Si9183 Datasheet. Www.s Manuals.com. Vishay

User Manual: Marking of electronic components, SMD Codes A9, A9*, A9**, A9***, A9-**, A9-***, A933AS, A9A, A9A#. Datasheets 2SA933AS, 74AHC1G09GW, AD8591ART, AD8591ARTZ, AO3409, AO3409L, ELM9709NBA, FAN54015UCX, FMA9N, RT8008-12PJ5, RT9011-CCPQV, RT9011-KMPJ6, RT9014-FMPQV, RT9198-33PU5, RT9818E-22PY, Si2309DS, Si9183DT-AD-T1, TPS3831K50DQNR, UMA9N.

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Si9183
Vishay Siliconix

High-Performance, Size Saving 150-mA CMOS LDO Regulator
FEATURES
D
D
D
D
D
D
D
D
D

Low 135-mV Dropout at 150-mA Load
Guaranteed 150-mA Output Current
300-mA Peak Output Current Capability
Uses Low ESR Ceramic Output Capacitor
Fast Load And Line Transient Response
Low Output Noise
1-mA Maximum Shutdown Current
Built-in Short Circuit And Thermal Protection
Fixed 1.8-V, 2.5-V, 2.8-V, 2.85-V, 3.0-V, 3.3-V, 5.0-V
or Adjustable Output Voltage Options (Version B)

D Thin SOT-23 5-Pin Package
Available

APPLICATIONS
Battery Powered Portable Systems
Cellular Phones
PDAs, Palmtops
Pagers
Post Regulators for Multi-Output Converters
Notebook Computers

D
D
D
D
D
D

DESCRIPTION
The Si9183 is a high performance yet size saving 150-mA
CMOS LDO (low dropout) voltage regulator. Its ultra low
ground current and dropout voltage prolong battery life in
portable electronics. The device provides LINE/LOAD
transient response and ripple rejection superior to that of
Bipolar or BiCMOS LDO regulators. It is designed to maintain
regulation while delivering 300-mA peak current. The Si9183
drives lower cost ceramic, as well as tantalum, output
capacitors. Stability is guaranteed from maximum load current
down to 0-mA load. An external noise bypass capacitor
connected to the device’s CBP pin will reduce the LDO’s

self-noise for low noise applications. The Si9183 includes a
shutdown feature that allows users to completely disable the
device and save power when no output is required.
The Si9183, in Thin SOT23-5 packaging, is available in two
versions (Version A or B). Version A offers low noise
performance, while Version B features adjustable output
voltage.
The Si9183 is available in both standard and lead (Pb)-free
packages.

TYPICAL APPLICATIONS CIRCUITS

Si9183-A
VIN

1

VIN

VOUT

Si9183-B
5

1 mF

VOUT
2.2 mF

SD

2

GND

3

SD

BP

4

ON

Thin SOT-23, 5-Lead

FIGURE 1. Version A with Low Output Noise

Document Number: 71258
S-51147—Rev. G, 20-Jun-05

1

VIN

VOUT

5

1 mF

SD
0.1 mF

OFF

VIN

VOUT
2.2 mF

2

GND

3

SD

FB

4

ON
OFF

Thin SOT-23, 5-Lead

FIGURE 2. Version B with Adjustable Output

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1

Si9183
Vishay Siliconix
ABSOLUTE MAXIMUM RATINGS
Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.5 V
SD Input Voltage, VSD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to VIN
Output Current, IOUT . . . . . . . . . . . . . . . . . . . . . . . . . . Short Circuit Protected
Output Voltage, VOUT . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to VO(nom) + 0.3 V
Maximum Junction Temperature, TJ(max) . . . . . . . . . . . . . . . . . . . . . . . 150_C
Storage Temperature, TSTG . . . . . . . . . . . . . . . . . . . . . . . . . . −65_C to 125_C
ESD (Human Body Model) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 kV

Power Dissipation (Package)a, b
5-Pin SOT-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 555 mW
Thermal Impedance (QJA)
5-Pin SOT-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180 _C/W
Notes
a. Device mounted with all leads soldered or welded to multi-layer (1S2P)
JEDEC board, horizontal orientation.
b. Derate 5.5 mW/_C above TA = 25_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 in the operational sections of the specifications is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.

