L4923 Datasheet, PDF (1/6 Pages) STMicroelectronics – WITH RESET AND INHIBIT 5V.1A VERY LOW DROP REGULATOR

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L4923
5V–1A VERY LOW DROP REGULATOR
WITH RESET AND INHIBIT
. 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
Heptawatt
ORDERING NUMBER : L4923
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.
DE S CR IP TI O N
The reset function is very useful for power off and
power on information when supplying a microproc-
essor.
The L4923is a high currentmonolithic voltage regu-
lator with very low voltage drop (0.70 V max at 1 A,
TJ = 25 °C).
The inhibit function reduces drastically the con-
sumptionwhen no load current is required: typically
the standby current value is 300 µA.
BLOCK DIAGRAM
June 2000
1/6
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.