L4937N Datasheet (STMicroelectronics) - DUAL MULTIFUNCTION VOLTAGE REGULATOR

L4937N, DUAL MULTIFUNCTION VOLTAGE REGULATOR

The L4937N is a monolithic integrated dual voltage regulatorswith two very low dropout outputsand additional functions such as power-on reset and input voltage sense.

It is designed for supplying microcomputer controlled systems specially in automotive applications.

PIN CONNECTION (top view) June

® L4937N DUAL MULTIFUNCTION VOLTAGE REGULATOR .

STANDBYOUTPUT VOLTAGEPRECISION 5V ± 2% OUTPUT 2 TRACKED TO THE 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 THERMALSHU

L4937N Features

* and auxiliary functions are provided to meet the requirements of supplying the microprocessor systems used in automotive applications. Furthermore the device is suitable also in other applications requiring two stabilized voltages. The modular approach allows other features and functions to be reali