RECOMMENDED OPERATING RANGE
Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 V to 6 V
Output Voltage, VOUT (Adjustable Version) . . . . . . . . . . . . . . . . . . 1.5 V to 5 V
SD Input Voltage, VSD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V to VIN

Operating Ambient Temperature, TA . . . . . . . . . . . . . . . . . . . . −40_C to 85_C
Operating Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . −40_C to 125_C

CIN = 1 mF, COUT = 2.2 mF (ceramic, X5R or X7R type) , CBP = 0.1 mF (ceramic)
COUT Range = 1 mF to 10 mF ("20% tolerance, "20% over temperature; ESR = 0.4 to 4 W at dc to 100 kHz, 0 t0 0.4 W > 100 kHz) )

SPECIFICATIONS (TA = 25_C)
Test Conditions
Unless Otherwise Specified
Parameter

Symbol

Input Voltage Range

VOUT

Feedback Voltage (ADJ version)

Dropout Voltaged
(@VOUT t 2.5 V, VIN w 2 V)

Full

2

6

Full

1.5

5

Room

−1.5

1.5

Full

−2.5

2.5

Room

1.188

Full

1.176

1.252

From VIN = VOUT(nom) + 1 V
to VOUT(nom) + 2 V

Full

−0.18

0.18

From VIN = 5.5 V to 6 V

Full

−0.18

0.18

VOUT = 1.5 V, From VIN = 2.5 V to 3.5 V

Full

−0.18

0.18

VOUT = 5 V, From VIN = 5.5 V to 6 V

Full

−0.18

0.18

IOUT = 10 mA

Room

1

20

Room

135

170

Full

180

220

Room

235

320

1 mA v IOUT v 150 mA

VFB

DVOUT

VIN

100

VOUT(nom)

Line Regulation (ADJ Version)

Dropout Voltaged
@VOUT w 2.5 V)

Minb

Adjustable Version

Output Voltage Accuracy
(Fixed Versions)

Line Regulation (5-V Version)

Tempa

VIN

Output Voltage Range

Line Regulation
(Except 5-V Version)

VIN = VOUT(nom) + 1 V
V, IOUT = 1 mA
A
CIN = 1 mF, COUT = 2.2 mF, VSD = 1.5 V

VIN − VOUT

VIN − VOUT

IOUT = 150 mA
IOUT = 150 mA

Shutdown Supply Current

IGND

Typc

1.215

Full

IOUT = 0 mA
Ground Pin Current

Limits
−40 to 85_C

IOUT = 150 mA

Maxb

1.240

Room

150

Room

500

Full

VSD = 0 V

Full

0.1

1

Room

2

100

Peak Output Current

IO(peak)

VOUT w 0.95 x VOUT(nom), tpw = 2 ms

Room

Output Noise Voltage

eN

2

V

%/V

mV

mA
m

VFB = 1.2 V

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% VO(nom)
O(
)

900

IFB

BW = 50 Hz to 100 kHz
IOUT = 150 mA

V

380

IIN(off)

FB Pin Current

Unit

250

300

w/o CBP

Room

300

CBP = 0.1 mF

Room

100

mA
nA
mA
mV (rms)

Document Number: 71258
S-51147—Rev. G, 20-Jun-05

Si9183
Vishay Siliconix
SPECIFICATIONS (TA = 25_C)
Test Conditions
Unless Otherwise Specified
Parameter

Ripple
pp Rejection
j

Symbol

DVOUT/DVIN

VIN = VOUT(nom) + 1 V, IOUT = 1 mA
CIN = 1 mF, COUT = 2.2 mF, VSD = 1.5 V

IOUT = 150 mA

Limits
−40 to 85_C

Tempa

Minb

Typc

f = 1 kHz

Room

60

f = 10 kHz

Room

40

f = 100 kHz

Room

30

Dynamic Line Regulation

DVO(line)

VIN : VOUT(nom) + 1 V to VOUT(nom) + 2 V
tR/tF = 5 ms, IOUT = 150 mA

Room

10

Dynamic Load Regulation

DVO(load)

IOUT : 1 mA to 150 mA, tR/tF = 2 ms

Room

30

VOUT Turn-On-Time
Turn On Time

tON

VIN = 4.3 V
VOUT = 3.3 V

w/o CBP Cap

Room

5

CBP = 0.1 mF

Room

1000

Maxb

Unit

dB

mV

ms

Thermal Shutdown
Thermal Shutdown Junction Temp

tJ(s/d)

Room

165

Thermal Hysteresis

tHYST

Room

20

Short Circuit Current

ISC

VOUT = 0 V

Room

400

VIH

High = Regulator ON (Rising)

Full

VIL

Low = Regulator OFF (Falling)

