LM309 Datasheet - National Semiconductor

LM309, 5-Volt Regulator

LM109/LM309 5-Volt Regulator April 1998 LM109/LM309 5-Volt Regulator General .
The LM109 series are complete 5V regulators fabricated on a single silicon chip.

Features

* n Specified to be compatible, worst case, with TTL and DTL n Output current in excess of 1A n Internal thermal overload protection n No external components required Schematic Diagram DS007138-1 © 1999 National Semiconductor Corporation DS007138 www. national. com Absolute Maximum Ratings (Note 1

Applications

* Fixed 5V Regulator Adjustable Output Regulator DS007138-4 DS007138-2
* Required if regulator is located more than 4" from power supply filter capacitor. †Although no output capacitor is needed for stability, it does improve transient response. C2 should be used whenever long wires are used to c

LM309_NationalSemiconductor.pdf