L4923

June 2000

WITH RESET AND INHIBIT

5V–1A VERY LOW DROP REGULATOR

®

.

VERY LOW DROP (max. 0.9V at 1A) OVER

FULL OPERATING TEMPERATURE RANGE

(– 40 / + 125

°C)

.

LOW QUIESCENT CURRENT (max 70 mA at

1 A) OVER FULL T RANGE

.

PRECISEOUTPUT VOLTAGE(5V

± 4%) OVER

FULL T RANGE

.

POWER ON-OFF INFORMATION WITH SET-

TABLE DELAY

.

INHIBIT FOR REMOTE ON-OFF COMMAND

(active high)

.

LOAD STANDBY CURRENT

.

LOAD DUMP AND REVERSE BATTERY PRO-

TECTION

.

SHORT CIRCUIT PROTECTION

.

THERMAL SHUTDOWN

DESCRIPTION

The L4923is a high current monolithic voltage regu-

lator with very low voltage drop (0.70 V max at 1 A,

°C).

The device is internally protected against load

dumps transient of + 60 V, input overvoltage, re-

verse polarity, overheating and output short circuit :

thanks to these featuresthe L4923is very suited for

the automotive and industrial applications.

The reset function is very useful for power off and

power on information when supplying a microproc-

essor.

The inhibit function reduces drastically the con-

sumption when no load current is required : typically

the standby current value is 300

µA.

Heptawatt

ORDERING NUMBER : L4923

BLOCK DIAGRAM

1/6

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