large start-up currents. Systems with limited supply current may fail to start up. In battery-powered systems,
it means rapid battery discharge when the voltage decays below the minimum required for regulation. The
TPS767D3xx quiescent current remains low even when the regulator drops out, eliminating both problems.
The TPS767D3xx family also features a shutdown mode that places the output in the high-impedance state
(essentially equal to the feedback-divider reSistance) and reduces quiescent current to under 2 !.IA. If the
shutdown feature is not used, EN should be tied to ground. Response to an enable transition is quick; regulated
output voltage is typically reestablished in 120 ~.
minimum load requirements
The TPS767D3xx family is stable even at zero load; no minimum load is required for operation.
FB - pin connection (adjustable version only)
The FB pin is an input pin to sense the output voltage and close the loop for the adjustable option. The output
voltage is sensed through a resistor divider network as is shown in Figure 27 to close the loop. Normally, this
connection should be as short as possible; however, the connection can be made near a critical circuit to
improve performance at that point. Internally, FB connects to a high-impedance wide-bandwidth amplifier and
noise pickup feeds through to the regulator output. Routing the FB connection to minimize/avoid noise pickup
is. essential. In fixed output options this pin is a no connect.
external capacitor requirements
An input capacitor is not required; however, a ceramic bypass capacitor (0.047 pF to 0.1 J.LF) improves load
transient response and noise rejection when the TPS767D3xx Is located more than a few Inches from the power
supply. A higher-capacitance electrolytic capacitor may be necessary if large (hundreds of milliamps) load
transients with fast rise times are antiCipated.
Like all low dropout regulators, the TPS767D3xx requires an output capaCitor connected between OUT and
GND to stabilize the internal control loop. The minimum recommended capacitance value is 10 J.LF and the ESR
(equivalent series resistance) must be between 50 mO and 1.5 O. Capacitor values 10 J.LF or larger are
acceptable, provided the ESR is less than 1.5 n. Solid tantalum electrolytic, aluminum electrolytic, and
multilayer ceramic capacitors are all suitable, provided they meet the requirements described previously.
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TPS767D301,TPS767D318,TPS767D325
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
SLVS209A - JULY 1999 - REVISED SEPTEMBER 1999
external capacitor requirements (continued)
When necessary to achieve low height requirements along with high output current and/or high ceramic load
capacitance,'several higher ESR capacitors can be used in parallel to meet the previous· guidelines.
TPS767D3xx
6
C1
'5tVF
01
T
250kQ
IN
OUTt-=...---<............ vo
4
EN
GND
3
II"
---.,
II .
+
COl
IL
J10 F
II
~I~.~__~.~_____L~_ _ _ ~
Figure 26. Typical Application Circuit (Fixed Versions) for Single Channel
programming the TPS7670301 adjustable LOO regulator
The output voltage of the TPS767D301 adjustable regulator is programmed using an external resistor divider
as shown in Figure 27. The output voltage is calculated usin~:
(1 )
where
Vref = 1.1834 V typ (the internal reference voltage)
Resistors R1 and R2 should be chosen for approximately 50-1JA divider current. Lower value resistors can be
used but offer no inherent advantage and waste more power. Higher values should be avoided as leakage
currents at FB increase the output voltage error. The recommended design procedure is to choose
R2 =30.1 kn to set the divider current at 50 IJA and then calculate R1 using:
R1 = (V0 _ 1) x R2
V ref
(2)
OUTPUT VOLTAGE
PROGRAMMING GUIDE
TPS767D301
VI
>2.7 V
--_--I
IN
RESET
O.11J.F '±'
-
L-
- - - I EN
100
'I
.5 E
&~
10=1 A
r---
50
CL~ 10'~F
TA=25°C
CD)
.!~
(J~
,-
=e
I
0
V
~s.
J
101
Ie
100
10-1
1~0
T
I
!
10=0
I- CO= 1O I1F
0
o
I
o
I
-40 -20
0.5
20
40
60
80 100 120 140
o
20
TA - Free·Alr Temperature - °C
. ';:':l:'.!n:::
~~~CTI':':':1: =~:
!=:\"r::mC:~
standard "a"'lnty. Production pro....,ng do.. nat ne.....rlty Include
IIIsIIng of aU parametera,
~TEXAS
40
60
80 100 120 140 160 180 200
t-Tlme-l1s
Copyright © 1999. Texas Instruments Incorporated
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-329
TPS76815Q,TPS76818Q,TPS76825Q,TPS76827Q
TPS76828Q, TPS76830Q TPS76833Q, TPS76850Q, TPS76801 Q
FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS
SLVS211B-JUNE 1999- REVISED JULY 1999
description (continued)
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 230 mV
at an output current of 1 A for the TPS76850) and is directly proportional to the output current. Additionally, since
the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output
loading (typically 85 ~ over the full range of output current, 0 mA to 1 A). These two key specifications yield
a significant improvement in operatin[,!!!e for battery-powered systems. This LDO family also features a sleep
mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the quiescent current to
less than 1 ~ at TJ = 25°C.
Power good (PG) is an active high output, which can be used to implement a power-on reset or a low-battery
indicator.
The TPS768xx is offered in 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V, 3.0-V, 3.3-V and 5.0-V fixed-voltage versions and
in an adjustable version (programmable over the range of 1.2 V to 5.5 V). Output voltage tolerance is specified
as a maximum of 2% over line, load, and temperature ranges. The TPS76Sxx family is available in 8 pin sOle
and 20 pin PWP packages.
AVAILABLE OPTIONS
OUTPUT
VOLTAGE
TJ
PACKAGED DEVICES
(V)
TSSSOP
(PWP)
TYP
-40°C to 125°C
SOIC
(D)
5.0
TPS76850Q
TPS76850Q
3.3
TPS76833Q
TPS76833Q
3.0
TPS76830Q
TPS76830Q
2.8
TPS76828Q
TPS76828Q
2.7
TPS76827Q
TPS76827Q
2.5
TPS76825Q
TPS76825Q
1.8
TPS76818Q
TPS76818Q
1.5
TPS76815Q
TPS76815Q
Adjustable
1.2 Vto 5.5 V
TPS76801Q
TPS76801Q
..
The TPS76801 IS programmable uSing an external resistor diVider (see application
information). The D and PWP packages are available taped and reeled. Add an R
suffix to the device type (e.g., TPS76801QDR).
TPS768xx
6
IN
PG
16
PG
7
IN
OUT
O.1I1F
5
EN
OUT
GND
Vo
---,I
+
cot
I
_1Ol1F
_ _ .J
3
t See application information section for capacitor selection details.
Figure 1. Typical Application Configuration (For Fixed Output Options)
2-330
-!!1
TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS76815Q,TPS76818Q,TPS76825Q, TPS76827Q
TPS76828Q, TPS76830Q TPS76833Q, TPS76850Q, TPS76801 Q
FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS
SLVS211 B - JUNE 1999 - REVISED JULY 1999
functional block diagram-adjustable version
IN
----+-+-----1_____--+-_._----,
EN - - -___~
, - - - t - - - PG
OUT
R1
FB/NC
R2
GND
External to the device
functional block dlagram-fixed-voltage version
IN
----+-+-----1_____--+-_._----,
EN - - -___---+I
,------11----- PG
f---e-
OUT
R1
R2
GND
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-331
TPS7681SQ,TPS76818Q,TPS7682SQ,TPS76827Q
TPS76828Q, TPS76830Q TPS76833Q, TPS768S0Q, TPS76801 Q
FAST·TRANSIENT·RESPONSE 1·A LOW·DROPOUT VOLTAGE REGULATORS
SLVS211B-JUNE 1999-REVISEDJULY 1999
Terminal Functions - sOle Package
TERMINAL
NAME
NO.
1/0
DESCRIPTION
GND
1
EN
2
I
Enable input
IN
3
I
Input voltage
Input voltage
Regulator ground
IN
4
I
OUT
5
OUT
6
0
0
FBINC
7
I
PG
8
0
Regulated output voltage
Regulated output voltage
Feedback input voltage for adjustable device (no connect for fixed options)
PGoutput
Terminal Functions - PWP Package
TERMINAL
NAME
NO.
110
DESCRIPTION
GND/HSINK
1
Groundlheatsink
GND/HSINK
2
Groundlheatsink
GND
3
LDOground
Ne
EN
4
5
I
Enable input
IN
6
I
Input
IN
7
I
Input
NC
8
No connect
GND/HSINK
Groundlheatsink
GND/HSINK
9
10
GNDIHSINK
11
Groundlheatsink
GND/HSINK
Groundlheatsink
0
0
Regulated output voltage
FBINC
12
13
14
15
I
Feedback input voltage for adjustable device (no connect for fixed options)
PG
16
0
NC
17
No connect
NC
18
No connect
GNDIHSINK
19
20
Groundlheatsink
OUT
OUT
GND/HSINK
No connect
Groundlheatsink
Regulated output voltage
PG output
Groundlheatsink
~TEXAS
2-332
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS76815Q,TPS76818Q,TPS76825Q,TPS76827Q
TPS76828Q, TPS76830Q TPS76833Q, TPS76850Q, TPS76801 Q
FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS
SLVS211B-JUNE 1999- REVISED JULY 1999
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)t
Input voltage range:!:, VI .......................................................... -0.3 V to 13.5 V
Voltage range at EN .......................................................... -0.3 V to VI + 0.3 V
Maximum PG voltage ..................................................................... 16.5 V
Peak output current ............................................................. Internally limited
Continuous total power dissipation ..................................... See dissipation rating tables
Output voltage, Va (OUT, FB) ............................................................... 7 V
Operating virtual junction temperature range, TJ .................................... -40°C to 125°C
Storage temperature range, Tstg .................................................. -65°C to 150°C
ESD rating, HBM ......................................................................... 2 kV
t
Stresses beyond those listed under"absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions' is not
implied. Exposure to absolute·maximum-rated conditions for extended periods may affect device reliability.
:I: All voltage values are with respect to network terminal ground.
DISSIPATION RATING TABLE 1 - FREE·AIR TEMPERATURES
PACKAGE
D
TA = 70°C
POWER RATING
TA = 85°C
POWER RATING
5.6818mW/"C
312.5mW
227.27mW
9.0415 mW/oC
497.28mW
361.66mW
AIRFLOW
(CFM)
TA < 25°C
POWER RATING
DERATING FACTOR
ABOVE TA 25°C
o
568.18mW
250
904.15mW
=
DISSIPATION RATING TABLE 2 - FREE·AIR TEMPERATURES
PACKAGE
PWP#
PWPII
AIRFLOW
(CFM)
TA < 25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
TA",70°C
POWER RATING
TA = 85°C
POWER RATING
0
2.9W
23.5mW/"C
1.9W
1.5W
300
4.3W
34.6mW/oC
2.8W
2.2W
0
3W
23.8mW/oC
1.9W
1.5W·
300
7.2W
57.9mW/oC
4.6W
3.8W
# This parameter IS measured with the recommended copper heat sink pattern on a I-layer PCB, 5-ln x 5-ln PCB, 1 oz. copper,
2-in x 2-in coverage (4 in2 ).
II This parameter is measured with the recommended copper heat sink pattern on a 8-layer PCB, 1.5-in x 2-in PCB, 1 oz. copper
with layers 1, 2, 4, 5, 7, and 8 at 5% coverage (0.9 in 2) and layers 3 and 6 at 100% coverage (6 in2). For more information, refer
to TI technical brief SLMA002.
recommended operating conditions
MIN
MAX
Input voltage, VI''''
2.7
10
V
Output voltage range, Vo
1.2
5.5
V
0
1.0
A
-40
125
°C
Output current, 10 (Note 1)
Operating virtual junction temperature, TJ (Note 1)
UNIT
..
* To calculate the minimum
mput voltage for your maximum output current, use the follOWing equation: V, (min) = VO(max) + VDO(max load).
NOTE 1: Continuous current and operating junction temperature are limited by internal protection circuitry, but it is not recommended that the
device operate under conditions beyond those specified in this table for. extended periods of time.
="lExAs
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-333
TPS7681SQ,TPS76818Q,TPS7682SQ,TPS76827Q
TPS76828Q, TPS76830Q TPS76833Q, TPS76850Q, TPS76801 Q
FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS
SLVS211 B - JUNE 1999 - REVISED JULY 1999
electrical characteristics over recommended operating free-air temperature
Vi VO(typ) + 1 V,IO 1 mA, EN 0 V, Co 10 ~F (unless otherwise noted)
=
=
=
PARAMETER
TEST CONDITIONS
TPS76801
TPS76815
TPS76818
TPS76825
Output voltage
(10 /1A to 1 A load)
(see Note 2)
TPS76827
TPS76828
TPS76830
TPS76833
TPS76850
Quiescent current (GND current)
EN = OV. (see Note 2)
Output voltage line regulation (/!NaNO)
(see Notes 2 and 3)
5.5 V;:,Vo;:, 1.2V.
5.5 V;:, Vo;:' 1.2 V.
TJ = -40°C to 125°C
TJ = 25°C.
2.7 V < VIN < 10 V
TJ = -40°C to 125°C. 2.7 V < VIN < 10 V
TJ = 25°C.
3.5 V < VIN < 10 V
TJ = 25°C.
3.7V 3.2825
1
i
3.2820
"1
3.2815
~
~
:b 3.2810
3.2805
3.2800
/
/
V
V
---
,..... . /
1.4980
/'
V
> 1.4975
1
ell
/
E 1.4970
~
:;
!
V
/
1.4965
,-J
1.4955
1.4950
0.1
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
10 - Output Current - A
1
V
o
0.1
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
10 - Output Current - A
TPS76825
TPS76833
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
1
TA=25O~
~
I
.I~
3.31
V
2.4945
~
./
~ 2.4940
"1
>
:b 2.4930
2.4925 u
o
t
/
3.30
1
ell
J
/
~
:;
V'"
~ 2.4935
!
3.29
10=1A ~
3.28
0
V
1
~ 3.27
3.26
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
10 - Output Current - A
1
/. f
~~
~
~
A~
V
10=1mA
/'
1<"
3.25
-60 -40 -20
Figure 4
0 20 40 60 80 100 120 140
TA - Free-Air Temperature - °C
Figure 5
~TEXAS
2-336
I
VI =4.3V
./
2.4950
>
2.4920
3.32
_1_
vl=3.5V
2.4955
1
Figure 3
2.4960
1
/'
V
Figure 2
8.
---
/
V
J
:b 1.4960
~
o
VI=2.7V
TA = 25°C
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS7681SQ,TPS76818Q,TPS7682SQ,TPS76827Q
TPS76828Q, TPS76830Q TPS76833Q, TPS76850Q, TPS76801 Q
FAST·TRANSIENT·RESPONSE 1·A LOW·DROPOUT VOLTAGE REGULATORS
SLVS211B-JUNE 1999- REVISED JULY 1999
TYPICAL CHARACTERISTICS
TPS76815
OUTPUT VOLTAGE
1.515
TPS76825
OUTPUT VOLTAGE
vs
vs
FREE-AIR TEMPERATURE
FREE-AIR TEMPERATURE
2.515
.!
I
1
/
2.510
V"
/
> 2.505
~
8.
1.510
i
/
>
1.505
~
'5 1.500
!b
10=1~
/./
1.495
'"
. /~
:>
.,/
1.490
~
-40 -20
/~V
!
;j /
2.500
~
V ...
~/
10=1 A
/
12.495
d
10=1 mA
J> 2.490
/'
,.,t:::
./
2.485
0
20
40
60
~V.
V
V
~
-40 -20
0
vs
,9
86
84
CI
78
0
e
10=lA ~
76
74
~
~
~""-
~
100
~
I
C
"a
e
40
60
85
CI
I
VI-'
./
80
72
20
/~
0
10=lmA
80 100 120 140
/lo=lA
10=1 mA
90
§
,
0
V
cc::I.
~
~V
-60 -40 -20
/
95
c
~ ~ 10=500mA
l
I
VI =2.7V
::J
I'-
100 120
TPS76815
GROUND CURRENT
FREE-AIR TEMPERATURE
88
80
80
vs
VI=4.3V
11::J
60
FREE-AIR TEMPERATURE
90
82
40
Figure 7
92
::J
20
TA - Free-Air Temperature - °C
TPS76833
GROUND CURRENT
C
~
/
10=1 mA
Figure 6
I
~
2.480
80 100 120 140
TA - Free-Air Temperature - °C
cc::I.
/
I
./
1.485
.1.
VI=3.5V
VI=2.7V
". ~
75
/
-60 -40 -20
TA - Free-Air Temperature - °C
FigureS
,;'
0
V
20
V-
V
40
....../
60
V~
10=500mA
80 100 120 140
TA - Free-Air Temperatura - °C
Figure 9
~1ExAs
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-337
TPS76815Q,TPS76818Q,TPS76825Q,TPS76827Q
TPS76828Q, TPS76830Q TPS76833Q, TPS76850Q, TPS76801 Q
FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS
SLVS211 B - JUNE 1999 - REVISED JULY 1999
TYPICAL CHARACTERISTICS
TPS76833
OUTPUT SPECTRAL NOISE DENSITY
TPS76833
POWER SUPPLY RIPPLE REJECTION
vs
vs
FREQUENCY
FREQUENCY
90
ID
"CI
I
c
t
Gi'
II:
i
icil
J
I
II!
If
10-5
1~."~4.~VIIII
SO
Co= 1O I1F
10=1 A
TA=25°C
••
70
--
I'\..
60
VI=4.3V
CO= 1O I1F
TA=25°C
'"
50
'-
40
il
IA.~
30
10=7mA
10=1 A
~
20
10
o
-10
10
100
1k
10k
100k
103
1M
f - Frequency - Hz
f - Frequency - Hz
Figure 10
Figure 11
TPS76833
OUTPUT IMPEDANCE
TPS76833
DROPOUT VOLTAGE
vs
vs
FREQUENCY
FREE-AIR TEMPERATURE
o
VI=4.3V
CO= 1O I1F
TA=25°C
I
.E
10=1 A
f-I I~ ~ I~I mil
c:
t
/
>
E
I
I"
t
~
J
10-1
I
t
101
iE!
100
~
Q
10=10mA
I
o
I
,.f
~
10-2 1
10
V
~
10=1 A
10-1
111111
,I
10-2
-60 -40 -20
103
f - Frequency - kHz
I
0
20
40
60
I
SO 100 120 140
TA - Free-Air Temperature - °C
Figure 12
Figure 13
~TEXAS
2-338
10=0
CO= 1O I1F
II
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS76815Q,TPS76818Q,TPS76825Q,TPS76827Q
TPS76828Q, TPS76830Q TPS76833Q, TPS76850Q, TPS76801 Q
FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS
SLVS211B-JUNE 1999-REVISEDJULY 1999
TYPICAL CHARACTERISTICS
TPS76815
TPS76815
LINE TRANSIENT RESPONSE
LOAD TRANSIENT RESPONSE
100
>
>
.5 E
I
j
3.7
GIl
alGI
11
o~
~
'1
.5
I
50
0
\
V
1-
::5's.
2.7
II
'I
CL= 10!1F
TA=25°C
\
-
0
-100
,
.5 ~ 10
&~
C al
cc
0
~i
I 'S -10
~to
I
C
i
1
0.5
0
'S
-
!
CL=10~
o
0
0
TA=25°C
I
.9
~
@
~
o
~1001~1@1~1~~0
~
~
@
t- Tlme-118
Figure 14
I
j
~
'S
1:1.
1001~1~1~1~~0
Figure 15
TPS76833
TPS76833
LINE TRANSIENT RESPONSE
LOAD TRANSIENT RESPONSE
6L='~0 !1~1
>
~
t-Tlme-!1s
C
' - TA=25°C
100
>E
'I
i~
Cal
50 -
o~
0
C~~10~
TA=25°C
,!J!
5.3
;/
I'S
.5
::5'1:1.
I
4.3
cc
-
1\
"
I'-...
-100
I
c
~
~
V
G
_
I
0.5
o
I
.9
o
~
@
~
~1001~1@1~1~~0
o
~
t- Tlme-118
Figure 16
@
~
00 1001~1~1~100200
t- Tlme-118
Figure 17
~1EXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS, TEXAS 75265
2-339
TPS76815Q,TPS76818Q,TPS76825Q,TPS76827Q
TPS76828Q,TPS76830QTPS76833Q,TPS76850Q,TPS76801Q
FAST·TRANSIENT·RESPONSE 1·A LOW·DROPOUT VOLTAGE REGULATORS
SLVS211B - JUNE 1999 - REVISED JULY 1999
TYPICAL CHARACTERISTICS
TPS76833
TPS76801
OUTPUT VOLTAGE
DROPOUT VOLTAGE
vs
,
>
vs
TIME (AT STARTUP)
INPUT VOLTAGE
4
900
10=1 A
I
GI
~
5Co
3
~
2
,
>
\
700
E
(
d
~
v
800
~
I
0
GI
600
~
500
8.
400
I
300
$
200
\
a
I
~
:I
Do
"' ~
"-
125°C
TA~~ !"--.... TA=
-...
5
>
\
. ~ -.....1--.. .
r--- r--TA=-40°C
I
100
III
C
~
----
-
W
0
0
20
40
60
80 100 120 140 160 180 200
t- Time-lIS
2.5
3.5
4
VI-Input Voltage - V
4.5
5
Figure 19
Figure 18
VI
3
To Load
IN
~
OUT
+
Co
RL
ESR
LJL
-::-
Figure 20. Test Circuit for Typical Regions of Stability (Figures 21 through 24) (Fixed Output Options)
t Equivalent series resistance (ESR) refers to the total series resistance, including the ESR of the capacitor, any series resistance added
extemally, and PWB trace resistance to CO.
~TEXAS
2-340
INSTRUMENTS
POST OFFICE SOX 655303 • DALLAS. TEXAS 75265
TPS76815Q, TPS76818Q,TPS76825Q,TPS76827Q
TPS76828Q,TPS76830QTPS76833Q,TPS76850Q,TPS76801Q
FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS
SLVS211B-JUNE 1999- REVISED JULY 1999
TYPICAL CHARACTERISTICS
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCEt
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCEt
vs
vs
OUTPUT CURRENT
OUTPUT CURRENT
Cl
I
g
i
.!!
:I
i
:::I
{if
1----. Region
I
Ill:
ffi
Vo =3.3V
CL 4.7 J,LF
VI =4.3V
TA=25°C
Stability
=
0.1 ' - - - - - ' - - - - ' - - -........- - - ' - - - - - - '
o
200
400
600
800
1000
0.10'-..;;.;...-2....0-0--40
....0---6.1...00--8.....00--.......
1000
10 - Output Current - mA
10 - Output Current - mA
Figure 21
Figure 22
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCEt
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCEt
vs
vs
OUTPUT CURRENT
OUTPUT CURRENT
Cl
I
Cl
i
I
i
ic
••C
III
I
{if
I
I
{if
!Ii
I
:::I
:::I
!Ii
400
800
600
1000
0.1 0' - - - 2....00---40
....0---60....0--80-'-0--1.......
000
10 - Output Current - mA
10 - Output Current - mA
Figure 23
Figure 24
t Equivalent series resistance (ESR) refers to the total series resistance, including the ESR of the capacitor, any series resistance added
externally, and PWB trace resistance to CO.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-341
TPS76815Q,TPS76818Q,TPS76825Q,TPS76827Q
TPS76828Q, TPS76830Q TPS76833Q, TPS76850Q, TPS76801 Q
FAST·TRANSIENT·RESPONSE 1·A LOW·DROPOUT VOLTAGE REGULATORS
SLVS211B-JUNE 1999- REVISED JULY 1999
APPLICATION INFORMATION
The TPS768xx family includes eight fixed-output voltage regulators (1.5 V, 1.8 V, 2.5 V, 2.7 V, 2.8 V, 3.0 V,
3.3 V, and 5.0 V), and offers an adjustable device, the TPS76801 (adjustable from 1.2 V to 5.5 V).
device operation
The TPS768xx features very low quiescent current, which remains virtually constant even with varying loads.
Conventional LDO regulators use a pnp pass element, the base current of which is directly proportional to the
load current through the regulator (16 = Icll3). The TPS768xx uses a PMOS transistor to pass current; because
the gate of the PMOS is voltage driven, operating current is low and invariable over the full load range.
Another pitfall associated with the pnp-pass element is its tendency to saturate when the device goes into
dropout. The resulting drop in 13 forces an increase in 16 to maintain the load. During power up, this translates
to large start-up currents. Systems with limited supply current may fail to start up. In battery-powered systems,
it means rapid battery discharge when the voltage decays below the minimum required for regulation. The
TPS768xx quiescent current remains low even when the regulator drops out, eliminating both problems.
The TPS768xx family also features a shutdown mode that places the output in the high-impedance state
(essentially equal to the feedback-divider resistance) and reduces quiescent current to 21JA. If the shutdown
feature is not used, EN should be tied to ground. Response to an enable transition is quick; regulated output
voltage is reestablished in typically 120 IJ.S.
minimum load requirements
The TPS768xx family is stable even at zero load; no minimum load is required for operation.
FB • pin connection (adjustable version only)
The FB pin is an input pin to sense the output voltage and close the loop for the adjustable option. The output
voltage is sensed through a resistor divider network to close the loop as it is shown in Figure 26. Normally, this
connection should be as short as possible; however, the connection can be made near a critical circuit to
improve performance at that point. Internally, FB connects to a high-impedance wide-bandwidth amplifier and
noise pickup feeds through to the regulator output. Routing the FB connection to minimize/avoid noise pickup
is essential.
external capaCitor requirements
An input capacitor is not usually required; however, a ceramic bypass capacitor (0.047 J.1F or larger) improves
. load transient response and noise rejection if the TPS768xx is located more than a few inches from the power
supply. A higher-capacitance electrolytic capacitor may be necessary if large (hundreds of milliamps) load
transients with fast rise times are anticipated.
Like all low dropout regulators, the TPS768xx requires an output capacitor connected between OUT and GND
to stabilize the internal control loop. The minimum recommended capacitance value is 10 J.1F and the ESR
(equivalent series resistance) must be between 50 mil and 1.5 il. Capacitor values 10 J.1F or larger are
acceptable, provided the ESR is less than 1.5 n. Solid tantalum electrolytic, aluminum electrolytiC, and
multilayer ceramic capaCitors are all suitable, provided they meet the requirements described above. Most of
the commercially available 10 J.1F surface-mount ceramic capaCitors, including devices from Sprague and
Kemet, meet the ESR requirements stated above.
~TEXAS
INSTRUMENTS
2-342
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS76815Q,TPS76818Q, TPS76825Q, TPS76827Q
TPS76828Q, TPS76830Q TPS76833Q, TPS76850Q, TPS76801 Q
FAST·TRANSIENT·RESPONSE 1·A LOW·DROPOUT VOLTAGE REGULATORS
SLVS211 B - JUNE 1999 - REVISED JULY 1999
APPLICATION INFORMATION
external capacitor requirements (continued)
TPS768xx
6
VI
7
IN
PG
5
PG
250 k.Q
IN
OUT
Cl
0.1 !iF
16
EN
OUT
14
13
Vo
---.,
+
I
Co
10!iF
I
I
I
---..I
Figure 25. Typical Application Circuit (Fixed Versions)
programming the TPS76801 adjustable LOO regulator
The output voltage of the TPS76801 adjustable regulator is programmed using an external resistor divider as
shown in Figure 26. The output voltage is calculated using:
Vo=Vrefx(1+=~)
(1)
Where
Vref = 1.1834 V typ (the internal reference voltage)
Resistors R1 and R2 should be chosen for approximately 50-~ divider current. Lower value resistors can be
used but offer no inherent advantage and waste more power. Higher values should be avoided as leakage
currents at FB increase the output voltage error. The recommended design procedure is to choose
R2 =30.1 kn to set the divider current at 50 ~ and then calculate R1 using:
R1 =
(~ref0 -
1) x R2
(2)
OUTPUT VOLTAGE
PROGRAMMING GUIDE
TPS76801
VI
----...----1
0.1 !iF "±'
IN
~
---lEN
:s;0.9V
OUTPUT
VOLTAGE
PG t---+t.-
2:1.7V
OUT
FB I NC
GND
I
I----...----<~
1---'"
R2
Vo
Rl
R2
UNIT
2.SV
33.2
30.1
k.Q
3.3V
53.6
30.1
k.Q
3.6V
61.9
30.1
4.7SV
90.8
30.1
kn
kn
Figure 26. TPS76801 Adjustable LDO Regulator Programming
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-343
TPS76815Q,TPS76818Q,TPS76825Q,TPS76827Q
TPS76828Q, TPS76830Q TPS76833Q, TPS76850Q, TPS76801 Q
FAST·TRANSIENT·RESPONSE 1·A LOW·DROPOUT VOLTAGE REGULATORS
SLVS211B-iUNE 1999-REVISEDJULY 1999
APPLICATION INFORMATION
power-good indicator
The TPS768xx features a power-good (PG) output that can be used to monitor the status of the regulator. The
internal comparator monitors the output voltage: when the output drops to between 92% and 98% of its nominal
regulated value, the PG output transistor turns on, taking the signal low. The open-drain output requires a pullup
resistor. If not used, it can be left floating. PG can be used to drive power-on reset circuitry or used as a
low-battery indicator. PG does not assert itself when the regulated output voltage falls out of the specified 2%
tolerance, but instead reports an output voltage low, relative to its nominal regulated value.
regulator protection
The TPS768xx PMOS-pass transistor has a built-in back diode that conducts reverse currents when the input
voltage drops below the output voltage (e.g., during power down). Current is conducted from the output to the
input and is not internally limited. When extended reverse voltage is anticipated, external limiting may be
appropriate.
The TPS768xx also features internal current limiting and thermal protection. During normal operation, the
TPS768xx limits output current to approximately 1.7 A. When current limiting engages, the output voltage scales
back linearly until the overcurrent condition ends. While current limiting is designed to prevent gross device
failure, care should be taken not to exceed the power dissipation ratings of the package. If the temperature of
the device exceeds 150°C(typ), thermal-protection circuitry shuts it down. Once the device has cooled below
130°C(typ), regulator operation resumes.
power dissipation a,-.d junction temperature
Specified regulator operation is assured to a junction temperature of 125°C; the maximum junction temperature
should be restricted to 125°C under normal operating conditions. This restriction limits the power dissipation
the regulator can handle in any given application. To ensure the junction temperature is within acceptable limits,
calculate the maximum allowable dissipation, PO(max), and the actual dissipation, Po, which must be less than
or equal to PO(max)'
The maximum-power-dissipation limit is determined using the following equation:
P
TJmax - TA
- --=--=-----'-'
D(max) -
RaJA
Where
TJmax is the maximum allowable junction temperature
RaJA is the thermal resistance junction-to-ambient for the package, i.e., 172°CIW for the 8-terminal
SOIC and 32.6°CIW for the 20-terminal PWP with no airflow.
TA is the ambient temperature.
The regulator dissipation is calculated using:
PD = (VI - V o) x 10
Power dissipation resulting from quiescent current is negligible. Excessive power dissipation will trigger the
thermal protection circuit.
~TEXAS
INSTRUMENTS
2-344
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS76901, TPS76912, TPS76915, TPS76918, TPS76925
TPS76927, TPS76928, TPS76930, TPS76933, TPS76950
ULTRA LOW-POWER 100-mA LOW-DROPOUT
LINEAR REGULATORS
SLVS203C - JUNE 1999 - REVISED SEPTEMBER 1999
•
•
•
•
•
US
DBVPACKAGE
(TOP VIEW)
• 100-mA Low-Dropout Regulator
• Available in 1.2-V, 1.5-V, 1.a-V, 2.5-V, 2.7-V,
2.a-V, 3.0-V, 3.3-V, and 5-V Fixed-Output and
Adjustable Versions
IN
Only 17 tJ.A Quiescent Current at 100 mA
1 tJ.A Quiescent Current in Standby Mode
Dropout Voltage Typically 71 mV @ 100mA
Over Current limitation
-40°C to 125°C Operating Junction
Temperature Range
GND
OUT
2
EN
3
4
NCfFB
• 5-Pin SOT-23 (DBV) Package
description
The TPS769xx family of low-dropout (LDO) voltage regulators offers the benefits of low dropout voltage, ultra
low-power operation, and miniaturized packaging. These regulators feature low dropout voltages and ultra low
quiescent current compared to conventional LDO regulators. Offered in a 5-terminal small outline
integrated-circuit SOT-23 package, the TPS769xx series devices are ideal for micropower operations and
where board space is at a premium.
A combination of new circuit design and process innovation has enabled the usual PNP pass transistor to be
replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the
dropout voltage is very low, typically 71 mV at 100 mA of load current (TPS76950), and is directly proportional
to the load current. Since the PMOS pass element is a voltage-driven device, the quiescent current is ultra low
(28 IlA maximum) and is stable over the entire range of output load current (0 mA to 100 mA).
Intended for use in portable systems such as
TPS76933
laptops and cellular phones, the ultra low-dropout
GROUND CURRENT
voltage feature and ultra low-power operation
vs
result in a significant increase in system battery
FREE-AIR TEMPERATURE
operating life.
The TPS769xx also features a logic-enabled
sleep mode to shut down the regulator, reducing
quiescent current to 1 !lA typical at TJ = 25°C. The
TPS769xx is offered in 1.2-V, 1.5-V, 1.8-V, 2.5-V,
2.7-V, 2.8-V, 3.0-V, 3.3-V, and 5-V fixed-voltage
versions and in a variable version (programmable
over the range of 1.2 V to 5.5 V).
C
22
v~=4.1v
21 -
CO=4.7I1F
I
~
/
20
,/"
::\.
I
C
~
Vk
:>
0
i:>
18
CI
17
e
16
./
IO=l00mA ' /
19
/
/
/
,/"
:/
./ V;~=omA
:/ :/
;'
:/
"
15
-60 -40 -20
0
20
40
60
80 100 120 140
TA - Free-Air Temperature - °C
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Copyright © 1999, Texas Instruments Incorporated
2-345
TPS76901, TPS76912, TPS76915,TPS76918, TPS76925
TPS76927, TPS76928, TPS76930, TPS76933, TPS76950
ULTRA LOW-POWER 100-mA LOW-DROPOUT LINEAR REGULATORS
SLVS203C - JUNE 1999 - REVISED SEPTEMBER 1999
AVAILABLE OPTIONS
VOLTAGE
TJ
PART NUMBER
TPS76901 DBvrt
TPS76901 DBVR:I:
PCFI
1.2V
TPS76912DBvrt
TPS76912DBVR:I:
PCGI
1.SV
TPS7691SDBvrt
TPS7691SDBVR:I:
PCHI
1.8V
TPS76918DBvrt
TPS76918DBVR:I:
PCII
TPS7692SDBvrt
TPS7692SDBVR:I:
PCJI
PCKI
2.7V
SOT-23
(DBV)
TPS76927DBvrt
TPS76927DBVR:I:
2.8V
TPS76928DBvrt
TPS76928DBVR:I:
PCLI
3.0V
TPS76930DBvrt
TPS76930DBVR:I:
PCMI
TPS76933DBvrt
TPS76933DBVR:I:
PCNI
TPS769S0DBvrt
TPS76950DBVR:I:
PCOI
3.3V
S.OV
t The DBVT Indicates tape and reel of 250 parts.
:I: The DBVR indicates tape and reel of 3000 parts.
functional block diagram
TPS76901
IN - - - - - - - . . . , r - - - {
EN - - - - - - - ,
J-----OUT
~~r------------FB
TPS76912115/18/25/27/28/30133/50
IN - - - - - - - . . . . , ..----1
EN - - - - - - - ,
)----e-OUT
~·TEXAS
2-346
SYMBOL
Variable
1.2Vto S.SV
2.SV
-40°C to 12SoC
PACKAGE
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS76901, TPS76912, TPS76915, TPS76918, TPS76925
TPS76927,TPS76928, TPS76930, TPS76933, TPS76950
ULTRA LOW-POWER 100-mA LOW-DROPOUT LINEAR REGULATORS
SLVS203C - JUNE 1999 - REVISED SEPTEMBER 1999
Terminal Functions
TERMINAL
NAME
NO.
1/0
DESCRIPTION
GND
2
EN
3
I
FB
4
I
Feedback voltage (TPS76901 only)
IN
1
I
Input supply voltage
NC
4
OUT
5
Ground
Enable input
No connection (Fixed options only)
0
Regulated output voltage
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)t
Input voltage range (see Note 1) .................................................. -0.3 V to 13.5 V
Voltage range at EN .......................................................... -0.3 V to VI + 0.3 V
Voltage on OUT, FB .......................................................................... 7 V
Peak output current ............................................................. Internally limited
ESD rating, HBM ......................................................................... 2 kV
Continuous total power dissipation ...................................... See dissipation rating table
Operating virtual junction temperature range, TJ .................................... -40°C to 150°C
Storage temperature range, Tstg .................................................. -65°C to 150°C
t Stresses beyond those listed under "absolute maximum ratings' may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions' is not
implied. Exposure to absolute-maxi mum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values are with respect to network ground terminal.
DISSIPATION RATING TABLE
PACKAGE
TA~2SoC
POWER RATING
DERATING FACTOR
ABOVE TA = 2SoC
TA = 70°C
POWER RATING
TA=BSoC
POWER RATING
Recommended
DBV
3S0mW
3.SmW/oC
192mW
140mW
Absolute Maximum
DBV
437mW
3.5mW/oC
2BOmW
227mW
recommended operating conditions
MIN
NOM
MAX
UNIT
Input voltage, VI (see Note 2)
2.7
10
Output voltage range, Vo
1.2
5.S
V
0
100
mA
-40
125
°C
Continuous output current, 10 (see Note 3)
Operating junction temperature, TJ
V
NOTES: 2. To calculate the minimum input voltage for your maximum output current, use the following formula:
VI (min) = Vo(max) + VDO (max load)
3. Continuous output current and operating junction temperature are limited by intemal protection circuitry, but it is not recommended
that the device operate under conditions beyond those specified in this table for extended periods of time.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-347
TPS76901, TPS76912, TPS76915, TPS76918, TPS76925
TPS76927, TPS76928,TPS76930, TPS76933,TPS76950
ULTRA LOW-POWER 100-mA LOW-DROPOUT LINEAR REGULATORS
SLVS203C - JUNE 1999 - REVISED SEPTEMBER 1999
electrical characteristics-over recommended operating free-alr temperature range, VI
1 V, 10 = 100 mA, EN = OV, Co = 4.7 ~F (unless otherwise noted)
PARAMETER
TEST CONomONS
1.2 V~Vo ~ 5.5 V,
TPS76901
1.2V~VO ~5.5
TPS76912
TPS76915
TPS76918
Output voltage
(10 IJA to 100 rnA Load)
(See Note 4)
TPS76925
TPS76927
TPS76928
TPS76930
TPS76933
TPS76950
Quiescent current (GND current)
(See Note 4 and Note 5)
Load regulation
MIN
TJ = 25°C
V,
TJ = -4Q°C to 125°C
TJ = 25°C,
2.7V < VIN < 10V
TJ = -40°C to 125°C,
2.7V
~
I
t
2.492
"-
"',
:§Z 2.490
~
c5 2.488
b
>
1.498
~
VI=3.5V
CO=4.7I1F TA=25°C
> 1.494
~
I
t
""
1.492
1l
" "-.,.""
