SI9181 Datasheet, PDF(3/10 Page) Vishay Siliconix – Micropower 350-mA CMOS LDO Regulator With Error Flag/Power-On-Reset

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SI9181 Datasheet, PDF (3/10 Pages) Vishay Siliconix – Micropower 350-mA CMOS LDO Regulator With Error Flag/Power-On-Reset

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Si9181

Vishay Siliconix

SPECIFICATIONS

Parameter

Symbol

Test Conditions

Unless Otherwise Specified

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

CIN = 2.2 mF, COUT = 2.2 mF, VSD = 1.5 V

Limits

â40 to 85_C

Tempa Minb Typc Maxb

Unit

Shutdown Supply Current

ADJ Pin Current

Peak Output Current

Output Noise Voltage

IIN(off)

IADJ

IO(peak)

Ripple Rejection

DVOUT/DVIN

Dynamic Line Regulation

Dynamic Load Regulation

VOUT Turn-On-Time

Thermal Shutdown

Thermal Shutdown Junction Temp

Thermal Hysteresis

Short Circuit Current

Shutdown Input

SD Input Voltage

SD Input Currente

Shutdown Hysteresis

Error Output

Output High Leakage

Output Low Voltageg

Power_Good Trip Thresholdf, h

(Rising)

Hysteresisf

Delay Pin Current Source

DVO(line)

DVO(load)

tON

tJ(s/d)

tHYST

ISC

VIH

VIL

IIH

IIL

VHYST

IOFF

VOL

VTH

VHYST

IDELAY

VSD = 0 V

ADJ = 1.2 V

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

BW = 50 Hz to 100 kHz

IOUT = 150 mA

w/o CNOISE

CNOISE = 0.1 mF

f = 1 kHz

IOUT = 150 mA

f = 10 kHz

f = 100 kHz

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

tR/tF = 5 ms, IOUT = 350 mA

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

VIN = 4.3 V

VOUT = 3.3 V

w/o CNOISE Cap

CNOISE = 0.1 mF

VOUT = 0 V

High = Regulator ON (Rising)

Low = Regulator OFF (Falling)

VSD = 0 V, Regulator OFF

VSD = 6 V, Regulator ON

ERROR = VOUT(nom)

ISINK = 2 mA

Room

Full

Room

Full

Room

0.1

100

600

200

mV (rms)

100

165

800

1.5

VIN

0.4

0.01

1.0

100

0.01

0.4

0.93 x 0.95 x 0.97 x

VOUT

2% x

VOUT

1.2

2.2

3.0

Notes

a. Room = 25_C, Full = â40 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 = 3.3 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 deviceâs 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.

g. The Error Output (Low) function is guaranteed from VOUT = 2.0 V to VOUT = 5.0 V.

h. The Power_Good trip threshold function is guaranteed from VOUT = 1.5 V to VOUT = 5.0 V and VIN w 2.0 V.

Document Number: 71119

S-40694âRev. D, 19-Apr-04

www.vishay.com

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