L387 Datasheet - STMicroelectronics

DESCRIPTION
The L387A is a very low drop voltage regulator in aPentawatt  package specially designed to pro
vide stabilized 5V supplies in consumer and in dustrial applications. Thanks to its very low in
put/output voltage drop this device is very useful in battery powered equipment, reducing con
sumption and prolonging battery life. A reset out put makes the L387A particularly suitable for mi
croprocessor systems. This output provides a re set signal when power is applied (after an exter
nal programmable delay) and goes low when

PRECISE OUTPUT VOLTAGE (5 V±4%)
VERY LOW DROPOUT VOLTAGE
OUTPUT CURRENT IN EXCESS OF 500mA
POWER-ON, POWER-OFF INFORMATION (RESET FUNCTION)
HIGH NOISE IMMUNITY ON RESET DELAY CAPACITOR