8
r-....
b 1.488
r-....._
:1 1 1 1 1 J ::1
>
o
20
40
60
80
100
0
20
10 - Output Current - mA
40
60
80
10 - Output Current - mA
Figure 1
> 3.280
TPS76933
TPS76915
OUTPUT VOLTAGE
vs
vs
OUTPUT CURRENT
FREE·AIR TEMPERATURE
I
i
3.278
1
3.276
~
8
~
I
"'-
20
V;I
/
1.492
8.
~
"~
60
o!
"
80
10 - Output Current - mA
CO=4.7I1F I - -
J
1/
1.488
b
>' 1.484
1/
V
....-:10=1OOmA
1.482
100
Figure 4
~1ExAs
INSTRUMENTS
POST OFFICE
sox 655303 •
"'
.....
"i'..
I'
1.480
-60 -40 -20 0 20 40 60 80 100 120 140
TA - Free-Air Temperature - °C
Figure 3
2~50
'bh...
I VI =12.7J
~
':5 1.488
"~
40
1.490
10=1 mA
{'
I
3.272
o
.kt:
I
1.494
>
3.274
3.270
1.496
I
VI=4.3V
CO=4.7I1F _
TA = 25° C
'"
100
Figure 2
OUTPUT VOLTAGE
3.284
3.282
~
"""
1 1 1 1J
11.490
r--.....
"
VI=2.7V
Co = 4.7 I1F
TA=25°C
1.496
DALlAS. TEXAS 75265
TPS76901, TPS76912, TPS76915, TPS76918, TPS76925
TPS76927,TPS76928,TPS76930,TPS76933,TPS76950
ULTRA LOW-POWER 100-mA LOW-DROPOUT
LINEAR REGULATORS
SLVS203C - JUNE 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
TPS76925
TPS76933
OUTPUT VOLTAGE
OUTPUT VOLTAGE
vs
vs
FREE-AIR TEMPERATURE
FREE-AIR TEMPERATURE
2.496
2.494
./
2.492
2.486
.........
3.280
>
I
t
.........
-? 2.482
V'"
f'
10= 100 mA
V
I
!b
"\
3.275
20
40
60
/
'I
/
/
vs
,
1
I
~
:::I
0
"0
c
10=100mA ' /
19
18
:::I
e
"
17
16
15
V
,/ V
./
/
::I.
,/
/
/'
l/ /
Vv
'\
TPS76933
vs
1:
"
OUTPUT SPECTRAL NOISE DENSITY
FREE-AIR TEMPERATURE
C
.........
10=100mA
TPS76933
20
~
Figure 6
GROUND CURRENT
21 ~ CO=4.7I1F
I..........
'\ ,
Figure 5
V~=4.~V
"
VI=4.3V
_
Co = 4.711F
3.255
-60 -40 -20 0 20 40 60 80 100 120 140
TA - Free-Air Temperature - °C
80 100 120 140
TA - Free-Air Temperature - °C
22
10=1 mA
I
3.260
II
I I I
0
3.265
~,
V
V ,....
)ii
"\
VI=3.5V
Co = 4.7 Ilf'
2.476
-60 -40 -20
/'
I'
~
'$ 3.270
./
I
2.478
.........
10=1 mA
L
8S. 2.484 II
2.480
3.285
II
CD
~
_
-
-
V
~ 2.490
J 2.488
/'
.....
,/
FREQUENCY
2
l!~
I
..
1.8
r"I
1.6
~
1.4 r-- -
c
1.2
.!
~~
CO=4.7I1F
10=100mA
"!
~
V"
1/
0.6
'$
0.4
~
0
-60 -40 -20
0 20 40 60 80 100 120 140
TA - Free-Air Temperature - °C
I~
0.8
i
Ul
0.2
_ _ 10=1mA
1\\
Iz
Vlo=omA
II I
60~~0IJ~1
CO=4.7I1F
10=1 mA
I 1111111
r- VI=4.3V
o
I
r-- _I
~,
J~!~I~II1F \~
10= 100mA
I II II
100
~\
1k
10k
100k
f - Frequency - Hz
Figure 8
Figure 7
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-351
TPS76901, TPS76912, TPS76915, TPS76918, TPS76925
TPS76927, TPS76928,TPS76930, TPS76933, TPS76950
ULTRA LOW-POWER 100-mA LOW-DROPOUT LINEAR REGULATORS
SLVS203C - JUNE 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
TPS76933
OUTPUT IMPEDANCE
vs
FREQUENCY
2
1.6 -
VI=4.3V
CO=4.7I1F
ESR=0.3Q
TA=25°C
I
I
1.4
f ..
J
r!!
~
I
i
-
100
I--
~
10=1 rnA
I
J
\
\
/
0.8
0.6
I
VI=3.2V
Co = 4.711F
I
Cl
I
1000
..
.!.
1.8 -
DROPOUT VOLTAGE
vs
FREE-AIR TEMPERATURE
~
\
//
I
I
-
;>
I
I
I
-
--
10
g
10= 100 rnA
In=10mA
,I I I 1- I I I I II I
10
0 20 40 60 80 100 120 140
TA - Free-Air Temperature - °C
-60 -40 -20
f - Frequency - Hz
Figure 9
Figure 10
TPS76933
RIPPLE REJECTION
vs
FREQUENCY
100
90
80
m
70
I
60
I,
~
'Q
c
t
50
II:
40
1
ii:
30
1i'
LDO STARTUP TIME
EN
'"" "-
20
10 -
0 -10
10
10=1 rnA
/
~
\
~ A
10=1oo~A ,
~
/
1k
10 k
100 k
,
/
1M
Vo
10 M
o
20
f - Frequency - Hz
40
60
80 100 120 140 160 180 200
t-Tirne-IJ.S
Figure 12
Figure 11
-!I1TEXAS
2~2
/'
V
~
VI=4.3V
Co = 4.711f
ESR=0.3Q
100
-
~
INSTRUMENTS
POST OFFICE eox 655303 • DALLAS. TEXAS 75265
TPS76901, TPS76912, TPS76915, TPS76918, TPS76925
TPS76927, TPS76928,TPS76930, TPS76933,TPS76950
ULTRA LOW-POWER 100-mA LOW-DROPOUT
LINEAR REGULATORS
SLVS203C - JUNE 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
TPS76915
LINE TRANSIENT RESPONSE
>
TPS76915
LOAD TRANSIENT RESPONSE
E
I
c _~
I
CI)
~
'5
a.
.5
0
0
~
J
100
I
l
~
'a
2.7
'>
1
o
20
,I
40
1\
i~
c '5-200
2,e.
o ::I
11
IL=10mA
r- Co = 4.711F
ESR=0.30
I
0
I
~
\...
.5
100
C
5.3
~
,I
TPS76933
LOAD TRANSIENT RESPONSE
TPS76933
LINE TRANSIENT RESPONSE
10
,I
60 80 100 120 140 160 180 200
1- Time-lUI
Figure 14
I
j
VI=2.7V
CO= 1O I1F
ESR =0.30
0-400
Figure 13
~
II
c .!!
0
VI =4.3V
Co = 4.711F
ESR=0.30
::
100
i~
.! i
4.3
0
0'5
I 0 -100
IL=10mA
- Co = 4.711F
ESR=0.30
'>
o
I
,I
I
20
40
60
\.. /
~
2.494
I
& 2.492
~
~
1
d
'"
......
~,
1.498
.!
VI=3.5V
CO=4.7I1F TA=25°C
1.496
>
............
2.490
r---
o
~
...............
I
&
-
S 1.492
~
'i
~
2.488
~:I
1.494
VI=2.7V
CO=4.7I1F
TA=25°C
1.490
20
30
40
50
0
10
TPsn033
TPsn015
OUTPUT VOLTAGE
OUTPUT VOLTAGE
vs
vs
OUTPUT CURRENT
FREE-AIR TEMPERATURE
'i
3.276
~
~
~
VI =4.3V
Co = 4.711F
TA=25°C -
\.
"-b-...
1.494
V;I
1.492
.........
~ ..........
>
& 1.490 II'/
V
I
10=1 mA
/
~
J
I VI=1 2.7
Co = 4.711F
r---
--
~
~
~
! 1.488
!
1.486
b
:> 1.484
3.272
/
V
/
V
"
10=50mA
II'
~
~ ......
1.482
o
1.480
10
20
30
40
50
~o
-40 -20
0
20
40
60
80 100 120 140
TA - Free-Air Temperature - °C
10 - Output Current - mA
Figure 3
Figure 4
~TEXAS
INSTRUMENTS
2-364
50
I
3.274
3.270
.vr
1.496
I
3.278
~
Figure 2
3.284
i
...........
20
30
40
10 - Output Current - mA
Figure 1
> 3.280
~
1 1 1 1 1~::I 1 1 1 ·1 1
10
10 - Output Current - mA
3.282
----
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS77001, TPS77012, TPS77015,TPS77018, TPS77025
TPS77027, TPS77028, TPS77030,TPS77033, TPS77050
ULTRA LOW-POWER 50-rnA LOW-DROPOUT LINEAR REGULATORS
SLVS210C - JUNE 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
TPsn025
TPS77033
OUTPUT VOLTAGE
OUTPUT VOLTAGE
vs
vs
_1.---_
FREE·AIR TEMPERATURE
2.496
2.494
./
2.492
/
10=50mA
/
FREE·AIR TEMPERATURE
FREQUENCY
2 1"""'T""'T"'TTTTTTI;--;--'f"T'TTTTT1;--;--'f"TT
I
I TTmI
VII=4.~V
1
I
21 I- CO=4.7I1F
I
cc::i
20
I
C
~
:::I
19
'a
18
0
c
./
10=50mA/
:::I
e
~
17
/.
,
~~
16
/
15
-60 -40 -20
V
0
~
20
V
40
~~
~ ~=omA
60
80 100 120 140
TA - Free·Air Temperature - °C
Figure 7
f - Frequency - Hz
Figure 8
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-365
TPS77001, TPS77012,TPS77015, TPS77018, TPS77025
TPS77027, TPS77028, TPS77030, TPS77033, TPS77050
ULTRA LOW-POWER 50-rnA LOW-DROPOUT LINEAR REGULATORS
SLVS21 oc - JUNE 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
TPS77033
DROPOUT VOLTAGE
OUTPUT IMPEDANCE
vs
vs
FREQUENCY
FREE·AIR TEMPERATURE
100
2
VI=4.3V
Co = 4.711F
1.8
1.4
I
t~
8-
..§
!i
I
0.8
!
0
0.6
I
0
\
~
10=1 mA
1
,~
J
\
N
0.4
--:
=e
II
1.2
III
"a
I- CO=4.7I1F
I'
I
1.6
a
I
B
c
~ VI=3.2V
"
0.: II=~r...,.;;....::IO:..,..r-O
::1=--t-----I
100
100k
1k
10k
f - Frequency - Hz
Ilo=~om~
-
10
"5
I
1-
c
-~
10=10mA
I
$
I
I
I
,I I I I I I I I I I I
m_A1"""'1
10
-
.J...--t"'"
-~
1M
0 20 40 60 80 100 120 140
TA - Free·Alr Temperature - °C
-60 -40 -20
Figure 9
Figure 10
TPS77033
RIPPLE REJECTION
vs
90
80
CD
70
I
60
"a
c
~
..
50
l
40
-K
30
~
LDO STARTUP TIME
FREQUENCY
100
~
.,....-
~
EN
I'
10=1 mA
'I\..
/
"- ~
htt
\
.....
10 - VI=4.3V
_ CO=4.7I1F
0
ESR = 0.3 Q
-10
10
100
1k
/,
,
A
10=50mA
20
-
/
,-
I(
10k
100k
1M
V
Vo
10M
o
20
40
f - Frequency - Hz
Figure 11
60 80 100 120 140 160 180 200
t-TIme-1IS
Figure 12
~TEXAS
2-366
/
V
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS77001, TPS77012,TPS77015, TPS77018, TPS77025
TPS77027, TPS77028,TPS77030, TPS77033, TPS77050
ULTRA LOW-POWER 50-mA LOW-DROPOUT LINEAR REGULATORS
SLVS210C-JUNE 1999- REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
>
TPS77015
TPS77015
LINE TRANSIENT RESPONSE
LOAD TRANSIENT RESPONSE
E
cc
I
CD
01
E
!
10
'5
0
t
0
I
50
I
l
~
~
ai
-10
~
0
3.7
>
I
=e
&
&
!
~
I
&~
i 'S
"
'5
\
oS! -60
2.7
a.
oS
0
r-
I
'>"
o
'L= 10mA
CO=4.7ILF
ESR=0.3n
is
.1
.1
.1
~
20
40
60 80 100 120 140 160 180 200
t-Tlme-IJ.S
V,=2.7V
CO= 10ILF
ESR=0.3n
t-1oo
10
,,-
80 100 120 140 160 180 200
t-Time-ILS
Figure 14
TPS77033
TPS77033
LINE TRANSIENT RESPONSE
LOAD TRANSIENT RESPONSE
E
I
III
I
~
'5
a.
'5
0
I
10
0
~
,
50
I
o
-10
~
-
5.3
>
A
I
III
01
J!
~
'5
a.
oS
I
'>"
4.3
'L= 10mA
- CO=4.7ILF
ESR= 0.3 n
J
o 20 40 60 80 100 120 140 160 180
t-Tlme-IJ.S
V
o
20
Figure 15
40
V,=4.3V
CO=4.7ILF
ESR= 0.3 n
,j
,I
1
-
60 80 100 120 140 160 180
t- Tlme- IJ.S
Figure 16
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS. TEXAS 75265
2--367
TPS77001, TPS77012,TPS77015, TPS77018, TPS77025
TPS77027, TPS77028, TPS77030, TPS77033, TPS77050
ULTRA LOW-POWER 50-rnA LOW-DROPOUT LINEAR REGULATORS
SLVS210C - JUNE 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
TPS77033
TYPICAL REGIONS OF STABILITY
TPS77033
TYPICAL REGIONS OF STABILITY
EQUIVALENT SERIES RESISTANCE (ESR)t
EQUIVALENT SERIES RESISTANCE (ESR)
vs
vs
OUTPUT CURRENT
ADDED CERAMIC CAPACITANCE
Cl
Cl
I
I
f!
f!
c
S
.r!!
:Il
c
I
10
II:
i'"
:Il
'C
c7l
C
til
C
i'5
10
Ig
C'
!!!
I
II:
til
I
II:
[fi
W
5
10
15
20
25
30
35
40
45
0.1
50
0.2 0.3 0.4 0.5
0.6 0.7 0.8 0.9
1
Added Ceramic Capacitance - JlF
10 - Output Current - mA
Figure 17
Figure 18
TPS77033
TYPICAL REGIONS OF STABILITY
TPS77033
TYPICAL REGIONS OF STABILITY
EQUIVALENT SERIES RESISTANCE (ESR)t
EQUIVALENT SERIES RESISTANCE (ESR)
vs
vs
OUTPUT CURRENT
ADDED CERAMIC CAPACITANCE
100
Cl
I
II
10
i
~
.B'
I
II:
[fi
1~~~--~~~--~~~--~~
o
5
10
15
20
25
30
35
40
45
50
D.1
10 - Output Current - mA
Figure 19
Figure 20
~TEXAS
INSTRUMENTS
2-368
D.2 0.3 0.4 0.5
D.S D.7 D.B 0.9
Added Ceramic Capacitance - JlF
POST OFFICE BOX 655303 •.DALLAS. TEXAS 75265
1
TPS77001, TPS77012, TPS77015, TPS77018, TPS77025
TPS77027, TPS77028, TPS77030, TPS77033, TPS77050
ULTRA LOW-POWER 50-mA LOW-DROPOUT LINEAR REGULATORS
SLVS210C - JUNE 1999 - REVISED SEPTEMBER 1999
APPLICATION INFORMATION
The TPS770xx family of low-dropout (LOO) regulators have been optimized for use in battery-operated
equipment. They feature extremely low dropout voltages, low quiescent current (17 J.IA nominally), and enable
inputs to reduce supply currents to less than 1 J.IA when the regulators are turned off.
device operation
The TPS770xx uses a PMOS pass element to dramatically reduce both dropout voltage and supply current over
more conventional PNP-pass-element LOO designs. The PMOS pass element is a voltage-controlled device
and, unlike a PNP transistor, it does not require increased drive current as output current increases. Supply
current in the TPS770xx is essentially constant from no load to maximum load.
Current limiting and thermal protection prevent damage by excessive output current and/or power dissipation.
The device switches into a constant-current mode at approximately 350 mA; further load reduces the output
voltage instead of increasing the output current. The thermal protection shuts the regulator off if the junction
temperature rises above approximately 165°C. Recovery is automatic when the junction temperature drops
approximately 25°C below the high temperature trip point. The PMOS pass element includes a back gate diode
that conducts reverse current when the input voltage level drops below the output voltage level.
A voltage of 1.7 V or greater on the EN input will disable the TPS770xx internal circuitry, reducing the supply
current to 1JlA. A voltage of less than 0.9 V on the EN input will enable the TPS770xx and will enable normal
operation to resume. The EN input does not include any deliberate hysteresis, and it exhibits an actual switching
threshold of approximately 1.5 V.
A typical application circuit is shown in Figure 21.
TPS770xxt
1
C1
111F ;:::;;
IN
NCfFB
OUT
4
5
3
r - - EN
GND
2
rt
I
Vo
----.,I
~4.711F
I
IL_
-
I
I
E_
SR=O.20
_ _ _ oJI
L.-
tTPS77012, TPS77015, TPS77018, TPS77025, TPS77027,
TPS77028, TPS77030, TPS77033, TPS77050 (fixed-voltage options).
Figure 21. Typical Application Circuit
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-369
TPS77001, TPS77012, TPS77015, TPS77018, TPS77025
TPS77027, TPS77028, TPS77030, TPS77033, TPS77050
ULTRA LOW-POWER 50-rnA LOW-DROPOUT LINEAR REGULATORS
SLVS210C - JUNE 1999 - REVISED SEPTEMBER 1999
APPLICATION INFORMATION
. external capacitor requirements
Although not required, a 0.047-I1F or larger ceramic input bypass capacitor, connected between IN and GND
and located close to the TPS770xx, is recommended to improve transient response and noise rejection. A
higher-value electrolytic input capacitor may be necessary if large, fast-rise-time load transients are anticipated
and the device is located several inches from the power source.
Like all low dropout regulators, the TPS770xx requires an output capacitor connected between OUT and GND
to stabilize the internal control loop. The minimum recommended capacitance is 4.7I1F. The ESR (equivalent
series resistance) ofthe capacitor should be between 0.2 nand 10 n. to ensure stability. Capacitor values larger
than 4.711F are acceptable, and allow the use of smaller ESR values. Capacitances less than 4.711F are not
recommended because they require careful selection of ESR to ensure stability. Solid tantalum electrolytic,
aluminum electrolytic, and multilayer ceramic capacitors are all suitable, provided they meet the requirements
described above. Most of the commercially available 4. 711F surface-mount solid tantalum capacitors, including
devices from Sprague, Kemet, and Nichico, meet the ESR requirements stated above. Multilayer ceramic
capacitors may have very small equivalent series resistances and may thus require the addition of a low value
series resistor to ensure stability.
CAPACITOR SELECTION
PART NO.
MFR.
VALUE
MAX ESRt
T494B475K016AS
KEMET
4.71lF
1.50
1.9 x 3.5 x 2.8
195D106x0016x2T
SPRAGUE
10llF
1.50
1.3x7.0x2.7
695D106xOO3562T
SPRAGUE
10llF
1.30
2.5 x 7.6 x 2.5
AVX
4.71lF
0.60
2.6 x 6.0 x 3.2
TPSC475K035R0600
t
Size is in mm. ESR is maximum resistance in Ohms at 100kHz and TA
=25°C. Contact manufacturer for minimum ESR values.
~TEXAS
INSTRUMENTS
2-370
SIZE (H x LxW)t
POST OFFICE BOX 655303 • DAllAS, TEXAS 75265
TPS77001, TPS77012, TPS77015, TPS77018,TPS77025
TPS77027, TPS77028, TPS77030, TPS77033, TPS77050
ULTRA LOW-POWER 50-mA LOW-DROPOUT LINEAR REGULATORS
SLVS210C - JUNE 1999 - REVISED SEPTEMBER 1999
APPLICATION INFORMATION
output voltage programming
The output voltage of the TPS77001 adjustable regulator is programmed using an external resistor divider as
shown in Figure 22. The output voltage is calculated using:
Vo = V ref x (1 +
~~)
(1)
where
Vref = 1.224 V typ (the internal reference voltage)
Resistors R1 and R2 should be chosen for approximately 7-I.lA divider current. Lower value resistors can be
used but offer no inherent advantage and waste more power. Higher values should be avoided as leakage
currents at FB increase the output voltage error. The recommended design procedure is to choose
R2 = 169 kQ to set the divider current at 71.lA and then calculate R1 using:
R1 = ( :0 - 1) x R2
ref
(2)
OUTPUT VOLTAGE
PROGRAMMING GUIDE
OUTPUT
VOLTAGE
(V)
2.5
3.3
3.6
4.0
5.0
TPS77001
DIVIDER RESISTANCE
(kO>*
Rl
174
287
324
383
523
R2
169
169
169
169
169
V,-_---I,N
111F~
OUT 1-'5=---..._ _......_
~1.7V
L-
3
R1 ...
EN
FB
~O.9V
GND
2
:j: 1% values shown.
4
Vo
_ _ _ _ _ .,
I
I
11
I
R21 f4.7 F
-=IL _ESR=O.20
_ _ _ _ .JI
Figure 22. TPS77001 Adjustable LOO Regulator Programming
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-371
TPS77001, TPS77012, TPS77015, TPS77018, TPS77025
TPS77027, TPS77028, TPS77030, TPS77033, TPS77050
ULTRA LOW-POWER 50-mA LOW-DROPOUT LINEAR REGULATORS
SLVS21OC-JUNE 1999-REVISEDSEPTEMBER 1999
APPLICATION INFORMATION
power dissipation and Junction temperature
Specified regulator operation is assured to a junction temperature of 125°C; the maximum junction temperature
should be restricted to 125°C under normal operating conditions. This restriction limits the power dissipation
the regulator can handle in any given application. To ensure the junction temperature is within acceptable limits,
calculate the maximum allowable dissipation, PO(max), and the actual dissipation, Po, which must be less than
or equal to PO(max).
The maximum-power-dissipation limit is determined using the following equation:
p'
_ TJmax - T A
D(max) R.aJA
Where
TJmax is the maximum allowable junction temperature
RaJA is the thermal resistance junction-to-ambient for the package, i.e., 285°CIW for the 5-terminal
SOT23.
TA is the ambient temperature.
The regulator dissipation is calculated using:
Power dissipation resulting from quiescent current is negligible. Excessive power dissipation will trigger the
thermal protection circuit.
regulator protection
The TPS770xx PMOS-pass transistor has a built-in back diode that conducts reverse current when the input
voltage drops below the output voltage (e.g., during power down). Current is conducted from the output to the
input and is not internally limited. If extended reverse voltage operation is anticipated, external limiting might
be appropriate.
The TPS770xx features internal current limiting and thermal protection. During normal operation, the TPS770xx
limits output current to approximately 350 mAo When current limiting engages, the output voltage scales back
linearly until the overcurrent condition ends. While current limiting is designed to prevent gross device failure,
care should be taken not to exceed the power dissipation ratings of the package. If the temperature of the device
exceeds approximately 165°C, thermal-protection circuitry shuts it down. Once the device has cooled down to
below approximately 140°C, regulator operation resumes.
~TEXAS
2-372
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS77501, TPS77515, TPS77518, TPS77525, TPS77533 WITH RESET OUTPUT
TPS77601, TPS77615, TPS77618, TPS77625, TPS77633 WITH PG OUTPUT
FAST-TRANSIENT-RESPONSE 500-rnA LOW-DROPOUT VOLTAGE REGULATORS
1999 -
SEPTEMBER 1999
PWPPACKAGE
(TOP VIEW)
• Open Drain Power-On Reset With 200-ms
Delay (TPS775xx)
• Open Drain Power Good (TPS776xx)
• 500-mA Low-Dropout Voltage Regulator
• Available in 1.5-V, 1.8-V, 2.5-V, 3.3-V Fixed
Output and Adjustable Versions
GND/HSINK
GND/HSINK
GND/HSINK
GND/HSINK
NC
NC
RESET/PG
FB/NC
OUT
OUT
GND/HSINK
GND/HSINK
1
2
NC
EN
• Dropout Voltage to 169 mV (Typ) at 500 rnA
(TPS77x33)
IN
NC
GNDIHSINK
GND/HSINK
• Ultra Low 85 !lA Typical Quiescent Current
• Fast Transient Response
• 2% Tolerance Over Specified Conditions for
Fixed-Output Versions
• 8-Pin SOIC and 20-Pin TSSOP PowerPADTM
(PWP) Package
9
11
NC - No internal connection
De
o PACKAGE
(TOP VIEW)
• Thermal Shutdown Protection
description
GND
EN
IN
IN
The TPS775xx and TPS776xx devices are
designed to have a fast transient response and be
stable with a 10-ll-F low ESR capacitors. This
combination provides high performance at a
reasonable cost.
2
3
4
7
6
5
RESET/PG
FB/NC
OUT
OUT
TPS77x33
DROPOUT VOLTAGE
TPS77x33
LOAD TRANSIENT RESPONSE
vs
FREE-AIR TEMPERATURE
>
.5 E
CD I
"'CD
CQ
!~
10 = 500 mA
o~
1-
Co = 2x47IlF
ESR = 1/2xl00 mn
50 t-- VO=3.3V
VI=4.3V
0
~
......
0"
>a.
3.2810
./
~'
./"
5
J>1.4960
vf~
1.4955 J
1.4950
o
0.1
0.2
0.3
10 - Output Current - A
,
11.4965
3.2805
3.2800
,.,
> 1.4975
> 3.2825
0.4
0.5
/
r-"
o
0.1
/
V
./
0.2
0.3
0.4
10 - Output Current - A
Figure 3
Figure 2
TPS77x25
TPS77x33
OUTPUT VOLTAGE
OUTPUT VOLTAGE
vs
vs
OUTPUT CURRENT
FREE-AIR TEMPERATURE
2.4960
3.32
~
VI=3.5V
TA=25°C -
2.4955
l
I
/~
VI=4.3V
3.31
2.4950
>
>
3.30
i ::::
1
3.29
..
A~
I
I
J
2.4935
J> 2.4930
2.4925
2.4920
~I
""
o
I
~
~
~"
./
~
'S
!
10=500mA~
3.28
0
I
~ 3.27
3.26 "/..
,
0.1
0.2
0.5
0.3
0.4
0.5
~
I'
10=1 mA
~~
V
3.25
-60 -40 -20
10 - Output Current - A
~
~
0
20
40
60
80 100 120 140
TA - Free-Air Tempereture - °C
Figure 4
Figure 5
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-381
TPsn501, TPSn515, TPS77518, TPSn525, TPS77533 WITH RESET OUTPUT
TPSn601, TPSn615, TPSn618, TPS77625, TPS77633 WITH PGOUTPUT
FAST-TRANSIENT-RESPONSE 50D-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS232A - SEPTEMBER 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
1.515
TPSnx15
TPS77x25
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
I
2.515
I
II
VI=3.5V
VI =2.7V
V
1.510
/
>
_!i!lO~ 1.505
JlI
>
'S 1.500
a.
~l
~
-
1.495
r-
iO=500m~
/~/
/~
/
;'
Vj V
>~
Sa
~ 2.500
i
~L
/
2.495
/'
~ 2.490
I I
~
iO=500 mA
S-
10=1mA
V/ /'"
/~V
V
2.510
./' V
./
~V
V
10=1 mA
I
./ /
!
"ttl I II I II II '-1111 I I I I I I
1.485
-60 -40 -20 0 20 40 60 80 100 120 140
TA - Free-Air Temperature - °C
2.480 L...-....I....--I._-'---I.._L...-....I....-..J._-'-.....J
-60 -40 -20 0
20 40 60 80 100 120
TA - Free-Air Temperature - °C
Figure 6
Figure 7
TPS77x33
TPS77xxx
POWER SUPPLY RIPPLE REJECTION
vs
FREQUENCY
GROUND CURRENT
vs
FREE-AIR TEMPERATURE
100
90
I .l
VI = 2.7 V
III
"a
/~
95
cc:::!.
I
~
90
-
c-- 10=1 mA
i
~
e
V
",-
/./
V/
~
0
85
V
CI
V
./
/
80
75
". ~
V
/'
~
/
V
10= 500 mA
I
i
I
Gi"
II:
J
J
I
II:
~
~
20 40 60 80 100 120 140
TA - Free-Air Temperatura - °C
.1
70
~
60
50
40
30
1.
10k
100k
10
o
10
Figure 8
100
1k
f - Frequency - Hz
Figure 9
~TEXAS
2-382
"
20
-10
-60 -40 -20 0
"'"
VI=4.3V
Co= 101J.F
TA = 25°C
80
INSTRUMENTS
POST OFFICE SOX 655303 • DALlAS, TEXAS 75265
1M
TPS77501, TPS77515, TPS77518, TPS77525, TPS77533 WITH RESET OUTPUT
TPS77601, TPS77615, TPS77618, TPS77625, TPS77633 WITH PG OUTPUT
FAST-TRANSIENT-RESPONSE 500-rnA LOW-DROPOUT VOLTAGE REGULATORS
SLVS232A- SEPTEMBER 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
TPS77x33
OUTPUT IMPEDANCE
TPsnx33
OUTPUT SPECTRAL NOISE DENSITY
vs
vs
FREQUENCY
FREQUENCY
o
VI=4.3V
CO= 10/!F
TA = 25°C
VI =4.3V
Co=10/!F
TA=25°C
~
/
r-II~ ~1~lm11
10=7mA
I'
~
11
10=500mA
~
~
~~
1~~~~~~~~~~~~~~
1_
1~
1_
10-2 1
10
1~
10=500mA
'l"lV
11111
~mlil
III
1111111
f - Frequency - kHz
f - Frequency - Hz
Figure 10
Figure 11
TPS77x33
DROPOUT VOLTAGE
TPS77x01
DROPOUT VOLTAGE
vs
vs
FREE-AIR TEMPERATURE
INPUT VOLTAGE
~O.----.----.----.-----.---,
10= 500 mA
~O~---+----+---~----~--~
>
=sI
250r----+~~+-~~-----r--~
t
200
~
I 150r-....3o"d-----+----==.......,=----r--~
I
t
101
~
-p8.
10 = 10 mA
_
100
Q
I
I
$
10=500mA
E
g
100
> 10-1
5Or----+----+---~-----r--~
O~--~----~--~----~--~
2.5
3
3.5
4
VI -Input Voltage - V
4.5
5
CO= 10 /!F
;I
I
10-2
-60 -40 -20 0
10=0
I
20
40
60
I
80 100 120 140
TA - Free-Air Temperature - °C
Figure 12
Figure 13
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-383
TPS77501, TPS77515, TPS77518, TPS77525, TPS77533 WITH RESET OUTPUT
TPS77601, TPS77615, TPS77618, TPS77625, TPS77633 WITH PG OUTPUT
FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS232A - SEPTEMBER 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
TPS77x15
LINE TRANSIENT RESPONSE
TPS77x15
LOAD TRANSIENT RESPONSE
>
I
III
aI
C
3.7
i~
Cal
!
~
'S
a.
.5
I
>E
.!!
o~
Co = 2x4711F
I- ESR = 1/2x1 00 mO
50
VO=1.5V
VIN = 2.7V
o
V
1'$
~ a. -50
2.7
"
~
C
!
~ 10
Gil
allII
C
J
!-
!
l
0
O~
b'5 -10 I--
~~
CL = 10 I1F
f. ... ~~~. ~~~~ I .... 1. ,,I, ,,I, ,,,I, ,,,I, ,,,I, ,,,~
o
~
@
~
G
500
I
o
I
.9
t ',,I"',I, ,,,I, ,"I, ,,.$, ,,,I"',I, ,,,I"',I, ,,,~
o
~1001~1@1~100~0
~
~
@
t- TIme-lIS
Figure 14
TPS77x33
LOAD TRANSIENT RESPONSE
'dL =~O I1F'
I
t
-
~
Co = 2x4711F
:-- ESR = 1/2x100 mO
Vo = 3.3 V
VI = 4.3 V
TA=25°C
5.3
i
1001~1@1~1~~
Figure 15
TPS77x33
LINE TRANSIENT RESPONSE
>
~
t-Tlme - lIS
0.-
W-
I
>"
_I>
C
E
4.3
C
E
10
'E
~:::I
~
aleD
Cal
.!!
0
01
-10
'f~
~~
\
I
V
0
'S
500
0
f
0
I
.9
o
~
@
60
00 100 120 1@
t- TIme- lIS
1~
1~
200
o
~
~
~
ro01~1@1~1~m
t-Tlme-IIS
Figure 16
Figure 17
~TEXAS
2-384
@
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS, TEXAS 75265
TPS77501, TPS77515, TPS77518, TPS77525, TPS77533 WITH RESET OUTPUT
TPS77601, TPS77615, TPS77618, TPS77625, TPS77633 WITH PG OUTPUT
FAST·TRANSIENT·RESPONSE 500·mA LOW·DROPOUT VOLTAGE REGULATORS
SLVS232A - SEPTEMBER 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
TPS77x33
OUTPUT VOLTAGE
vs
TIME (AT STARTUP)
4
>
.
I
til
1l!
~
'S
3
....-'!
2
I
~
v
-
0
:!'
0
>
.
.
I
OJ
'3
D.
:is
os
c
w
o
~
~
~
~
1001~1~1~1~~O
t- Time-1lS
Figure 18
VI
To load
IN
~
OUT
+
Co
R
ESR
LJL
-=Figure 19. Test Circuit for Typical Regions of Stability (Figures 20 through 23) (Fixed Output Options)
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-385
TPsn501, TPS77515, TPS77518, TPSn525, TPS77533 WITH RESET OUTPUT
TPSn601, TPSn615, TPS77618, TPSn625, TPSn633 WITH PG OUTPUT
FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS232A- SEPTEMBER 1999- REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCEt
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCEt
vs
vs
OUTPUT CURRENT
OUTPUT CURRENT
10
10
Cl
Cl
I
I
8c
III
:PiII
d!
i
Ic
.~
~
Ul
"E
~
~,.
M
.B"
I
a:
I
fa
a:
Vft=
V
Ci=4.7I1F
VI=4.3V
TA=25°C
Iii
Vo=
0.1
0.10L---1....J00'---2..i.00---3"-00--40-'-0-----'500
'
CI=4.7~F
VI = 4.3
TJ=
0
100
200
300
400
500
10 - Output Current - mA
10 - Output Current - mA
Figure 21
Figure 20
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCEt
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCEt
vs
vs
OUTPUT CURRENT
OUTPUT CURRENT
10
Cl
I
Cl
8c
..
I
CD
!!
II
I!!
C
III
m
~..
·c1
c
I.B"
CD
~,.
c:r
w
I
a:
Ul
w
I
a:
ffi
100
200
300
400
500
Vo=
V
CI=22I1F
VI=4.3 V
TJ =
0.1
0
100
200
300
400
500
10 - Output Current - mA
10 - Output Current - mA
Figure 22
Figure 23
t Equivalent series resistance (ESR) refers to the total series resistance, including the ESR of the capacitor, any series resistance added
externally, and PWB trace resistance to CO.
~TEXAS
2-386
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TPS77501, TPS77515, TPS77518, TPS77525, TPS77533 WITH RESET OUTPUT
TPS77601, TPS77615, TPS77618, TPS77625, TPS77633 WITH PG OUTPUT
FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS232A - SEPTEMBER 1999 - REVISED SEPTEMBER 1999
APPLICATION INFORMATION
The TPS775xx and TPS776xx families include four fixed-output voltage regulators (1.5 V, 1.8 V, 2.5 V, and
3.3 V), and an adjustable regulator, the TPS77x01 (adjustable from 1.5 V to 5.5 V for TPS77501 option and
1.2 V to 5.5 V for TPS77601 option).
device operation
The TPS775xx and TPS776xx feature very low quiescent current, which remains virtually constant even with
varying loads. Conventional LDO regulators use a pnp pass element, the base current of which is directly
proportional to the load current through the regulator (lB = IcI~). The TPS775xx and TPS776xx use a PMOS
transistor to pass current; because the gate of the PMOS is voltage driven, operating current is low and
invariable over the full load range.
Another pitfall associated with the pnp-pass element is its tendency to saturate when the device goes into
dropout. The resulting drop in ~ forces an increase in IB to maintain the load. During power up, this translates
to large start-up currents. Systems with limited supply current may fail to start up. In battery-powered systems,
it means rapid battery discharge when the voltage decays below the minimum required for regulation. The
TPS775xx and TPS776xx quiescent currents remain low even when the regulator drops out, eliminating both
problems.
The TPS775xx and TPS776xx families also feature a shutdown mode that places the output in the
high-impedance state (essentia"y equal to the feedback-divider resistance) and reduces quiescent current to
21lA. Ifthe shutdown feature is not used, EN should be tied to ground. Response to an enable transition is quick;
regulated output voltage is typically reestablished in 120 JlS.
minimum load reqUirements
The TPS775xx and TPS776xx families are stable even at zero load; no minimum load is required for operation.
FB - pin connection (adjustable version only)
The FB pin is an input pin to sense the output voltage and close the loop for the adjustable option. The output
voltage is sensed through a resistor divider network to close the loop as it is shown in Figure 25. Norma"y, this
connection should be as short as possible; however, the connection can be made near a critical circuit to
improve performance at that point. Interna"y, FB connects to a high-impedance wide-bandwidth amplifier and
noise pickup feeds through to the regulator output. Routing the FB connection to minimize/avoid noise pickup
is essential.
external capaCitor requirements
An input capacitor is not usually required; however, a ceramic bypass capacitor (0.047 IJ.F or larger) improves
load transient response and noise rejection if the TPS775xx or TPS776xx are located mora than a few inches
from the power supply. A higher-capacitance electrolytic capacitor may be necessary if large (hundreds of
milliamps) load transients with fast rise times are anticipated.
