L4903
DUAL 5V REGULATOR
WITH RESET AND DISABLE FUNCTIONS
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PRELIMINARY DATA
OUTPUT CURRENTS : I
01
= 50mA
I
02
= 100mA
FIXED PRECISION OUTPUT VOLTAGE
5V
鹵
2 %
RESET FUNCTION CONTROLLED BY INPUT
VOLTAGE AND OUTPUT 1 VOLTAGE
RESET FUNCTION EXTERNALLY PRO-
GRAMMABLE TIMING
RESET OUTPUT LEVEL RELATED TO OUT-
PUT 2
OUTPUT 2 INTERNALLY SWITCHED WITH
ACTIVE DISCHARGING
OUTPUT 2 DISABLE LOGICAL INPUT
LOW LEAKAGE CURRENT, LESS THAN 1碌A(chǔ)
AT OUTPUT 1
INPUT OVERVOLTAGE PROTECTION UP TO
60V
RESET OUTPUT NORMALLY LOW
OUTPUT TRANSISTORS SOA PROTECTION
SHORT CIRCUIT AND THERMAL OVER-
LOAD PROTECTION
Minidip
ORDERING NUMBERS :
L4903
DESCRIPTION
The L4903 is a monolithic low drop dual 5 V regu-
lator designed mainly for supplying microprocessor
systems.
Reset, data save functions and remote switch
on/off control can be realized.
PIN CONNECTION
July1993
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