🛠️ Invention or technique

LM317

Date
1976 · confidence high
Place
Santa Clara, California, United States
Credited to
Bob Dobkin
Field
Matter & energy

What it is

A three-terminal adjustable positive linear voltage regulator IC, designed by Bob Dobkin at National Semiconductor, which simplified regulated power supply design and became a standard electronic component.

What it led to

  • standardization of adjustable linear power supply design
  • pairing with the LM337 negative regulator by Bob Pease
  • wide adoption in consumer and laboratory electronics
  • basis for numerous later integrated regulators

Links

Sources✓ verified 2026-09-28