Like a" low dropout regulators, the TPS775xx and TPS776xx require an output capacitor connected between
OUT and GND to stabilize the internal control loop. The minimum recommended capacitance value is 10 IJ.F
and the ESR (equivalent series resistance) must be between 50 mQ and 1.5 n Capacitor values 10 IJ.F or larger
are acceptable, provided the ESR is less than 1.5 Q. Solid tantalum electrolytic, aluminum electrolytic, and
multilayer ceramic capacitors are a" suitable, provided they meet the requirements d~scribed previously.
~1ExAs
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-387
TPS77501, TPS77515, TPS77518, TPS77525, TPS77533 WITH RESET OUTPUT
TPS77601, TPS77615, TPS77618, TPS77625, TPS77633 WITH PG OUTPUT
FAST-TRANSIENT-RESPONSE SOO-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS232A - SEPTEMBER 1999 - REVISED SEPTEMBER 1999
APPLICATION INFORMATION
external capacitor requirements (continued)
6
VI
7
C1
O.lI!F
5
16
IN RESETI
PG
IN
14
OUT
13
EN
OUT
RESETIPG
250kO
Vo
----.I
+
Co
10 I!F
I
I
_ _ _ oJI
Figure 24. Typical Application Circuit (Fixed Versions)
!)rogramming the TPS77x01 adjustable lDO regulator
The output voltage of the TPS77x01 adjustable regulator is programmed using an external resistor divider as
shown in Figure 25. The output voltage is calculated using:
Vo = Vref x (1 +
~~)
(1)
Where
Vref = 1.1834 V typ(the internal reference voltage)
Resistors R1 and R2 should be chosen for approximately 10-1lA divider current. Lower value resistors can be
used but offer no inherent advantage and waste more power. Higher values should be avoided as leakage
currents at FB increase the output voltage error. The recommended design procedure is to choose
R2 = 110 kn to set the divider current at approximately 10 J,lA and then calculate R1 using:
R1 =
(V0 _
1) x R2
(2)
V ref
OUTPUT VOLTAGE
PROGRAMMING GUIDE
TPS77x01
VI ----
.5 E
CDI
1:11 CD
21
10= 750 mA
o~
50 _
0
1-
~
;£>a.
3.2825
I
/
i3.2820
//'
~
13.2815
V
~
~3.2810
3.2805
3.2800
~
./
> 1.4975
I
i1.4970
~
!
1.4965
1.4955
0.125
/
~1.4960
1.4950
o
VI=2.7V
TA = 25°C
1.4980
0.25 0.375
0.5
0.675
10 - Output Current - A
0.75
~
o
0.125
0.675
TPS77x25
TPS77x33
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
0.75
3.32
VI=4.3V
VI = 3.5 V
TA = 25°C
2.4955
2.4950
./
I
8,2.4945
2.4940
V
~ 2.4935
V~
I
~2.4930
2.4925 u
o
/
,/'
>
A~
3.30
q7
I
III
J
,/
~
!5
!
./
3.29
10=750mA~
3.28
I
~ 3.27
3.26
0.25 0.375
0.5
10 - Output Current - A
0.675
0.75
3.25
t7
~~
0
/
0.125
.I~
3.31
>
2.4920
0.25 0.375
0.5
10 - Output Current - A
Figure 3
2.4960
1
~"
J
Figure 2
i
/ ' '"
./
./
/.
"
~O
10=1mA
~"
-40 -20
Figure 4
0 20 40 60 80 100 120 140
TA - Free-Air Temperature - °C
Figure 5
-!i1
TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-399
TPS77701, TPS77715, TPS77718, TPS77725, TPS77733 WITH RESET OUTPUT
TPS77801, TPS77815, TPS77818, TPS77825, TPS77833 WITH PG OUTPUT
FAST-TRANSIENT-RESPONSE 750-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS230A - SEPTEMBER 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
1.515
TPS77x15
TPS77x25
OUTPUT VOLTAGE
OUTPUT VOLTAGE
vs
vs
FREE-AIR TEMPERATURE
FREE-AIR TEMPERATURE
I
2.515
I
I
I,
VI = 3.5 V
VI=2.7V
i
1.510
V
2.510
> 2.505
1.505
/ /"
/
/
>
~
_ 1.500 -
!
-IO=';'50n:~
V/
1.495
I
~
/~/
~
~::0
-60 -40 -20
0
20
40
60
2.495
V
~ 2.490
::ltF I 1111111
-60 -40 -20
vs
vs
FREE-AIR TEMPERATURE
FREQUENCY
90
"0
/~
95
//'
/IO=500m~
C
::I.
10=1mA
90
§
V
/[:Y
CJ
e
85
V '"
1/
80
~
/
~
75-60 -40 -20
~
V
V '"
/r<
10 =750 mA
I
c
Ii
70
20
JI
40
iX
60
1'1
50
~
J
30
20
ff
o
80 100 120 140
Villi
.....
e.
I
II:
II:
40
100 120
Co= 10ILF
TA = 25°C
.1
60
10
-10
0
80
l~t~4.~
80
10
TA - Free-Air Tempereture - °C
FigureS
100
1k
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
10k
f - Frequency - Hz
Figure 9
~TEXAS
2-400
60
TPS77x33
III
CJ
40
POWER SUPPLY RIPPLE REJECTION
100
c
20
Figure 7
TPS77xxx
::0
0
TA - Free-Air Temperature - °C
GROUND CURRENT
"0
1
::1111 I I I I I I
80 100 120 140
Figure 6
C
1
V / 10=1mA
/
1 /1 /
TA - Free-Air Temperature - °C
I
/
/
I
I I
~
lo=750mA
o
10=1mA
/V/V
2.500
~/
~/
I
&
~
V/
/
~
100k
1M
TPS77701, TPS77715, TPS77718, TPS77725, TPS77733 WITH RESET OUTPUT
TPS77801, TPS77815, TPS77818, TPS77825, TPS77833 WITH PG OUTPUT
FAST-TRANSIENT-RESPONSE 750-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS230A - SEPTEMBER 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
TPsnx33
TPsnx33
OUTPUT SPECTRAL NOISE DENSITY
OUTPUT IMPEDANCE
vs
vs
FREQUENCY
FREQUENCY
10-5
o
VI=4.3V
CO= 1O I1F
TA = 25°C
VI=4.3V
CO=10I1F
TA = 25°C
I-
1'0...
r-11~~I~lImi I
c;
10=7mA
I
fl
c
i
11
.5
10 = 750 mA
/
I'
'I.
J
10-1
'5
~
!
I
~
~
(;~
V
10=750mA
11111
111111111
f - Frequency - Hz
f - Frequency - kHz
Figure 10
Figure 11
TPsnx33
DROPOUT VOLTAGE
TPSnx01
DROPOUT VOLTAGE
600
vs
vs
INPUT VOLTAGE
FREE-AIR TEMPERATURE
r-----y---"T"""---,---;----,
10=750mA
500~r--+----~--~-----r----;
:e
~
~Ohr--~~--+---~-----r----;
~
!i
300 t-:------'''''to..::'
I
200
J
I
103
-
10=750mA
10=10mA
t-----+---'==-......,::::--~-----=--+o;::__--;
$
100~---+----~--~-----r----;
10=0
O~-~--~-~---L-~
2.5
3
3.5
4
VI -Input Voltage - V
4.5
5
CO= 1Ol1F
10-2
-00 -40 -20
0
20
40
60
80 100 120 140
TA - Free-Air Temperature - °C
Figure 12
Figure 13
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-401
TPS77701, TPS77715, TPS77718, TPS77725, TPS77733 WITH RESET OUTPUT
TPS77801, TPS77815, TPS77818, TPS77825, TPS77833 WITH PG OUTPUT
FAST-TRANSIENT-RESPONSE 750-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS230A - SEPTEMBER 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
TPS77x15
LINE TRANSIENT RESPONSE
>
I
TPS77x15
LOAD TRANSIENT RESPONSE
>E
C
GI
aI
!l
~
o~
1"5
"5a.
.e
"
~ -00
cc
E
.!,
Gil
alGI
I
~!
-10
'E
~:::I
1
0
.0
"5
a.
O~
!. -=
1000
I
~ 10
C
V
~a.
2.7
I
Co = 2x47 I1F
_ ESR = 112x100 mO
50
VO=1.5V
VI = 2.7 V
0
i~
Cal
.l!!l
3.7
r-
CI =1011F
t . .J~~,~~~~
o
~
@
I", l", I"" I"" I"" I'" ,~
I""
~
500
0
"5
0
~, ," I" " I" '.1 " ',I,,,.$, ,,,I,,,,I,,,,I,,,,I,,,,~
I
.9
o
~1001~1@1~1~~0
~
~
~
t- Tlme-IJS
Figure 14
'6L='~011~1
I
GI
r-
aI
!l
~
"5
a.
TPS77x33
LOAD TRANSIENT RESPONSE
>
.eE
TA=25'C
GIl
aleD
Cal
50
O~
0
.l!!l
5.3
1
.e
r-
cc
4.3
E
1000
I
>
10
alGI
Cal
c:~
0
IV
~i -10
<1"5
~
'E
i
0
"5
500
0
;0
I
o
.9
o
~
@
~
~1001~1@1~1~200
o
~
t- Time-IJS
@
~
~1001~1@1~1~m
t-Tlme-IJS
Figure 16
Figure 17
~TEXAS
2-402
r- r-
o
>"
.l!!l
CO=2x4711F
ESR = 112x100 mo
VO=3.3V
VI=4.3V
Y"" r--
ti"5
~;- -50
I
.; ';'
1001~1~1~1~200
Figure 15
TPS77x33
LINE TRANSIENT RESPONSE
>
~
t- Tlme-IJS
INSTRUMENTS
POST OFFICE eox 655303 • DALLAS, TEXAS 75265
TPS77701, TPS77715, TPS7n18, TPSn725, TPS7n33 WITH RESET OUTPUT
TPS77801, TPS77815, TPSn818, TPSn825, TPS77833 WITH PG OUTPUT
FAST-TRANSIENT-RESPONSE 750-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS230A - SEPTEMBER 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
TPS77x33
OUTPUT VOLTAGE
vs
TIME (AT STARTUP)
4
3
2
I
~
/'"
.,.
o
>
I
3l
'5
0-
J
o
o
20
40
60
80 100 120 140 160 180 200
t-Tlme-IJ.S
Figure 18
IN
To Load
OUT~---'--~-------'-----'
R
L-IL
Figure 19. Test Circuit for Typical Regions of Stability (Figures 20 through 23) (Fixed Output Options)
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-403
TPsn701, TPSn715, TPS77718, TPS77725, TPS77733 WITH RESET OUTPUT
TPS77801, TPSn815, TPSn818, TPS77825, TPS77833 WITH PG OUTPUT
FAST-TRANSIENT-RESPONSE 750-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS230A - SEPTEMBER 1999 - REVISED SEPTEMBER 1999
TYPICAL CHARACTERISTICS
TYPICAL REGION OF STABILITY
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCEt
EQUIVALENT SERIES RESISTANCEt
vs
vs
OUTPUT CURRENT
OUTPUT CURRENT
Cl
I
I
::
'I
j
.~::J
LB"
I
II:
In
W
Vo=
CI
0.1
250
375
500
625
750
V
= 4.71lF -+-_j--_+-_-+__I
vl=4.3V
TJ = 125°C
'--_...J.-_--l-_ _.L.-_....L.._......J._----'
o
125
10 - Output Current - mA
250
375
500
625
750
10 - Output Current - mA
Figure 20
Figure 21
TYPICAL REGION OF STABILITY
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCEt
EQUIVALENT SERIES RESISTANCEt
vs
vs
OUTPUT CURRENT
OUTPUT CURRENT
Cl
I
Cl
I.;
I
i
·c1
I
~
LB"
::J
LB"
I
II:
I
II:
ffi
ffi
0.10'--"'------2...1.5O--3.L.75--50....0--6...J.25-----'750
0.1
'--_...J.-_--l-_ _.L.-_....L.._......J._----'
o
10 - Output Current - mA
Figure 22
t
250
375
500
625
750
10 - Output Current - mA
Figure 23
Equivalent series resistance (ESR) refers to the total series resistance, including the ESR of the capacitor, any series resistance added
externally, and PWB trace resistance to CO.
~TEXAS
2-404
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPsn701, TPS77715, TPS77718, TPS77725, TPS7n33 WITH RESET OUTPUT
TPS77801, TPS77815, TPSn818, TPS77825, TPSn833 WITH PG OUTPUT
FAST-TRANSIENT-RESPONSE 750-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS230A - SEPTEMBER 1999 - REVISED SEPTEMBER 1999
APPLICATION INFORMATION
The TPS777xx and TPS778xx families include four fixed-output voltage regulators (1.5 V, 1.8 V, 2.5 V, and
3.3 V), and an adjustable regulator, the TPS77x01 (adjustable from 1.5 V to 5.5 V for TPS77701 option and 1.2
V to 5.5 V for TPS77801 option).
device operation
The TPS777xx and TPS778xx feature very low quiescent current, which remains virtually constant even with
varying loads. Conventional LDO regulators use a pnp pass element, the base current of which is directly
proportional to the load current through the regulator (lB IcI~). The TPS777xx and TPS778xx use a PMOS
transistor to pass current; because the gate of the PMOS is voltage driven, operating current is low and
invariable over the full load range.
=
Another pitfall associated with the pnp-pass element is its tendency to saturate when the device goes into
dropout. The resulting drop in ~ forces an increase in IB to maintain the load. During power up, this translates
to large start-up currents. Systems with limited supply current may fail to start up. In battery-powered systems,
it means rapid battery discharge when the voltage decays below the minimum required for regulation. The
TPS777xx and TPS778xx quiescent currents remain low even when the regulator drops out, eliminating both
problems.
The TPS777xx and TPS778xx families also feature a shutdown mode that places the output in the
high-impedance state (essentially equal to the feedback-divider resistance) and reduces quiescent current to
21JA. If the shutdown feature is not used, EN should be tied to ground. Response to an enable transition is quick;
regulated output voltage is typically reestablished in 120 1lS.
minimum load requirements
The TPS777xx and TPS778xx families are stable even at zero load; no minimum load is required for operation.
FB - pin connection (adjustable version only)
The FB pin is an input pin to sense the output voltage and close the loop for the adjustable option. The output
voltage is sensed through a resistor divider network to close the loop as it is shown in Figure 25. Normally, this
connection should be as short as possible; however, the connection can be made near a critical circuit to
improve performance at that point. Internally, FB connects to a high-impedance wide-bandwidth amplifier and
noise pickup feeds through to the regulator output. Routing the FB connection to minimize/avoid noise pickup
is essential.
external capacitor requirements
An input capacitor is not usually required; however, a ceramic bypass capacitor (O.047 I1F or larger) improves
load transient response and noise rejection if the TPS777xx or TPS778xx are located more than a few inches
from the power supply. A higher-capacitance electrolytic capacitor may be necessary if large (hundreds of
milliamps) load transients with fast rise times are anticipated.
Like all low dropout regulators, the TPS777xx and TPS778xx require an output capacitor connected between
OUT and GND to stabilize the internal control loop. The minimum recommended capacitance value is 10 I1F
and the ESR (equivalent series resistance) must be between 50 mO and 1.5 o. Capacitor values 10 I1F or larger
are acceptable, provided the ESR is less than 1.5 o. Solid tantalum electrolytiC, aluminum electrolytic, and
multilayer ceramic capaCitors are all suitable, provided they meet the requirements described previously.
-!!1TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-405
TPS77701, TPS77715, TPS77718, TPS77725, TPS77733 WITH RESET OUTPUT
TPS77801, TPS77815, TPS77818, TPS77825, TPS77833 WITH PG OUTPUT
FAST-TRANSIENT-RESPONSE 750-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS230A - SEPTEMBER 1999 - REVISED SEPTEMBER 1999
APPLICATION INFORMATION
external capacitor requirements (continued)
6
VI
7
16
IN RESET!
PG
IN
250kO
OUT
C1
O.lI1F
5
EN
RESET!PG
Vo
---.,
+
I
OUT
Co
10l1F
I
I
_ _ _ oJI
GND
3
Figure 24. Typical Application Circuit (Fixed Versions)
programming the TPS77x01 adjustable LOO regulator
The output voltage of the TPS77x01 adjustable regulator is programmed using an extemal resistor divider as
shown in Figure 25. The output voltage is calculated using:
Vo = V ref x (1
+ ~~)
(1)
Where
Vref = 1.1834 V typ (the internal reference voltage)
Resistors R1 and R2 should be chosen for approximately 10-1lA divider current. Lower value resistors can be
used but offer no inherent advantage and waste more power. Higher values should be avoided as leakage
currents at FB increase the output voltage error. The recommended design procedure is to choose
R2 = 110 kO to set the divider current at approximately 10 IlA and then calculate R1 using:
R1 = (V0 _ 1) x R2
V ref
(2)
OUTPUT VOLTAGE
PROGRAMMING GUIDE
TPsnx01
VI
-----1r---1
0.111F
;;'1.7V
L-
IN
"±'
RESET!
PG
-
- - - I EN
OUT
I---..+-
Reset or PG Output
I---+-.-----<~
SO.9V
FB!NC
GND
1----'
.".R2
I
Vo
CO
OUTPUT
VOLTAGE
R1
2.5V
121
110
3.3V
196
110
3.6V
226
110
4.75 V
332
110
Figure 25. TPS77x01 Adjustable LDO Regulator Programming
~TEXAS
2-406
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
R2
UNIT
kO
kO
kO
kO
TPS77701, TPS77715, TPS77718, TPS77725, TPS77733 WITH RESET OUTPUT
TPS77801, TPS77815, TPS77818, TPS77825, TPS77833 WITH PG OUTPUT
FAST-TRANSIENT-RESPONSE 750-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS230A - SEPTEMBER 1999 - REVISED SEPTEMBER 1999
APPLICATION INFORMATION
reset indicator
The TPS777xx features a RESET output that can be used to monitor the status of the regulator. The internal
comparator monitors the output voltage: when the output drops to between 92% and 98% of its nominal
regulated value, the RESET output transistor turns on, taking the signal low. The open-drain output requires
a pullup resistor. If not used, it can be left floating. RESET can be used to drive power-on reset circuitry or as
a low-battery indicator. RESET does not assert itself when the regulated output voltage falls outside the
specified 2% tolerance, but instead reports an output voltage low relative to its nominal regulated value (refer
to timing diagram for start-up sequence).
power-good indicator
The TPS778xx features a power-good (PG) output that can be used to monitor the status of the regulator. The
internal comparator monitors the output voltage: when the output drops to between 92% and 98% of its nominal
regulated value, the PG output transistor turns on, taking the signal low. The open-drain output requires a pullup
resistor. If not used, it can be left floating. PG can be used to drive power-on reset circuitry or used as a
low-battery indicator.
regulator protection
The TPS777xx and TPS778xx PMOS-pass transistors have a built-in back diode that conducts reverse currents
when the input voltage drops below the output voltage (e.g., during power down). Current is conducted from
the output to the input and is not internally limited. When extended reverse voltage is anticipated, external
limiting may be appropriate.
The TPS777xx and TPS778xx also feature internal current limiting and thermal protection. During normal
operation, the TPS777xx and TPS778xx limit output current to approximately 1.7 A. When current limiting
engages, the output voltage scales back linearly until the overcurrent condition ends. While current limiting is
designed to prevent gross device failure, care should be taken not to exceed the power dissipation ratings of
the package. If the temperature of the device exceeds 150°C(typ), thermal-protection circuitry shuts it down.
Once the device has cooled below 130°C(typ), regulator operation resumes.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-407
TPS77701, TPS77715, TPS77718, TPS77725, TPS77733 WITH RESET OUTPUT
TPS77801, TPS77815, TPS77818, TPS77825, TPS77833 WITH PG OUTPUT
FAST-TRANSIENT-RESPONSE 750-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS230A - SEPTEMBER 1999 - REVISED SEPTEMBER 1999
APPLICATION INFORMATION
power dissipation and junction temperature
Specified regulator operation is assured to a junction temperature of 125°C; the maximum junction temperature
should be restricted to 125°C under normal operating conditions. This restriction limits the power dissipation
the regulator can handle in any given application. To ensure the junction temperature is within acceptable limits,
calculate the maximum allowable dissipation, PO(max), and the actual dissipation, Po, which must be less than
or equal to PO(max)'
The maximum-power-dissipation limit is determined using the following equation:
P
TJmax - TA
O(max)
= -=--:----'-'
RaJA
Where
TJmax is the maximum allowable junction temperature
RaJA is the thermal resistance junction-to-ambient for the package, i.e., 176°CIW for the 8-terminal
SOIC and 32.6°C/W for the 20-terminal PWP with no airflow.
TA is the ambient temperature.
The regulator dissipation is calculated using:
Power dissipation resulting from quiescent current is negligible. Excessive power dissipation will trigger the
thermal protection circuit.
~1EXAS
INSTRUMENTS
2-408
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
LM237, LM337
3-TERMINAL ADJUSTABLE REGULATORS
SLVS047C - NOVEMBER 1981 - REVISED JULY 1999
KCPACKAGE
(TOP VIEW)
• Output Voltage Range Adjustable From
-1.2 V to -37 V
~ OUTPUT
• Output Current Capability of 1.5 A Max
INPUT
ADJUSTMENT
• Input Regulation Typically 0.01% Per
Input-Voltage Change
The INPUT terminal is in electrical
contact with the mounting base.
• Output Regulation Typically 0.3%
T0-220AB
• Peak Output Current Constant Over
Temperature Range of Regulator
• Ripple Rejection Typically 77 dB
• Direct Replacement for National
Semiconductor LM237 and LM337
description
KTEPACKAGE
(TOP VIEW)
The LM237 and LM337 are adjustable 3-terminal
negative-voltage regulators capable of supplying
in excess of -1.5 A over an output voltage range
of -1.2 V to -37 V. They are exceptionally easy to
use, requiring only two external resistors to set the
output voltage and one output capaCitor for
frequency compensation. The current design has
been optimized for excellent regulation and low
thermal transients. In addition, the LM237 and
LM337 feature internal current limiting, thermal
shutdown, and safe-area compensation, making
them virtually immune to failure by overloads.
OUTPUT
[ [ }
INPUT
ADJUSTMENT
The INPUT terminal is in electrical contact with the mounting base.
A
The LM237 and LM337 serve a wide variety of
applications, including local on-card regulation,
programmable output-voltage regulation, and
precision current regulation.
The LM237 is characterized for operation over the
virtual junction temperature range of -25°C to
150°C. The LM337 is characterized for operation
over the virtual junction temperature range of O°C
to 125°C.
AVAILABLE OPTIONS
PACKAGED DEVICES
CHIP
FORM
(V)
TJ
HEAT-SINK MOUNTED
(KC)
PLASTIC
FLANGE MOUNTED
(KTE)
-25°C to 150°C
LM237KC
LM237KTE
-
O°C to 125°C
LM337KC
LM337KTE
LM337Y
The KTE package is only available taped and reeled. Add the R suffix to the deVice type (e.g .•
LM237KTER). Chip forms are tested at 25°C.
~TEXAS
Copyright © 1999. Texas Instruments Incorporated
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-409
LM237, LM337
3-TERMINAL ADJUSTABLE REGULATORS
SLVS047C - NOVEMBER 19B1 - REVISED JULY 1999
schematic diagram
r-~------~----~~--~--~~-----ADJUSTMENT
r-------~----~----~~_+--~--~----rF~~~_.----~_._OUTPUT
absolute maximum ratings over operating temperature ranges (unless otherwise noted)t
Input-to-output differential voltage, VI - Vo .................................................. -40 V
Package thermal impedance, 9JA (see Notes 1 and 2): KC package ........................... 22°CIW
KTE package .......................... 23°CIW
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds ............................. .. 260°C
Storage temperature range, Tstg .................................................. -65°C to 150°C
t Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions· is not
implied. Exposure to absolute-maxi mum-rated conditions for extended periods may affect deVice reliability.
NOTES: 1. Maximum power dissipation is a function of TJ(max), 9JA, and TA- The maximum allowable power dissipation at any allowable
ambient temperature is PD = (TJ(max) - TAl,9JA. Operating at the absolute maximum TJ of 150°C can impact reliability. Due to
variations in individual device electrical characteristics and thermal reSistance, the built-in thermal overload protection may be
activated at power levels slightly above or below the rated dissipation.
2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace
length of zero.
recommended operating conditions
Output current, 10
MIN
MAX
I lVI-VOl s40V,
PS15W
10
1500
I lVI-VOl S10V,
PS15W
1500
ILM237
6
-25
150
I LM337
0
125
Operating virtual junction temperature, TJ
~TEXAS
INSTRUMENTS
2-410
POST OFFICE BOX 655303 • OALLAS, TEXAS 75265
UNIT
mA
°C
LM237, LM337
3·TERMINAL ADJUSTABLE REGULATORS
SLVS047C - NOVEMBER 1981 - REVISED JULY 1999
electrical characteristics over recommended ranges of operating virtual junction temperature
(unless otherwise noted)
LM237
PARAMETER
Input regulation;
Ripple rejection
TEST CONDITIONSt
VI-VO=-3 Vto-40V
MIN
TYP
f=120Hz,
VO=-10V,
10 = 10 rnA to 1.5 A
0.01
0.02
0.01
0.04
0.05
0.02
0.07
60
50
0.5%
50
70
1%
1.5%
Output-voltage
long-term drift
After 1000 h atTJ = MAX and VI- Vo = -40 V
0.3%
Output noise
voltage
f= 10 Hz to 10 kHz,
mV
mV
0.6%
1%
1%
0.3%
0.003%
TJ = 25°C
%/V
1%
0.3%
IVOI~5V
0.6%
UNIT
dB
n
IVOI,;;5V
0.003%
IVI- VOI,;;40V
2.5
5
2.5
10
lVI-VOl,;; 10V
1.2
3
1.5
6
rnA
1.5
2.2
1.5
2.2
0.24
0.4
0.15
0.4
IVI- VOI,;;15V
IVI- VOI,;;40V,
TJ = 25°C
Adjustment-terminal
current
t
66
25
0.3%
TJ = MIN to MAX
Peak output current
60
n
66
CADJ= 1O ILF
Output-voltage
change with
temperature
Minimum output
current to maintain
regulation
MAX
0.02
IVOI~5V
Output regulation
TYP
TJ = MIN to MAX
IVOI,;;5V
10 = 10mA to 1.5A,
TJ = 25°C
MIN
TJ = 25°C
f= 120 Hz
VO=-10V,
LM337
MAX
Change in
adjustment-terminal
current
VI-VO =-2.5 V to-40 V,
10= 10 rnA to MAX
Reference voltage
(output to ADJ)
VI- VO=-3Vto-40V,
10= 10 rnA to 1.5A,
P ,;; rated dissipation
TJ = MIN to MAX
Thermal regulation
Initial TJ = 25°C,
10-mspulse
..
65
100
65
100
!LA
2
5
2
5
!LA
-1.225
-1.25
-1.275
-1.213
-1.25
-1.287
-1.2
-1.25
-1.3
-1.2
-1.25
-1.3
0.002
0.02
TJ = 25°C,
TJ = 25°C
A
V
..
0.003
..
0.04
%/W
Unless otherwise noted, these speclflcallOns apply for the follOWing test condlllOns IVI- VOl = 5 V and 10 = 0.5 A. For conditions shown as MIN
or MAX, use the appropriate value specified under recommended operating conditions. All characteristics are measured with a 0.1-ILF capacitor
across the input and a 1-ILF capacitor across the output. Pulse-testing techniques are used to maintain the junction temperature as close to the
ambient temperature as possible. Thermal effects must be taken into account separately.
=!: Input regulation is expressed here as the percentage change in output voltage per 1-V change at the input.
~TEXAS
INSTRUMENTS
POST OFFICE
sox 655303 •
DALLAS, TEXAS 75265
2-411
LM237, LM337
3-TERMINAL ADJUSTABLE REGULATORS
SLVS047C - NOVEMBER 1981 - REVISED JULY 1999
electrical characteristics, TJ =25°C
PARAMETER
Input regulation;
Ripple rejection
TEST CONDITIONSt
VI-VO=-3 Vto-40V
f= 120 Hz
VO=-10V,
VO=-10V,
10= 10 rnA to 1.5 A
Output noise voltage
f=10Hztol0kHz
Peak output current
f= 120 Hz
CADJ= 1011F,
Output regulation
Minimum output current to maintain regulation
LM237, LM337
MIN
TYP
MAX
0.01
0.04
60
66
50
0.3%
%N
dB
77
I IVOIS5V
I IVOIU v 10
PACKAGED DEVICES
VoTYP
AT
25°C
~,...-c-
1«0
v
I
- ..
0
v
TL750L08CKC
TL750L0500
I TL751L0500 I
The 0, KTE, and LP packages are available taped and reeled. The KTP is only available taped and reeled. Add R suffix to
device type (e.g., TL750L05COR). Chip forms are tested at 25°C.
absolute maximum ratings over operating junction temperature range (unless otherwise noted)t
TL750Lxx
TL751 Lxx
Continuous input voltage
Transient input voltage, TA
=25°C (see Note 1)
UNIT
26
V
60
V
Continuous reverse input voltage
-15
V
Transient reverse input voltage: t s 100 rns
-50
V
Package thermal impedance, 9JA (see Notes 2 and 3)
o package
97
KCpackage
22
LP package
156
P package
Virtual junction temperature range, TJ
Lead temperature 1,6 mm (1/16 inch) for 10 seconds
Storage temperature range, Tsta
t
°C
127
-40 to 150
°C
260
°C
-es to 150
°C
Stresses beyond those listed under"absolute maximum ratings· may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. The transient input voltage rating applies to the waveform shown in Figure 1.
2. Maximum power dissipation is a function of TJ(max), 9JA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature Is Po = (TJ(max) - TA)/9JA. Operating at the absolute maximum TJ of 150°C can impact reliability.
3. The package thermal impedance is calculated in accordance with JESO 51, except for through-hole packages, which use a trace
length of zero.
~TEXAS
INSTRUMENTS
2-422
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TL750L, TL751L SERIES
LOW-DROPOUT VOLTAGE REGULATORS
SLVSOI71- SEPTEMBER 1987 - REVISED JULY 1999
recommended operating conditions over recommended operating junction temperature range
(unless otherwise noted)
TL75xL05
MAX
6
26
TL75xLOB
9
26
TL75xL10
11
26
TL75xL12
13
26
TL751 Lxx
2
15
ITA = 25°C
TL751 Lxx
-0.3
O.B
ITA = full range=l=
TL751Lxx
-0.15
O.B
Input voltage, VI
High-level ENABLE input voltage, VIH
Low-level ENABLE input voltage, VILt
MIN
Output current range, 10
Operating virtual junction temperature, TJ
TL75xLxx
0
150
TL75xLxxC
0
125
TL75xL05Q
--40
125
UNITS
V
V
V
mA
°C
t
The algebraic convention, in which the least positive (most negative) value is designated minimum, is used in this data sheetfor ENABLE voltage
levels and temperature only.
=1= Full range is O°C to 125°C for the TL75xLxxC devices, and --40°C to 125°C for the TL75L05Q devices.
electrical characteristics, VI = 14 V, 10 = 10 mA, TJ
PARAMETER
Output voltage
Input regulation voltage
TJ = TJ(min) to 125°ClI
TYP
4.BO
5
UNIT
MAX
5.2
5.25
4.75
5
10
VI =6Vt026V
6
30
VI=BVt01BV,
10=5mAt0150mA
f=120Hz
60
65
20
0.2
10= 150mA
0.6
f=10Hzt0100kHz
500
10
VI = 6 V to 26 V,
10=10mA,
TJ = TJ(min) to 125°ClI
1
V
mV
dB
50
10= 10mA
10= 150mA
Input bias current
MIN
VI=9Vt016V
Ripple rejection
Output noise voltage
TL750L05
TL751L05
TEST CONDITIONS§
Output regulation voltage
Dropout voltage
= 25°C (unless otherwise noted) (see Note 4)
mV
V
IlV
12
2
mA
0.5
ENABLE>2V
§ Pulse-testing techmques are used to mamtain the junction temperature as close to the ambient temperature as possible. Thermal effects must
be taken into account separately. All characteristics are measured with a 0.1-IlF capacitor across the input and a 10-IlF capacitor, with equivalent
series resistance of less than 0.4 Q, across the output.
11 TJ(min) is O°C for the TL75xLxxC devices, and --40°C for the TL75xLxxQ devices.
NOTE 4: For TL750L05QfTL751 L05Q, all characteristics are measured with a 0.1-IlF tantalum capacitor on the output with equivalent series
resistance within the guidelines shown in Figure 4.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2--423
TL750L, TL751 L SERIES
LOW-DROPOUT VOLTAGE REGULATORS
SLVS0171- SEPTEMBER 1987 - REVISED JULY 1999
electrical characteristics, V,
=14 V, 10 =10 mA, TJ =25°C (unless otherwise noted)
PARAMETER
Output voltage
Input regulation voltage
TYP
MAX
7.68
8
8.32
8.4
VI=10Vt017V
10
20
VI =9Vt026V
25
50
Ripple rejection
VI=11 Vt021 V,
10=5mAt0150mA
Output noise voltage
f=120Hz
60
40
0.2
10=150mA
0.6
500
10
VI = 9Vt026V,
10=10mA,
1
TJ = O°C to 125°C
mV
V
I1V
12
2
mA
Pulse-testing techniques are used to maintain the Junction temperature as close to the ambient temperature as possible. Thermal effects must
be taken :r:tc account sapaiatafy. All chaiactsiistics ai6 measured wIth Ii O.I-.... F (;itpa(;iiul tlcruti::;, ihe inpui ana a j O-~F capaciior, wiih equivaiem
series resistance of less than 0.4 n, across the output.
electrical characteristics, V,
=14 V, 10 =10 mA, TJ =25°C (unless otherwise noted)
PARAMETER
Output voltage
Input regulation voltage
TYP
9.6
10
UNIT
MAX
10.4
10.5
VI=12Vt019V
10
25
VI=11 Vt026V
30
60
VI=12Vto22V,
10=5 mAto 150 rnA
f=120Hz
60
100
10= 10mA
0.2
10=150mA
0.6
f=10Hzt01OOkHz
700
10
VI=11 Vt026V,
10=10mA,
TJ = O°C to 125°C
1
V
mV
dB
65
50
10=150mA
Input bias current
MIN
9.5
TJ = O°C to 125°C
Ripple rejection
Output noise voltage
TL750L10
TL751L10
TEST CONDITIONSt
Output regulation voltage
Dropout voltage
mV
V
I1V
12
2
mA
0.5
ENABLE>2V
t
mV
0.5
ENABLE>2V
t
80
10=10mA
f=10Hzt0100kHz
V
dB
65
10=150mA
Input bias current
UNIT
MIN
7.6
TJ = O°C to 125°C
Output regulation voltage
Dropout voltage
TL750L08
TL751L08
TEST CONDITIONSt
Pulse-testing techniques are used to maintain the Junction temperature as close to the ambient temperature as poSSible. Thermal effects must
be taken into account separately. All characteristics are measured with a 0.1-I1F capacitor across the input and a 10-I1F capacitor, with equivalent
series resistance of less than 0.4 n, across the output.
~TEXAS
2-424
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75285
TL750L, TL751L SERIES
LOW-DROPOUT VOLTAGE REGULATORS
SLVS0171- SEPTEMBER 1987 - REVISED JULY 1999
electrical characteristics, VI
=14 V, 10 =10 rnA, TJ =25°C (unless otherwise noted)
PARAMETER
Output voltage
TL750L12
TL751L12
TEST CONDITIONSt
TJ = O°C to 125°C
Input regulation voltage
MAX
11.52
12
12.48
15
30
VI=13Vt026V
20
40
VI=13Vt023V,
10=5 rnA to 150 rnA
f= 120Hz
50
10= lOrnA
0.2
0.6
VI=13Vt026V,
700
10=10mA,
TJ = O°Cto 125°C
mV
mV
V
I1V
10
12
1
2
rnA
0.5
ENABLE>2V
Pulse-testing techmques are used to maintain the lunctlon temperature as close to the ambient temperature as possible. Thermal effects must
be taken into account separately. All characteristics are measured with a O.l-I1F capacitor across the input and a 10-I1F capacitor, with equivalent
series resistance of less than 0.4 Q, across the output.
electrical characteristics, VI
PARAMETER
=14 V, 10 =10 rnA, TJ =25°C (unless otherwise noted)
TL750L05Y
TEST CONDITIONSt
MIN
Output voltage
TYP
MAX
VI=9Vto16V
5
VI=6Vt026V
6
UNIT
V
5
Input regulation voltage
mV
Ripple rejection
VI=8Vto18V,
65
dB
Output regulation voltage
10=5mAto150mA
20
mV
Output noise voltage
1= 10 Hz to 100 kHz
500
I1V
1=120Hz
10
10=150mA
Input bias current
t
V
dB
120
10=150mA
10=150mA
t
55
50
f= 10 Hz to 100 kHz
Input bias current
12.6
VI=14Vto19V
Ripple rejection
Output noise voltage
TYP
11.4
Output regulation voltage
Dropout voltage
UNIT
MIN
VI =6 Vt026V,
rnA
1
10=10mA
Pulse-testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must
be taken into account separately. All characteristics are measured with a O.l-I1F capacitor across the input and a 10-I1F capacitor, with equivalent
series resistance 01 less than 0.4 Q, across the output.
electrical characteristics, VI
PARAMETER
=14 V, 10 =10 rnA, TJ =25°C (unless otherwise noted)
TL750L08Y
TEST CONDITIONSt
Output voltage
Input regulation voltage
MIN
TYP
8
VI=10Vto17V
10
VI=9Vt026V
25
MAX
UNIT
V
mV
Ripple rejection
VI=ll Vt021 V,
65
dB
Output regulation voltage
10=5mAto150mA
40
mV
Output noise voltage
1= 10Hzto 100kHz
500
I1V
Input bias current
1=120Hz
10
10=150mA
VI = 9 V to 26 V,
10=10mA
1
rnA
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-425
TL750L, TL751 L SERIES
LOW-DROPOUT VOLTAGE REGULATORS
SLVS017I- SEPTEMBER 1987 - REVISED JULY 1999
t
Pulse-testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must
be taken Into account separately. All characteristics are measured with a 0.1-~F capacitor across the Input and a 1O-~F capacitor, with equivalent
series resistance 01 less than 0.4 0, across the output.
electrical characteristics, VI
PARAMETER
=14 V, 10 =10 rnA, TJ =25°C (unless otherwise noted)
TEST CONDITIONSt
TL750L10Y
MIN
Output voltage
MAX
10
Input regulation voltage
VI=12Vt019V
10
VI=11Vt026V
30
1= 120 Hz
UNIT
V
mV
Ripple rejection
VI = 12Vt022 V,
65
dB
Output regulation voltage
10=5 mA to 150 mA
50
mV
Output noise voltage
1=10Hzt0100kHz
700
~V
10
10=150mA
Input bias current
t
TYP
VI = 11 Vt026 V,
mA
1
10= 10mA
Pulse-testmg techniques are used to maintain the Junction temperature as close to the ambient temperature as possible. Thermal effects must
be taken Into account separately. All characteristics are measured with a 0.1-~F capacitor across the Input and a 1O-~F capacitor, with equivalent
series resistance 01 less than 0.4 n, across the output.
electrical characteristics, VI
PARAMETER
=14 V, 10 =10 rnA, TJ =25°C (unless otherwise noted)
TEST CONDITIONSt
Output voltage
Input regulation voltage
TL750L12Y
MIN
TYP
12
VI=14Vt019V
15
VI=13Vt026V
20
UNIT
V
mV
Ripple rejection
VI=13Vt023V,
55
dB
Output regulation voltage
10 = 5 mA to 150 mA
50
mV
Output noise voltage
1=10Hzt0100kHz
700
~V
Input bias current
f= 120 Hz
MAX
10
10=150mA
VI = 13 Vt026 V,
10=10mA
1
rnA
t Pulse-testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must
be taken into account separately. All characteristics are measured with a 0.1-~F capacitor across the input and a 1O-~F capacitor, with equivalent
series resistance 01 less than 0.4 n, across the output.
