Vishay Si9183DT-18-T1, Si9183DT-25-T1, Si9183DT-285-T1, Si9183DT-28-T1, Si9183DT-30-T1 Schematic [ru]

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Si9183

Vishay Siliconix

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

FEATURES

D Low 135-mV Dropout at 150-mA Load

D Guaranteed 150-mA Output Current

D 300-mA Peak Output Current Capability	Available

DUses Low ESR Ceramic Output Capacitor

DFast Load And Line Transient Response

DLow Output Noise

D1-mA Maximum Shutdown Current

DBuilt-in Short Circuit And Thermal Protection

DFixed 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)

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

D Thin SOT-23 5-Pin Package

APPLICATIONS

DBattery Powered Portable Systems

DCellular Phones

DPDAs, Palmtops

DPagers

DPost Regulators for Multi-Output Converters

DNotebook Computers

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

Si9183-B

VIN

VOUT

VIN

VOUT

1 mF

2.2 mF

1 mF

2.2 mF

GND

0.1 mF

OFF

Thin SOT-23, 5-Lead

OFF

Thin SOT-23, 5-Lead

FIGURE 1. Version A with Low Output Noise

FIGURE 2. Version B with Adjustable Output

Document Number: 71258	www.vishay.com
S-51147—Rev. G, 20-Jun-05	1

Si9183

Vishay Siliconix

ABSOLUTE MAXIMUM RATINGS

Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.5 V

SD	Input Voltage, V	SD	. . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . −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	Operating Ambient Temperature, TA . . . . . . . . . . . . . . . . . . .	. −40_C to 85_C
Output Voltage, VOUT (Adjustable Version) . . . . . . . . . . . . . . . . . .				1.5	V to 5 V	Operating Junction Temperature, TJ . . . . . . . . . . . . . . . . . . .	−40_C to 125_C
SD	Input Voltage, V	SD	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 0	V to VIN

CIN = 1 mF, COUT = 2.2 mF (ceramic, X5R or X7R type) , CBP = 0.1 mF (ceramic)

COUTRange = 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

Limits

Unless Otherwise Specified

−40 to 85_C

VIN = VOUT(nom) + 1 V, IOUT = 1 mA

Parameter

Symbol

Tempa

Minb

Typc

Maxb

Unit

CIN = 1 mF, COUT = 2.2 mF, V

= 1.5 V

Input Voltage Range

VIN

Full

Output Voltage Range

Adjustable Version

Full

1.5

Output Voltage Accuracy

VOUT

1 mA v IOUT v 150 mA

Room

−1.5

1.5

% VO(nom)

(Fixed Versions)

Full

−2.5

2.5

Feedback Voltage (ADJ version)

VFB

Room

1.188

1.215

1.240

Full

1.176

1.252

Line Regulation

From VIN = VOUT(nom) + 1 V

Full

−0.18

0.18

(Except 5-V Version)

DVOUT 100

to VOUT(nom)

+ 2 V

Line Regulation (5-V Version)

From VIN = 5.5 V to 6 V

Full

−0.18

0.18

VIN

VOUT(nom)

%/V

Line Regulation (ADJ Version)

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

Dropout Voltaged

VIN − VOUT

Room

135

170

@VOUT w 2.5 V)

IOUT = 150 mA

Full

180

220

Dropout Voltaged

VIN − VOUT

IOUT = 150 mA

Room

235

320

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

Full

380

IOUT = 0 mA

Room

150

Ground Pin Current

IGND

IOUT = 150 mA

Room

500

Full

900

Shutdown Supply Current

IIN(off)

= 0 V

Full

0.1

FB Pin Current

IFB

VFB = 1.2 V

Room

100

Peak Output Current

IO(peak)

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

Room

250

300

Output Noise Voltage

BW = 50 Hz to 100 kHz

w/o CBP

Room

300

mV (rms)

IOUT = 150 mA

C = 0.1 mF

Room

100

www.vishay.com	Document Number: 71258
2	S-51147—Rev. G, 20-Jun-05

Si9183

Vishay Siliconix

SPECIFICATIONS (TA = 25_C)

Test Conditions

Limits

Unless Otherwise Specified

−40 to 85_C

VIN = VOUT(nom) + 1 V, IOUT = 1 mA

Parameter

Symbol

Tempa

Minb

Typc

Maxb

Unit

CIN = 1 mF, COUT = 2.2 mF, V

= 1.5 V

f = 1 kHz

Room

Ripple Rejection

DVOUT/DVIN

IOUT = 150 mA

f = 10 kHz

Room

f = 100 kHz

Room

Dynamic Line Regulation

DVO(line)

VIN : VOUT(nom) + 1 V to VOUT(nom) + 2 V

Room

tR/tF = 5 ms, IOUT = 150 mA

Dynamic Load Regulation

DVO(load)

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

Room

V = 4.3 V

w/o CBP Cap

Room

VOUT Turn-On-Time

tON

VOUTIN = 3.3 V

C = 0.1 mF

Room

1000

Thermal Shutdown

Thermal Shutdown Junction Temp

tJ(s/d)

Room

165

Thermal Hysteresis

tHYST

Room

Short Circuit Current

ISC

VOUT = 0 V

Room

400

Shutdown Input

Input Voltage

VIH

High = Regulator ON (Rising)

Full

1.2

VIN

VIL

Low = Regulator OFF (Falling)

Full

0.4

IIL

= 0 V, Regulator OFF

Room

0.01

Input Currente

IIH

VSD = 6 V, Regulator ON

Room

1.0

Shutdown Hysteresis

VHYST

Full

100

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	www.vishay.com
S-51147—Rev. G, 20-Jun-05	3

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	5	VOUT

GND		2
				BP (Version A)

	SD	3	4
	SD	3	4	FB (Version B)
				FB (Version B)

PIN DESCRIPTION

Pin Number	Name		Function

1	VIN		Input supply pin. Bypass this pin with a 1-mF ceramic or tantalum capacitor to ground.
2	GND		Ground pin. Local ground for CBP and COUT.
3			By applying less than 0.4 V to this pin, the device will be turned off. Connect this pin to VIN if unused.
3		SD
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
4 (Version A)		BP	ground.
			ground.

4 (Version B)		FB	Connect to divided output voltage to adjust the regulation point.

5	VOUT		Output voltage. Connect COUT between this pin and ground.

www.vishay.com	Document Number: 71258
4	S-51147—Rev. G, 20-Jun-05

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