DESCRIPTION

The L4904A is a monolithic low drop dual 5V regulatordesignedmainly for supplying microprocessor systems.

Reset and data save functionsduring switch on/off can 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

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

■ LOW QUIESCENT CURRENT (Input 1)

■ INPUT OVERVOLTAGE PROTECTION UP TO 60V

■ RESET OUTPUT NORMALLY HIGH

■ OUTPUT TRANSISTORS SOA PROTECTION

■ SHORT CIRCUIT AND THERMAL OVERLOAD PROTECTION