-!I1TEXAS
INSTRUMENTS
2-426
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TL750L, TL751 L SERIES
LOW-DROPOUT VOLTAGE REGULATORS
SLVS0171- SEPTEMBER 1987 - REVISED JULY 1999
TYPICAL CHARACTERISTICS
TL750L05
INPUT CURRENT
TRANSIENT INPUT VOLTAGE
vs
vs
TIME
INPUT VOLTAGE
60
>
50
40
~
\
I
CD
I$!
'S
a.
.5
40
30
'E
..
35
'"
I
I'-tr=tms
20
25
'E
~~
~
'""'" ~ .........
/
20
(J
'S
a.
15
--
10
.5
r--.
-IV
30
TA=25°C
VI = 14 V + 46e(-tIO.230)
fort<:5ms
I
I
5
o
100
200
300
400
500
J
o
o
600
1/
I
I
10
o
,
2
3
4
V,- Input Voltage - V
t-TIme-ms
Figure 1
5
6
Figure 2
TL750L12
INPUT CURRENT
vs
INPUT VOLTAGE
60
50
/
<
E
I
'E
~~
(J
40
\
I
.5
20
10
o
.,/ '\
f
30
'S
a.
I
/"
o
/
2
/
4
6
8
10
12
14
VI - Input Voltage - V
Figure 3
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-427
TL750L, TL751 L SERIES
.
LOW-DROPOUT VOLTAGE REGULATORS
SLVS0171- SEPTEMBER 1987 - REVISED JULY 1999
TYPICAL CHARACTERISTICS
TL7S0LOS
EQUIVALENT SERIES RESISTANCE
vs
LOAD CURRENT
1.0
cl
= 1b.I1F tan~lum bapahitor I
'T =-jOC 1t01rC
I
I
~otenlial In~tabl ity Fteglo~
\.
....
I'-...
Feglor of est tabl Ity
I
10
80
IL - Load Current - mA
Figure 4
~TEXAS
2-428
INSTRUMENTS
POST OFFICE BOX 655S03 • DALLAS, TEXAS 75265
120
150
TL750M, TL751 M SERIES
LOW-DROPOUT VOLTAGE REGULATORS
SLVS021G - JANUARY 1988 - REVISED JULY 1999
• Very Low Dropout Voltage, Less Than 0.6 V
at 750 mA
• Low Quiescent Current
• TTL- and CMOS-Compatible Enable on
TL751M Series
•
•
•
•
60-V Load-Dump Protection
Overvoltage Protection
Internal Thermal Overload Protection
Internal Overcurrent Limiting Circuitry
description
The TL750M and TL751 M series are low-dropout positive voltage regulators specifically designed for
battery-powered systems. The TL750M and TL751M series incorporate onboard overvoltage and
current-limiting protection circuitry to protect the devices and the regulated system. Both series are fully
protected against 60-V load-dump and reverse-battery conditions. Extremely low quiescent current, even
during full-load conditions, makes the TL750M and TL751 M series ideal for standby power systems.
The TL750M and TL751M series offers 5-V, B-V, 10-V, and 12-Voptions. The TL751M series has the addition
of an enable (ENABLE) input. The ENABLE input gives the designer complete control over power up, allowing
sequential power up or emergency shutdown. When ENABLE is high, the regulator output is placed in the
high-impedance state. The ENABLE input is TTL- and CMOS-compatible.
The TL750MxxC and TL751 MxxC are characterized for operation over the virtual junction temperature range
O°C to 125°C.
AVAILABLE OPTIONS
PACKAGED DEVICES
TJ
O°C
to
125°C
)fo
TYP
(V)
HEAT·SINK
MOUNTED
(3-PIN)
(KC)
PLASnc
FLANGE
MOUNT
(KTE)
PLASTIC
FLANGE
MOUNT
(KTG)
PLASTIC
FLANGE
MOUNT
(KTP)
CHIP
FORM
(V)
5
TL750M05CKC
TL750M05CKTE
TL751 M05CKTG
TL750M05CKTP
TL750M05Y
8
TL750M08CKC
TL750M08CKTE
TL751 M08CKTG
TL750M08CKTP
TL750M08Y
10
TL750M10CKC
TL750M1OCKTE
TL751M10CKTG
TL750M10CKTP
TL750M10Y
12
TL750M12CKC
TL750M12CKTE
TL751M12CKTG
TL750M12CKTP
TL750M12Y
The KTE and KTG packages are available taped and reeled. The KTP IS only available taped and reeled. Add
the suffix R to device type (e.g., TL750M05CKTER). Chip forms are tested at 25'C.
~1EXAS
Copyright © 1999, Texas Instruments Incorporated
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-429
TL750M, TL751M SERIES
LOW-DROPOUT VOLTAGE REGULATORS
SLVS021G -JANUARY 1988- REVISED JULY 1999
TL750M . .. 3-LEAD KTE PACKAGEt
(TOP VIEW)
In:: :~:U;N
L..LF
TL750M ... 3-LEAD KC (TO-200AB) PACKAGEt
(TOP VIEW)
OUTPUT
COMMON
INPUT
TL751M ... 5-LEAD KTG PACKAGEt
(TOP VIEW)
TL750M ... KTP PACKAGEt
(TOP VIEW)
COMMON
-'
[Q}:
I
__ .J
INPUT
OUTPUT
COMMON
INPUT
t The common terminal is in electrical contact with the mounting base.
NC - No internal connection
~TEXAS
2-430
INSTRUMENTS
POST OFFICE BOX 655303 • DAlLAS. TEXAS 75265
NC
OUTPUT
COMMON
INPUT
TL750M, TL751 M SERIES
LOW-DROPOUT VOLTAGE REGULATORS
SLVS021 G - JANUARY 1988 - REVISED JULY 1999
TL751 Mxx functional block diagram
DEVICE
COMPONENT COUNT
Transistors
ENABLE---f--l
46
Diodes
14
Resistors
44
Capacitors
28V
OUT
4
JFETs
1
Tunnels
(emilterR)
2
absolute maximum ratings over virtual junction temperature range {unless otherwise noted)t
Continuous input voltage ................................................................... 26 V
Transient input voltage (see Figure 3) ....................................................... 60 V
Continuous reverse input voltage .......................................................... -15 V
Transient reverse input voltage: t 100 ms .................................................. -50 V
Package thermal impedance, 9JA (see Notes 1 and 2): KC package ........................... 22°CIW
KTE package ......................... 23°CIW
KTG package ......................... 23°CIW
KTP package ......................... 28°CIW
Virtual junction temperature range, TJ ................................................ O°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds ...... . . . . . . . . . . . . . . . . . . . . . . . .. 260°C
Storage temperature range, Tstg ................ ;................................. -65°C to 150°C
=
t
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions· is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. Maximum power dissipation is a function of T J(max), 9JA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature is Po (TJ(max) - TA)/9JA. Operating at the absolute maximum TJ of 150°C can impact reliability. Due to
variation in individual device electrical characteristics and thermal resistance, the built-in thermal overload protection may be
activated at power levelS slightly above or below the rated dissipation.
2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace
length of zero.
=
recommended operating conditions over recommended virtual junction temperature range
MIN
MAX
6
26
TL75xMOB
9
26
TL75xM10
11
26
26
TL75xM05
Input voltage range, VI
TL75xM12
13
High-level ENABLE input voltage, VIH
TL751Mxx
2
15
LOW-level ENABLE input voltage, VIL
TL751Mxx
0
O.B
·Output current range, 10
TL75xMxxC
Operating virtual junction temperature range, TJ
TL75xMxxC
0
UNIT
V
V
750
mA
125
°C
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-431
TL750M, TL751 MSERIES
LOW-DROPOUT VOLTAGE REGULATORS
SLVS021 G - JANUARY 1988 - REVISED JULY 1999
electrical characteristics, VI
=14 V, 10 =300 mA, TJ =25°C
TL751MXXX
PARAMETER
MIN
TYP
MAX
50
Response time, ENABLE to output
=
electrical characteristics, VI 14 V, 10
otherwise noted) (see Note 3)
I1S
=300 mA, ENABLE at 0 V for TL751 M05, TJ =25°C (unless
TEST CONDITIONS
PARAMETER
Output voltage
TJ = ooe to 125°e
TL750M05C,TL751M05C
MIN
TYP
MAX
4.95
5
5.05
5.1
4.9
VI=9Vto16V,
10=250 rnA
10
25
VI = 6 V to 26 V,
10=250 rnA
12
50
Ripple rejection
VI=BVto1BV,
f=120Hz
Output voltage regulation
10= 5 rnA to 750 rnA
Input voltage regulation
Dropout voltage
Output noise voitage
50
55
20
0.5
10= 750 rnA
0.6
500
60
10= 750 rnA
ENABLE VIH ~ 2 V
Bias current (TL751 M05e and TL751 M050 only)
V
mV
mV
V
ltV
75
5
10= 10 rnA
UNIT
dB
50
10=500 rnA
f= 10 Hz to 100kHz
Bias current
UNIT
200
rnA
ItA
NOTE 3: Pulse-testing techniques maintain the Junction temperature as close to the ambient temperature as possible. Thermal effects must be
taken into account separately. All characteristics are measured with a O.l-ItF capacitor across the input and a 1O-ItF tantalum capacitor
on the output, with equivalent series resistance within the guidelines shown in Figure 3.
=
electrical characteristics, VI 14 V, 10
otherwise noted) (see Note 3)
PARAMETER
Output voltage
=300 mA, ENABLE at 0 V for TL751 M08, TJ =25°C (unless
TEST CONDITIONS
TL750M08C, TL751M08C
MIN
TYP
MAX
7.92
B
B.OB
7.B4
TJ = ooe to 125°e
8.16
VI=10Vto17V,
10=250 rnA
12
40
VI = 9 V to 26 V,
10=250 rnA
15
68
Ripple rejection
VI=11Vt021V,
f=120Hz
Output voltage regulation
10= 5 mAto 750 rnA
Input voltage regulation
Dropout voltage
Output noise voltage
Bias current
80
0.5
10 = 750 rnA
0.6
f=10Hztol00kHz
10=750mA
ENABLE VIH ~ 2 V
500
60
V
mV
dB
55
24
10= 500 rnA
10=10mA
Bias current (TL751 Mxx only)
50
UNIT
mV
V
ltV
75
5
200
rnA
ItA
NOTE 3: Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be
taken into account separately. All characteristics are measured with a O.l-ItF capacitor across the input and a 1O-ItF tantalum capacitor
on the output, with equivalent series resistance within the guidelines shown in Figure 3.
~lExAs
INSTRUMENTS
2-432
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TL750M, TL751 M SERIES
LOW-DROPOUT VOLTAGE REGULATORS
SLVS021G - JANUARY 1988 - REVISED JULY 1999
=
electrical characteristics, VI 14 V, 10
otherwise noted) (see Note 3)
PARAMETER
=300 mA, ENABLE at 0 V for TL751 M1 0, TJ =25°C (unless
TEST CONDITIONS
Output voltage
TL750M10C,TL751M10C
MIN
TYP
MAX
9.9
10
10.1
9.8
TJ = O°C to 125°C
10.2
VI=12VtoI8V,
10=250mA
15
43
VI = 11 V to 26 V,
10=250mA
20
75
Ripple rejection
VI = 13Vt023V,
f= 120 Hz
Output voltage regulation
10 = 5 mA to 750 mA
Input voltage regulation
Dropout voltage
Output noise voHage
50
0.5
10=750mA
0.6
1000
60
10=750mA
200
ENABLE VIH ~ 2 V
mV
mV
V
IlV
75
5
10=10mA
Bias current (TL751 Mxx only)
V
dB
100
10=500mA
f=10Hztol00kHz
Bias current
55
30
UNIT
mA
!lA
NOTE 3: Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be
taken into account separately. All characteristics are measured with a 0.1-IlF capacitor across the input and a 10-IlF tantalum capacitor
on the output, with equivalent series resistance within the guidelines shown in Figure 3.
=
electrical characteristics, VI 14 V, 10
otherwise noted) (see Note 3)
PARAMETER
Output voHage
=300 mA, ENABLE at 0 V for TL751M12, TJ =25°C (unless
TEST CONDITIONS
TL750M12C, TL751M12C
MIN
TYP
11.88
12
11.76
TJ = O°C to 125°C
MAX
12.12
12.24
VI = 14Vto 19V,
10 =250 mA
15
43
VI=13Vt026V,
10 =250 mA
20
78
Ripple rejection
VI=13Vt023V,
f= 120Hz
Output voltage regulation
10=5 mA to 750 mA
Input voltage regulation
Dropout voltage
Output noise voltage
Bias current
Bias current (TL751 Mxx only)
50
120
10 = 500 mA
0.5
10 = 750 mA
0.6
f=10HztolookHz
10 = 750 mA
10=10mA
ENABLE VIH ~ 2 V
1000
60
V
mV
dB
55
30
UNIT
mV
V
IlV
75
5
200
mA
!lA
NOTE 3: Pulse-testing techniques maintain the Junction temperature as close to the ambient temperature as possible. Thermal effects must be
taken into account separately. All characteristics are measured with a 0.1-IlF capacitor across the input and a 10-IlF tantalum capacitor
on the output, with equivalent series resistance within the guidelines shown in Figure 3.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-433
T1750M, T1751 M SERIES
LOW-DROPOUT VOLTAGE REGULATORS
SLVS021G - JANUARY 1988 - REVISED JULY 1999
=
=
=
electrical characteristics, VI 14 V, 10 300 mA, ENABLE at 0 V, TJ 25°C (unless otherwise noted)
(see Note 3)
PARAMETER
TL750M05Y
TEST CONDITIONS
MIN
Output voltage
TYP
MAX
V
5
Input voltage regulation
VI",9Vto16V,
10 '" 250 mA
10
VI'" 6 V to 26 V,
10 = 250 mA
12
1= 120 Hz
UNIT
mV
Ripple rejection
VI =8 Vto 18 V,
55
dB
Output voltage regulation
10=5 mAto 750 mA
20
mV
Output noise voltage
1= 10Hzto 100kHz
500
Bias current
10 = 750 mA
IlV
mA
60
NOTE 3: Pulse-testing techniques maintain the Junction temperature as close to the ambient temperature as possible. Thermal effects must be
taken into account separately. All characteristics are measured with a O.l-IlF capacitor across the Input and a 1O-IlF tantalum capacitor
on the output, with equivalent series resistance within the guidelines shown in Figure 3.
=
=
=
electrical characteristics, VI 14 V, 10 300 mA, ENABLE at 0 V, TJ 25°C (unless otherwise noted)
(see Note 3)
I
nan ........... '"
......" ......II!;,I ...n
I
I
TEST CONDITIONS
TL75DMD8Y
MIN
Output voltage
Input voltage regulation
TYP
MAX
V
8
VI=10Vto17V,
10=250mA
12
VI = 9Vt026V,
10 =250 mA
15
1= 120Hz
! UNIT
mV
Ripple rejection
VI=11Vt021V,
55
dB
Output voltage regulation
10 = 5 mA to 750 mA
24
mV
Output noise voltage
1=10Hztol00kHz
500
IlV
Bias current
10= 750mA
60
mA
NOTE 3: Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be
taken into account separately. All characteristics are measured with a O.l-IlF capacitor across the input and a 1O-IlF tantalum capacitor
on the output, with equivalent series resistance within the guidelines shown in Figure 3.
=
=
=
electrical characteristics, VI 14 V, 10 300 mA, ENABLE at 0 V, TJ 25°C (unless otherwise noted)
(see Note 3)
PARAMETER
TEST CONDITIONS
Output voltage
Input voltage regulation
TL750M10Y
MIN
TYP
10
VI=12Vto18V,
10=250mA
15
VI=11Vt026V,
10=250mA
20
1= 120Hz
MAX
UNIT
V
mV
Ripple rejection
VI'" 13 Vt023 V,
55
dB
Output voltage regulation
10=5mA to 750 mA
30
mV
Output noise voltage
1=10Hzto100kHz
1000
Bias current
10= 750mA
IlV
mA
60
NOTE 3: Pulse-testing techniques maintain the Junction temperature as close to the ambient temperature as possible. Thermal effects must be
taken into account separately. All characteristics are measured with a O. l-IlF capacitor across the Input and a 1O-IlF tantalum capaCitor
on the output, with equivalent series resistance within the guidelines shown in Figure 3.
~TEXAS
2-434
INSTRUMENTS
POST OFFICE BOX 655303 • CALLAS. TEXAS 75265
TL750M, TL751M SERIES
LOW-DROPOUT VOLTAGE REGULATORS
SLVS021 G - JANUARY 1988 - REVISED JULY 1999
TL751M12Y electrical characteristics, VI
otherwise noted) (see Note 3)
=14 V, 10 =300 mA, ENABLE at 0 V, TJ =25°C (unless
PARAMETER
TEST CONDITIONS
Output voltage
Input voltage regulation
TL750M12Y
MIN
TYP
12
VI=14Vt019V,
10 =250 mA
15
VI = 13 Vt026 V,
10= 250 mA
20
f= 120Hz
MAX
UNIT
V
mV
Ripple rejection
VI = 13 Vt023 V,
55
dB
Output voltage regulation
10 =5 mA to 750 mA
30
mV
Output noise voltage
f = 10 Hz to 100 kHz
1000
~V
Bias current
10 = 750 mA
60
mA
NOTE 3: Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be
taken into account separately. All characteristics are measured with a 0.1-~F capacitor across the Input and a 1O-~F tantalum capacitor
on the output, with equivalent series resistance within the guidelines shown in Figure 3.
PARAMETER MEASUREMENT INFORMATION
The TL751 Mxx is a low-dropout regulator. This means that the capacitance loading is important to the performance
of the regulator because it is a vital part of the control loop. The capacitor value and the equivalent series resistance
(ESR) both affect the control loop and must be defined for the load range and the temperature range. Figures 1 and 2
can establish the capacitance value and ESR range for the best regulator performance.
Figure 1 shows the recommended range of ESR for a given load with a 10-IlF capacitor on the output. This figure
also shows a maximum ESR limit of 2 n and a load-dependent minimum ESR limit.
For applications with varying loads, the lightest load condition should be chosen since it is the worst case. Figure 2
shows the relationship of the reciprocal of ESR to the square root of the capacitance with a minimum capacitance
limit of 10 IlF and a maximum ESR limit of 2 n This figure establishes the amount that the minimum ESR limit shown
in Figure 1 can be adjusted for different capaCitor values. For example, where the minimum load needed is 200 mA,
Figure 2 suggests an ESR range of 0.8 n to 2 n for 10 IlF. Figure 2 shows that changing the capaCitor from 10 IlF
to 400 IlF can change the ESR minimum by greater than 3/0.5 (or 6). Therefore, the new minimum ESR value is 0.8/6
(or 0.13 n ). This now allows an ESR range of 0.13 n to 2 n , achieving an expanded ESR range by using a larger
capaCitor at the output. For better stability in low-current applications, a small resistance placed in series with the
capacitor (see Table 1) is recommended, so that ESRs better approximate those shown in Figures 1 and 2.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-435
TL750M, TL751M SERIES
LOW-DROPOUT VOLTAGE REGULATORS
SLVS021G - JANUARY 1988 - REVISED JULY 1999
PARAMETER MEASUREMENT INFORMATION
Table 1. Compensation for Increased Stability at Low Currents
MANUFActURER
PART NUMBER
ADDITIONAL
RESISTANCE
CAPACITANCE
ESRTYP
AVX
1511F
0.9n
TAJB156M010S
1n
KEMET
3311F
0.6n
T491 D336M01 OAS
0.5n
=-=.-----..LJ
Applied Load
Current
Load
Voltage
OUTPUT CAPACITOR
STABILITY
EQUIVALENT SERIES RESISTANCE (ESR)
V!!
LOAD CURRENT RANGE
a
I
~
~
§
I.;
~
1!!
1
::J
tB'
'IS
EQUIVALENT SERIES RESISTANCE (ESR)
3
2.8
2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0.1
0.2
0.3
0.4
0.5
Figure 1
2
2.5
Figure 2
~1ExAs
2-436
1.5
1/ESR
IL - Load Current Range - A
INSTRUMENTS
POST OFFICE BOX 655:303 • DALLAS. TEXAS 75265
3
3.5
4
4.5
5
TL750M, TL751M SERIES
LOW-DROPOUT VOLTAGE REGULATORS
SLVS021 G - JANUARY 1988 - REVISED JULY 1999
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
Load transient response
3
4
S
6
7
8
9
Line transient response
10
Transient input voltage vs Time
Output voltage vs Input voltage
Input current vs Input voltage
110= 10mA
110= 100mA
Dropout voltage vs Output current
Quiescent current vs Output current
OUTPUT VOLTAGE
vs
INPUT VOLTAGE
TRANSIENT INPUT VOLTAGE
vs
TIME
60
>
50
I
CD
J
~
.5
'E
30
.;J
C
III
F-
2~oC
~
\
--
~
I
>-
"""
tr = I ms
>
100
200
TL7SxM12
10
~
8
5
6
TL7SxM08
~
~ ........
300
400
--500
.e:::I
0
I
~
600
l/f
1/1
/ 11
TL7SXj10
I
CD
Cl
10
o
I
II
10= 10 mA
12 _ TJ =2SoC
"-
20
o
1
TJ =
VI = 14 V + 46e(-tlO.230)
fort
1111
1111
.5
CII
i - I- i::lEI -
iiIII
III
~~- ~- !:i....
I
J
150
4
6
8
10
VI- Input Voltage - V
12
100
14
vs
a.
125
e
Q
100
75
TJ = 25°C
VI = 14 V
-/
-/
50
o
10
c(
E
8
~~
CJ
C
6
3
-/
Xl
'5
0
-/
4
I
2
100
150
200
10 - Output Current - mA
250
300
- -~~
9
o
50
j
I
C
-/
--
o
20
~
~TEXAS
INSTRUMENTS
POST OFFICE
sox 655303 •
DALLAS. TEXAS 75265
./
l
40
60
80
100 150
10 - Output Current - mA
FigureS
Figure 7
2-438
14
12
I
TJ = 25°C
aI
'S0
12
QUIESCENT CURRENT
OUTPUT CURRENT
175
~
1111
I I I I I
4
6
8
10
VI-Input Voltage - V
2
OUTPUT CURRENT
200
150
i
~- t-!:i
....
!:i-~
....
vs
E
S
1111
_CII
Figure 6
225
I
III
1111
III
III
0
DROPOUT VOLTAGE
>
::IE
I
Figure 5
250
~-
'j
I
=
5:1
2
:g::iE1
CJ
'S
a.
V
1/
I
I
60
=
E
I
80
.5
I
c(
I
C
I
10= 100 mA
300 _ TJ=25°C
I
250
350
TL750M, TL751 M SERIES
LOW-DROPOUT VOLTAGE REGULATORS
SLVS021G - JANUARY 1988 - REVISED JULY 1999
TYPICAL CHARACTERISTICS
,
>
E
LOAD TRANSIENT RESPONSE
I
ell
~
:i
So
:::I
0
LINE TRANSIENT RESPONSE
200
100
0
\
,
'\j
-100
I
_I
I
I
I
VI(NOM) = VO + 1 V
ESR=2
IL = 20 mA
CL= 10 ILF
TJ = 25°C
~
VI(NOM) = VO + 1 V
~ -200 I - - - ESR=2
c(
E
I
C
~
:::I
(.)
:i
;-
0
CL= 1O ILF
150 I - - - TJ = 25°C
f-100
>
I
r-- -
&
! >
~ is
50
'!i
a,
.5
0
I
Z
I
9
>:
...
o
'>
50
100 150 200
t- Time-lIS
250
300
350
o
20
Figure 9
40
60
80 100
t-TIme-1IS
150
250
350
Figure 10
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-439
2-440
TL780 SERIES
POSITIVE·VOLTAGE REGULATORS
SLVS055E - APRIL 1981 -
1999
• Internal Short·Circult Current Limiting
• Pinout Identical to IlA7800 Series
• Improved Version of !!A7800 Series
• ±1% Output Tolerance at 25°C
• ±2% Output Tolerance Over Full Operating
Range
• Thermal Shutdown
description
Each fixed-voltage precision regulator in the TL780 series is capable of supplying 1.5 A of load current. A unique
temperature-compensation technique coupled with an intemally trimmed band-gap reference has resulted in
improved accuracy when compared to other three-terminal regulators. Advanced layout techniques provide
excellent line, load, and thermal regulation. The internal current-limiting and thermal-shutdown features make
the devices essentially immune to overload.
The TL780-xxC series regulators are characterized for operation over the virtual junction temperature range
of O°C to 125°C.
KTEPACKAGE
(TOP VIEW)
KCPACKAGE
(TOP VIEW)
OUTPUT
COMMON
INPUT
OUTPUT
COMMON
INPUT
The COMMON terminal is in electrical
contact with the mounting base.
The COMMON terminal is in electrical
contact with the mounting base.
AVAILABLE OPTIONS
PACKAGED DEVICES
TJ
VOTYP
(V)
O°C to 125°C
15
CHIP
HEAT-SINK MOUNTED
(KC)
PLASTIC
FLANGE MOUNTED
(KTE)
~ORM
(V)
5
TL780-05CKC
TL780-05CKTE
TL780-05Y
12
TL780-12CKC
TL780-12CKTE
TL780-12Y
TL780-15CKC
TL780-15CKTE
TL780-15Y
The KTE package Is available taped and reeled. Add the suffix R to the device type (e.g.,
TL780-05CKTER). Chip forms are tested at 25°C.
~TEXAS
Copyright © 1999, Texas Instruments Incorporated
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-441
TL780 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS055E-APRIL 1981- REVISED JULY 1999
schematic
r-~--------------~~--~----------------'---~--------'-INPUT
'---+--------1~----1t--
'---~--~--
__--~----~~~----~~----1~~------~----------COMMON
~1ExAs
2-442
OUTPUT
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS, TEXAS 75265
TL780 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS055E - APRIL 1981 - REVISED JULY 1999
absolute maximum ratings over operating temperature range (unless otherwise noted)t
Input voltage, VI .......................................................................... 35 V
Package thermal impedance, 9JA (see Notes 1 and 2): DBV package . . . . . . . . . . . . . . . . . . . . . . . . .. 23°C/W
KC package ........................... 22°C/W
Operating free-air, TA, case, T C, or virtual junction, T J, temperature range ................. O°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds ............................... 260°C
Storage temperature range, Tstg •••••••.•••.....••.•••....•••.•..•.••....•••.•••.. -65°C to 150°C
t
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage tothe device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. Maximum power dissipation is a function of TJ(max), 9JA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature is PD = (TJ(max) - TA)/9JA. Operating at the absolute maximum TJ of 150°C can impact reliability. Due to
variations in individual device electrical characteristics and thermal resistance, the built-in thermal overload protection may be
activated at power levels slightly above or below the rated dissipation.
2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace
length of zero.
recommended operating conditions
MIN
MAX
7
25
TL780-12C
14.5
30
TL780-15C
17.5
30
1.5
A
0
125
°c
TL780-05C
Input voltage, VI
Output current, 10
Operating virtual junction temperature, T J
electrical characteristics at specified virtual junction temperature, VI
otherwise noted)
PARAMETER
Output voHage
Input voltage regulation
Ripple rejection
Output voltage regulation
10=5mAtolA,
VI =7Vt020V
TJ*
MIN
TYP
MAX
25°C
4.95
5
5.05
O°C to 125°C
4.9
PS:15W,
VI =7Vt025V
25°C
VI=8VtoI2V
VI =8 Vto 18 V,
f=120Hz
O°C to 125°C
10 = 5 mA to 1.5 A
25°C
10 = 250 mA to 750 mA
70
5.1
0.5
5
0.5
5
85
25
1.5
15
1= 1 kHz
O°C to 125°C
0.0035
Temperature coefficient 01 output voltage
10=5mA
O°C to 125°C
0.25
Output noise voltage
f= 10 Hz to 100 kHz
25°C
75
Dropout voltage
10=1 A
25°C
2
25°C
5
Input bias-current change
VI =7Vt025V
10=5mAtolA
O°C to 125°C
UNIT
V
mV
dB
4
Output resistance
Input bias current
V
=10 V, 10 =500 mA (unless
TL780-05C
TEST CONDITIONS
UNIT
mV
Q
mVrC
ltV
V
8
0.7
1.3
0.003
0.5
mA
mA
Short-circuit output current
25°C
750
mA
Peak output current
25°C
2.2
A
:j: Pulse-testIng techmques maIntaIn the JunctIon temperature as close to the ambIent temperature as pOSSIble. Thermal effects must be taken Into
account separately. All characteristics are measured with a 0.33-ItF capaCitor across the input and a 0.22-ItF capacitor across the output.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-443
TL780 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS055E-APRIL 1981 - REVISED JULY 1999
electrical characteristics at specified virtual junction temperature, VI
otherwise noted)
PARAMETER
Input voltage regulation
Ripple rejection
TJt
MIN
TYP
25°C
11.88
12
O°Cto 125°C
11.76
PS15W,
VI = 14.5 Vt030V
25°C
VI=16Vt022V
VI=15Vt025V,
Output voltage regulation
Tl780-12C
TEST CONDITIONS
10=5mAt01 A,
VI=14.5Vt027V
Output voltage
1= 120 Hz
O°Cto 125°C
10= 5 rnA to 1.5 A
65
25°C
10 = 250 rnA to 750 rnA
MAX
12.12
12.24
1.2
12
1.2
12
80
UNIT
V
mV
dB
6.5
60
2.5
36
mV
Output resistance
1= 1 kHz
O°C to 125°C
0.0035
Temperature coefficient 01 output voltage
10=5mA
O°Cto 125°C
0.6
mV/"C
Output noise voltage
1=10Hzt0100kHz
25°C
180
~V
Dropout voltage
10=1 A
25°C
2
25°C
5.5
Input bias current
1__ ........ ; ............... __ ...... Lo. ... _ _ _
IIII-'UL Ulgo-"'UII GilL "'llall~O
VI = 14.5 Vt030V
--- - --
~
10=5mAt01 A
t
=19 V, 10 =500 mA (unless
coe to 125°C
()
V
8
0.4
1.3
0.03
0.5
rnA
rnA
Short-circuit output current
25°C
350
rnA
Peak output current
25°C
2.2
A
Pulse-testing techniques maintain the Junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into
account separately. All characteristics are measured with a O.33-~F capacitor across the input and a 0.22-~F capacitor across the output.
electrical characteristics at specified virtual Junction temperature, VI = 23 V, 10 = 500 mA (unless
otherwise noted)
PARAMETER
Output voltage
Input voltage regulation
Ripple rejection
Output voltage regulation
TL780-15C
TEST CONDITIONS
10 = 5 rnA to 1 A,
VI=17.5Vt03OV
TJt
PS15W,
25°C
O°C to 125°C
VI=17.5Vt030V
TYP
MAX
14.85
15
15.15
14.7
25°C
VI = 20 V to 26 V
VI = 18.5 V to 28.5 V,
MIN
1=120Hz
O°C to 125°C
10 = 5 rnA to 1.5 A
25°C
10 = 250 rnA to 750 rnA
60
15.3
1.5
15
1.5
15
75
UNIT
V
mV
dB
7
75
2.5
45
mV
Output resistance
1 = 1 kHz
O°C to 125°C
0.0035
Temperature coefficient 01 output voltage
10=5mA
O°C to 125°C
0.62
mV/"C
Output noise voltage
1=10Hzt0100kHz
25°C
225
~V
Dropout voltage
10=1 A
25°C
2
25°C
5.5
Input bias current
Input bias-current change
VI=17.5Vt03OV
O°C to 125°C
10=5mAt01A
()
V
8
0.4
1.3
0.02
0.5
rnA
rnA
Short-circuit output current
25°C
230
rnA
Peak output current
25°C
2.2
A
t Pulse-testing techniques maintain the Junction temperature as close to the ambient temperature as pOSSible. Thermal effects must be taken Into
account separately. All characteristics are measured with a O.33-J.LF capacitor across the input and a O.22-J.LF capacitor across the output.
~TEXAS
2-444
.
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TL780 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS055E-APRIL 1981 - REVISED JULY 1999
electrical characteristics, VI = 10 V,le = 500 mA, TJ = 25°C (unless otherwise noted)
PARAMETER
Output voltage
TL780-05Y
TEST CONDITIONSt
10=5mAtol A,
Input voltage regulation
MIN
PS15W
0.5
VI=8Vto12V
0.5
1.5
Output noise voltage
f=10Hztol00kHz
75
Dropout voltage
10=1 A
Short-cIrcuit output current
Peak output current
UNIT
V
mV
4
10 = 250 mA to 750 mA
Input bias current
t
MAX
5
VI =7Vt025V
10=5 mAto 1.5A
Output voltage regulation
TYP
mV
I1V
2
V
5
mA
750
mA
2.2
A
Pulse-testing techniques maintain the Junction temperature as close to the ambient temperature as pOSSible. Thermal effects must be taken Into
account separately. All characteristics are measured with a O.33-I1F capaCitor across the input and a 0.22-I1F capacitor across the output.
electrical characteristics, VI = 19 V,le = 500 mA, TJ = 25°C (unless otherwise noted)
PARAMETER
Output voltage
TL780-12Y
TEST CONDITIONSt
10=5 mAto 1 A,
TYP
12
VI = 14.5 Vto 30 V
1.2
VI=16Vt022V
1.2
10=5 mA to 1.5A
6.5
10 = 250 rnA to 750 mA
2.5
Output noise voltage
f=10Hztol00kHz
180
Dropout voltage
10=lA
Input voltage regulation
Output voltage regulation
Input bias current
Short-circuit output current
Peak output current
t
PS15W
MIN
2
MAX
UNIT
V
mV
mV
I1V
V
5.5
mA
350
mA
2.2
A
Pulse-testing tachnlques maintain the Junction temperature as close to the ambient temperature as poSSible. Thermal effects must be taken Into
account separately. All characteristics are measured with a O.33-I1F capacitor across the input and a 0.22-I1F capacHor across the output.
~1ExAs
INSTRUMENTS
POST OFFICE BOX 665303 • DALLAS, TEXAS 75265
2-445
TL780 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS055E - APRIL 1981 - REVISED JULY 1999
electrical characteristics, VI
= 23 V, 10 = 500 mA, TJ = 25°C (unless otherwise noted)
TL780·15Y
PARAMETER
TEST CONDITIONSt
Output voltage
10=5mAt01 A,
Input voltage regulation
MIN
PS15W
15
VI=17.5Vt030V
1.5
VI = 20V to 26 V
1.5
7
10=5 mAto 1.5A
Output voltage regulation
TYP
10 = 250 mA to 750 mA
Output resistance
f=1kHz
Output noise voltage
f=10Hzt0100kHz
Dropout voltage
10=1 A
2.5
0.0035
225
2
Input bias current
. Short-circuit output current
Peak output current
MAX
UNIT
V
mV
mV
g
I1V
V
5.5
mA
230
mA
2.2
A
t Pulse-testing techniques maintain the lunctlon temperature as close to the ambient temperature as possible. Thermal effects must be taken into
account separately. All characteristics are measured with a O.33-I1F capacitor across the input and a 0.22-I1F capacitor across the output.
PARAMETER MEASUREMENT INFORMATION
INPUT
TL780
C1 =O.33I1F
(see Note A)
T
-=
OUTPUT
0
-=
(see Nola C)
T
NOTES: A. C1 is required when the regulator is far from the power supply filter.
B. C2 is not required for stability; however, transient response Is improved.
C. Permanent damage can occur when output is pulled below ground.
Figure 1_ Test Circuit
2-446
-!!11ExAs
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 752115
C2=O.22I1F
(see Note B)
TL780 SERIES
POSITIVE·VOLTAGE REGULATORS
SLVS055E - APRIL 1981 - REVISED JULY 1999
APPLICATION INFORMATION
INPUT -
......---1
R1
+ _ _!!!In--l
'----.L...-4I...- OUTPUT
-+
10
VI
10
Figure 2. Positive Regulator in Negative
Configuration (VI Must Float)
=(VO/R1) + 10 Bias Current
Figure 3. Current Regulator
operation with a load common to a voltage of opposite polarity
In many cases, a regulator powers a load that is not connected to ground but instead is connected to a voltage
source of oppOSite polarity (e.g., operational amplifiers, level-shifting circuits, etc.). In these cases, a clamp
diode should be connected to the regulator output as shown in Figure 4. This protects the regulator from output
polarity reversals during startup and short·circuit operation.
