LM317

The LM317 is a popular variable voltage regulator. It was invented by Robert C. Dobkin and Robert J. Widlar in 1970[1] while they worked at National Semiconductor.

Contents

Specifications

Vout range 1.25 V – 37 V
Vin – Vout difference 3 V – 40 V
Operation ambient temperature 0℃ – 125℃
Output Imax less than 1.5 A (assuming factory-suggested heat sinking)
Minimum Load Currentmax 10 mA

See also

References

  1. ^ US patent 3617859, Robert C. Dobkin, Robert J. Widlar & Robert J. Widlar, "ELECTRICAL REGULATOR APPARATUS INCLUDING A ZERO TEMPERATURE COEFFICIENT VOLTAGE REFERENCE CIRCUIT", published 1971-11-02, assigned to National Semiconductor Corporation 

External links