DESCRIPTION

The L4937NPD is a monolithic integrated dual voltage regulators with two very low dropout outputs and additional functions such as power-on reset and input voltage sense. They are designed for supplying microcomputer controlled systems specially in automotive applications.

. STANDBY OUTPUT VOLTAGE PRECISION 5V ± 2

. OUTPUT 2 TRACKED TO THE STANDBY OUTPUT

. OUTPUT 2 DISABLE FUNCTION FOR STANDBY MODE

. VERY LOW QUIESCENT CURRENT, LESS THAN 260µA, 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