L4904A Datasheet - STMicroelectronics

L4904A DUAL 5V REGULATOR WITH RESET

The L4904A 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 1/9 L4904A PIN FUNCTIONS N° 1 2 3 4 5 6 Name Input 1 Input 2 Timing Capacitor GND N.C. Reset Out.

® L4904A DUAL 5V REGULATOR WITH RESET . . . . . . . . . . . . OUTPUT CURRENTS : I01 = 50mA I 02 = 100mA 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 NORMALLY HIGH OUTPUT.

L4904A Features

* : - 5 V internal reference without voltage divider between the output and the error comparator ; - very low drop series regulator element utilizing mirrors ; permit high output impedance and then very low leakage current even in power down conditions. This output may thereforebe used to supply circu

L4904A_STMicroelectronics.pdf