Full

IIL

VSD = 0 V, Regulator OFF

Room

0.01

IIH

VSD = 6 V, Regulator ON

Room

1.0

Full

100

_C
mA

Shutdown Input
SD Input Voltage

SD Input Currente
Shutdown Hysteresis

VHYST

1.2

VIN
0.4

V

mA
mV

Notes
a. Room = 25_C, Full = −40 to 85_C.
b. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum.
c. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. Typical values for dropout voltage at VOUT w 2 V are measured at
VOUT = 2.5 V, while typical values for dropout voltage at VOUT < 2 V are measured at VOUT = 1.8 V.
d. Dropout voltage is defined as the input to output differential voltage at which the output voltage drops 2% below the output voltage measured with a 1-V
differential, provided that VIN does not not drop below 2.0 V.
e. The device’s shutdown pin includes a typical 6-MW internal pull-down resistor connected to ground.
f.
VOUT is defined as the output voltage of the DUT at 1 mA.

Document Number: 71258
S-51147—Rev. G, 20-Jun-05

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Si9183
Vishay Siliconix
TIMING WAVEFORMS

VIN

tON
VNOM
0.95 VNOM
VOUT

FIGURE 3. Timing Diagram for Power-Up

PIN CONFIGURATION

Thin SOT-23, 5-Pin
VIN

1

GND

2

SD

3

5

VOUT

4

BP (Version A)
FB (Version B)

PIN DESCRIPTION
Pin Number

Function

1

VIN

2

GND

3

SD

By applying less than 0.4 V to this pin, the device will be turned off. Connect this pin to VIN if unused.

4 (Version A)

BP

Noise bypass pin. For low noise applications, a 0.1-mF or larger ceramic capacitor should be connected from this pin to
ground.

4 (Version B)

FB

Connect to divided output voltage to adjust the regulation point.

5

VOUT

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4

Name

Input supply pin. Bypass this pin with a 1-mF ceramic or tantalum capacitor to ground.
Ground pin. Local ground for CBP and COUT.

Output voltage. Connect COUT between this pin and ground.

Document Number: 71258
S-51147—Rev. G, 20-Jun-05

Si9183
Vishay Siliconix
ORDERING INFORMATION
Part Number

Lead (Pb)-Free
Part Number

Marking

Voltage

Si9183DT-18-T1

Si9183DT-18-T1—E3

A2LL

1.8 V

Si9183DT-25-T1

Si9183DT-25-T1—E3

A4LL

2.5 V

Si9183DT-28-T1

Si9183DT-28-T1—E3

A5LL

2.8 V

Si9183DT-285-T1

Si9183DT-285-T1—E3

B3LL

2.85 V

Si9183DT-30-T1

Si9183DT-30-T1—E3

A6LL

3.0 V

Si9183DT-33-T1

Si9183DT-33-T1—E3

A7LL

3.3 V

Si9183DT-50-T1

Si9183DT-50-T1—E3

A8LL

5.0 V

Si9183DT-AD-T1

Si9183DT-AD-T1—E3

A9LL

Adjustable

Temperature Range

Package

−40
40 to 85_C

Thin
SOT23-5

NOTE: LL = Lot Code

Eval Kit

Temperature Range

Board Type

Si9183DB

−40 to 85_C

Surface Mount

TYPICAL CHARACTERISTICS (INTERNALLY REGULATED, 25_C UNLESS NOTED)
Dropout Voltage vs. Load Current

300

VIN − VOUT Transfer Characteristic

2.5

VOUT = 2.5 V

RLOAD = 250 W
2.0
RLOAD = 16.6 W

200
V OUT (V)

V DROP (mV)

250

150

1.5

1.0

100
0.5

50
0

0.0
0

60

120

180

240

300

0

1

2

3

ILOAD (mA)

6

IOUT = 300 mA
400

IOUT = 150 mA

IOUT = 75 mA

IOUT = 10 mA
IOUT = 0 mA
25

50

75

100

Junction Temperature (_C)

Document Number: 71258
S-51147—Rev. G, 20-Jun-05

5

Dropout Voltage vs. VOUT

500

125

150

Dropout Voltage (mV)

V DROP (mV)

Dropout Voltage vs. Temperature

375
350
VOUT = 2.5 V
325
300
275
250
225
200
175
150
125
100
75
50
25
0
−50 −25
0

4

VIN (V)

300
IOUT = 300 mA
200
IOUT = 150 mA

IOUT = 75 mA
100
IOUT = 10 mA
0
1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

VOUT

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Si9183
Vishay Siliconix
TYPICAL CHARACTERISTICS (INTERNALLY REGULATED, 25_C UNLESS NOTED)
Normalized Output Voltage vs. Load Current

