L4925

VERY LOW DROP VOLTAGE REGULATOR

OPERATING DC SUPPLY VOLTAGE RANGE

6V TO 28V

TRANSIENT SUPPLY VOLTAGE UP TO 40V

EXTREMELY LOW QUIESCENT CURRENT

HIGH PRECISION OUTPUT VOLTAGE

OUTPUT CURRENT CAPABILITY UP TO

500mA

VERY LOW DROPOUT VOLTAGE

LESS

THAN 0.6V

RESET CIRCUIT SENSING THE OUTPUT

VOLTAGE

PROGRAMMABLE RESET PULSE DELAY

WITH EXTERNAL CAPACITOR

THERMAL SHUTDOWN AND SHORT CIR-

CUIT PROTECTIONS

DESCRIPTION

The L4925 is a monolithic integrated 5V voltage

regulator with a very low dropout output and addi-

tional functions such as power-on reset and pro-

grammable reset delay time. It is designed for

supplying microcomputer controlled systems es-

pecially in automotive applications.

This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

June 2000

®

+

-

PREREGULATOR

5V

VREF

1.23V

Vz

Vz

2

µ

=

GND

2V

RESET

REG

L4925N

CT

RES

D95AT151

BLOCK DIAGRAM

ORDERING NUMBERS: L4925 (Pentawatt)

L4925PD (PowerSO20)

Pentawatt

PowerSO20

1/8