DESCRIPTION

The L4903 is a monolithic low drop dual 5 V regulatordesigned mainly for supplying microprocessor systems.

Reset, data save functions and remote switch on/off controlcan be realized.

■ OUTPUT CURRENTS : I01 = 50mA I02 = 100mA

■ FIXED PRECISION OUTPUT VOLTAGE 5V ± 2

■ RESET FUNCTION CONTROLLED BY INPUT VOLTAGE AND OUTPUT 1 VOLTAGE

■ RESET FUNCTION EXTERNALLY PROGRAMMABLE TIMING

■ RESET OUTPUT LEVEL RELATED TO OUTPUT 2

■ OUTPUT 2 INTERNALLY SWITCHED WITH ACTIVE DISCHARGING

■ OUTPUT 2 DISABLE LOGICAL INPUT

■ LOW LEAKAGE CURRENT, LESS THAN 1µA AT OUTPUT 1

■ INPUT OVERVOLTAGE PROTECTION UP TO 60V

■ RESET OUTPUT NORMALLY LOW

■ OUTPUT TRANSISTORS SOA PROTECTION

■ SHORT CIRCUIT AND THERMAL OVERLOAD PROTECTION