VI
-VO
Figure 4. Output Polarlty-Reversal-Protection Circuit
reverse-bias protection
OccaSionally, the input voltage to the regulator can collapse faster than the output voltage. This, for example,
could occur when the input supply is crowbarred during an output overvoltage condition. If the output voltage
is greater than approximately 7 V, the emitter-base junction of the series pass element (internal or external)
could break down and be damaged. To prevent this, a diode shunt can be employed, as shown in Figure 5.
VI
Figure 5. Reverse-Bias-Protection Circuit
"!!1TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-447
2-448
TL783
HIGH-VOLTAGE ADJUSTABLE REGULATOR
KCPACKAGE
(TOP VIEW)
• Output Adjustable From 1.25 V to 125 V
When Used With an External Resistor
Divider
• 700-mA Output Current
• Full Short-Circuit, Safe-Operating-Area, and
Thermal-Shutdown Protection
• 0.001%N Typical Input Voltage Regulation
• 0.15% Typical Output Voltage Regulation
• 76-dB Typical Ripple Rejection
• Standard TO-220AB Package
@....I1i...-......l5 ~gJ
The OUT terminal is in electrical
contact with the mounting base.
TQ-220AB
A
description
The TL783 is an adjustable three-terminal
high-voltage regulator with an output range of
1.25 V to 125 V and a DMOS output transistor
capable of sourcing more than 700 rnA. It is
designed for use in high-voltage applications where standard bipolar regulators cannot be used. Excellent
performance specifications, superior to those of most bipolar regulators, are achieved through circuit design
and advanced layout techniques.
As a state-of-the-art regulator, the TL783 combines standard bipolar circuitry with high-voltage double-diffused
MOS transistors on one chip to yield a device capable of withstanding voltages far higher than standard bipolar
integrated circuits. Because of its lack of secondary-breakdown and thermal-runaway characteristics usually
associated with bipolar outputs, the TL783 maintains full overload protection while operating at up to 125 V from
input to output. Other features of the device include current limiting, safe-operatIng-area (SOA) protection, and
thermal shutdown. Even if ADJ is inadvertently disconnected, the protection circuitry remains functional.
Only two external resistors are required to program the output voltage. An input bypass capacitor is necessary
only when the regulator is situated far from the input filter. An output capacitor, although not required, improves
transient response and protection from instantaneous output short circuits. Excellent ripple rejection can be
achieved without a bypass capacitor at the adjustment terminal.
The TL783C is characterized for operation over the virtual junction temperature range of O°C to 125°C.
AVAILABLE OPTIONS
PACKAGED DEVICE
HEAT-8INK
MOUNTED
(KC)
TJ
DoC to 125°C
TL783CKC
CHIP
FORM
(V)
TL783Y
Chip forms are tested at 25°C.
~TEXAS
Copyright © 1999, Texas Instruments Incorporated
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-449
TL783
HIGH-VOLTAGE ADJUSTABLE REGULATOR
SLVS036D - SEPTEMBER 1981 - REVISED AUGUST 1999
functional block diagram
L-~--------------4----------4~~~----.r----~----VO
OUT
Vref
R1
ADJ
R2
absolute maximum ratings over operating temperature range {unless otherwise noted)t
Input-to-output differential voltage, VI- Vo .................................................. 125 V
Operating free-air, TA, case, TC, or virtual junction, TJ, temperature range ................. O°C to 150°C
Package thermal impedance, 9JA (see Notes 1 and 2) •...................................... 22°CIW
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds ............................... 260°C
t
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those Indicated under "recommended operating conditions" Is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. Maximum power dissipation is a function of TJ(max), 9JA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature is PD = (TJ(max) - TA)/9JA. Operating at the absolute maximum TJ of 150·C can impact reliability. Due to
variations in individual device electrical characteristics and thermal reSistance, the built-in thermal overload protection may be
activated at power levels slightly above or below the rated dissipation.
2. The package thermal Impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace
length of zero.
recommended operating conditions
MIN
Output current, 10
Operating virtual junction temperature, TJ
ITL783C
~TEXAS
INSTRUMENTS
2-450
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
MAX
UNIT
125
V
15
700
mA
0
125
·C
Input-to-output voltage differential, VI - Vo
TL783
HIGH-VOLTAGE ADJUSTABLE REGULATOR
SLVS036D- SEPTEMBER 1981- REVISED AUGUST 1999
electrical characteristics at V,- Vo
=25 V, 10 =0.5 A, TJ =O°C to 125°C (unless otherwise noted)
PARAMETER
TL783C
TEST CONDITIONSt
Input voltage
regulation;
VI- Vo = 20 V to 125 V,
P S rated dissipation
Ripple rejection
t.VIIPPl = 10 V,
VO=10V,
10 = 15 mA to 700 mA,
Output voltage
regulation
10 = 15 mA to 700 mA,
TYP
MAX
TJ = 25°C
0.001
0.Q1
TJ = O°C to 125°C
0.004
0.02
MIN
f=120Hz
TJ = 25°C
P s rated dissipation
66
%N
dB
VOS5V
7.5
25
0.5%
VO;;'5V
0.15%
VOS5V
20
70
VO;;,5V
0.3%
1.5%
Output voltage change
with temperature
mV
mV
0.4%
Output voltage
long-term drift
1000 hours atTJ = 125°C,
VI- VO=125V
Output noise voltage
f=10Hzt010kHz,
TJ = 25°C
Minimum
output current to
maintain regulation
VI-VO= 125 V
Peak output current
76
UNIT
0.2%
0.003%
15
VI- VO=25V,
t= 1 ms
VI- VO=15V,
t=30ms
VI- VO=25V,
t=30ms
700
900
VI- VO=125V,
t=30ms
100
250
mA
1100
715
ADJ input current
Change in
ADJ input current
VI- Vo = 15 V to 125 V,
10 = 15 mA to 700 rnA,
P S rated dissipation
Reference voltage
(OUTtoADJ)
VI-VO= 10Vto 125 V,
See Note 3
10 = 15 mA to 700 mA,
P s rated dissipation,
1.2
mA
83
110
!lA
0.5
5
!lA
1.27
1.3
V
t Pulse-testing techniques maintain the Junction temperature as close to the ambient temperature as poSSible. Thermal effects must be taken Into
account separately.
; input voltage regulation is expressed here as the percentage change in output voltage per 1-V change at the input.
NOTE 3: Due to the dropout voltage and output current-limiting characteristics of this device, output current is limited to less than 700 mA at
input-to-output voltage differentials of less than 25 V.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 •
DALLAS. TEXAS 75265
2-451
TL783
HIGH-VOLTAGE ADJUSTABLE REGULATOR
SLVS036D - SEPTEMBER 1981 - REVISED AUGUST 1999
electrical characteristics at VI - Vo =25 V, 10 =0.5 A, TJ =25°C (unless otherwise noted)
TL783Y
PARAMETER
TEST CONDITIONSt
Input voltage
regulation;
VI- VO=20Vt0125V,
P S rated dissipation
Ripple rejection
aVI(pp)=10V,
VO=10V,
10= 15 mAto 700 mA
Output voltage
regulation
10 = 15 mA to 700 mA,
P S rated dissipation
MIN
0.001
Peak output current
MAX
UNIT
%N
f=120Hz
76
dB
VOS5V
7.5
mV
VO~5V
0.15%
VOS5V
20
VO;,,5V
0.3%
Output voltage change
with temperature
Output noise voltage
TYP
mV
0.4%
f= 10 Hz to 10kHz
0.003%
VI-VO = 25 V,
t=1 ms
1100
VI-VO= 15V,
t=30ms
715
VI- VO=25V,
t=30ms
900
VI- VO=125V,
t=30ms
250
ADJ input current
Change in
ADJ input current
VI- VO=15Vt0125V,
10 = 15 mA to 700 mA,
P S rated dissipation
Reference voltage
(OUTtoADJ)
VI-VO= 10Vto 125 V,
See Note 3
10 = 15 mA to 700 mA,
P S rated dissipation,
mA
83
I1A
0.5
I1A
1.27
V
t Pulse-testing techniques maintain the lunctlon temperature as close to the ambient temperature as possible. Thermal effects must be taken Into·
account separately.
; Input voltage regulation Is expressed here as the percentage change in output voltage per 1-V change althe input.
NOTE 3: Due to the dropout voltage and output current-limiting characteristics of this device, output current is limited to less than 700 mA at
input-to-output voltage differentials of less than 25 V.
~TEXAS
INSTRUMENTS
2-452
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TL783
HIGH-VOLTAGE ADJUSTABLE REGULATOR
SLVS036D - SEPTEMBER 1981 - REVISED AUGUST 1999
TYPICAL CHARACTERISTICS
OUTPUT CURRENT LIMIT
OUTPUT CURRENT LIMIT
vs
vs
INPUT-TO-OUTPUT VOLTAGE DIFFERENTIAL
INPUT-TO-OUTPUT VOLTAGE DIFFERENTIAL
2r-----r-----r-----~--~----~
2r-----r-----~--~~--~r---~
1.8
1.8
1.61_---1---1---1----1---1
1.6 I------t+-.---I_--I_--I---I
lo=15mA
1.28
~
1.27
I
I
i
>
rJ'
VI~20~
1.29
I
t
I
1.30
-""""
.....-
1.26
1.25
1.24
10-3
1.23
107
1.22
-75 -SO -25
0
25
50
75 100 125 150 175
TJ - Virtual Junction Temperature - °C
f - Frequency - kHz
Figure 7
Figure 8
t Data at high and low temperatures are applicable only wHhin the recommended operating free-air temperature ranges of the various devices.
~TEXAS
2-454
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TL783
HIGH·VOLTAGE ADJUSTABLE REGULATOR
SLVS036D - SEPTEMBER 1981 - REVISED AUGUST 1999
TYPICAL CHARACTERISTICS
DROPOUT VOLTAGE
INPUT CURRENT AT ADJ
vs
vs
VIRTUAL JUNCTION TEMPERATURE
VIRTUAL JUNCTION TEMPERATURE
25
90
88
/"
cc
/
V
::!.
I
C
~
:::I
86
(,)
'S
Do
.5
84
d
/
CC
82
80
V
/
20
/'
>
.,/
I
CD
1:11
:ll!
~
'S
0
Do
e
15
~
10 =700 mA
10 =600 mA
10 I-- 10 = 500 mA
Q
10 =250 mA
5 1--10 = 100 mA
V
o
tNo = 100 mV
V
VI=25V
Vo = Vref
10 =500 mA
--
l::::
7 V
~V
t::::::
f-::: ~
-
l--~
Ir15jA
25
50
75
100
o
-75
125
-50
-25
0
25
50
75
100
125
TJ - Virtual Junction Temperature - °C
TJ - Virtual Junction Temperature - °C
Figure 9
Figure 10
OUTPUT CURRENTT
OUTPUT VOLTAGE DEVIATION
vs
vs
INPUT VOLTAGE
VIRTUAL JUNCTION TEMPERATURE
12
0
'#.
I
c
I
CD
VI=25V
VO=5V
10 = 15 mAto700 mA
-0.1
t--.. ...............
-0.2
I
!
0
cc
..........
-0.3
I
>0 -0.4
i
,
>
I
LINE TRANSIENT RESPONSE
I
c
,I
TJ = 25°C
~
LOAD TRANSIENT RESPONSE
c
6
CD
4
~ 0.2
~
2
~
~
CD
.r-CO=O
0.4
'S
0
0
I
CD
:!l!
~
'S
D-
.5
.5
CD
CI
c
III
.c
0
0
~
0-0·2
>
'S
between OUT and ADJ. This
voltage is developed across R1 and causes a constant current to flow through R1 and the programming resistor R2,
giving an output voltage of:
Va =Vref (1 + R21R1) + II(ADJ) (R2)
or
Va'" Vref (1 + R2IR1)
The TL783 was designed to minimize the input current at ADJ and maintain consistency over line and load variations,
thereby minimizing the associated (R2) error term.
To maintain II(ADJ) at a low level, all quiescent operating current is returned to the output terminal. This quiescent
current must be sunk by the external load and is the minimum load current necessary to prevent the output from rising.
The recommended R1 value of 82 n provides a minimum load current of 15 mAo Larger values can be used when
the input-to-output differential voltage is less than 125 V (see output-current curve, Figure 14) or when the load sinks
some portion of the minimum current.
~TEXAS
INSTRUMENTS
2-456
POST OFFICE sox 655303 • DALLAS, TEXAS 75265
TL783
HIGH-VOLTAGE ADJUSTABLE REGULATOR
SLVS036D-SEPTEMBER 1981- REVISED AUGUST 1999
DESIGN CONSIDERATIONS
bypass capacitors
The TL783 regulator is stable without bypass capacitors; however, any regulator becomes unstable with certain
values of output capacitance if an input capacitor is not used. Therefore, the use of input bypassing is
recommended whenever the regulator is located more than four inches from the power-supply filter capacitor.
A 1-IlF tantalum or aluminum electrolytic capacitor usually is sufficient.
Adjustment-terminal capacitors are not recommended for use on the TL783 because they can seriously
degrade load transient response as well as create a need for extra protection circuitry. Excellent ripple rejection
is presently achieved without this added capacitor.
Due to the relatively low gain of the MOS output stage, output voltage dropout may occur under large load
transient conditions. The addition of an output bypass capacitor greatly enhances load transient response as
well as prevents dropout. For most applications, it is recommended that an output bypass capacitor be used,
with a minimum value of:
Co (IlF) = 15NO
Larger values provide proportionally better transient-response characteristics.
protection circuitry
The TL783 regulator includes built-in protection circuits capable of guarding the device against most overload
conditions encountered in normal operation. These protective features are current limiting, safe-operating-area
protection, and thermal shutdown. These circuits protect the device under occasional fault conditions only.
Continuous operation in the current limit or thermal shutdown mode is not recommended.
The internal protection circuits of the TL783 protect the device up to maximum-rated VI as long as certain
precautions are taken. If VI is instantaneously switched on, transients exceeding maximum input ratings may
occur, which can destroy the regulator. These are usually caused by lead inductance and bypass capacitors
causing a ringing voltage on the input. In addition, when rise times in excess of 10 V/ns are applied to the input,
a parasitic npn transistor in parallel with the DMOS output can be turned on, causing the device to fail. If the
device is operated over 50 V and the input is switched on rather than ramped on, a low-Q capacitor, such as
tantalum or aluminum electrolytic should be used rather than ceramic, paper, or plastic bypass capacitors. A
Q factor of 0.015 or greater usually provides adequate damping to suppress ringing. Normally, no problems
occur if the input voltage is allowed to ramp upward through the action of an ac line rectifier and filter network.
Similarly, when an instantaneous short circuit is applied to the output, both ringing and excessive fall times can
result. A tantalum or aluminum electrolytic bypass capacitor is recommended to eliminate this problem.
However, if a large output capacitor is used and the input is shorted, addition of a protection diode may be
necessary to prevent capaCitor discharge through the regulator. The amount of discharge current delivered is
dependent on output voltage, size of capacitor, and fall time of VI' A protective diode (see Figure 17) is required
only for capacitance values greater than:
Co (IlF)
=3 x 104/(VO)2
Care always should be taken to prevent insertion of regulators into a socket with power on. Power should be
turned off before removing or inserting regulators.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-457
TL783
HIGH-VOLTAGE ADJUSTABLE REGULATOR
SLVS0360 - SEPTEMBER 1981 - REVISED AUGUST 1999
DESIGN CONSIDERATIONS
.......
1
TL783
OUT
IN
Vo
ADJ
R1
I
r
o
/. ~R2
-
Figure 15. Regulator With Protective Diode
load regulation
The current-set resistor (R1) should be located close to the regulator output terminal rather than near the load.
This eliminates long line drops from being amplified through the action of R1 and R2 to degrade load regulation.
To provide remote ground sensing, R2 should be near the load ground.
Vo
TL783
RUne
OU
IN
ADJ
R1
I
{I
-=-
Figure 16. Regulator With Current-Set Resistor
~TEXAS
2-458
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
R2
TL783
HIGH-VOLTAGE ADJUSTABLE REGULATOR
SLVS036D - SEPTEMBER 1981 - REVISED AUGUST 1999
APPLICATION INFORMATION
VI = 145 to 200 V
r
I
TIP150
7.5 kQ, 1 W
I
I
TL783
L.
120 V, 1.5W
--< ~ IN
OUT
ADJ
Rl
820
+
;::::;:
/.
OUT
ADJ
:;:;f'+ 10 ~F
TL783
O.lI1F
~R2
I--+--e-_Rl
820
R2
8.2 kQ, 2W
Ot08kO
125 V
+
lOI1F
t Needed if device is more than 4 inches from filter capacitor
Figure 18. 12S-V Short-Circuit-Protected
Off-Line Regulator
Figure 17. 1.2S-V to 11S-V Adjustable Regulator
125V
10
VI = 70 to 125 V
100
100
1 kO
1 kQ
TL783
TL783
VO=50V
at 0.5 A
IN
OUT
IN
OUT
ADJ
ADJ
820
R2
3.3 kO, 1W
Figure 19. SO-V Regulator With Current Boost
Figure 20. Adjustable Regulator
With Current Boost and Current Limit
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS. TEXAS 75265
2--459
Tl783
HIGH-VOLTAGE ADJUSTABLE REGULATOR
SLVS036D - SEPTEMBER 1981 - REVISED AUGUST 1999
APPLICATION INFORMATION
OUT
TL783
ADJ
R
IN
OUT
ADJ
R
Figure 21. Current-Sinking Regulator
Figure 22. Current-Sourcing Regulator
Vee
VI=90V
TL783
.IN
TL783
OUT
IN
ADJ
"-'
6.250
OUTPUT
ADJ
820
TL783
IN
OUT 1-----<1------,
R2
ADJ
820
"-'
3.9kn
INPUT
V-
-=-
Figure 23. High-Voltage Unity-Gain Offset Amplifier
I
-=-
Figure 24. 48-V, 20D-mA Float Charger
~lExAs
2-460
-=- 48V
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLV2217-33
LOW-DROPOUT 3.3-V FIXED-VOLTAGE REGULATORS
SLVS067G - MARCH 1992 - REVISED JULY 1999
PWPACKAGE
(TOP VIEW)
• Fixed 3.3-V Output
• ±1% Maximum Output Voltage Tolerance at
~;:: {
TJ = 2SoC
• SOO-mV Maximum Dropout Voltage at
SOOmA
•
•
•
•
•
•
SOO-mA Dropout Current
±2% Absolute Output Voltage Variation
Internal Overcurrent Limiting
Internal Thermal-Overload Protection
Internal Overvoltage Protection
Package Options Include Plastic Flange
Mounted (KTP). Power (KC). and Thin
Shrink Small-Outline (PW) Packages
}~I~:
GND
GND
INPUT
OUTPUT
~;:: {-. . . __.r} ~;::
HEAT SINK - These terminals have an internal resistive connection
to ground and should be grounded or electrically isolated.
description
KCPACKAGE
(TOP VIEW)
The TLV2217-33 is a low-dropout 3.3-V fixedvoltage regulator. The regulator is capable of
sourcing 500 mA of current with an input-output
differential of 0.5 V, or less. The TLV2217-33
provides internal overcurrent limiting, thermaloverload protection, and overvoltage protection.
The 0.5-V dropout for the TLV2217-33 makes it
ideal for battery applications in 3.3-V logic
systems. For example, battery input voltage to the
regulator can drop as low as 3.8 V, and the
TLV2217-33 can continue to regulate the system.
For higher voltage systems, the TLV2217-33 can
be operated with a continuous input voltage of
12 V.
The GND terminal is in electrical contact with the mounting base.
KTPPACKAGE
(TOP VIEW)
GND
[Q}:
-I
I
__ -.J
OUTPUT
GND
INPUT
The GND terminal is in electrical contact with the mounting base.
The TLV2217-33 regulators are characterized for virtual junction temperature operation from O°C to 125°C.
AVAILABLE OPTIONS
PACKAGED DEVICES
TJ
QOC to 125°C
PLASTIC
POWER
(KC)
SURFACE
MOUNT
(PW)
PLASTIC
FLANGE MOUNT
(KTP)
CHIP FORM
(V)
TLV2217-33KC
TLV2217·33PW
TLV2217-33KTP
TLV2217·33Y
The KTP and PW packages are available taped and reeled only. Add R suffix to device type
(e.g., TLV2212-33PWR). Chip forms are tested at 25°C.
~TEXAS
Copyright © 1999, Texas Instruments Incorporated
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS. TEXAS 75265
2-461
TLV2217·33
LOW·DROPOUT 3.3-V FIXED·VOLTAGE REGULATORS
SLVS067G - MARCH 1992 - REVISED JULY 1999
absolute maximum ratings over operating virtual junction temperature range (unless otherwise
noted)t
Continuous input voltage, VI ................................................................ 16 V
Package thermal impedance, 8JA (see Notes 1 and 2): KC package ........................... 22°C/W
KTP package ......................... 28°C/W
PW package ......... ;................ 83°C/W
Storage temperature range, Tstg .................................................. -65°C to 150°C
t Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. Maximum power dissipation is a function of T J(max), 8JA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature is PD = (TJ(max) - TAl/8JA. Operating at the absolute maximum TJ of 150°C can impact reliability. Due to
variation in individual device electrical characteristics and thermal resistance, the built-in thermal overload protection may be
activated at power levels slightly above or below the rated dissipation.
2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace
length of zero.
recommended operating conditions
MIN
MAX
3.8
12
Output current, 10
0
500
rnA
Operating virtual junction temperature range, T J
0
125
°C
Input voltage, VI
electrical characteristics at VI = 4.5 V, 10 = 500 mA, TJ
Output voltage
TEST CONDITIONs*
10 = 20 rnA to 500 rnA,
Input voltage regulation
VI = 3.8 V to 5.5 V
Ripple rejection
f= 120Hz,
Output voltage regulation
10=20 rnA to 500 rnA
Output noise voltage
f= 10 Hz to 100 kHz
Dropout voltage
Bias current
VI = 3.8 V to 5.5 V
V
= 25°C (unless otherwise noted)
TLV2217-33
PARAMETER
UNIT
UNIT
MIN
TYP
MAX
ITJ=25°C
3.267
3.30
3.333
I TJ = O°C to 125°C
3.234
3.366
5
Vripple= 1 Vpp
mV
30
mV
dB
500
I1V
10=250 rnA
400
10=500 rnA
500
10=0
10 =500 rnA
V
15
-62
5
UNIT
2
5
19
49
mV
rnA
:j: Pulse-testing techniques are used to maintain the virtual Junction temperature as close to the ambient temperature as possible. Thermal effects
must be taken into account separately. All characteristics are measured with a O.l-I1F capacitor across the input and a 22-I1F tantalum capacitor
with equivalent series resistance of 1.5 n on the output.
~TEXAS
INSTRUMENTS
2-462
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLV2217·33
LOW·DROPOUT 3.3-V FIXED-VOLTAGE REGULATORS
SLVS067G - MARCH 1992 - REVISED JULY 1999
electrical characteristics at VI
=4.S V, 10 =SOO mA, TJ =2S0C (unless otherwise noted)
PARAMETER
Output voltage
10 = 20 mA to 500 mA,
Input voltage regulation
VI = 3.8 V to 5.5 V
Ripple rejection
f=120Hz,
Output voltage regulation
10 = 20 mA to 500 mA
Output noise voltage
f=10Hztol00kHz
Dropout voltage
Bias current
t
TEST CONDITIONSt
VI = 3.8 Vto 5.5 V
Vrioole = 1 VPP
TLV2217-33Y
TYP
MAX
3.267
3.30
3.333
5
15
mV
30
mV
-62
5
500
IIV
400
10 = 500 mA
500
10 = 500 mA
V
dB
10=250mA
10=0
UNIT
MIN
2
5
19
49
mV
mA
Pulse-testing techniques are used to maintain the Virtual Junction temperature as close to the ambient temperature as possible. Thermal effects
must be taken into account separately. All characteristics are measured with a 0.1 ilF capacitor across the Input and a 22-IIF tantalum capacitor
with equivalent series resistance of 1.5 Q on the output.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 855303 • DALLAS, TEXAS 75265
2-463
TLV2217-33
LOW-DROPOUT 3.3-V FIXED-VOLTAGE REGULATORS
SLVS067G - MARCH 1992 - REVISED JULY 1999
COMPENSATION-CAPACITOR SELECTION INFORMATION
The TLV2217-33 is a low-dropout regulator. This means that the capacitance loading is important to the performance
of the regulator because it is a vital part of the control loop. The capacitor value and the equivalent series resistance
(ESR) both affect the control loop and must be defined for the load range and the temperature range. Figures 1 and 2
can be used to establish the capacitance value and ESR range for best regulator performance.
ESR OF OUTPUT CAPACITOR
STABILITY
vs
vs
LOAD CURRENT
Cl
I
Ij
ESR
3
2.8
2.6
2.4
2.2
0.04
0.035
0.03
2
1.81-_-+_ _-+_
1.6 ~_-I-_-+-_~~~~_-I
c
1.4 k - - - - j - - - + - - - t - - - + - - - j
1.2 ~.---+---+---I---+---l
!
0.8 P'<'~"""~--+0.6 """.¥.nF~~~oo=-
m
0.4 ~~~~~N'~~~~~~;;;::j
0.2 "",~~~~~y...~~~~~y...~
j
I
0.025
l1
0.02
0.015
0.01
0.005
O~~~~~~~~~~~~~U
o
0.1
0.2
0.3
0.4
0.5
IL - Load Current - A
~- - - - - -
--'Ir---,
lWL
....i...
Figure 1
~TEXAS
2-464
1
1.5
2
2.5 3
1/ESR
Figure 2
.:lIL
Applied Load
--.-Current _~
.....---'
Load
Voltage
0.5
INSTRUMENTS
POST OFFICE BOX 655303 • DAlLAS. TEXAS 75265
3.5
4
4.5
5
TLV2217-33
LOW-DROPOUT 3.3-V FIXED-VOLTAGE REGULATORS
SLVS067G - MARCH 1992 - REVISED JULY 1999
APPLICATION INFORMATION
application schematic
TLV2217-33
,------*"--IINPUT
OUTPUT
-=
-=
-=
1--"--
T
Vo = 3.3 V
22I!F
-=
Figure 3
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-465
2-466
).lA723
PRECISION VOLTAGE REGULATORS
o OR N PACKAGE
• 150-mA Load Current Without External
Power Transistor
• Adjustable Current-Limiting Capability
• Input Voltages up to 40 V
• Output Adjustable From 2 V to 37 V
• Direct Replacement for Fairchild ~723C
(TOP VIEW)
NC
CURR LIM
CURR SENS
ININ+
description
REF
NC
FREQCOMP
VCC+
Vc
OUTPUT
Vz
NC
The pA723 is a precIsion integrated-circuit
voltage regulator, featuring high ripple rejection,
excellent input and load regulation, excellent temperature stability, and low standby current. The circuit consists
of a temperature-compensated reference-voltage amplifier, an error amplifier, a 150-mA output transistor, and
an adjustable-output current limiter.
The pA723 is designed for use in positive or negative power supplies as a series, shunt, switching, or floating
regulator. For output currents exceeding 150 mA, additional pass elements can be connected as shown in
Figures 4 and 5.
The pA723C is characterized for operation from O°C to 70°C.
AVAILABLE OPTIONS
PACKAGED DEVICES
TA
DoC to 70°C
PLASTIC
DIP
(N)
SMALL
OUTLINE
(D)
~723CN
~723CD
CHIP
FORM
(V)
~723Y
The D package is available taped and reeled. Add the suffix
R to the device type (e.g., !1A723CDR). Chip forms are
tested at 25°C.
functional block diagram
FREQCOMP
TemperatureCompensated
Reference Diode
Vc
Series Pass
Transistor
INREF
IN+
Regulated
Output
VCe-
CURR LIM CURR SENS
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
Vz
Copyright © 1999. Texas Instruments Incorporated
2-467
J.LA723
PRECISION VOLTAGE REGULATORS
SLVS057D - AUGUST 1972 - REVISED JULY 1999
schematic
VCC+
5000
1 kO
25kO
Vc
1 kO
OUTPUT
6.2 V
Vz
30kO
t------- FREQ COMP
3000
5kO
2OkO
1 - - - - - - - CURR LIM
1500
L--_ _ _ _ _
REF
IN+
VCe-
CURR SENS
IN-
Resistor and capacitor values shown are nominal.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)t
Peak voltage from VCC+ to VCe- (tw:S; 50 ms) ................................................ 50 V
Continuous voltage from V cc+ to Vcc- ...................................................... 40 V
Input-to-output voltage differential ........................................................... 40 V
Differential input voltage to error amplifier .................................................... ±5 V
Voltage between noninverting input and VCC- ................................................. 8 V
Current from Vz ......................................................................... 25 mA
Current from REF ........................................................................ 15 mA
Package thermal impedance, 9JA (see Notes 1 and 2): D package ........................... 86°CIW
N package .......................... .
101°CIW
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D or N package ............... 260°C
Storage temperature range, Tstg .................................................. -65°C to 150°C
t Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. Maximum power dissipation is a function of TJ(max), 9JA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature is PD = (TJ(max) - TAl/9JA. Operating at the absolute maximum TJ of 150°C can impact reliability.
2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace
length of zero.
~TEXAS
2-468
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
. J.LA723
PRECISION VOLTAGE REGULATORS
SLVS057D - AUGUST 1972 - REVISED JULY 1999
recommended operating conditions
MIN
MAX
9.5
40
V
Output voltage, Vo
2
37
V
Input-to-output voltage differential, Vc - Vo
3
38
V
150
mA
70
°c
Input voltage, VI
Output current, 10
Operating free-air temperature range, TA
11JA723C
0
UNIT
electrical characteristics at specified free-air temperature (see Notes 3 and 4)
PARAMETER
IlA723C
TEST CONDITIONS
Input regulation
Ripple rejection
TA
TYP
25°C
0.1
1
VI = 12VtoVI=40V
25°C
1
5
VI = 12VtoVI = 15V
O°C to 70°C
f=50Hztol0kHz,
Cref=O
25°C
74
f=50Hztol0kHz,
Cref=5llF
25°C
86
25°C
-{l.3
Reference voltage, Vref
25°C
6.8
Output noise voltage
-2
25°C
7.15
7.5
2.3
4
0.003
0.Q15
10=0
RSC= 100,
VO=O
25°C
65
BW = 100 Hz to 10 kHz,
Cref = 0
25°C
20
BW = 100 Hz to 10 kHz,
Cref=5llF
25°C
2.5
O°C to 70°C
Short-circuit output current
mVN
dB
-6
VI=30V,
Temperature coefficient of output voltage
UNIT
3
O°C to 70°C
Standby current
MAX
VI = 12VtoVI = 15V
Output regulation
NOTES: 3.
MIN
mVN
V
mA
o/oI°C
mA
IlV
..
..
For all values In this table, the device IS connected as shown In Figure 1 with the divider resistance as seen by the error amplifier
~ 10 kO. Unless otherwise specified, VI = VCC+ = Vc = 12 V, VCe-= 0, Vo = 5 V, 10 = 1 mA, RSC = 0, and Cref= O.
4. Pulse-testing techniques must be used that will maintain the junction temperature as close to the ambient temperature as possible.
=
electrical characteristics, TA 25°C (see Notes 3 and 4)
PARAMETER
Input regulation
Ripple rejection
TEST CONDITIONS
i!A723Y
MIN
TYP
VI= 12VtoVI= 15V
0.1
VI=12VtoVI=40V
1
f=50Hztol0kHz,
Cref=O
74
f=50Hztol0kHz,
Cref = 51lF
86
MAX
UNIT
mVN
dB
Output regulation
-{l.3
Reference voltage, Vref
7.15
V
10=0
2.3
mA
mA
Standby current
Short-circuit output current
Output noise voltage
NOTES: 3.
VI =30V,
RSC=100,
VO=O
65
BW = 100 Hz to 10 kHz,
Cref=O
20
BW = 100 Hz to 10 kHz,
Cref=5llF
2.5
mVN
IlV
..
For all values In this table, the device IS connected as shown In Figure 1 WIth the diVider resistance as seen by the error amplifier
~ 10 kO. Unless otherwise specified, VI = VCC+ = Vc = 12 V, VCe-= 0, Vo = 5 V, 10 = 1 mA, RSC = 0, and Cref= O.
4. Pulse-testing techniques must be used that will maintain the junction temperature as close to the ambient temperature as possible.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-469
J.1A723
PRECISION VOLTAGE REGULATORS
SLVS057D - AUGUST 1972 - REVISED JULY 1999
APPLICATION INFORMATION
Table 1. Resistor Values (kQ) for Standard Output Voltages
OUTPUT
VOLTAGE
(V)
APPLICABLE
FIGURES
(SEE NOTES)
FIXED OUTPUT
±5%
R1
(kQ)
R2
(kQ)
OUTPUT ADJUSTABLE
±10%
(SEE NOTE 6)
P2
R1
(kQ)
P1
(kQ)
(kQ)
1.2
3.0
1,5,6,9,11,12 (4)
4.12
3.01
1.8
0.5
3.6
1,5,6,9,11,12 (4)
3.57
3.65
1.5
0.5
1.5
5.0
1,5,6,9,11,12 (4)
2.15
4.99
0.75
0.5
2.2
6.0
1,5,6,9,11,12 (4)
1.15
6.04
0.5
0.5
2.7
9.0
2,4, (5, 6, 9, 12)
1.87
7.15
0.75
1.0
2.7
12
2,4, (5, 6, 9, 12)
4.87
7.15
2.0
1.0
3.0
15
2,4, (5, 6, 9, 12)
7.87
7.15
3.3
1.0
3.0
28
2,4, (5, 6, 9,12)
21.0
7.15
5.6
1.0
2.0
45
7
3.57
48.7
2.2
10
39
75
7
3.57
78.7
2.2
10
68
100
7
3.57
105
2.2
10
91
250
7
3.57
255
2.2
10
240
0.75
~
3, 10
3.57
2.43
1.2
0.5
-9
3, 10
3.48
5.36
1.2
0.5
2.0
-12
3,10
3.57
8.45
1.2
0.5
3.3
-15
3, 10
3.57
11.5
1.2
0.5
4.3
-28
3, 10
3.57
24.3
1.2
0.5
10
-45
8
3.57
41.2
2.2
10
33
-100
8
3.57
95.3
2.2
10
91
-250
8
3.57
249
2.2
10
240
(see Note 7)
..
..
NOTES: 5. The Rl/R2 divider can be across either Vo or V(ref). lithe divider IS across
V (ref)' use the figure numbers without parentheses. If the divider is across
VO, use the figure numbers in parentheses.
6. To make the voltage adjustable, the Rl/R2 divider shown in the figures must
be replaced by the divider shown below.
R1
P1
R2
Adjustable Output Circuit
7. For Figures 3, 8, and 10, Ihedevice requires a minimum of9 V between VCC+
and Vee- when Vo is equal 10 or more positive than -9 V.
~TEXAS
INSTRUMENTS
2-470
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
/J.A723
PRECISION VOLTAGE REGULATORS
SLVS057D - AUGUST 1972 - REVISED JULY 1999
APPLICATION INFORMATION
Table 2. Formulas for Intermediate Output Voltages
OUTPUTS FROM 2 V TO 7 V
SEE FIGURES 1, 5, 6, 9,11,12 (4)
AND NOTE 5
Va
=
V(ref)
x
Rl
OUTPUTS FROM 4 V TO 250 V
SEE FIGURE 7 AND NOTE 5
V
Va =~
2
R3 = R4
R2
+ R2
R2- RI
Rl
I(limit)
OUTPUTS FROM -6 V TO -250 V
SEE FIGURES 3, 8, 10
AND NOTES 5 AND 7
OUTPUTS FROM 7 V TO 37 V
SEE FIGURES 2, 4, (5, 6, 9, 11, 12)
AND NOTES
V
x
CURRENT LIMITING
Va = _
Rl + R2
O-V(reij x~
V~eij x
Rl
sc
FOLDBACK CURRENT LIMITING
SEE FIGURE 6
+ R2
I(knee)
Rl
R3 = R4
=
los
VoR3
+
= 0.65 V
Rsc
NOTES:
= -R-0.65 V
(R3 + R4) 0.65 V
Rsc R4
x
R3
+
R4
R4
5. The Rl/R2 divider can be across either Vo or V(rel). If the divider is across V(rel), use figure numbers without parentheses. If the
divider is across YO, use the figure numbers in parentheses.
7. For Figures 3, 8, and 10, the device requires a minimum of 9 V between VCC+ and VCC- when Vo is equal to or more positive than
-9V.
VI
OUTPUT
REF 1!A723
Vz
CURR LIM I--+VVIre- Regulated
Output, Vo
CURR SENS 1 - - - -..
RI
IN+
IN- J--41---'vv\r-'
R3 (see Notes A and B)
FREQCOMP
C(rel)I
R2
l00pF
NOTES: A. R3 = =~ ~ =~ for a minimum avo
B. R3 can be eliminated for minimum component count. Use direct connection (i.e., R3
Figure 1. Basic Low-Voltage Regulator (VO
=0).
=2 V to 7 V)
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-471
~A723
PRECISION VOLTAGE REGULATORS
SLVS057D - AUGUST 1972 - REVISED JULY 1999
APPLICATION INFORMATION
OUTPUT
REF 11-'723
Vz
RSC
CURR LIM I--__-'V\/'v-_
Regulated Output,
R3
(see Notes A and B)
CURR SENS
Vo
1----.
IN+
INVCe- FREQCOMP
100pF
R1
R2
R1 x R2 I
..
NOTES: A. R3 = R1 + R2 or a minimum !lvo
B. R3 can be eliminated lor minimum component count. Use direct connection (i.e., R3 = 0).
Figure 2. Basic High-Voltage Regulator (VO
2kn
Vc
OUTPUT
REF 11-'723
Vz 1---4~-+--l
=7 V to 37 V)
VCC+
2N5001
CURRLIM
R4=3kn
CURRSENS
Regulated Output,
IN+
INVce- FREQ COMP
R3=
3kn
R1
Vo
100pF
Figure 3. Negative-Voltage Regulator
~TEXAS
2-472
INSTRUMENTS
POST OFFICE
eox 655303 •
DALLAS. TEXAS 75265
/lA723
PRECISION VOLTAGE REGULATORS
SLVS057D - AUGUST 1972 - REVISED JULY 1999
APPLICATION INFORMATION
OUTPUT
IlA723
REF
2N3997
Vz
CURR LIM
'---41
CURRSENS
Regulated Output,
Vo
R2
Figure 4. Positive-Voltage Regulator (External npn Pass TranSistor)
VI
600
2N5001
VCC+
Vc
OUTPUT
11A723
REF
Vz
CURRLIM
R1
CURRSENS
INFREQCOMP
RSC
I---~~
___ Regulated Output,
Vo
R2
-=-
-=-
-=-
Figure 5. Positive-Voltage Regulator (External pnp Pass Transistor)
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2-473
JlA723
PRECISION VOLTAGE REGULATORS
SLVS057D - AUGUST 1972 - REVISED JULY 1999
APPLICATION INFORMATION
OUTPUT t--_,""RI'vS""C_
REF !lA723
Vz
~~ulatad Output,
R3
CURR LIM
R1
CURRSENS
R4
IN- !----;'-f-----'
Vo
R2
Figure 6. Foldback Current Limiting
2N2580
1N1826
OUTPUT
REF !lA723
R4=
3kll
IN+
R3=
3ka
Vz
CURR LIM
R2
Vce-
1-----..
