L4901A Datasheet - STMicroelectronics

L4901A DUAL 5V REGULATOR WITH RESET

The L4901A is a monolithic low drop dual 5V regulator designed mainly for supplying microprocessor systems. Reset and data save functions during switch on/off can be realized. PIN CONNECTION June 2000 1/10 L4901A PIN DESCRIPTION N° 1 2 3 4 5 Name Input 1 Input 2 Timing Capacitor GND Reset Output .

® L4901A DUAL 5V REGULATOR WITH RESET . . . . . . . . . . . . OUTPUT CURRENTS : I01 = 400mA I 0 2 = 400mA FIXED PRECISION OUTPUT VOLTAGE 5V ± 2% RESET FUNCTION CONTROLLED BY INPUT VOLTAGE AND OUTPUT 1 VOLTAGE RESET FUNCTION EXTERNALLY PROGRAMMABLE TIMING RESET OUTPUT LEVEL RELATED TO OUTPUT 2 OUTPUT 2 INTERNALLY SWITCHED WITH ACTIVE DISCHARGING LOW LEAKAGE CURRENT, LESS THAN 1µA AT OUTPUT 1 LOW QUIESCENT CURRENT (Input 1) INPUT OVERVOLTAGE PROTECTION UP TO 60V RESET OUTPUT HIGH OUTPUT TRANSIS.

L4901A Features

* : - 5 V internal reference without voltage divider between the output and the error comparator ; - very low drop series regulator element utilizing current mirrors ; permit high output impedance and then very low leakage current error even in power down condi- 4/10 L4901A tion. This output may the

L4901A_STMicroelectronics.pdf