0.30

VIN = VOUT(nom) + 1 V

0.15

IOUT = 0 mA

−0.2

0.00

−0.4
V OUT (%)

Output Voltage (%)

Normalized VOUT vs. Temperature

−0.0

−0.15
−0.30

IOUT = 150 mA

−0.8

−0.45

−1.0

−0.60

VIN = VOUT(nom) + 1 V

−0.75
0

25

50

75

100

125

−1.2
−40

150

−15

10

Load Current (mA)

VOUT = 2.5 V
VIN = 3.5 V

400

35

60

85

Ambient Temperature (_C)

GND Current vs. Load Current

500

No Load GND Pin Current vs. Input Voltage

300
250

85_C

200

−40_C
300

I GND ( mA)

I GND ( mA)

IOUT = 75 mA

−0.6

200

85_C

150

−40_C
100

100

50

0

0
0

25

50

75

100

125

150

2

3

4

Load Current (mA)

1.5

Shutdown Pin Input Current vs. Temperature

1.4
1.3

1.5
1.4

VOUT = 2.5 V
VSD = 6.5 V

1.3

VIL, VIH (V)

I IH

1.0
0.9
0.8

VOUT = 2.5 V

1.0
0.9

VIH

0.8
0.7

0.7

0.6

0.6

0.5
−15

10

35

Ambient Temperature

6

Shutdown Threshold vs. Temperature

1.1

1.1

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6

1.2

1.2

0.5
−40

5

Input Voltage (V)

60

85

0.4
−40

VIL

−15

10

35

60

85

Ambient Temperature
Document Number: 71258
S-51147—Rev. G, 20-Jun-05

Si9183
Vishay Siliconix
TYPICAL CHARACTERISTICS (INTERNALLY REGULATED, 25_C UNLESS NOTED)
ISC vs. Temperature

0.75
VOUT = 2.5 V
0.65

−20

0.55

Gain (dB)

I SC (A)

Power Supply Rejection

0

0.45

CIN = 1 mF
COUT = 2.2 mF
ILOAD = 150 mA

−40

−60

0.35

0.25
−40

−15

10

35

60

85

−80
10

100

Ambient Temperature

1K

10 K

100 K

1M

Frequency (Hz)

TYPICAL WAVEFORMS
Turn-On Delay

Turn-Off Delay
SD 2 V/div

SD 2 V/div

VOUT 2 V/div

VOUT 2 V/div
10.00 ms/div

5.00 ms/div

VIN = 4.2 V
VOUT = 3.3 V
CBP = 0.1 mF
ILOAD = 350 mA

Output Noise

VIN = 4.2 V
VOUT = 3.3 V
CBP = 0.1 mF
ILOAD = 350 mA

Noise Spectrum
10.0

100 mV/div
mVń ǸHz

0.01
1 ms/div

Document Number: 71258
S-51147—Rev. G, 20-Jun-05

VIN = 4 V
VOUT = 3 V
IOUT = 150 mA
CIN = 1 mF
COUT = 2.2 mF
CBP = 0.1 mF
BW = 10 Hz to 1 MHz

100 Hz

VIN = 4 V
VOUT = 3
IOUT = 150 mA
CIN = 1 mF
COUT = 2.2 mF
CBP = 0.1 mF

1 MHz

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Si9183
Vishay Siliconix
TYPICAL WAVEFORMS
Load Transient Response-1

Load Transient Response-2
VOUT
10 mV/div

VOUT
10 mV/div
ILOAD
100 mA/div
ILOAD
100 mA/div

M 5.00 ms
VOUT = 3.0 V
COUT = 2.2 mF
ILOAD = 1 to 150 mA
trise = 2 msec

M 5.00 ms
VOUT = 3.0 V
COUT = 2.2 mF
ILOAD = 150 to 1 mA
tfall = 2 msec

Load Transient Response-3

Load Transient Response-4
VOUT
10 mV/div

VOUT
10 mV/div
ILOAD
100 mA/div
ILOAD
100 mA/div

M 5.00 ms
VOUT = 3.0 V
COUT = 1.0 mF
ILOAD = 1 to 150 mA
trise = 2 msec

M 5.00 ms
VOUT = 3.0 V
COUT = 1.0 mF
ILOAD = 150 to 1 mA
tfall = 2 msec

Line Transient Response-1
VIN
1 V/div

VIN
1 V/div

VOUT
10 mV/div

VOUT
10 mV/div

VOUT = 3.0 V
ILOAD = 150 mA
VIN = 4 to 5 V
COUT = 2.2 mF
trise = 5 msec

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Line Transient Response-2

M 20.0 ms

VOUT = 3.0 V
ILOAD = 150 mA
VIN = 5 to 4 V
COUT = 2.2 mF
tfall = 5 msec

M 20.0 ms

Document Number: 71258
S-51147—Rev. G, 20-Jun-05

Si9183
Vishay Siliconix
BLOCK DIAGRAMS

4

BP

Switches shown for device in normal operating mode (SD = HIGH)

