L4937N

多功能双电压稳压器 DUAL MULTIFUNCTION VOLTAGE REGULATOR

DESCRIPTION

The is a monolithic integrated dual voltage regulatorswithtwoverylowdropoutoutputsandad ditional functionssuch as power-on reset and input voltage sense. It is designed for supplying microcomputer controlled systems specially in automotive applications.

. STANDBY OUTPUT VOLTAGE PRECISION 5V ± 2%

. OUTPUT2 TRACKEDTOTHE STANDBY OUTPUT

. OUTPUT 2 DISABLE FUNCTION FOR STANDBY MODE

. VERY LOW QUIESCENT CURRENT, LESS THAN 250µA, IN STANDBY MODE

. OUTPUT CURRENTS : I01 = 50mA,I02 = 500mA

. VERY LOW DROPOUT max 0.4V/0.6V

. OPERATING TRANSIENT SUPPLY VOLTAGE UP TO 40V

. POWER-ON RESET CIRCUIT SENSING THE STANDBY OUTPUT VOLTAGE

. POWER-ON RESET DELAY PULSE DEFINED BY THE EXTERNAL CAPACITOR

. THERMAL SHUTDOWN AND SHORT CIRCUIT PROTECTIONS