
STMicroelectronics
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