AP131

300mA Low Dropout Linear Regulator with Shutdown

Anachip Corp.

www.anachip.com.tw

Rev. 1.2 Oct 28, 2004

3/7

Electrical Characteristics

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

Dropout voltage (Note 1)

-

400

500

mV

Current Limit (Note 2)

350

450

-

mA

Line regulation

-

0.1

0.3

%/V

Load regulation (Note 3)

-

30

35

mV

Output voltage accuracy

-2

-

+2

%

Output voltage temperature

coefficient (Note 4)

-

50

150

PPM/ºC

PSRR

Ripple Rejection

F=100Hz,

-

60

-

dB

Standby current

-

-

5

µA

Quiescent current

-

50

100

µA

Enable pin current

-

-

< 0.1

µA

Output ON

1.5

-

V

Enable pin voltage

Output OFF

0

-

0.8

V

Enable delay time

-

8

-

µS

Note 1. Dropout voltage is defined as the input to output differential voltage. Dropout is measured at constant junction temperature by

Note 2. Current limit is measured at constant junction temperature by using pulsed testing with a low ON time.

Note 3. Regulation is measured at constant junction temperature by using pulsed testing with a low ON time.

Note 4. Guaranteed by design.

Typical Application Circuit

IN

OUT

GND

AP131

BP

EN

EN

C

IN

C

BP

C

OUT

ON

OFF

1uF

0.1uF

10uF