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L4902A - DUAL 5V REGULATOR WITH RESET AND DISABLE

General Description

The L4902A is a monolithic low drop dual 5V regulator designed mainly for supplying microprocessor systems.

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

Key Features

  • : - 5V 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 down condition. 4/9 L4902A This output may thereforebe usedto supply circuits continuously, such as volatile RAMs, allowing the use of a back-up battery. The V02 output can supply other non essential 5 V circuits which may be powered down when the system is in.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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® L4902A DUAL 5V REGULATOR WITH RESET AND DISABLE . . . . . . . . . . . . . DOUBLE BATTERY OPERATING OUTPUT CURRENTS : I01 = 300 mA I02 = 300 mA 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 OUTPUT 2 DISABLE LOGICAL INPUT LOW LEAKAGE CURRENT, LESS THAN 1µA AT OUTPUT 1 RESET OUTPUT NORMALLY HIGH INPUT OVERVOLTAGE PROTECTION UP TO 60V OUTPUT TRANSISTORS SOA PROTECTION SHORT CIRCUIT AND THERMAL OVERLOAD PROTECTION HEPTAWATT (Vertical) ORDERING NUMBER : L4902A DESCRIPTION The L4902A is a monolithic low drop dual 5V regulator designed mainly for supplying microprocessor systems.