CURR SENS
INFREQ COMP
RSC=1a
'---+_---<.--=-______---+-5-00-P-Fl---~ Regulated Output,
Vo
Figure 7. Positive Floating Regulator
~TEXAS
2-474
INSTRUMENTS
POST OFFICE SOX 655303 • DALLAS, TEXAS 75265
~723
PRECISION VOLTAGE REGULATORS
SLVS057D-AUGUST 1972 - REVISED JULY 1999
APPLICATION INFORMATION
VCC+
Vc
10kQ
OUTPUT
REF 1lA723
Vz
R3=
3kn
R2
2N5287
CURR LIM
__-+---+---IIN+
CURRSENS
IN-
VCe- FREQ COMP
R1
R4=
3kn
500 pF
L -.......-+-.......---4.------1f----+----i~ Regulated Output,
Vo
Figure 8. Negative Floating Regulator
3kQ
VCC+
Vc
2N5153
II
OUTPUT
L=1.2mH
.. A723
(see Note A)
,--------1 REF.....
Vz
CURR LIM 1--......-'V'V"v--4IH---t-_.- Regulated Output,
R1
CURR SENS 1--+-_--'
1 kn
Vo
IN+
o.1I1F
T
R2
1 MQ
-= -=
NOTE A. Lis 40 turns of No. 20 enameled copper wire wound on Ferroxcube P36/22-3B7 potted core, or equivalent, with a 0.009-inch air gap.
Figure 9. Positive Switching Regulator
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-475
/-lA723
PRECISION VOLTAGE REGULATORS
SLVS057D - AUGUST 1972 - REVISED JULY 1999
APPLICATION INFORMATION
1 kQ
(see Note A)
R3=
3kO
-=-
2N3997
2200
R2
0.111F
REF
OUTPUT
I1A723
Vz
2N5004
CURRLlM
CURRSENS
1 kQ
IN+
R1
INFREQCOMP
R4=
3kO
1 MO
15 pF
L=1.2mH
II (see
Note B)
1N4005
Regulated Output,
100 l1F
T
Vo
NOTES: A. The device requires a minimum of 9 V between VCC+ and VCe- when Vo is equal to or more positive than -9 V.
B. L is 40 turns of No. 20 enameled copper wire wound on Ferroxcube P36122-3B7 polled core, or equivalent, with a 0.009-inch
air gap.
Figure 10. Negative Switching Regulator
RSC
OUTPUT I-_f-'vv\,...-.;_- Regulated Output,
REF !1A723
Vo
Vz
CURR LIM
R1
CURR SENS
IN+
I----.~---'
IN-
VCe- FREQ COMP
R2
1-+_2",kQvv-_
Input From
Series 54174 Logic
NOTE A. A current-limiting transistor can be used for shutdown if current limiting is not required.
Figure 11. Remote Shutdown Regulator With Current Limiting
~TEXAS
INSTRUMENTS
2-476
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
JlA723
PRECISION VOLTAGE REGULATORS
SLVS057D - AUGUST 1972 - REVISED JULY 1999
APPLICATION INFORMATION
1000
VCC+
REF
OUTPUT
jLA723
Vz
1 kO
2N3997
CURRLIM
R1
IN+
-=
CURRSENS
Regulated Output,
INVCe- FREQCOMP
Vo
R2
-=
-=
Figure 12. Shunt Regulator
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2--477
2-478
JlA7800 SERIES
POSITIVE-VOLTAGE REGULATORS
•
•
•
•
•
•
•
3-Terminal Regulators
Output Current up to 1.5 A
Internal Thermal-Overload Protection
High Power-Dissipation Capability
Internal Short-Circuit Current Limiting
Output Transistor Safe-Area Compensation
Direct Replacements for Fairchild !lA7800
Series
KCPACKAGE
(TOP VIEW)
The COMMON terminal is in electrical
contact with the mounting base.
TO-220AB
description
This series of fixed-voltage
monolithic
integrated-circuit voltage regulators is designed
for a wide range of applications. These
applications include on-card regulation for
elimination of noise and distribution problems
associated with single-point regulation. Each of
these regulators can deliver up to 1.5 A of output
current. The internal current-limiting and
thermal-shutdown features of these regulators
essentially make them immune to overload. In
addition to use as fixed-voltage regulators, these
devices can be used with external components to
obtain adjustable output voltages and currents,
and also can be used as the power-pass element
in preCision regulators.
The !JA7800C series is characterized for
operation over the virtual junction temperature
range of O°C to 125°C.
~:'~o~l: j:r::~:.';.~=::.:.
:l1':'ur..::.:
standard warranty. Production processing does not necessarily include
lilting 01 all parame11r8.
KTEPACKAGE
(TOP VIEW)
[G
0UTPUT
COMMON
INPUT
The COMMON terminal is in
electrical contact with the mounting
base.
~lExAs
Copyright © 1999, Texas Instruments Incorporated
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
2--479
J,JA7800 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS056E - MAY 1976 - REVISED JULY 1999
AVAILABLE OPTIONS
PACKAGED DEVICES
TJ
O°Cto 12SoC
VO~NOM)
V)
PLASTIC
FLANGE-MOUNT
(KC)
HEAT-SINK
MOUNTED
(KTE)
CHIP
FORM
(Y)
S
1JA780SCKC
1JA780SCKTE
1JA780SY
6
1JA7806CKC
1JA7806CKTE
1JA7806Y
8
1JA7808CKC
1JA7808CKTE
1JA7808Y
8.S
1JA788SCKC
1JA788SCKTE
1JA788SY
10
1JA7810CKC
1JA7810CKTE
1JA7810Y
1JA7812CKC
1JA7812CKTE
1JA7812Y
lS
1JA781SCKC
1JA781SCKTE
1JA781SY
18
1JA7818CKC
1JA7818CKTE
1JA7818Y
24
1JA7824CKC
1JA7824CKTE
1JA7824Y
12
"-
The KTE package IS only available taped and reeled. Add the suffix R to the device type
(e.g., 1JA780SCKTER). Chip forms are tested at 2SoC.
schematic
r-~----------'-------~---'------~INPUT
H-----+......-----.......+-- OUTPUT
L -......--~--~--+----~~~~----~--COMMON
~TEXAS
2-480
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
uA7800 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS056E - MAY 1976 - REVISED JULY 1999
absolute maximum ratings over operating temperature ranges (unless otherwise noted)t
1lA78xx
Input voltage, VI
1!!A7824C
40
IAll others
35
Virtual junction temperature range, TJ
Oto 150
Package thermal impedance, 9JA (see Notes 1 and 2)
I KCpackage
22
I KTE package
23
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
Storage temperature range, Tstll
UNIT
V
°C
°C
260
°C
-65 to 150
°C
t Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those Indicated under "recommended operating conditions' is not
Implied. Exposure to absolute-maxim urn-rated conditions for extended periods may affect device reliability.
NOTES: 1. Maximum power dissipation is a function of TJ(max), 9JA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature Is PD = (TJ(max) - TA)/9JA. Operating at the absolute maximum TJ of 150°C can Impact reliability. Due to
variations in individual device electrical characteristics and thermal resistance, the built-in thermal overload protection may be
activated at power levels slightly above or below the rated dissipation.
2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace
length of zero.
recommended operating conditions
MIN
MAX
7
25
!!A7806C
8
25
J.LA7808C
10.5
25
!!A7885C
10.5
25
1lA7805C
Input voltage, VI
1lA7810C
12.5
28
1lA7812C
14.5
30
1lA7815C
17.5
30
!!A7818C
21
33
!!A7824C
27
Output current, 10
Operating virtual junction temperature, TJ
!!A7800C series
0
UNIT.
V
38
1.5
A
125
°C
~TEXAS
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POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2-481
/lA7800 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS056E - MAY 1976 - REVISED JULY 1999
electrical characteristics at specified virtual junction temperature, VI
otherwise noted)
PARAMETER
Output voltage
Input voltage regulation
Ripple rejection
Output voltage regulation
TEST CONDITIONS
10=5mAt01 A,
PDS15W
VI = 7 V to 20 V,
VI =7Vt025V
!lA7805C
TJt
MIN
TYP
25°C
4.8
5
O°C to 125°C
4.75
25°C
VI=8Vt012V
VI=8Vt018V,
= 10 V, 10 = 500 mA (unless
1= 120 Hz
10=5 rnA to 1.5A
O°C to 125°C
62
25°C
10 = 250 rnA to 750 rnA
MAX
5.2
5.25
3
100
1
50
78
UNIT
V
mV
dB
15
100
5
50
mV
Output resistance
1= 1 kHz
O°C to 125°C
0.017
n
Temperature coefficient 01 output voHage
10=5mA
O°C to 125°C
-1.1
mV/oC
Output noise voltage
1=10Hzt01OOkHz
25°C
40
Dropout voltage
10=1A
25°C
2
25°C
4.2
Bias current
Bias current change
f.1V
V
8
1.3
VI =7Vt025V
O°Cto 125°C
io=5mAt01 A
0.5
rnA
rnA
Short-cIrcuit output current
25°C
750
rnA
Peak output current
25°C
2.2
A
t Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into
account separately. All characteristics are measured with a 0.33-f.1F capacitor across the input and a 0.1-f.1F capacitor across the output.
electrical characteristics at specified virtual junction temperature, VI
otherwise noted)
PARAMETER
Output voltage
Input voltage regulation
Ripple rejection
Output voltage regulation
TEST CONDITIONS
10=5mAt01A,
PDS15W
VI = 8 V to 21 V,
VI =8Vt025V
TJt
!lA7806C
MIN
TYP
MAX
25°C
5.75
6
6.25
O°Cto 125°C
5.7
25°C
VI=9Vt013V
VI=9Vt019V,
= 11 V,IO = 500 mA (unless
1= 120 Hz
10=5mAto1.5A
10 = 250 rnA to 750 rnA
O°Cto 125°C
25°C
59
6.3
5
120
1.5
60
75
UNIT
V
mV
dB
14
120
4
60
mV
Output reSistance
1= 1 kHz
O°Cto 125°C
0.019
n
Temperature coefficient 01 output voltage
10=5mA
O°C to 125°C
--{l.8
mVrC
Output noise voltage
1= 10 Hz to 100 kHz
25°C
45
Dropout voltage
10=1 A
25°C
2
25°C
4.3
Bias current
Bias current change
VI =8 Vt025 V
10=5mAt01 A
f.1V
V
8
1.3
O°Cto 125°C
0.5
rnA
rnA
Short-circuit output current
25°C
550
rnA
Peak output current
25°C
2.2
A
t Pulse-testing techniques maintain the Junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into
account separately. AI! characteristics are measured with a O.33-j.1.F capacitor across the input and a 0.1 ~i!F capacitoi dCiOSS the output.
~1ExAS
2-482
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
~A7800 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS056E- MAY 1976- REVrSEDJULY 1999
electrical characteristics at specified virtual Junction temperature, VI = 14 V, 10 = 500 mA (unless
otherwise noted)
TEST CONDITIONS
PARAMETER
Output voltage
Input voltage regulation
Ripple rejection
Output voltage regulation
10=5mAtol A,
PDS15W
TJt
TYP
MAX
25°C
7.7
8
8.3
O°C to 125°C
7.6
VI = 10.5 V to 23 V,
VI = 10.5 Vt025 V
25°C
VI=ll Vto17V
VI = 11.5 Vto 21.5 V,
1= 120Hz
O°C to 125°C
10=5 rnA to 1.5 A
55
25°C
10 = 250 rnA to 750 rnA
8.4
6
160
2
80
72
UNIT
V
mV
dB
12
160
4
80
mV
Output resistance
1= 1 kHz
O°C to 125°C
0.016
0
Temperature coefficient 01 output voltage
10=5mA
O°C to 125°C
- VI(ref), rz, Is given by:
rz' = rz(1 +
=~
)
~1ExAs
INSTRUMENTS
POST OFFICE eox 655303 • DALLAS. TEXAS 75265
TL430
ADJUSTABLE SHUNT REGULATORS
SLVS050B - JUNE 1976 - REVISED JULY 1999
electrical characteristics over recommended operating conditions, TA = 25°C (unless otherwise
noted)
TEST
FIGURE
PARAMETER
Vilrefl
Reference input voltage
1
II(ref)
Reference input current
IZK
Regulator current near lower knee of
regulation range
2
1
1
IZK
Regulator current at maximum limit of
regulation range
2
rz
Differential regulator resistance (see Note 5)
1
Vn
Noise voltage
2
TL430Y
TEST CONDITIONS
Iz=10mA
Vz = VI (ref),
IZ= 10 rnA,
TYP
MAX
2.5
2.75
3
V
3
10
!LA
0.5
2
rnA
R1=10kn,
R2=~
VZ=VI(ref)
50
VZ=VI{refl
Vz = 5 V to 30 V,
See Note 4
rnA
100
Vz = VI(ref), ...
dlZ= (52-2) rnA
1.5
f=0.1 Hz to 10Hz
UNIT
MIN
VZ=3V
VZ= 12V
50
200
VZ=30V
650
3
W
f.lV
NOTES: 4. The average power dissipation, VZ. IZ. duty cycle, must not exceed the maximum continuous rating In any 10-ms Interval.
5. The regulator resistance for Vz > VI(ref), rz, is given by:
rz' = rz
(1
+
=~
)
PARAMETER MEASUREMENT INFORMATION
Input-'W'v---....- - Vz
. . -_ _.... ~IZ
~f)
R1
Input - ' W V - ' - - -
e--.---....
"'('
.f
VI(ref)
•
R2
TL430
vz
Figure 1. Test Circuit for Vz
=VI(ref)
TL430
= V I(ref) (1
+
=~)
+
II(ref) x R1
Figure 2. Test Circuit for Vz > VI(ref)
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
3-5
TL430
ADJUSTABLE SHUNT REGULATORS
SLVS050B-JUNE 1976- REVISED JULY 1999
TYPICAL CHARACTERISTICS
SMALL·SIGNAL REGULATOR IMPEDANCE
3
C
I
f!
c
III
1..5
I
Iiii
c
~iii
E
va
FREQUENCY
CATHODE VOLTAGE
160
.l
I
VZ=VI~~f)
Vz = VI~ref)
2.8 -TA=25 C
140 I--TA=25 C
2.6
120
1
I
2.4
C
~
100
2.2
0
80
~
2
1.8
I
III
N
N
CATHODE CURRENT
va
1.6
1.4
1
/
/
IZM
GI
"8
.c
~
..!.
/
IZ
60
40
20
/
106
10
o
IZK
o
2
3
v - Cathode Voltage -
f - Frequency - Hz
Figure 3
4
V
Figure 4
APPLICATION INFORMATION
R
V+
Vo
I
I
~
TI
Vo
I
Vo =
(1
+
=~) vl(ref)
Vo =
Figure 5. Shunt Regulator
(1
+
=~) VI(ref)
Figure 6. Series Regulator
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TL430
ADJUSTABLE SHUNT REGULATORS
SLVS050B-JUNE 1976 - REVISED JULY 1999
APPLICATION INFORMATION
Va
r-_JV\IIr-_ 10
R2
Va =
VI(ref)
10 = -R-
CL
~VI/I"""'r---
=~) VI(ref)
+
Min Va = VI(ref)
Figure 7. Current limiter
V+
(1
+ 5V
Figure 8. Output Control of a 3-Terminal
Fixed Regulator
va
___- -___-
R1
R1
R2
R2
Vlimit = (
1 + =~)
(VI(ref)
+ VBE
(Q1»)
Figure 1O. Crowbar
Figure 9. Higher-Current Applications
VCC--.-----.---,
R1B
R1A
Low limit = vl(ref) (1 +
R2A
R2B
High limit = VI(ref)
(1
+
=~:) + Vo
=~:)
Figure 11. Vee Monitor
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
3-7
TL431 , TL431 A
ADJUSTABLE PRECISION SHUNT REGULATORS
SLVSOOSJ - JULY 1978 - REVISED
• Equivalent Full-Range Temperature
Coefficient . .. 30 ppm/oC
• 0.2-0 Typical Output Impedance
• Sink-Current Capability ... 1 mA to 100 mA
• Low Output Noise
• Adjustable Output Voltage . .. Vref to 36 V
• Available in a Wide Range of High-Density
Packages
DPACKAGE
(TOP VIEW)
CATHODE
ANODE
ANODE
NC
2
3
4
7
6
s
REF
ANODE
ANODE
NC
OS
P OR PW PACKAGE
(TOP VIEW)
description
The TL431 and TL431A are three-terminal
adjustable shunt regulators with specified thermal
stability over applicable automotive, commercial,
and military temperature ranges. The output
voltage can be set to any value between Vref
(approximately 2.5 V) and 36 V with two external
resistors (see Figure 17). These devices have a
typical output impedance of 0.2 n. Active output
circuitry provides a very sharp turn-on
characteristic, making these devices excellent
replacements for Zener diodes in many
applications, such as onboard regulation,
adjustable power supplies, and switching power
supplies.
Os
1999
CATHODE
NC 2
NC 3
NC4
REF
7 NC
6 ANODE
sNC
NC - No internal connection
PKPACKAGE
(TOP VIEW)
Q
REF ANODE CATHODE
The TL431 e and TL431 Ae are characterized for
operation from ooe to 70 oe, and the TL431 I and
TL431 AI are characterized for operation from
,-40oe to 85°e.
LPPACKAGE
(TOP VIEW)
CATHODE
REF
-'
[[JJ:
KTPPACKAGE
(TOP VIEW)
ANODE
~ThxAs
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS, TEXAS 75265
I
__ ...1
CATHODE
ANODE
REF
Copyright @ 19GG, Texas Instruments Incorporated
TL431 , TL431 A
ADJUSTABLE PRECISION SHUNT REGULATORS
SLVSOO5J -JULY 1978- REVISED JULY 1999
AVAILABLE OPTIONS
PACKAGED DEVICES
SMALL
OUTLINE
(D)
PLASTIC
FLANGE
MOUNT
(KTP)
TO-226AA
(LP)
PLASTIC
DIP
(P)
SOT-89
(PK)
SHRINK
SMALL
OUTLINE
(PW)
0°Ct070°C
TL431CD
TL431ACD
TL431CKTPR
TL431CLP
TL431 ACLP
TL431CP
TL431ACP
TL431CPK
TL431CPW
-40°C to 85°C
TL4311D
TL431 AID
TL4311LP
TL431AILP
TL4311P
TL431 AlP
TL431IPK
TA
CHIP
FORM
(Y)
TL431Y
The D and LP packages are available taped and reeled. The KTP and PK packages are only available taped and reeled. Add
the suffix R to device type (e.g., TL431 CDR). Chip forms are tested at TA = 25°C.
symbol
REF
ANODE -
~*I--
.....
CATHODE
functional block diagram
CATHODE
ANODE
equivalent schematlct
CATHODE--~~-------'---~~-~--~----~-,
8000
20pF
REF
ANODE-~~--~~----~--~~'----------'~
t All component values are nominal.
~TEXAS
3-10
INSTRUMENTS
POST OFFICE eox 655303 • DALLAS, TEXAS 75265
TL431 , TL431 A
ADJUSTABLE PRECISION SHUNT REGULATORS
SLVS005J -JULY 1978 - REVISED JULY 1999
absolute maximum ratings over operating free-air temperature range (unless otherwise noted}t
Cathode voltage, VKA (see Note 1) .......................................................... 37 V
Continuous cathode current range, IKA ......................................... -100 mA to 150 mA
Reference input current range ................................................... -50!lA to 10 mA
Package thermal impedance, 9JA (see Notes 2 and 3): D package ............................ 97°CIW
LP package .......................... 156°CIW
KTP package ......................... 28°CIW
P package ............................ 127°CIW
PK package ........................... 52°CIW
PW package .......................... 149°CIW
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D, P, or PW package ............ 260°C
Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds: LP or PK package .............. 300°C
Storage temperature range, Tstg .................................................. -65°C to 150°C
t Stresses beyond those listed under "absolute maximum ratings' may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions' is not
implied. Exposure to absolute-maxi mum-rated conditions for extended periods may affect device reliability.
NOTES: 1. Voltage values are with respect to the anode terminal unless otherwise noted.
2. Maximum power dissipation is a function of TJ(max), 8JA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature is Po (TJ(max) - TA)/9JA. Operating at the absolute maximum TJ of 150°C can impact reliability.
3. The package thermal impedance is calculated in accordance with JESO 51, except for through-hole packages, which use a trace
length of zero.
=
recommended operating conditions
Cathode voltage, VKA
Cathode current, IKA
I TL431C, TL431AC
Operating free-air temperature range, TA
1TL431I, TL431 AI
MIN
MAX
Vref
1
36
UNIT
V
100
mA
0
70
-40
85
°C
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
3-11
TL431 , TL431 A
ADJUSTABLE PRECISION SHUNT REGULATORS
SLVSQ05J-JULY 1978- REVISED JULY 1999
electrical characteristics over recommended operating conditions, TA = 25°C (unless otherwise
noted)
TEST
CIRCUIT
PARAMETER
Vref
Reference voltage
2
VKA=Vref,
VI(dev)
Deviation of reference voltage
over full temperature range
(see Figure 1)
2
VKA = Vref, IKA = 10 mA,
TA=fuliranget
l>vref
l>V KA
Ratio of change in reference voltage
to the change in cathode voltage
3
IKA=10mA
Iref
Reference current
3
IKA = 10 mA, Rl = 10 ko, R2 = ~
II(dev)
Deviation of reference current
over full temperature range
(see Figure 1)
3
IKA= 10 mA, Rl = 10 kn,
TA = full ranget
Imin
Minimum cathode current
for regulation
2
VKA= Vref
loff
Off-state cathode current
4
VKA=36V,
1
IKA = 1 mA to 100 mA, VKA = Vref,
fs 1 kHz
Dynamic impedance (see Figure 1)
IZKAI
t
Full range
IS
TL431C
TEST CONDITIONS
IKA= 10 mA
UNIT
MIN
TYP
MAX
2440
2495
2550
mV
4
25
mV
-1.4
-2.7
-1
-2
2
4
V
IIA
0.4
1.2
IIA
0.4
1
mA
0.1
1
IIA
0.2
0.5
IAVKA=10V-Vref
IAVKA=36V-l0V
R2=~,
Vref=O
mV
n
O°C to 70°C for the TL431 C.
The deviation parameters Vref(dev) and Iref(dev) are defined as the differences between the maximum and minimum
values obtained over the recommended temperature range. The average full-range temperature coefficient of the
reference voltage, !lVref, is defined as:
I!lVrefl
(
ppm) _
--oc -
(
.., .._v... ~-.-
VI(d9V)
) x 106
V ref at 25°C
TA
! VI(dev)
~
MinlmumVref
~_L
I+--- ATA ---.j
where:
~TA is
the recommended operating free-air temperature range of the device.
!lVref can be positive or negative, depending on whether minimum Vref or maximum Vref, respectively, occurs at the
lower temperature.
Example: maximum Vref
8TA = 70°C forTL431C
1!lVref1 -
= 2496 mV at 30°C, minimum Vref = 2492 mV at O°C, Vref = 2495 mV at 25°C,
(24~~~V) x 106 _
°
- 23 ppm/ C
700C
Because minimum Vref occurs at the lower temperature, the coefficient is positive.
~V
Calculating Dynamic Impedance
The dynamic impedance is defined as: IZKAI
=
~I KA
KA
When the device is operating with two external resistors (see Figure 3), the total dynamic impedance of the circuit
is given by:
!z'!
= ~y
""
IZKAI (1
+
~~)
Figure 1. Calculating Deviation Parameters and Dynamic Impedance
3-12
:II
TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TL431 , TL431 A
ADJUSTABLE PRECISION SHUNT REGULATORS
SLVSOO5J - JULY 1978 - REVISED JULY 1999
electrical characteristics over recommended operating conditions, TA
noted)
.
PARAMETER
TEST
CIRCUIT
TEST CONDITIONS
UNIT
TYP
MAX
2440
2495
2550
mV
5
50
mV
IllVKA= 10V-Vref
-1.4
-2.7
II1VKA=36V-l0V
-1
-2
2
4
V
!1A
0.8
2.5
!1A
0.4
1
mA
0.1
1
!1A
0.2
0.5
n
Reference voltage
2
VKA=Vref,
VI(dev)
Deviation of reference voltage
over full temperature range
(see Figure 1)
2
VKA = Vref IKA = 10 mA,
TA = full ranget
llVre!
llV KA
Ratio of change in reference voltage
to the change in cathode voltage
3
IKA=10mA
Iref
Relerence current
3
IKA = 10 mA, R1 = 10 kn, R2 = ~
II(dev)
Deviation of reference current
over full temperature range
(see Figure 1)
3
IKA = 10 mA, Rl = 10 kn, R2
TA = full ranget
Imin
Minimum cathode current lor
regulation
2
VKA=Vref
loff
Off-state cathode current
4
VKA= 36 V,
2
IKA = 1 mA to 100 mA, VKA = Vref,
Is; 1 kHz
Dynamic impedance (see Figure 1)
TL431 I
MIN
Vref
IZKAI
=25°C (unless otherwise
IKA=10mA
=~,
Vref=O
mV
t Full range IS -4Q°C to 85°C lor the TL431 I.
electrical characteristics over recommended operating conditions, TA = 25°C (unless otherwise
noted)
PARAMETER
TEST
CIRCUIT
TEST CONDITIONS
TL431AC
UNIT
MIN
TYP
MAX
2470
2495
2520
mV
4
25
mV
I I1VKA = 10V-Vref
-1.4
-2.7
I !1YKA = 36 V -10 V
-1
-2
2
4
!1A
0.8
1.2
!1A
Vref
Reference voltage
2
VKA= Vref,
VI(dev)
Deviation of reference voltage
over full temperature range
(see Figure 1)
2
VKA = Vref IKA = 10 mA,
TA = full ranget
llVre!
llV KA
Ratio 01 change in relerence voltage
to the change in cathode voltage
3
IKA= lOrnA
Iref
Reference current
3
IKA = 10mA, Rl = 10 kn, R2
=~
II(dev)
Deviation of reference currant
over full temperature range
(see Figure 1)
3
IKA = 10 mA, Rl = 10 kn, R2
TA = full range:!:
=~,
Imln
Minimum cathode current
lor regulation
2
VKA= Vref
0.4
0.6
mA
loff
Off-state cathode current
4
VKA=36V,
0.1
0.5
!1A
IZKAI
Dynamic impedance (see Figure 1)
1
IKA = 1 mA to 100 mA, VKA = Vref,
fs; 1 kHz
0.2
0.5
n
IKA= lOrnA
Vref=O
mV
V
:!: Full·range IS O°C to 70°C for the TL431 AC.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
3-13
TL431 , TL431 A
ADJUSTABLE PRECISION SHUNT REGULATORS
SLVSOOSJ - JULY 1978 - REVISED JULY 1999
electrical characteristics over recommended operating conditions, TA
noted)
TEST
CIRCUIT
PARAMETER
TL431 AI
TEST CONDITIONS
TYP
MAX
2470
2495
2520
mV
5
50
mV
II:J.VKA = 10 V - Vref
-1.4
-2.7
II:J.VKA=36V-10V
-1
-2
2
4
V
ItA
0.8
2.5
ItA
0.4
0.7
mA
0.1
0.5
ItA
0;2
0.5
n
Reference voltage
2
VKA= Vref,
VI(dev)
Deviation of reference voltage
over full temperature range
(see Figure 1)
2
VKA = Vref, IKA = 10 mA,
TA = full ranget
INref
I:J.V KA
Ratio of change in reference voltage
to the change in cathode voltage
3
IKA=10mA
lref
Reference current
3
IKA = 10 rnA, R1 = 10 kn, R2 =
II(dev)
Deviation of reference current
over full temperature range
(see Figure 1)
3
IKA = 10 mA, R1 = 10 kO, R2 =
TA = full ranget
Imin
Minimum cathode current
for regulation
2
VKA= Vref
loff
Off-state cathode current
4
VKA=36V,
2
IKA = 1 mA to 100 mA, VKA = Vref,
fS 1 kHz
Dynamic impedance (see Figure 1)
UNIT
MIN
Vref
IZKAI
=25°C (unless otherwise
IKA=10mA
00
00,
Vref=O
mV
t Full range IS -40°C to 85°C for the Tl431 AI.
electrical characteristics over recommended operating conditions, TA = 25°C (unless otherwise
noted)
TEST
CIRCUIT
PARAMETER
Vref
Reference voltage
2
TL431V
TEST CONDITIONS
VKA= Vref,
MIN
IKA= 10mA
TYP
2495
II:J.VKA=10V~Vref
-1.4
II:J.VKA=36V-10V
-1
I:J.Vref
I:J.V KA
Ratio of change in reference voltage
to the change in cathode voltage
3
IKA=10mA
Iref
Reference input current
3
IKA = 10 mA, R1 = 10 ko, R2 =
Imin
Minimum cathode current
for regulation
2
loff
Off-state cathode current
4
IZKAI
Dynamic impedance;
2
IKA = 1 mA to 100 mA, VKA = Vref,
fs 1 kHz
MAX
VKA= Vref
0.4
mA
VKA=36V,
0.1
ItA
0.2
n
00
Vref=O
1= I:J.VKA
I:J.IKA
When the device is operating with two external resistors (see Figure 3), the total dynamic impedance of the circuit is given by:
+ R1)
R2
~1ExAs
INSTRUMENTS
3-14
mV
2
KA
Iz'l = I:J.V = Iz I (1
I:J.I
KA
mV
V
ItA
; Calculating dynamiC impedance:
The dynamic impedance is defined as: Iz
UNIT
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TL431 , TL431 A
ADJUSTABLE PRECISION SHUNT REGULATORS
SLVSOO5J - JULY 1978 - REVISED JULY 1999
PARAMETER MEASUREMENT INFORMATION
Input
~VVV-.---
Vref
1
Figure 2. Test Circuit for VKA =Vref
Input -4/lJIv---4f--- VKA
,..-----e llKA
R1
R2
Vref
-=-
1
Figure 3. Test Circuit for VKA > Vref
VKA
Input
... loff
Figure 4. Test Circuit for loff
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
3-15
TL431 , TL431 A
ADJUSTABLE PRECISION SHUNT REGULATORS
SLVSOO5J - JULY 1978 - REVISED JULY 1999
TYPICAL CHARACTERISTICS
Table 1. Graphs
FIGURE
Reference input voltage vs Free-air temperature
5
Reference input current vs Free-air temperature
6
Cathode current vs Cathode voltage
7,8
Off-state cathode current vs Free-air temperature
9
Ratio of delta reference voltage to change In cathode voltage vs Free-air temperature
10
Equivalent input noise voltage vs Frequency
11
Equivalent input noise voltage over a 10-second period
12
Small-signal voltage amplification vs Frequency
13
Reference impedance vs Frequency
14
Pulse response
15
Stability boundary conditions
16
Table 2. Application Circuits
FIGURE
Shunt regulator
17
Single-supply comparator with temperature-compensated threshold
18
Precision high-current series regulator
19
Output control of a three-terminal fixed regulator
20
High-current shunt regulator
21
Crowbar circuit
22
Precision 5-V 1.5-A regulator
23
Efficient 5-V precision regulator
24
PWM converter with reference
25
Voltage monitor
26
Delay timer
27
PreCision current limiter
28
Precision constant-current sink
29
~TEXAS
3-16
INSTRUMENTS
POST OFFICE BOX 655303 • DAUAS. TEXAS 75265
TL431 , TL431 A
ADJUSTABLE PRECISION SHUNT REGULATORS
SLVSOO5J - JULY 1978 - REVISED JULY 1999
TYPICAL CHARACTERISTICSt
REFERENCE VOLTAGE
vs
FREE-AIR TEMPERATURE
2600
1
VKA = Vret
IKA=10mA
2580
,
=e
...I
2540
2520
c
2500
.....
I!!
i
_I.
5
LI
R1 =10kO
R2 =00
IKA=10mA
C
4
:;.
I
C
Vret = 2495 mv*
.../
2480
r-- r--
'"
2460
>
~
..V-
I
i!
-
1
Vref = 2550 mv*
2560
~
REFERENCE CURRENT
vs
FREE-AIR TEMPERATURE
1
i
-
..
-....
c
I!!
~
a:
2400
-75
-50
-25
0
25
50
75
100
2
.........
I
I'-kl
i'
2420
...r-.
...
Vref = 2440 mV*
2440
3
(J
J
125
o
TA - Free-Air Temperature - °C
-75
-50
:t: Data is for devices having the indicated value of Vref atlKA = 10 mA,
-25
Figure 5
100
c:;.
I
50
C
~~
...
25
(J
Imln "400
~
200
/
...
1
'Iii
0
I
-25
-50
-75
-100
-2
~
J
V-
(J
J
600
(J
0
~
125
VKA = Vret
TA=25°C
75
"a
100
800
VKA = Vret
TA = 25°C
C
~~
I
75
CATHODE CURRENT
vs
CATHODE VOLTAGE
150
e
50
Figure 6
CATHODE CURRENT
vs
CATHODE VOLTAGE
C
25
TA - Free-Air Temperature - °C
TA = 25°C.
125
0
---r-r- -
-1
/~
I
I
/
/
0
-200
o
2
3
-1
r
VKA - Cathode Voltage - V
o
2
3
VKA - Cathode Voltage - V
Figure 7
Figure 8
t Data at high and low temperatures are applicable only within the recommended operating free-air temperature ranges of the various devices.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
3-17
TL431 , TL431 A
ADJUSTABLE PRECISION SHUNT REGULATORS
SLVSOOSJ - JULY 1978 - REVISED JULY 1999
TYPICAL CHARACTERISTICSt
RATIO OF DELTA REFERENCE VOLTAGE TO
DELTA CATHODE VOLTAGE
va
FREE-AIR TEMPERATURE
OFF-STATE CATHODE CURRENT
va
FREE-AIR TEMPERATURE
-0.65
2.5
VKA=36V
Vref=O
C
::l.
I
....
-0.95
J
:::s
U
Gl
1.5
/
"I::J
0
.c
~
Gl
~
5I
J
i'....r.....
2
1:
~
o
-75 -00
E
0
25
50
75
.......
I
~
> -1.15
~
i!
>
ml
10 10
TA 25°C
240
100
10
100
10k
1k
f - Frequency - Hz
100k
Figure 11
t Data at high and low temperatures are applicable only within the recommended operating free-air temperature ranges of the various devices.
~TEXAS
3-18
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TL431 , TL431 A
ADJUSTABLE PRECISION SHUNT REGULATORS
SLVSOOSJ -JULY 1978- REVISED JULY 1999
TYPICAL CHARACTERISTICS
EQUIVALENT INPUT NOISE VOLTAGE
OVER A 1Q-SECOND PERIOD
6
>:I.
5
4
I
II
&:II
i
~
3
2
I
ur\J
I~
"'I WII'"
IV
'$
0
.5
-1
0-
C
I
-2
:::I
-3
I
-4
IT
W
c
>
I
L
I
J
r-
,
1 .A It
I
'lilli'
,
III,
I'll
,
Z
hO.1 to10Hz
r- IKA=10mA
-5
TA=25°e
-6
o
2
3
19.1 V
4
5
6
t-Time-s
7
8
9
10
1 kn
500!J.F
Vee
Vee
8200
16kO
160
-=-
160kn
16kO
1 !J.F
To Oscilloscope
~~
-=-
AV=2VN
0.1 !J.F
33kO
VEE
VEE
Figure 12. Test Circuit for Equivalent Input Noise Voltage
~TEXAS
.
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
3-19
TL431,TL431A
ADJUSTABLE PRECISION SHUNT REGULATORS
SLVSOO5J-JULY 1978- REVISED JULY 1999
TYPICAL CHARACTERISTICS
SMALL-SIGNAL VOLTAGE AMPLIFICATION
vs
FREQUENCY
60
~~=101n:A
III
'1:1
I
c
i
:I:
i5.
E
TA = 25°C
50
40
r------.It-------41--
'f\
15k{}
0(
30
~
iii
c
CJI
~
~
II)
I
1\
20
~
10
TEST CIRCUIT FOR VOLTAGE AMPLIFICATION
>
0(
232Q
+
GO
I
Output
r--..
o
1k
10 k
100 k
1M
10M
f - Frequency - Hz
Figure 13
REFERENCE IMPEDANCE
vs
FREQUENCY
100
IKA=10mA
TA = 25°C
c:
I
.
fI
c
I.§
10
fI
~
-m
II:
I
-=
~
..!:!
TEST CIRCUIT FOR REFERENCE IMPEDANCE
I
I
0.1
1k
10k
100 k
1M
10M
f.- Frequency - Hz
Figure 14
-!!1TEXAS
3-20
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TL431 , TL431 A
ADJUSTABLE PRECISION SHUNT REGULATORS
SLVSOOSJ - JULY 1978 - REVISED JULY 1999
TYPICAL CHARACTERISTICS
PULSE RESPONSE
6
IInput
TA = 25°C
5
2200
>
r - - -.....'VV'~.--e-
I
J
~
'5
!
Pulse
Generator
f= 100 kHz
3
..
a.
50 0
Outpu
0
l
Output
4
/
2
.....-~--e-GND
~--
.5
TEST CIRCUIT FOR PULSE RESPONSE
o
-1
0
2
4
3
6
5
7
t- Tlme-1lS
Figure 15
STABILITY BOUNDARY CONDITIONSt
100
90
cc
E
80
70
I
60
i
Stable
C
Stable
50
~
40
J
30
I
1500
TA=25°C
B
I
0
A 'vKA ='\I~f
BVKA=5V
CVKA=10V
DV
= 15 Vf
I
AI
/
III
I
D
20
10
o
0,001
V/
V
0.01
/
,
TEST CIRCUIT FOR CURVE A
llKA
Rl =10kO
+
l\
0.1
10
R2
veATT
CL - Load Capacitance -I1F
t The areas under the curves represent conditions that may cause the
device to oscillate, For curves S, C, and D, R2 and V+ were adjusted
to establish the initial VKAand IKAconditionswithCL =0. VSATTand
CL were then adjusted to determine the ranges of stability.
