L4938E Datasheet (STMicroelectronics) - ADVANCED VOLTAGE REGULATOR

L4938E, ADVANCED VOLTAGE REGULATOR

The L4938E/ED/EPD is a monolithic integrated dual voltage regulator with two very low dropout outputs and additional functions as power-on reset and input voltage sense.

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

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® L4938E/ED L4938EPD ADVANCED VOLTAGE REGULATOR ENABLE AND SENSE INPUTS (EN, SI) PROTECTED AGAINST NEGATIVE TRANSIENTS DOWN TO -5V RESET THRESHOLD ADJUSTABLE FROM 3.8 TO 4.7V EXTREMELY LOW QUIESCENT CURRENT, 65µA (LESS THAN 90µA) IN STANDBY MODE OPERATING DC SUPPLY VOLTAGE RANGE 5V - 28V OPERATING TRANSIENT SUPPLY VOLTAGE UP TO 40V HIGH PRECISION STANDBY OUTPUT VOLTAGE 5V ± 1% WITH 100mA CURRENT CAPABILITY OUTPUT 2 VOLTAGE 5V ± 2% WITH 400mA CURRENT CAPABILITY (ADJ WIRED TO VOUT2) OUTPUT 2 VOL

L4938E Features

* and auxiliary functions are implemented to meet the requirements of supplying microprocessor systems in automotive applications. Nevertheless, it is suitable also in other applications where two stabilized voltages are required. The modular approach of this device allows to get easly also other feat