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L4903 Datasheet Dual 5v Regulator With Reset And Disable Functions

Manufacturer: STMicroelectronics

Overview: L4903 DUAL 5V REGULATOR WITH RESET AND DISABLE FUNCTIONS . . . . . . . . . . . .

General Description

The L4903 is a monolithic low drop dual 5 V regulator designed mainly for supplying microprocessor systems.

Reset, data save functions and remote switch on/off control can be realized.

PIN CONNECTION July1993 1/8 L4903 PIN FUNCTIONS N° 1 2 3 4 5 6 Name Input 1 Input 2 Timing Capacitor GND Disable Input Reset Output Function Low Quiescent Current 50mA Regulator Input 100mA Regulator Input.

Key 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 even in power conditions. This output may thereforebe used to supply circuits continuously, such as volatile RAMs, allowing the use of a back-up battery. The V02 can supply other non essential 5 V circuits which may be powered down when the system is inactive, or that must b.

More Datasheets from STMicroelectronics

Part Number Description
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L4920 VERY LOWDROP ADJUSTABLE REGULATORS
L4921 VERY LOWDROP ADJUSTABLE REGULATORS
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L4903 Distributor