TEST CIRCUIT FOR CURVES e, C, AND D
Figure 16
~1EXAS
INSTRUMENTS
POST OFFICE BOX 655303 • OALLAS, TEXAS 75265
3-21
TL431 , TL431 A
ADJUSTABLE PRECISION SHUNT REGULATORS
SLVSOOSJ.-JULY 1978- REVISED JULY 1999
APPLICATION INFORMATION
R
(see Note A)
VI(BATT)
-.l\/V\r-.------+-- Vo
Vref
RETURN
f - - - - t - A TL431
---e------.--
NOTE A. R should provide cathode current 2:1 rnA to the TL431 at minimum VI (BATT).
Figure 17. Shunt Regulator
VI(BATT)
Vo
Input
-'VVI.,.--j~
Von=2V
VOff = VI(BATT)
VIT=2.5 V
- -.....---i~- GND
Figure 18. Single-Supply Comparator With Temperature-Compensated Threshold
VI(BATT)
TL431
NOTE A. R should provide cathode current 2:1 rnA to the TL431 at minimum VI(BATT)'
Figure 19. Precision High-Current Series Regulator
~lExAs
3-22
INSTRUMENTS
POST OFFICE
eox 655303 •
DALLAS. TEXAS 75265
TL431 , TL431 A
ADJUSTABLE PRECISION SHUNT REGULATORS
SLVSOO5J -JULY 1978- REVISED JULY 1999
APPLICATION INFORMATION
VI(BATT)
R1
Vo =
(1 + =J)VNf
Minimum Vo = VNf
+5
V
Figure 20. Output Control of a Three-Terminal Fixed Regulator
Figure 21.
VI(BATT)
Hlgh~Current
Shunt Regulator
~~~-----------------------
Vo
C
(see Note A)
NOTE A. Refer to the stability boundary conditions in Figure 16 to determine allowable values for C.
Figure 22. Crowbar Circuit
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • OALLAS, TEXAS 75265
3-23
TL431 , TL431 A
ADJUSTABLE PRECISION SHUNT REGULATORS
SLVSOO5J - JULY 1978 - REVISED JULY 1999
APPLICATION INFORMATION
__ Vo = 5 V, 1.5 A
VI(BATT) _~~IN~:g~~~O~U~TtLM317
8.2 kn
Adjust
2430
0.1%
TL431
2430
0.1%
Figure 23. Precision 5-Y 1.5-A Regulator
VI(BATT)
-._---1.
) , - _ - VO=5V
Rb
(see Note A)
27.4kn
0.1%
27.4kO
0.1%
NOTE A. Rb should provide cathode current ;;,l·rnA to the TL431.
Figure 24. Efficient 5-Y Precision Regulator
12V
6.Skn
5V
10kn
10kn
0.1%
TL431
10kn
0.1%
X
Not
Used
Feedback
Figure 25. PWM Converter With Reference
~TEXAS
3-24
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TL431,TL431A
ADJUSTABLE PRECISION SHUNT REGULATORS
SLVS005J -JULY 1978- REVISED JULY 1999
APPLICATION INFORMATION
R3
(see Note A)
VI(BATT)
-+-------........."l1/li......> - - - - - - - - ,
R4
(see Note A)
R1B
R1A
Low Limit =
TL431
High Limit =
R2A
(1 + =~:)Vref
(1 + =~:)Vraf
LED on When Low Limit < VI(BATT) < High Limit
R2B
NOTE A. R3 and R4 are selected to provide the desired LED intensity and cathode current ~1 mA to the TL431 at the available VI(BATT).
Figure 26. Voltage Monitor
6500
12V-~-~~-~~
12- VV )
Delay = R x C x In ( 12 V
rel
Off
Figure 27. Delay Timer
10UI
Vref
=R+ IKA
R1 =
CL
VI(BATT)
10
hFE
+ IKA
Figure 28. Precision Current Limiter
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
3-25
TL431 , TL431 A
ADJUSTABLE PRECISION SHUNT REGULATORS
SLVSOO5J -JULY 1918 - REVISED JULY 1999
APPLICATION INFORMATION
Figure 29. Precision Constant-Current Sink
~TEXAS
3--26
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75266
TL1431
PRECISION PROGRAMMABLE REFERENCES
DECEMBER 1991- REVISED JULY 1999
•
•
•
•
•
•
OS
DPACKAGE
(TOP VIEW)
0.4% Initial Voltage Tolerance
0.2-0 Typical Output Impedance
Fast Turnon ••• 500 ns
Sink Current Capability .•. 1 mA to 100 mA
Low Reference Current (REF)
Adjustable Output Voltage ... VI(ref) to 36 V
CATHODE
ANODE
ANODE
NC
2
7
3
6
4
5
REF
ANODE
ANODE
NC
NC - No internal connection
ANODE terminals are connected internally.
description
The TL 1431 is a precIsion programmable
reference with specified thermal stability over
applicable
automotive
and
commercial
temperature ranges. The output voltage can be
set to any value between VI (ref) (approximately
2.5 V) and 36 V with two external resistors (see
Figure 16). These devices have a typical output
impedance of 0.2 O. Active output circuitry
provides a very sharp turn·on characteristic,
making these devices excellent replacements for
zener diodes and other types of references in
applications such as on·board regulation,
adjustable power supplies, and switching power
supplies.
LPPACKAGE
(TOP VIEW)
CATHODE
ANODE
REF
KTPPACKAGE
(TOP VIEW)
[Q}:
-I
ANODE
The TL 1431 C is characterized for operation over
the commercial temperature range of O°C to 70°C.
The TL1431 Q is characterized for operation over
the automotive temperature range of -40°C to
125°C.
I
__ -1
CATHODE
ANODE
REF
The ANODE terminal is in electrical contact with the
mounting base.
AVAILABLE OPTIONS
TA
PACKAGED DEVICES
PLASTIC
SMALL
TO·226AA
FLANGE
OUTLINE
(LP)
MOUNTED
(0)
(KTP)
O°Cto 70°C
TL1431 CD
TL1431CKTPR
TL1431CLP
-40°C to 125°C
TL1431QD
-
TL1431QLP
CHIP
FORM
(V)
TL1431Y
The D and LP packages are available taped and reeled. The KTP package IS only
available tape and reeled. Add the suflx R to the device type (e.g., TL1431CDR). Chip
forms are tested at 25°C.
~..~1!.=:iiJ:::II~cu::r..:~~~=.!:;
standanI WBmIn1y. Production procesaing do.. not naceesarily Include
teollng of all poramatefS.
Copyright © 1999, Texas Instruments Incorporated
-!!1TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
3-27
TL1431
PRECISION PROGRAMMABLE REFERENCES
SLVS062D - DECEMBER 1991 - REVISED JULY 1999
logic symbol
REF
ANODE
---i~..r-l--
CATHODE
functional block diagram
CATHODE
ANODE
equivalent schematlct
CATHODE~--'--------~~---'--~--'--~--~-,
20pF
3.28kO
4kO
10kO
2.4kO
7.2kO
20pF
1 kO
BOO 0
ANODE_2~,3~,6~,7-4____~_ _ _ _~~_ _ _*-~
________'-~
t All component values are nominal.
Pin numbers shown are for the 0 package.
~TEXAS
3-28
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TL1431
PRECISION PROGRAMMABLE REFERENCES
SLVS062D - DECEMBER 1991 - REVISED JULY 1999
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)t
Cathode voltage,VKA (see Note 1) .......................................................... 37 V
Continuous cathode current range, IKA ......................................... -100 mA to 150 mA
Reference input current range, II(ref) .............................................. -50 IJA to 10 mA
Package thermal impedance, 8JA (see Notes 2 and 3): D package ............................ 97°C/W
KTP package ........................ .
LP package ......................... .
156°C/W
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds ............................... 260°C
Storage temperature range, TSlg .................................................. -65°C to 150°C
t Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions' is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. All vo~age values are with respect to ANODE unless otherwise noted.
2. Maximum power dissipation is a function of TJ(max), 9JA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature Is Po = (TJ(max) - TA>/9JA. Operating at the absolute maximum TJ of 150°C can impact reliability.
3. The package thermal impedance is calculated in accordance with JESD 51 , except for through-hole packages, which use a trace
length of zero.
recommended operating conditions
Cathode voltage, VKA
Cathode current, IKA
I TL1431C
I TL1431Q
Operating free-air temperature, TA
MIN
MAX
VI(re!)
1
36
V
100
mA
0
70
-40
125
UNIT
°C
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
3-29
TL1431
PRECISION PROGRAMMABLE REFERENCES
SLVS062D- DECEMBER 1991 - REVISED JULY 1999
electrical characteristics at specified free-air temperature, IKA = 10 mA (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TAt
TL1431C
TEST
CIRCUIT
25°C
TL1431Q
MIN
TYP
MAX
MIN
TYP
MAX
2490
2500
2510
2490
2500
2510
2520
2470
UNIT
VI (ref)
Reference
Input voltage
VKA = VI (ref)
VI (dev)
Deviation of
reference input
voltage over full
temperature range:!:
VKA=VI(ref)
Full
range
1
4
20
17
55
mV
AVI(ref)
AV KA
Ratio of change in
reference input
voltage to the
change In cathode
voltage
INKA= 3 Vt036V
Full
range
2
-1.1
-2
-1.1
-2
mVN
Reference
Input current
1.5
2.5
1.5
2.5
II(ref)
R1 = 10 kO,
Deviation of
reference input
current over full
temperature range:!:
R1 =10kO,
Minimum
cathode current
for regulation
VKA = VI (ref) to 36 V
loff
Off-state
cathode current
VKA=36V,
IZKAI
Output impedance§
VKA = VI(ref), f ~ 1 kHz,
IKA=1 mAt0100mA
II(dev)
f--Full
range
1
2480
25°C
R2 =00
~
2
3
range
R2=00
3
tJA
Full
range
2
0.2
1.2
0.5
1.2
tJA
25°C
1
0.45
1
0.45
1
mA
0.18
0.5
0.18
0.5
25°C
VI(ref)=O
mV
2530
f--Full
range
3
25°C
1
2
0.2
0.4
IlA
2
0.2
0.4
Q
t Full range is O·C to 70°C for C-suffix devices and -40°C to 125°C for a-suffix devices.
:!: The deviation parameters VI(dev) and II(dev) are defined as the differences between the maximum and minimum values obtained over the rated
temperature range. The average full-range temperature coefficient of the reference input voltage etvl(ref) is defined as:
let
I(ppm)
VI(ren
"C
=
(
VI(dev)
I
) X 106
Max VI(ref)
vl(ref) at 25°C
AT A
where:
ATA is the rated operating temperature range of the device.
--------------i-r
VI(dev)
Min VI(ref)
--------------~-~
I
I
etvl(ref) is positive or negative depending on whether minimum VI(ref) or maximum VI(ref)' respectively, occurs at the lower temperature.
§ The output impedance is defined as: IZKAI =
~~ KA
KA
When ihe device is operating with two external resistors (see Figure 2), the total dynamiC impedance of the circuit is given by: 1z'1
which Is approximately equal to IZKAI (1
+ :).
~1EXAS
3-30
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
= ~y,
TL1431
PRECISION PROGRAMMABLE REFERENCES
SLVS062D- DECEMBER 1991- REVISED JULY 1999
electrical characteristics at IKA = 10 mA, TA = 25°C
TEST CONDITIONS
PARAMETER
MIN
TYP
MAX
2490
2500
2510
-1.1
-2
UNIT
VI (ref)
Reference input voltage
VKA=VI(ref)
1
AVI(ref)
AV KA
Ratio of change in reference input voltage
to the change in cathode voltage
AVKA=3Vt036V
2
II(ref)
Reference input current
R1 = 10 kO,
2
1.44
2.5
IlA
IKAmin
Minimum cathode current for regulation
VKA = VICref\ to 36 V
1
0.45
1
mA
loff
Off-state cathode current
VKA=36V,
3
0.18
0.5
IlA
Output impedance t
VKA = VI(ref), f ~ 1 kHz,
IKA=1 mAt0100mA
1
0.2
0.4
n
IZKAI
t
TL1431Y
TEST
CIRCUIT
The output impedance is defined as: Iz'l =
R2=oo
Vref= 0
mV
mVN
~~
AV
When the device is operating with two extemal resistors (see Figure 2), the total dynamic impedance of the circuit is given by: IZKAI = AI;::'
which is approximately equal to IZKAI (1
+
~~).
PARAMETER MEASUREMENT INFORMATION
(
n
I
I(ppm) =
VI(ref)
"C
I
vl(dev) ) X 106
vl(ren at 25°C
ATA
Max VI(ref)
------:::,,;;;;;--;,,;;;;;.:----1T
I VI(dev)
where:
ATA is the rated operating temperature range of the device.
Min VI(ref)
--------------~-~
I
I
~I
Input -'VV\r-~'---- VKA
Input
--Wlr-~'----
VKA
R1
R2
Figure 1_ Test Circuit for V(KA)
= Vref
VKA -_ VI(ref) (1R
+1
R2)
+ II(ref)
x R1
Figure 2_ Test Circuit for V(KA) > Vref
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
3--31
TL1431
PRECISION PROGRAMMABLE REFERENCES
SLVS062D - DECEMBER 1991 - REVISED JULY 1999
Input --'lNIr-'---VKA
Figure 3. Test Circuit for loff
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS, TEXAS 75265
TL1431
PRECISION PROGRAMMABLE REFERENCES
SLVS062D - DECEMBER 1991 - REVISED JULY 1999
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
Reference voltage vs Free-air temperature
Reference current vs Free-air temperature
Cathode current vs Cathode voltage
Off-state cathode current vs Free-air temperature
4
5
6, 7
Ratio of delta reference voltage to delta cathode voltage vs Free-air temperature
8
9
Equivalent input noise voltage vs Frequency
10
Equivalent input noise voltage over a 1o-second time period
11
Small-signal voltage amplification vs Frequency
12
Reference impedance vs Frequency
13
Pulse response
14
Stability boundary conditions
15
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
3-33
TL1431
PRECISION PROGRAMMABLE REFERENCES
SlVS062D-DECEMBER 1991-REVISEDJULY 1999
TYPICAL CHARACTERISTICSt
REFERENCE VOLTAGE
2.52
I
REFERENCE CURRENT
va
va
FREE-AIR TEMPERATURE
FREE-AIR TEMPERATURE
2.5
I
IKA=10mA
R1 = 10 kg
R2=oo
VI(ref) .. vKA
IKA .. 10mA
>
I
;
c::I.
2.51
-
I ~
u
...............
2.49
2.48
-50
-25
........
~
~
I
i'
~
2
I
"
"
1.5
-r--
I'--
I
I
J
~
0
25
50
75
100
TA - Free-Air Temperature - °C
0.5
o
-50
125
-25
0
25
50
75
100
TA - Free-Air Temperature - °C
Figure 4
CATHODE CURRENT
vs
va
CATHODE VOLTAGE
CATHODE VOLTAGE
SOD
150
VKA = VI(ref)
TA = 25°C
VKA=V~ref)
TA .. 25°
100
c
U
i
~I
600
c
E
I
::I.
I
50
C
~
0
u
-50
"
~
400
J
GI
0
200
/
I
~
~
0
-100
-200
-150
-3
125
FigureS
CATHODE CURRENT
'E
~
::I
-
~
-2
-1
0
VKA - Cathode Voltage - V
2
3
-2
-1
o
I'
2
3
4
VKA - Cathode Voltage - V
Figure 6
Figure 7
t Data at high and low temperatures are applicable only within the recommended operating free-air temperature ranges of the various devices.
~.TEXAS
INSTRUMENTS
POST OFFICE SOX 655303 • DALLAS, TEXAS 75265
TL1431
PRECISION PROGRAMMABLE REFERENCES
SLVS062D - DECEMBER 1991 - REVISED JULY 1999
TYPICAL CHARACTERISTICSt
RATIO OF DELTA REFERENCE VOLTAGE TO
DELTA CATHODE VOLTAGE
OFF·STATE CATHODE CURRENT
VB
VB
FREE·AIR TEMPERATURE
FREE·AIR TEMPERATURE
0.4
-0.85
VKA1=36V I
C
::l.
0.35
VKA=3 Vto36 V
VI(ref) = 0
-0.95
I
C
~
::I
~
(.)
I
~
E
0.25
-1.05
I
~
0.2
~
-1.15
0.15
>
IO=10mA
TA = 25°C
240
c
I
t
~
220
200
CD
.~
z
180
\
\
!i
D.
.5
160
C
.!!
!:
140
'5
IT
w
I
120
>c
\
"""--
100
10
100
1k
10 k
100k
f - Frequency - Hz
Figure 10
t Data at high and low temperatures are applicable only within the recommended operating free-air temperature ranges of the various devices.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TL1431
PRECISION PROGRAMMABLE REFERENCES
SLVS062D - DECEMBER 1991 - REVISED JULY 1999
TYPICAL CHARACTERISTICS
EQUIVALENT INPUT·NOISE VOLTAGE
OVER A 1()"SECOND PERIOD
6
5
>::I.
I
J
~
·z1
i
.E
C
.!!
1
::I
CT
4
I
3
2
1
~,
"
A
0
_.
IV
-1
-2
-3
\I
1111
II 1I &I1JII I
I
'I ru
I
II
",
, "1
I I
w
-4
I
>c -5
-6
bMaW
1= 0.1 to 10 Hz
IKA=10mA
TA=25°C
o
2
4
6
8
10
t-llme-s
19.1 V
Vee
VCC
5OOI1F
8200
160
-::-
0.111F
VEE
VEE
TEST CIRCUIT FOR 0.1·Hz TO 100Hz EQUIVALENT INPUT·NOISE VOLTAGE
Figure 11
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TL1431
PRECISION PROGRAMMABLE REFERENCES
SLVS062D - DECEMBER 1991 - REVISED JULY 1999
TYPICAL CHARACTERISTICS
SMALL-SIGNAL VOLTAGE AMPLIFICATION
vs
FREQUENCY
60
'i~A= 10mA
ID
"c
TA=25°C
I
.2
50
IE
40
==
30
!
'i"
.I(K)
~,
15 k.Q
~
\
ii
c
aI
iii
20
1\
iiiE
C/)
I
. - - - -....- ; - -.....> - - - Output
....--~.-__-~-GND
~-
10
TEST CIRCUIT FOR VOLTAGE AMPLIFICATION
l
~
o
1k
10k
100k
1M
f - Frequency - Hz
10M
Figure 12
REFERENCE IMPEDANCE
VB
FREQUENCY
100
IKA=1 mAto 100 mA
TA = 25°C
c::
I
3c
I'"
1 k.Q
Output
•
I(K)
10
.§
son
3c
I!!
.;a:
L-_~
I
_ _ _ _ _ _ _" " _ _ _
GND
-~
~
V
0.1
1k
10k
100 k
TEST CIRCUIT FOR REFERENCE IMPEDANCE
1M
10M
f - Frequency - Hz
Figure 13
~TEXAS
INSTRUMENTS
POST OFFICE BOX 65S303 • DALLAS, TEXAS 75265
3-37
TL1431
PRECISION PROGRAMMABLE REFERENCES
SLVS062D - DECEMBER 1991 - REVISED JULY 1999
TYPICAL CHARACTERISTICS
PULSE RESPONSE
6
TA
=25°C
I
r----e---'I/IIIr--.--e~--
5
>
2200
YI
Input
Output
I
J
Ii
4
3
Pulse
Generator
f= 100kHz
Output
500
/
2
i
' - - - -....- - - - . . - -......- - - GND
TEST CIRCUIT FOR PULSE RESPONSE
o
o
2
3
4
6
5
7
t- Time-lIS
Figure 14
1500
STABILITY BOUNDARY CONDITIONSt
100~~~~--~~~~~~-rrTnTn
90
80
A·YKA = YI(ref)
I~I ~ ~~ ~~
B·YKA = 5 Y
+++~H-"I-H+HflITA = 250C
C·YKA=10Y
1111'"
D·YKA = 15 Y
III
+
YBATT
1 II I++HI+
JJ1
IH+H-H-+++++HH-+++IIIH+H
70 H-H+'-I+H
60
H-++++l-II++l
1111-+-HI+IfI-I-"'+-I-I-+-H-I-H+-I-I++Ste++ble+-H
Steble
B
"::"
C
TEST CIRCUIT FOR CURVE A
A
=
~~++~~-r~~~~++~~-H~*H
R1
10kO
D
20 t-+t-++++t+t-HI/'l+hH+tf-H::r++i'*H~Ht-lH-ttH
10rrrH~~~*~*+~~~~~m,H+~
O~~~~~~~~~~~~~~~
0.001
0.01
0.1
10
CL - Load Capacltence - J.LF
t The areas under the curves represent conditions that may cause the
device to oscillate. For curves B, C, and D. R2 and V+ are adjusted to
esteblishthe initial VKA and IKA conditions with CL O. VBATT and CL
are then adjusted to determine the ranges of stability.
=
R2
"::"
TEST CIRCUIT FOR CURVES B, C, AND D
Figure 15
~TEXAS
3-38
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TL1431
PRECISION PROGRAMMABLE REFERENCES
SLVS062D- DECEMBER 1991 - REVISED JULY 1999
APPLICATION INFORMATION
Table of Application Circuits
APPLICATION
FIGURE
Shunt regulator
16
Single-supply comparator with temperature-compensated threshold
17
Precision high-current series regulator
18
Output control of a 3-terminal fixed regulator
19
Higher-current shunt regulator
20
Crowbar
21
Precision 5-V, 1.5-A, 0.5% regulator
22
5-V precision regulator
23
PWM converter with 0.5% reference
24
Voltage monitor
25
Delay timer
26
Precision current limiter
27
Precision constant-current sink
28
R
V(BATT) -'I/V'v-.....- - -....-
V(BATT)
Vo
Rl
0.1%
VI(ref) ....--+-.1..
....- - V o
TLI431
Von=2V
Voff = V(BATT)
R2
0.1%
Vo =
Input
-~W\r--t-. .
TLI431
VIT= 2.5 V
(1 + =~)VI(ref)
GND
NOTE A. R should provide cathode current;;,1 mA to the TL 1431 at
minimum V(BATT)'
Figure 16. Shunt Regulator
Figure 17_ Single-Supply Comparator
With Temperature-Compensated Threshold
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
3-39
TL1431
PRECISION PROGRAMMABLE REFERENCES
SLVS062D- DECEMBER 1991- REVISED JULY 1999
APPLICATION INFORMATION
V(BATT)
V(BATT) - . - - - - - - - - - - - ,
t-'0=-'U...,T......-
VO
R1
TL1431
TL1431
Vo =
(1 + :)V1(ref)
v=
R2
(1 + =~)Vl(ref)
Min V
NOTE A. R should provide cathode current <:1 rnA to the TL 1431 at
minimum V(BATT).
=VI(ref) + 5 V
Figure 19. Output Control of a
Three-Terminal Fixed Regulator
Figure 18. Precision High-Current Series Regulator
V(BATT)- lo-.-----~------~--VO
R
V(BATT)--W'v-.------..----~~
Vo
Vo
= (1 + :)V1(ref)
NOTE A. Refer to the stability boundary conditions in Figure 15 to
determine allowable values for C.
Figure 20. Higher-Current Shunt Regulator
~TEXAS
3-40
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
Figure 21. Crowbar
TL1431
PRECISION PROGRAMMABLE REFERENCES
SLVS062D - DECEMBER 1991 - REVISED JULY 1999
APPLICATION INFORMATION
Vo = 5 V
V(BATT)
Out
Rb
1---.-- Vo =5 V, 1.5 A, 0.5%
V(BATT)
27.4kO
0.1%
2430
0.1%
TL1431
27.4kO
0.1%
2430
0.1%
-=-
NOTE A. Rb should provide cathode current ~1 rnA to the TL 1431.
Figure 22. Precision 5-V, 1.5-A, 0.5% Regulator
Figure 23. 5-V Precision Regulator
12V
6.8kO
vee
10kO
5V+0.5%
10kO
0.1%
TL1431
10kO
0.1%
X
TL598
Not
Used
-=-=-
Feedback
Figure 24. PWM Converter With 0.5% Reference
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
3-41
TL1431
PRECISION PROGRAMMABLE REFERENCES
SLVS062D - DECEMBER 1991 - REVISED JULY 1999
APPLICATION INFORMATION
R3
V(BATT) ---4____-----.~VVI,---4____- _ ,
R4
R1A
TL1431
2kn
R
TL1431
TL1431
R2A
Low Limit = ( 1
680n
12V-----4____---~Ar~__,
R2B
+
Off
R1B)
R2B V I(ref)
LED on When
'ion
C
,,\(j
R1A)
Low Limit < V(BATT) < High Limit
High Limit = ( 1 + R2A VI(ref)
12 V
Delay = R x C x 11(12 V) - VI(ref)
NOTE A. Select R3 and R4 to provide the desired LED intensity and
cathode current ~1 mA to the TL 1431.
Figure 25. Voltage Monitor
Figure 26. Delay Timer
V(BATT)
VI(ref)
10 =-R-+IKA
CL
R1 =
V
(BATT)
(~~E) +
I
IKA
Figure 27. Precision Current limiter
3-42
_ vl(ref)
O-AS
Figure 28. Precision Constant-Current Sink
:'I
TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75285
This Page Intentionally Left Blank
This Page Intentionally Left Blank
TLV431, TLV431A
LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS
REVISED JULY 1999
•
•
•
•
•
•
D8
DPACKAGE
(TOP VIEW)
Low-Voltage Operation ••• Down to 1.24 V
1% Reference-Voltage Tolerance (TLV431A)
Adjustable Output Voltage, Vo = Vref to 6 V
Low Operational Cathode Current ••• 80 Jl.A Typ
0.25-0 Typical Output Impedance
Package Options Include Plastic Small-Outline
(D), SOT-23 (DBy), and Cylindrical (LP)
Packages
CATHODE
REF
ANODE 2
7 ANODE
ANODE 3
6 ANODE
NC45NC
NC - No internal connection
DBVPACKAGE
(TOP VIEW)
description
The TLV431 and TLV431A are low-voltage
three-terminal adjustable voltage references with
specified thermal stability over applicable
industrial and commercial temperature ranges.
Output voltage can be set to any value between
Vref (1.24 V) and 6 V with two external resistors
(see Figure 2). The TLV431 and TLV431 A operate
from a lower voltage (1 .24 V) than the widely used
TL431 and TL 1431 shunt-regulator references.
NC
ANODE
NC
CATHODE
REF
NC - No internal connection
LPPACKAGE
(TOP VIEW)
When used with an optocoupler, the TLV431 and
TLV431A are ideal voltage references in isolated
feedback circuits for 3-V to 3.3-V switching-mode
power supplies. These devices have a typical
output impedance of 0.25 O. Active output
cirCUitry provides a very sharp turn-on
characteristic, making the TLV431 and TLV431A
excellent replacements for low-voltage zener
diodes in many applications, including onboard
regulation and adjustable power supplies.
CATHODE
ANODE
REF
The TLV431C and TLV431AC devices are characterized for operation from O°C to 70°C. The TLV431I and
TLV431AI devices are characterized for operation from -40°C to 85°C.
AVAILABLE OPTIONS
PACKAGED DEVICES
TA
T0-92
(LP)
sOle
(D)
SOT-23
(DBY)
O°C to 70°C
TLV431CLP
TLV431 ACLP
-
TLV431CDBV
TLV431 ACDBV
-40°C to 85°C
TLV4311LP
TLV431AILP
TLV4311D
TLV431 AID
TLV4311DBV
TLV431AIDBV
CHIP
FORM
(V)
TLV431Y
The LP package is available taped and reeled. Add the suffix R to the device type
(e.g., TLV431 ACLPR). The D and DBV are available only taped and reeled (e.g.,
TLV431 lOR). Chip forms are tested at 25°C.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Copyright © 1999, Texas Instruments Incorporated
3-45
TLV431,TLV431A
LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS
SLVS139C-JULY 1996-REVISEDJULY 1999
logic symbol
ANODE
_-l~.EFr--_
CATHODE
logic diagram (positive logic)
CATHODE
ANODE
equivalent schematic
CATHODE
REF
ANODE
~TEXAS
INSTRUMENTS
POST OFFICE BOX e55303 • DALlAS. TEXAS 75265
TLV431, TLV431A
LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS
SLVS139C - JULY 1996 - REVISED JULY 1999
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)t
Cathode voltage, VKA (see Note 1) ........................................................... 7 V
Continuous cathode current range, IK ............................................ -20 mA to 20 mA
Reference current range, Iref ................................................... -0.05 mA to 3 mA
Package thermal impedance, 8JA (see Notes 2 and 3): D package ............................ 97°CIW
DBV package ....................... .
LP package ......................... .
156°CIW
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds ........ . . . . . . . . . . . . . . . . . . . . . .. 260°C
Storage temperature range, Tstg .................................................. -65°C to 150°C
t Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only. and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not
Implied. Exposure to absolute-maximum-rated condHions for extended periods may affect device reliability.
NOTES: 1. Voltage values are with respect to the anode terminal unless otherwise noted.
2. Maximum power dissipation is a function of TJ(max). 6JA. and TA. The maximum allowable power diSSipation at any allowable
ambienttemperature is PD = (TJ(max) - TAltaJA. Operating at the absolute maximum TJ of 150°C can impact reliability.
3. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace
length of zero.
recommended operating conditions
Cathode voltage, VKA
Cathode current, 'K
I TLV431C, TLV431AC
Operating free-air temperature range, TA
I TLV431I, TLV431AI
MIN
MAX
Vref
0.1
6
V
15
rnA
0
70
-40
85
UNIT
°C
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
3-47
TLV431,TLV431A
LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS
SLVS139C-JULY 1996 - REVISED JULY 1999
electrical characteristics at 25°C free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TA=25°C
Vref
Reference voltage
VKA=Vref,
IK= 10mA
Vref(dev)
Vref deviation
over full temperature range
(see Note 5)
VKA = Vref, IK = 10 mA,
(see Note 4 and Figure 1)
AVref
AVKA
Ratio of Vref change
in cathode voltage change
IK=10mA,
(see Figure 2)
Iref
Reference terminal current
TLV431C
TLV431 I
MIN
TYP
MAX
MIN
TYP
MAX
1.222
1.24
1.258
1.222
1.24
1.258
1.27
1.202
TA = full range
(see Note 4 and
Figure 1)
1.21
1.278
UNIT
V
4
12
6
20
-1.5
-2.7
-1.5
-2.7
mVN
IK = 10 mA, R1 = 10 kO, R2 = open
(see Figure 2)
0.15
0.5
0.15
0.5
I1A
Iref(dev)
Iref deviation
over full temperature range
(see Note 5)
IK = 10 mA, R1 = 10 kO, R2 = open
(see Note 4 and Figure 2)
0.05
0.3
0.1
0.4
I1A
IK(min)
Minimum cathode current
for regulation
VKA=Vref
(see Figure 1)
55
80
55
80
I1A
IK(off)
Off-state cathode current
VKA=6V,
(see Figure 3)
Vref=O
0.001
0.1
0.001
0.1
I1A
IZKAI
Dynamic impedance
(see Note 6)
VKA = Vref, f S 1 kHz,
IK= 0.1 mAto 15 mA
(see Figure 1)
0.25
0.4
0.25
0.4
0
VKA = Vref to 6 V,
mV
NOTES: 4. Full range IS --40°C to 85°C for the TLV431I, and O°C to 70°C for the TLV431 C.
5. The deviation parameters Vref(dev) and Iref(dev) are defined as the differences between the maximum and minimum values obtained
over the rated temperature range. The average full-range temperature coefficient of the reference input voltage, avref' is defined
as:
I I(~
ppm)=
aVrei
( vrel(dev) ) X 106
~
ATA
where:
ATA is the rated operating temperature range of the device.
aVref can be positive or negative, depending on whether minimum Vref or maximum Vref, respectively, occurs at the lower
temperature.
6. The dynamic impedance is defined as:
IZKAI
AV
= AI KA
KA
When the device is operating with two extemal resistors (see Figure 2), the total dynamic Impedance of the circuit Is given by:
IZKAI = ~y = IZKAI x (1 + ~~)
~TEXAS
3--48
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TLV431, TLV431A
LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS
SLVS139C-JULY 1996 - REVISED JULY 1999
electrical characteristics at 25°C free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MAX
MIN
TYP
MAX
TA=25°C
1.228
1.24
1.252
1.228
1.24
1.252
TA = full range,
(see Note 4 and
Figure 1)
1.221
1.259
1.215
Vref
VKA=Vref,
IK=10mA,
Vref(dev)
Vref deviation
over full temperature range
(see Note 5)
VKA = Vref, IK = 10 rnA
(see Note 4 and Figure 1)
AVref
AVKA
Ratio of Vref change
in cathode voltage change
IK=10mA,
(see Figure 2)
Iref
Reference terminal current
IK=10mA,
(see Figure 2)
Iref(dev)
Iref deviation
over full temperature range
(see Note 5)
IK = 10 rnA, Rl = 10 k.Q, R2 = open
(see Note 4 and Figure 2)
IK(min)
Minimum cathode current
for regulation
VKA= Vref
(see Figure 1)
Off-state cathode current
VKA=6V,
(see Figure 3)
Vref=O,
Dynamic impedance
(see Note 6)
VKA = Vref, f S 1 kHz,
IK=O.l rnA to 15 rnA
(see Figure 1)
IZKAI
TLV431AI
TYP
Reference voltage
IK(off)
TLV431AC
MIN
1.265
UNIT
V
4
12
6
20
-1.5
-2.7
-1.5
-2.7
0.15
0.5
0.15
0.5
I1A
0.05
0.3
0.1
0.4
I1A
55
80
55
80
I1A
0.001
0.1
0.001
0.1
I1A
0.25
0.4
0.25
0.4
n
VKA= Vrefto 6 V
Rl = 10kn
mV
mVN
NOTES: 4. Full range is -40°C to 85°C for the TLV431I, and O°C to 70°C for the TLV431 C.
5. The deviation parameters Vref(dev) and Iref(dev) are defined as the differences between the maximum and minimum values obtained
over the rated temperature range. The average full-range temperature coefficient of the reference Input voltage, o.v ref' is defined
as:
I I("c""
ppm)=
o.v ref
(
vre~dev)
~
) X 106
AT A
where:
ATA is the rated operating temperature range of the device.
Vref.
= VKA = Vref x (1 + R1/R2) + lref x R1
Vo
Input -'V\I'v-._-- Vo
+
IK(off)
Figure 3. Test Circuit for IK(off)
="TEXAS
3-50
INSTRUMENTS
POST OFFICE BOX 655303 • OALLAS. TEXAS 75265
TLV431, TLV431A
LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS
SLVSl39C - JULY 1996 - REVISED JULY 1999
PARAMETER MEASUREMENT INFORMATIONt
REFERENCE VOLTAGE
vs
JUNCTION TEMPERATURE
1.254
I
REFERENCE INPUT CURRENT
vs
JUNCTION TEMPERATURE
250
I
I
IK=10mA
,
>
I
1.252
C
c
I
1.250
~
3c
I!!
1.248
1.246
!
1.244
!
1.242
,/'
I
>
1.240
200
15
~
:::I
II
"'-
(.)
-
i
.5
I!!
ilII:
100
I
!
-25
0
25
50
75
100
125
50
-50
150
'" "
'"
"-
150
3c
V
/
1.238
-50
V
./
~
IK= 10mA
Rl = 10 kn
R2 = Open
-25
TJ - Junction Temperature - °C
i'-..
0
25
50
75 100 125
TJ - Junction Temperature - °C
Figure 4
150
FigureS
CATHODE CURRENT
vs
CATHODE VOLTAGE
CATHODE CURRENT
vs
CATHODE VOLTAGE
15
250
VKA = Vref
TA = 25°C
200
VKA = Vret
TA=25°C
10
150
C
C
E
I
::I.
5
I
15
~:::I
15
i
(.)
0
(
i
~
(.)
i
I
I
-100
-10
-15
-1
~
0
-50
~
~
50
.J:.
lj
-5
100
-150
-200
I
-G.5
o
0.5
VKA - Cathode Voltage - V
1.5
-250
-1
Figure 6
-G.5
o
0.5
VKA - Cathode Voltage - V
1.5
Figure 7
t Operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions· is not implied.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
3-51
TLV431, TLV431A
LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS
SLVS139C - JULY 1996 - REVISED JULY 1999
PARAMETER MEASUREMENT INFORMATIONt
OFF-STATE CATHODE CURRENT
VB
JUNCTION TEMPERATURE
.Ii'
40
VKA =5V
Vref= 0
c(
C
I
fl ~E
c
l!!
=
0
J
-0.2
I
it
-0.3
& -8
-0.4
-
-
r-
~
!~
20
"5
!!i
I
-0.1
:I::
C
30
~
~
0
~
I
J.
RATIO OF DELTA REFERENCE VOLTAGE
TO DELTA CATHODE VOLTAGE
VB
JUNCTION TEMPERATURE
'\
0
.2
i
II:
J!I
"\iio -0.5
121
~
)
~o
..
~O
10
-25
o
25
50
75
)
~
100
\
-0.6
-0.7
r-
IK=10mA
AVKA = Vref to 6 V
-0.8
-50
125
~
I
I
-25
TJ - Junction Temperature - °C
I
o
25
50
75
100
125
150
TJ - Junction Temperature - °C
Figure 9
Figure 8
PERCENTAGE CHANGE IN Vref
VB
OPERATING LIFE AT 55°C
0.025
I
IK=1 mA
If.
0
I
>!
..
-0.025
.c
-0.05
.5
DI
C
c
I
I>
DI
1kn
300
A!
470 I1F
~
Iz
250
750U
TLE2027
\[\.
TP
'S
D-
TLV431
or
TLV431A
.5
C
i
T+
200
~
CJ'
W
"
-=-
160 k!l
160U
I
TEST CIRCUIT FOR EQUIVALENT NOISE VOLTAGE
>c
150
10
100
10 k
1k
f- Frequency - Hz
100k
Figure 11
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
3-53
TLV431, TLV431A
LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS
SLVSl39C - JULY 1996 - REVISED JULY 1999
PARAMETER MEASUREMENT INFORMATION
EQUIVALENT INPUT NOISE VOLTAGE
OVER A 10-8ECOND PERIOD
10
>::I.
1=0.1 Hz to 10 Hz
IK= 1 mA
TA = 25°C
8
I
t
~
J
:;
a.
