SA57031-42 datasheet(4/13 Pages) PHILIPS

Part #	SA57031-42

Description	Micropower 150 mA, low-noise, low dropout linear regulator with on/off

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Manufacturer	PHILIPS [NXP Semiconductors]

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Philips Semiconductors

Product data

SA57031-XX

Micropower 150 mA, low-noise, low dropout linear

regulator with on/off

2003 Jun 23

4

CHARACTERISTICS

Tamb = 25

°C; VI = VO(nom) +1 V; VON/OFF = 2 V; IO = 1 mA unless otherwise specified.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

ICC

No-load input current

IO = 0 mA

–

45

100

µA

IO = 50 mA

–

55

–

IO = 150 mA

–

60

–

ICC(OFF)

Input current (off)

VON/OFF = 0.25 V

–

0.1

1

µA

Iq

Quiescent Current

IO = 0 to 150 mA

–

100

190

µA

∆VLNR

Line regulation

VI = VO +0.5 V to 6 V

–

5

10

mV

IO = 1 to 50 mA

–

10

25

∆VLDR

Load regulation

IO = 1 to 100 mA

–

20

50

mV

IO = 1 to 150 mA

–

30

70

∆VO/∆T

VO Temperature coefficient

Tj = –30 to +85

°C

–

ppm/

°C

PSRR

Power supply ripple rejection

f = 1 kHz; IO = 1 mA; Vripple = 0.5 V;

VO = 1.8 to 4.0 V

–

80

–

dB

PSRR

Power supply ripple rejection

f = 1 kHz; IO = 1 mA; Vripple = 0.5 V;

VO = 4.1 to 5.0 V

–

70

–

dB

Vn

Output noise voltage

fBW = 20 to 80 kHz; CO = 2.2 µF

–

30

–

µVrms

ION/OFF

Output short-circuit current

VI = VO +1 V ; VO = 0 V

–

30

–

mA

VON/OFF(H)

ON/OFF HIGH threshold

voltage

1.5

–

VI

V

VON/OFF(L)

ON/OFF LOW threshold voltage

0

–

0.25

V

RON/OFF

ON/OFF Pull-down resistance

2.5

5

15

M

Ω

VO

Output voltage (nominal)

x0.98

nom

x1.02

V

Vdropout

Dropout voltage

VO = 2.0 to 2.3

–

0.25

0.35

V

VO = 2.4 to 2.7

–

0.24

0.29

VO = 2.8 to 5.0

–

0.23

0.26

PRESET OUTPUT VOLTAGES

Part Number

Min

Typ

Max

SA57031-25UK

2.450

2.500

2.550

SA57031-28UK

2.744

2.800

2.856

SA57031-30UK

2.940

3.000

3.060

SA57031-33UK

3.234

3.300

3.366

SA57031-36UK

3.528

3.600

3.672

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