1

VIN
CIN
1.0 mF

3

SD
ON

+
−

RFB2

OFF

5

6 MW

VOUT

COUT
2.2 mF
RFB1

+

GND

1.215 V
VREF

−

2

FIGURE 4. 150-mA CMOS LDO Regulator (Fixed Output)

4

FB

1

VIN
CIN
1.0 mF

R2
VFB

3

SD

R1

ON

+
−

OFF

5

6 MW

COUT
2.2 mF

+

GND

2

−

VOUT

1.215 V
VREF

FIGURE 5. 150-mA CMOS LDO Regulator (Adjustable Output)
Document Number: 71258
S-51147—Rev. G, 20-Jun-05

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Si9183
Vishay Siliconix
DETAILED DESCRIPTION
The Si9183 is a low drop out, low quiescent current, linear
regulator family with very fast transient response. It is primarily
designed for battery powered applications where battery run
time is at a premium. The low quiescent current allows
extended standby time while low drop out voltage enables the
system to fully utilize battery power before recharge. The
Si9183 is a very fast regulator with bandwidth exceeding
50 kHz while maintaining low quiescent current at light load
conditions. With this bandwidth, the Si9183 is one of the
fastest LDO available today. The Si9183 is stable with one of
any output capacitor types from 1 mF to 10.0 mF. However,
X5R or X7R ceramic capacitors are recommended for best
output noise and transient performance.
VIN
VIN is the input supply pin. The bypass capacitor for this pin
is not critical as long as the input supply has low enough source
impedance. For practical circuits, a 1.0-mF or larger ceramic
capacitor is recommended. When the source impedance is
not low enough and/or the source is several inches from the
Si9183, then a larger input bypass capacitor is needed. It is
required that the equivalent impedance (source impedance,
wire, and trace impedance in parallel with input bypass
capacitor impedance) must be smaller than the input
impedance of the Si9183 for stable operation. When the
source impedance, wire, and trace impedance are unknown,
it is recommended that an input bypass capacitor be used of
a value that is equal to or greater than the output capacitor.
VOUT
VOUT is the output voltage of the regulator. Connect a bypass
capacitor from VOUT to ground. The output capacitor can be
any value from 1.0 mF to 10.0 mF. A ceramic capacitor with
X5R or X7R dielectric type is recommended for best output
noise, line transient, and load transient performance.

GND
Ground is the common ground connection for VIN and VOUT.
It is also the local ground connection for CBP, ADJ, and SD.
ADJ
For the adjustable output version, use a resistor divider R1 and
R2, connect R1 from VOUT to ADJ and R2 from ADJ to ground.
R2 should be in the 25-kW to 150-kW range for low power
consumption, while maintaining adequate noise immunity.
The formula below calculates the value of R1, given the
desired output voltage and the R2 value,
R1 +

ǒV OUT * VADJǓR2
VADJ

VADJ is nominally 1.215 V.

(1)

SHUTDOWN (SD)
SD controls the turning on and off of the Si9183. VOUT is
guaranteed to be on when the SD pin voltage equals or is
greater than 1.2 V. VOUT is guaranteed to be off when theSD
pin voltage equals or is less than 0.4 V. During shutdown
mode, the Si9183 will draw less than 1-mA current from the
source. To automatically turn on VOUT whenever the input is
applied, tie the SD pin to VIN.
CBP
For low noise application, connect a high frequency ceramic
capacitor from CBP to ground. A 0.01-mF or a 0.1-mF X5R or
X7R is recommended.

Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon Technology and
Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and reliability data, see
http://www.vishay.com/ppg?71258.
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Document Number: 71258
S-51147—Rev. G, 20-Jun-05

www.s-manuals.com



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Creator                         : 
Subject                         : Si9183 - Datasheet. www.s-manuals.com.
Document ID                     : uuid:cd8747ae-4b29-4868-927f-72b4af496f59
Instance ID                     : uuid:30a200d2-4e54-4355-b3f8-2c3845b194fc
Page Count                      : 11
Keywords                        : Si9183, -, Datasheet., www.s-manuals.com.

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