.5
I
~
6
~ Hi
VI .I
2
o II. ~
V,
II
-2
"~
~P1lll
IA
AI
Ilrq.(i ~
'U"I
-4
.B"
-6
::'
-8
I
II
4
-10
o
2
4
6
t-TIme-s
~
8
10
3V
470 I1F
T+
"q
• Y"1Ol
820n
TLV431
or
-::-
TLV431A
16n
TEST CIRCUIT FOR 0.1-Hz TO 1D-Hz EQUIVALENT NOISE VOLTAGE
Figure 12
~TEXAS
INSTRUMENTS
3-54
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLV431, TLV431A
LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS
SLVS139C-JULY 1996- REVISED JULY 1999
PARAMETER MEASUREMENT INFORMATION
SMALL-SIGNAL VOLTAGE GAIN
IPHASE MARGIN
vs
FREQUENCY
0°
r-r-.
IK=10mA
TA = 25°C
~
r-...
36°
Output
!:
.c
..
72·
III
108°
.l1!
6.8 k.Q
GI
~IK
1800
Ii.
10j!F
144°
~
-=- 5V
180°
4.3 k.Q
"
L - - -__- - - - - -__
~~
__--GND
TEST CIRCUIT FOR VOLTAGE GAIN AND PHASE MARGIN
>
-20
100
oC
1k
10 k
100 k
1M
f - Frequency - Hz
Figure 13
REFERENCE IMPEDANCE
vs
FREQUENCY
100
IK= 0.1 mAto 15 mA
TA=25°C
c:
I
rl
-
10
i
1000
.----.I-'\iVv-...._--.-----
I
j
1000
I
-:
!!
Output
L....----4III---_-.......- - - GND
0.1
TEST CIRCUIT FOR REFERENCE IMPEDANCE
0.01
1k
10 k
100 k
1M
10M
f - Frequency - Hz
Figure 14
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
3-55
TLV431,TLV431A
LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS
SLVS139C-JULY 1996- REVISED JULY 1999
PARAMETER MEASUREMENT INFORMATION
PULSE RESPONSE 1
3.5
lInput_I
3
>
I
R=18kO
TA = 25°C
18kO
.-----.-'lNv--4I--.-- Output
2.5
III
I
~
'$
!
0
2
1.5
Pulse
Generator
f = 100 kHz
Output
50 D
'U
C
I'D
'$
ICI.
.5
\
0.5
\
0
~.5
GND
o
2
3
4
5
TEST CIRCUIT FOR PULSE RESPONSE 1
678
t- TIme - IlS
Figure 15
PULSE RESPONSE 2
3.5
I
>
I
R=1.8kD
TA = 25°C
1
Input
3
1.8kO
,..----.-'lNv--4I--.-- Output
2.5
III
I
~
'$
!0
2
1.5
Pulse
Generator
f= 100 kHz
Output
50 D
'U
C
I'D
'$
ICI.
.5
GND
0.5
~
0
~.5
o
2
3
4
5
TEST CIRCUIT FOR PULSE RESPONSE 2
6
7
8
t-TIme-1lS
Figure 16
~TEXAS
INSTRUMENTS
3-56
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
TLV431,TLV431A
LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS
SLVS139C-JULY 1996 - REVISED JULY 1999
PARAMETER MEASUREMENT INFORMATIONt
STABILITY BOUNDARY CONDITIONt
c
E
I
1
Ie
8 I--l--++H-HII---+- VKA
=2 V
ble
H-I+Hllf--I-++++1+II
r'""'i\
J
6~rr~*,I~~fflr-r*H~-+~fflffl
J!.
4
I
I
2 1-t-++t+ttlf-V-hA- VKA
o
=3 V
-H+Hl\--t-+-H+HlI
~.-w......oI:I:v~....I..L+Hif1.1.J.1.L.1L-.J1u....L:1
LJ.LWI...L....L...J..\UJW
0.01
0.1
10
0.001
CL - Load Capacitance -I1F
1500
TEST CIRCUIT FOR VKA
1500
=Vref
TEST CIRCUIT FOR VKA
=2 V, 3 V
:I: The areas under the curves represent conditions that may cause the device to oscillate. For VKA = 2-V and 3-V curves, R2 and Vbat were
adjusted to establish the initial VKA and 'K conditions with CL
=O. Vbat and CL then were adjusted to determine the ranges of stability.
Figure 17
t
Operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions' is not implied.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
3-57
TLV431, TLV431A
LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS
SLVS139C - JULY 1996 - REVISED JULY 1999
APPLICATION INFORMATION
Figure 18 shows the TLV431 or TLV431A used in a 3.3-V isolated flyback supply. Output voltage Vo can be as low
as reference voltage Vref (1.24 V ± 1%). The output of the regulator, plus the forward voltage drop of the optocoupler
LED (1.24 + 1.4 = 2.64 V), determine the minimum voltage that can be regulated in an isolated supply configuration.
Regulated voltage as low as 2.7 Vdc is possible using the circuit in Figure 18.
VI
120V
IS-~r-'-__~~VO
3.3V
Gate Drive
VCCr--t~t-~~----~
Controller
Current
Sense
or
TLV431A
GND
p
p
Figure 18. Flyback With Isolation USing TLV431 or TLV431A as Voltage Reference and Error Amplifier
~1ExAs
INSTRUMENTS
3-58
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
General Information (Vol. 1)
Linear Voltage Regulators
Shunt Regulators
Precision Virtual Grounds
Mechanical Data
General Information (Vol. 2)
Processor PS Controllers
Switching PS and DC/DC Converters
MOSFET Drivers
Supervisors
Mechanical Data
General Information (Vol. 3)
Power Distribution Switches
LED Drivers
Voltage Rail Splitters
Special Functions
Mechanical Data
4-1
...."
_._.
o
:s
_.
<
(I)
(')
tn
::1-
cQ)
-
...
C)
o
c
:s
Co
tn
4-2
TLE2425, TLE2425V
PRECISION VIRTUAL GROUND
• 2.5-V Virtual Ground for 5-V/GND Analog
Systems
• Excellent Regulation
- Output Regulation
-45 ~V Typ at 10
+15 ~V Typ at 10
- Input Regulation
Characteristics
=0 to -10 mA
=0 to +10 mA
=1.5 ~V/v Typ
• Self-Contained in Small-Outline,
Dual-In-Line or 3-Terminal TO-22SAA
Packages
• Low-Impedance Output •.. 0.0075 Q Typ
• High Output-Current Capability
Sink or Source •.. 20 mA Typ
• Macromodellncluded
• Micropower Operation ..• 170 !lA Typ
OUTPUT REGULATION
description
100
VI=5V
In signal-conditioning applications using a single
power source, a reference voltage is required for
termination of all signal grounds. To accomplish
this, engineers have typically used solutions
consisting of resistors, capacitors, operational
amplifiers, and voltage references. Texas Instruments has eliminated all of those components
with one easy-to-use 3-terminal device. That
device is the TLE2425 precision virtual ground.
80
/
60
TA=-40°C
WTA=O°C
40
TA = -55°C---1~
20
i
Jl~
/. l..& ~-
o
TA=25°C
-20
l
l4 ~
TA= 125°C
TA=25°C._
~ iI""
o -40
V
Use of the TLE2425 over other typical circuit
I
",
o
solutions gives the designer increased dynamic
~
TA=1250C
~ -60
signal range, improved signal-to-noise ratio,
?'"
I
I
lower distortion, improved signal accuracy, and
TA
=
-55°C
-80 easier interfacing to ADCs and DACs. These
-100
benefits are the result of combining a precision
-10 -8 -6 -4 -2
o 2 4 6 8 10
micropower voltage reference and a high-perfor10 - Output Current - mA
mance precision operational amplifier in a single
silicon chip. It is the precision and performance of these two circuit functions together that yield such dramatic
system-level performance.
~i'-.
i2:
I
i I I
The TLE2425 improves input regulation as well as output regulation and, in addition, reduces output impedance
and power dissipation in a majority of virtual-ground-generation circuits. Both input regulation and load
regulation exceed 12 bits of accuracy on a single 5-V system. Signal-conditioning front ends of data acquisition
systems that push 12 bits and beyond can use the TLE2425 to eliminate a major source of system error.
The TLE2425C is characterized for operation from O°C to 70°C. The TLE24251 is characterized for operation
from -40°C to 85°C. The TLE2425M is characterized for operation over the full military temperature range of
-55°C to 125°C.
AVAILABLE OPTIONS
PACKAGED DEVICES
TA
SMALL OUTLINE
(D)
CERAMIC DIP
(JG)
PLASTIC
To-226AA
(LP)
CHIP FORM
(V)
TLE2425Y
O°C to 70°C
TLE2425CD
-
TLE2425CD
-40°C to 85°C
TLE24251D
-
TLE24251D
-55°C to 125°C
TLE2425MD
TLE2425MD
-
TLE2425MD
t The D and LP packages are available taped and reeled In the commercial temperature range only. Add
R suffix to the device type (e.g., TLE2425CDR). The chip form is tested at 25°C.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
Copyright © 1998, Texas Instruments Incorporated
TLE2425,TLE2425Y
PRECISION VIRTUAL GROUND
SLOS065C - MARCH 1991 - REVISED MAY 1996
LPPACKAGE
(TOP VIEW)
D, OR JG PACKAGE
(TOP VIEW)
OUT08
COMMON
IN
NC
2
7
3
4
6
5
IN
NC
NC
NC
NC
COMMON
OUT
NC - No internal connection
TLE2425Y chip information
This chip, properly assembled, displays characteristics similar to the TLE2425C. Thermal compression or
ultrasonic bonding may be used on the doped aluminum bonding pads. The chip may be mounted with
conductive epoxy or a gold-silicon preform.
BONDING PAD ASSIGNMENTS
CHIP THICKNESS:
15 MILS TYPICAL
BONDING PADS:
4 x 4 MILS MINIMUM
(3)
IN
OUT
COMMON
"(1)
TJmax
=150°C
TOLERANCES ARE ±10%.
ALL DIMENSIONS
ARE IN MILS.
I~
87
.1
1111111'11111111111111111111111111111111111111111111111111111111111111111111111111111111
NOTE A. NOTE: Both number 1 bonding pads and both
number 2 bonding pads must be bonded out to
the corresponding pins.
~TEXAS
4-4
INSTRUMENTS
POST OFFICE BOX 855300 • DALLAS. TEXAS 75285
TLE2425,TLE2425Y
PRECISION VIRTUAL GROUND
SLOS065C - MARCH 1991 - REVISED MAY 1998
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)t
Continuous input voltage, VI ................................................................ 40 V
Output current, 10 .............................................................•........ ±80 mA
Duration of short-circuit current at (or below) 25°C (see Note 1) ............................. unlimited
Continuous total power dissipation ..................................... See Dissipation Rating Table
Operating free-air temperature range, TA: C-suffix...................................... O°C to 70°C
I-suffix ................................... -40°C to 85°C
M-suffix ................................. -55°C to 125°C
Storage temperature range, Tstg .................................................. -65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D package ..................... 260°C
Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds: JG or LP package .............. 300°C
t Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those Indicated under "recommended operating conditions' is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The output may be shorted to either supply. Temperature and/or supply voltages must be limited to ensure that the maximum dissipation
rating is not exceeded.
PACKAGE
0
JG
LP
TA:S25°C
POWER RATING
725mV
1050mV
775mV
DISSIPATION RATING TABLE
DERATING FACTOR
TA=70°C
POWER RATING
ABOVE TA = 25°C
5.8mWI"C
8.4mW/oC
6.2mW/oC
TA = 85°C
POWER RATING
TA=125°C
POWER RATING
3nmW
548mW
403mW
145mW
210mW
155mW
464mW
672mW
496mW
recommended operating conditions
C-SUFFIX
!-SUFFIX
M-SUFFIX
MIN
MAX
MIN
MAX
MIN
Input voltage, VI
4
40
4
40
4
40
V
Operating free-air temperature, TA
0
70
-40
85
-55
125
°C
~1ExAs
INSTRUMENTS
POST OFFICE sox 655303 • DALLAS. TEXAS 75265
MAX
UNIT
TLE2425,TLE2425Y
PRECISION VIRTUAL GROUND
SLOS065C - MARCH 1991 - REVISED MAY 1998
electrical characteristics at specified free-air temperature, VI = 5 V, 10 = 0 (unless otherwise noted)
PARAMETER
TEST CONDITIONS
Output voltage
Temperature coefficient of output voltage
Bias current
10=0
AVI(PP)= 1 V
10=Oto 10mA
Output voltage regulation (sink current)*
10=Ot020mA
Noncumulative
Output impedance
Short-Circuit output current (sink current)
VO=5V
Short-circuit output current (source current)
VO=O
Output noise voltage, rms
f=10Hzt010kHz
Output voltage response to input voltage step
Output voltage turn-on response
20
170
1.5
Vo to 0.010/0,
10=±10mA
CL=O
VI = 4.5 to 5.5 V,
VOtoO.1%
VI = 4.5 to 5.5 V,
VOtoO.01%
VI =Ot05V,
VOtoO.1%
VI =Ot05V,
Vo to 0.01%
CL=100pF
Full range
-250
25°C
-!I1TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • OAlLAS, TEXAS 75265
160
-450
-150
450
15
25°C
-160
-250
25°C
-235
250
25°C
15
25°C
7.5
30
-30
55
-50
100
I1VN
I1V
160
250
65
I1V
dB
-45
Full range
I1V
235
ppm
22.5
mO
rnA
I1V
110
25°C
115
180
I1S
180
CL= 100 pF
t Full range IS O°C to 70°C.
* The listed values are not production tested.
80
-160
JlA
20
25
25°C
V
20
25
1.5
UNIT
ppm/"C
250
250
25°C
25°C
CL=O
2.52
2.53
25°C
25°C
Vo to 0.1%,
10=±10mA
Output voltage response to output current step
2.5
25°C
25°C
10=Oto-10mA
At= 1000 h,
2.47
Full range
10 =Oto-20 mA
Long-term drift of output voltage
2.48
25°C
VI =4 Vt040V
Output voltage regulation (source current)*
25°C
Full range
Full range
Input voltage regulation
f= 120 Hz,
TLE2425C
MIN
TYP MAX
Full range
VI = 4.5 Vto 5.5 V
Ripple rejection
TAt
25°C
25°C
12
30
I1S
125
210
I1S
TLE2425,TLE2425Y
PRECISION VIRTUAL GROUND
SLOS065C- MARCH 1991- REVISED MAY 1998
electrical characteristics at specified free-air temperature, VI = 5 V, 10 = 0 (unless otherwise noted)
PARAMETER
TEST CONDITIONS
Output voltage
Temperature coefficient 01 output voltage
Bias current
10=0
aVI(pp) = 1 V
10 =Oto-20 mA
10=Ot08mA
IO=Ot020mA
Noncumulative
Output impedance
Short-circuit output current (sink current)
VO=5V
Short-circuit output current (source current)
VO=O
Output noise voltage, rms
1=10Hztol0kHz
Output voltage response to output current step
Output voltage response to input voltage step
Output voltage turn-on response
2.5
20
25°C
170
1.5
CL=O
Vo to 0.01%,
IO=±10mA
CL=O
CL= l00pF
VI = 4.5 to 5.5 V,
VOtoO.l%
VI = 4.5 to 5.5 V,
Vo to 0.01%
VI =Ot05V,
VOtoO.l%
VI =Ot05V,
Va to 0.01%
CL= l00pF
20
75
-160
Full range
-250
25°C
-450
-150
15
25°C
-160
Full range
-250
25°C
-235
-45
15
25°C
7.5
30
55
-30
-50
100
ILV
ILVN
!LV
450
160
250
25°C
JJ.A
160
250
65
V
dB
80
25°C
25°C
Vo to 0.1%,
10=±10mA
20
75
1.5
UNIT
pprnl"C
250
250
25°C
25°C
2.52
2.53
25°C
25°C
10=Oto-l0mA
at=1000h,
2.47
Full range
Output voltage regulation (source current)=!:
Long-term drift 01 output voltage
2.48
25°C
VI =4Vt040V
Output voltage regulation (sink current)=!:
25°C
Full range
TLE24251
TYP MAX
Full range
Input voltage regulation
1= 120 Hz,
MIN
Full range
VI = 4.5 V to 5.5 V
Ripple rejection
TAt
ILV
235
ppm
22.5
mQ
mA
ILV
110
25°C
115
180
J.LS
180
25°C
25°C
12
30
J.LS
125
210
J.LS
t Full range is -40°C to 85°C.
=!: The listed values are not production tested.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
4-7
TLE2425,TLE2425Y
PRECISION VIRTUAL GROUND
SLOS065C- MARCH 1991 - REVISED MAY 1998
electrical characteristics at specified free-air temperature, VI = 5 V, 10 = 0 (unless otherwise noted)
PARAMETER
TEST CONDITIONS
Output voltage
Temperature coefficient of output voltage
Bias current
10=0
.
I
161----+_
2.51
II
I
~
121----+_
2.5
'5
S-
6I
81----+-"
2.49
~
41----
2.49
2.5
2.51
2.47
-75
2.52
-SO -25
0
25
SO 75
TA - Free-Air Temperature _·C
Vo - Output Voltage - V
Figure 1
2
I.
.J
E
I
f
t
0
-2
-4
~
i'5
-6
0
-8
I~
,
J
10=0
TA=25·C
~~
adPOiht"
CC
I
~
1:
,~
\
-10
0
25
SO
200
:i
,'f
-25
125
35
40
250
II
-n -SO
100
INPUT BIAS CURRENT
va
INPUT VOLTAGE
V,=5V
Normalized to First 25·C Vo
>
I
1"\
Figure 2
OUTPUT VOLTAGE HYSTERESIS
va
FREE-AIR TEMPERATURE
4
............
2.48
0'---2.48
-
V
,/'
n
100
,
a
,;
lSO
. /~
f--
-- -~
III
'5
a.
.5
100
I
~
125
SO
o
o
5
TA - Free-Air Temperature - ·C
10
15
20
25
30
V'-'nput Voltage - V
Figure 4
Figure 3
t Data at high and low temperatures are applicable within rated operating free-air temperature ranges of the various devices.
~1ExAs
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
4-11
TLE2425,TLE2425Y
PRECISION VIRTUAL GROUND
SLOS065C- MARCH 1991- REVISED MAY 1998
TYPICAL CHARACTERISTICSt
INPUT BIAS CURRENT
vs
FREE-AIR TEMPERATURE
172
VI=5V
10=0
170
I
j
1:
~~
0
166
/
II
164
162
II)
iii
158
I
156
Q
c
11
0
40
~
20
:i
V
~
0
I
/'"
,. . /
I
~
V'
V
CD
Q
S
I
154
60
I
CD
I
.5
~
>::t
J
160
:i
a.
10=0
TA = 25°C
" "'"
/
168
c(
::t
INPUT VOLTAGE REGULATION
80
0
::t
\
70
I
,
C
II
0
60
,
20
!l
0
~
0
~
I
0
30
>
::I.
1000
I
j
40
.!z
600
,
~
~
400
II
l' P~I~' (~~ pJs~
VI=5V
TA=25°C
10
20
~
10
o
100
1k
10 k
100 k
/
30
III
~
200
o
GI
;/
'"''
60
50
I
11I11111
J
800
I
>~
WIDE-BAND NOISE VOLTAGE
vs
I
125
~
/"
V
~~
pOli~on
~~
10
II
100
1k
,Iii
1111
10k
100 k
f - Frequency - Hz
f - Frequency - Hz
Figure 11
Figure 12
~1ExAs
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75255
4-13
TLE2425,TLE2425Y
PRECISION VIRTUAL GROUND
SLOS065C - MARCH 1991 - REVISED MAY 1998
TYPICAL CHARACTERISTICS
OUTPUT VOLTAGE RESPONSE
TO INPUT VOLTAGE STEP
vs
TIME
OUTPUT VOLTAGE RESPONSE
TO OUTPUT CURRENT STEP
vs
nME
l tn IT
IT
1.5V
,
>
E
I
4
0.1%
III
\
aJ
c
!()
\
I
~.01%
0
-1
-2 -
~omAI
0
>
VI=5V
CL= 100pF
TA=25°C
I
3
500
I ill 1
IT
I
"
-
0.1%
VI=4.5V
f
50
Figure 13
100
t- Time -!1S
150
200
Figure 14
STABILITY RANGE
OUTPUT VOLTAGE POWER-UP RESPONSE
vs
TIME
3
2
>
I
t
~
1
I
20
10=0
CL=100pF
TA = 25°C
0.1%
15
V
~F--
E
I
:1
l
0
5
C
a
IV
-
I
Unstable
r- V
'"
0
-5
Stable
0
-
I_~~
10
t-Time -!,s
I
-
l;;j
20
,9
130
-10
-15
-20
10-610-5 10-4 10-310-2 10-1 100
CL- Load Capacitance - "F
Figure 15
Figure 16
~TEXAS
4-14
I
10
!i
a.
!i
0
I
vl=5V
TA=25°C -
c(
I
J'
OUTPUT CURRENT
vs
LOAD CAPACITANCE
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
10 1 10 2
TLE2425,TLE2425Y
PRECISION VIRTUAL GROUND
SLOS065C- MARCH 1991 - REVISED MAY 1998
macromodel information
*
*
*
*
*
*
*
TLE2425 OPERATIONAL AMPLIFIER uMACROMODELu SUBCIRCUIT
CREATED USING PARTS RELEASE 4.03 ON 08/21/90 AT 13:51
REV (N/A)
SUPPLY VOLTAGE: 5 V
CONNECTIONS: INPUT
I
COMMON
I
I OUTPUT
I
I
I
• SUBCKT TLE2425 3 4
5
*
*
OP1\MP SECTION
C1
11 12 21.66E-12
C2
6 7
30.00E-12
87 0 10.648-9
C3
CPSR
85 86 15.9E-9
DCM+
81 82 DX
DCM83 81 DX
5 53 DX
DC
DE
54 5 DX
DLN
92 90 DX
DLP
90 91 DX
DP
4 3 DX
ECMR
84 99 (2,99) 1
(3,0) (4,0)
EGND
99 0 POLY(2)
.5 .5
(3,4) -16.22E-6 3.24E-6
EPSR
85 0 POLY(l)
ENSE
(88,0) 120E-6 1
89 2 POLY(l)
FB
7 99 POLY(6)
VB VC VB VLPVLNVPSR
0
-10E6 7486
GA
6
11 12 320.4E-6
GCM
0 6 10 99 1.013E-9
GPSR
85 86 (85,86)
100E-6
GRC1
4
11 (4,11) 3.204E-4
GRC2
4
12 (4,12) 3.204E-4
GRE1
13 10 (13,10)
1.038E-3
GRE2
14 10 (14,10)
1.038E-3
HLIM
90 0 VLIM
1K
HCD
80 1 POLY(2)
VCM+
VCM0 1E21E2
IRP
3 4 146E-6
lEE
3 10 DC 24.05E-6
2 0
IIO
.2E-9
I1
88 0 1E-21
11
89
13
01
OX
12 80 14 OX
02
R2
6 9 100.0E3
RCM
84 81 1K
REE
10 99 8.316E6
RN1
87 0 2.55E8
RN2
87 88 11.67E3
°
+
74.8E6 -10E6
10E6
10E6
°
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
4-15
TLE2425,TLE2425Y
PRECISION VIRTUAL GROUND
SLOS065C-MARCH 1991-REVISED MAY 1998
macromodellnformatlon (continued)
R01
8 5
63
R02
7 99 62
VCM+
82 99 1. 0
VCM83 99 -2.3
VB
90
DCO
VC
3 53 DC 1.400
VB
54 4
DC 1.400
VLIM
7 8
DC 0
VLP
91 0
DC 30
VLN
0 92 DC 30
VPSR
0 86 DC 0
521K
RFB
RIN
30 1
1K
RCOM
34 4
.1
*REGULATOR SBCTION
RG1
30 0
20MEG
RG2
30 31 .2
RG3
31 35 400K
RG4
35 34 411K
RG5
31 36 25MEG
HREG
31 32 POLY(2)
VPSBT VNSBT 0
1B21B2
VRBG
32 33 DC OV
ERBG
33 34 POLY(l)
(36,34)
1.23 1
VADJ
36 34 1.27V
HPSBT 37 0
VRBG
1.030B3
VPSBT 38 0
DC 20V
HNSBT 39 0
VRBG
6. llE5
VNSBT 40 0
DC -20V
DSUB
4 34 DX
DPOS
37 38 DX
DNNBG 40 39 DX
.MODEL DX D(IS=800.0B-18)
.MODBL QX PNP(IS=800.0B-18 BF=480)
• ENDS
~TEXAS
4-16
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
General Information (Vol. 1)
Linear Voltage Regulators
Shunt Regulators
Precision Virtual Grounds
Mechanical Data
General Information (Vol. 2)
..
Processor PS Controllers
•
Switching PS and DC/DC Converters
..
MOSFET Drivers
•
Supervisors
Mechanical Data
General Information (Vol. 3)
Power Distribution Switches
LED Drivers
Voltage Rail Splitters
Special Functions
Mechanical Data
5-1
_.
nDo)
-c
...
Do)
Do)
5-2
MECHANICAL DATA
D (R·PDSO·G**)
PLASTIC SMALL·OUTLINE PACKAGE
14 PIN SHOWN
-=-=-=-=-'='== 1-$-1 0.010 (0,25) ® 1
14
T
0.244 (6,20)
0.228 (5,80)
0.157 (4,00)
0.150 (3,81)
l--------f----.l
C
A-----+!7
iGiJiiLldiiLldJ
t
0.069 (1,75) MAX
0.010 (O,2;)
0.004 (0,10)
~
8
14
16
A MAX
0.197
(5,00)
0.344
(8,75)
0.394
(10,00)
A MIN
0.189
(4,80)
0.337
(8,55)
0.386
(9,80)
DIM
4040047/010196
NOTES: A.
B.
C.
D.
All linear dimensions are in inches (millimeters).
This drawing is subject to change without notice.
Body dimensions do not include mold flash or protrusion, not to exceed 0.006 (0,15).
Falls within JEDEC MS-012
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
5-3
MECHANICAL DATA
MECHANICAL INFORMATION
DBV (R-PDSO-G5)
PLASTIC SMALL-OUTLINE PACKAGE
1r:- tro I~I
0,25
®I
r
3,00
2,50
16ood~
t30·
1,00
005 MINJ
'
4073253-418 10197
NOTES: A. All linear dimensions are in millimeters.
B. This drawing Is subject to change without notice.
C. Body dimensions include mold flash or protrusion.
-!!1TEXAS
INS'mUMENTS
POST OFFICE BOX 655300 • DALLAS. TEXAS 75265
MECHANICAL DATA
MECHANICAL INFORMATION
JG (R-GDIP-T8)
CERAMIC DUAL-IN-LiNE PACKAGE
0.400 (10,20)
0.355 (9,00)
f
0.280 (7,11)
0.245 (6,22)
*
4
0.065 (1,65)
0.045 (1,14)
o
51
1-;:::=--:=;:::0.:;-02--c;:::(;:::0':;---c);:::M;:::IN;-i
=+------.
J
f
0.310 (7,87)
0.290 (7,37)
0.200 +08) MAX
...
Seating Plana
0.130 (3,30) MIN
jL ....~..t
0.015 (0,38)
JL
~
0°_15°
0.014 (0,36)
0.008 (0,20)
4040107/C08/96
NOTES: A.
B.
C.
D.
E.
All linear dimensions are in inches (millimeters).
This drawing is subject to change without notice.
This package can be hermetically sealed with a ceramic lid using glass Iri!.
Index point is provided on cap lor terminal identification only on press ceramic glass Irit seal only.
Falls within MIL-STD-1835 GDIP1-T8
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
MECHANICAL DATA
MECHANICAL INFORMATION
KC (R·PSFM·T3)
0.420 (10,67)
0.380 (9,65)
0.156 (3,96) DIA
0.146 (3,71)
PLASTIC FLANGE·MOUNT PACKAGE,
=;1
0.120 (3,05)
0.100 (2,54)
0.185(4,70) -14---~
0.175 (4,46)
(see Note H)
0.052 (1,32)
0.048 (1,22)
-%---r0.270 (6,86)
0.230 (5,84)
(see Note H)
0.625 (15,88)
0.560 (14,22)
(see Note F)
0.125 (3,18)
0.250 (6,35)
(see Note C)
~x
f
0.562 (14,27)
0.500 (12,70)
1
0.035 (0,89)
0.029 (0,74)
1-$-1 0.010 (0,25) ® 1
3
11
-.j
I+-
0.070 (1,78)
0.045 (1,14)
0.100 (2,54)
J
1
~
0.122(3,10)
0.102(2,59)
0.025 (0,64)
0.012 (0,30)
1 0.200 (5,08) 1
40402071B 01195
NOTES: A.
B.
C.
D.
E.
F.
G.
All linear dimensions are in inches (millimeters).
This drawing Is subject to change without notice.
Lead dimensions are not controlled within this area.
All lead dimensions apply before solder dip.
The center lead is in electrical contact with the mounting tab.
The chamfer is optional.
Falls within JEDEC TO-220AB
H. Tab contour optional wHhin these dimensions
~TEXAS
INSTRUMENTS
POST OFACE BOX 655303 • DALLAS. TEXAS 75265
MECHANICAL DATA
MECHANICAL INFORMATION
KTE (R-PSFM-G3)
PowerFLE){TM PLASTIC FLANGE-MOUNT
0.375 (9,52)
0.365 (9,27)
1
0.360 (9,14)
0.350 (8,89)
r
O.oao (2,03)
0.070(1,78)
~
II
i1
I
0.295 (7,49)
I
NOM
I
0.420 (10,67)
I
I
I
0A1OI0A1J -L-_-+-_ L ____ ~I
I.--
0.360 (9,14)
0.350 (8,89)
0.050 (1,27)
0.04D (1,02)
0.010 (0,25) NOM
Thermal Tab
(See Note C)
0.025 (0,63)
0.031 (0,79)
1-$-1 0.010 (0,25) ® 1
"10"",
NOM
J
4D73375/E 05/98
NOTES: A.
B.
C.
D.
All linear dimensions are in inches (millimeters).
This drawing is subject to change without notice.
The center lead is in electrical contact with the thermal tab.
Dimensions do not include mold protrusions, not to exceed 0.006 (0,15).
PowerFLEX is a trademark of Texas Instruments Incorporated.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
5-7
MECHANICAL DATA
MPFMOO3E - OCTOBER 1994 - REVISED JUNE 1999
MECHANICAL INFORMATION
PowerFLE)(TM PLASTIC FLANGE-MOUNT
KTG (R-PSFM-G5)
'i1F
0.375 (9,52)
0.365 (9,27)
1
0.360 (9,14)
0.350 (8,89)
0.080 (2,03)
0.070(1,78)
0.050 (1,27)
0.040 (1,02)
0.010 (0,25) NOM
0.295 (7,49)
NOM
0.420 (10,67)
0.410 (10,41)
-Z..-_-fl---
1
I
~
I
I
I
I
I
I
0.360 (9,14)
0.350 (8,89)
0.320 (8,13)
0.310 (7,87)
Thermal Tab
(See Note C)
L ____ -.J
5
~~~~}-~,--~---J
I.--
~
0.031 (0,79)
0.025 (0,63)
1-1~L.J.....I0_.0_10-'-(0..:...,25....:.)~®:::-1_ _
4073377/F 06/99
NOTES: A.
B.
C.
D.
All linear dimensions are In inches (millimeters).
This drawing Is subject to change without notice.
The center lead Is in electrical contaqt with the thermal tab.
Dimensions do not include mold protrusions, not to exceed 0.006 (0,15).
PowerFLEX Is a trademark of Texas Instruments Incorporated.
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
MECHANICAL DATA
MPFM003E - OCTOBER 1994 - REVISED JUNE 1999
MECHANICAL INFORMATION
PowerFLE)(TM PLASTIC FLANGE-MOUNT
KTP (R-PSFM-G2)
1
0.243 (6,17)
0.233 (5,91)
0.228 (5,79)
0.218 (5,54)
F
II
0.215 (5,46)
1
~
II
--"---II-
0.247 (6,27)
0.237 (6,02)
LJ
L. .
0.050(1,27)
0.040 (1,02)
0.010 (0,25) NOM
f
I
NOM
t1
0.130 (3,30) NOM
~~---,
F
~::~ ~~:~:~
0.287 (7,29)
0.277 (7,03)
0.032 (0,81) MAX
'(0,79)
~~~[}_~_ _~
LO•180 (4,57)
0.025(0,63)
1-$-10.010(0,25)
®I
40733881K 10/98
NOTES: A.
B.
C.
D.
All linear dimensions are in inches (millimeters).
This drawing is subject to change without notice.
The center lead is in electrical contact with the thermal tab.
Dimensions do not include mold protrusions, not to exceed 0.006 (0,15).
PowerFLEX is a trademark of Texas Instruments Incorporated.
~1EXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
5-9
MECHANICAL DATA
MPFM003E - OCTOBER 1994 - REVISED JUNE 1999
MECHANICAL INFORMATION
N (R·PDIP·T**)
PLASTIC DUAL·IN·LlNE PACKAGE
16 PIN SHOWN
~
14
16
18
20
A MAX
0.n5
(19.69)
0.n5
(19.69)
0.920
(23.37)
0.975
(24.n)
A MIN
0.745
(18.92)
0.745
(18.92)
0.850
(21.59)
0.940
(23.88)
DIM
f
0.260 (6,60)
0.240 (6,10)
~ ~
1
0.035 (0.89) MAX
0.070
(1~78)
MAX
*
r4/~.~~~__-_-...-l.~I-
0.020 (0,51) MIN
,.
0.310(7,87)
0.290 (7,37)
n_____
Seating Plane
JL
~ 0.100(2,54) I
0.021 (0,53)
0.015 (0,38)
I'IT.
A I0 010 (0 25) ® I
,
1
'01o~~"~jL
14118 PIN ONLY
4040049/C 08/95
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. Falls within JEDEC MS-OOI (20 pin package is shorter then MS-001.)
="lExAs
5-10
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
MECHANICAL DATA
MPFM003E - OCTOBER 1994 - REVISED JUNE 1999
MECHANICAL INFORMATION
P (R-PDIP-T8)
PLASTIC DUAL-IN-LINE PACKAGE
r.
· 11---
-a-----5
0.400
0.355(10,60)
(9,02)
--r-f
0.260 (6,60)
0.240 (6,10)
o
*
4
R
0.070 (1,78) MAX
0.020(0,51) MIN
14------+1---
0.310 (7,87)
0.290 (7,37)
0.200 (5,08) MAX
--r---*1..
t
Seating Plane
0.125 (3,18) MIN
JL~0'1OO(2'54)1
t
0.021 (0,53) 1-$-1 0 010 (0 25) iO\ 1
0.015(0,38)·
.'
,
~.
Jl
~OO_150
0.010 (0,25) NOM
4040082/803/95
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. Falls wHhin JEDEC MS-001
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS. TEXAS 75265
5-11
MECHANICAL DATA
MPFMOO3E - OCTOBER 1994 - REVISED JUNE 1999
MECHANICAL INFORMATION
PK (R-PSSO-F3)
PLASTIC SINGLE-IN-LiNE PACKAGE
,
OTYP
4,40
1-=460
O'1:+-I~
1,80 MAX
----.
I
2,60
4,25 MAX
2,40
L
O,48MAX-J
1,50TYP
,I
I, I
-
3J
!~! ~O'53MAX
~
O,44MAX-J
~
.1
40402341803/95
NOTES: A. All linear dimensions are In millimeters.
B. This drawing is subject to change without notice.
C. The center lead Is in electrical contact with the tab.
~1ExAs
INSTRUMENTS
5-12
POST OFFICE BOX 655303 • DALlAS. TEXAS 75265
MECHANICAL DATA
MPFMOO3E - OCTOBER 1994 - REVISED JUNE 1999
MECHANICAL INFORMATION
PW (R.PDSO·G**)
PLASTIC SMALL·OUTLINE PACKAGE
14 PIN SHOWN
~
r- 1r:- ~:~:I *I...L-I
-,-o,_lo-->@=1
L
141
nl
4,50
4,30
6,60
6,20
'-r-r-.0~.,......-J ~
-~ ..~~
rbDDDDDDd~
~2O
0,05 MI~
MAX
~
@-11....'----'~
1=-10,10
8
14
16
20
24
28
A MAX
3,10
5,10
5,10
6,60
7,90
9,80
A MIN
2,90
4,90
4,90
6,40
7,70
9,60
DIM
4040064/E 08/96
NOTES: A.
B.
C.
D.
All linear dimensions are in millimeters.
This drawing is subject to change without notice.
Body dimensions do not include mold flash or protrusion not to exceed 0,15.
Falls within JEDEC MO-153
~TEXAS
INSTRUMENTS
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
5-13
MECHANICAL DATA
MHTSOOl D - JANUARY 1995 - REVISED MAY 1999
MECHANICAL INFORMATION
PowerPADTM PLASTIC SMALL·OUTLINE
PWP (R·PDSQ-G**)
20 PINS SHOWN
1r-
0,30
0,19
11
1-$-1
0,10
@I
~-'--'--"=<.J
------..,..Thermal Pad
(See Note D)
'---I
I
I
4,50
4,30
I
6,60
6,20
~o~~L~_"_~_~~~~~
L.
10
r6DDDDDDDDDa~
~2OMAX
mJ
,
0,05
~
14
16
20
24
28
A MAX
5,10
5,10
6,60
7,90
9,80
A MIN
4,90
4,90
6,40
7,70
9,60
DIM
40732251F 10/98
NOTES: A.
B.
C.
D.
All linear dimensions are In millimeters.
This drawing is subject to change without notice.
Body dimensions do not include mold flash or protrusions.
The package thermal performance may be enhanced by bonding the thermal pad to an external thermal plane.
This pad is electrically and thermally connected to the backside of the die and possibly selected leads.
E. Falls within JEDEC MO-153
PowerPAD is a trademark of Texas Instruments Incorporated.
~TEXAS
5-14
INSTRUMENTS
POST OFFICE BOX 655303 • DALlAS, TEXAS 75265
NOTES
TI Worldwide Technical Support
Internet
TI Semiconductor Home Page
www.ti.com/sc
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+81-3-3344-5317
0120-81-0036
www.ti.comJscljpic
www.tij.co.jp/pic
@ 1999 Texas
Instruments Incorporated
Printed in the USA
:Ila
TEXAS
INSTRUMENTS
A101299
"' TEXAS
INSTRUMENTS
Printed in U.S.A.
10/99
SLVD003
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