LM3503 A adjustable positive regulator

LM350 is a three-terminal adjustable positive linear regulator in the 3 A class. Its floating control loop maintains approximately 1.25 V between OUTPUT and ADJUST, and two resistors translate that reference into the desired output voltage. The nominal adjustment range is 1.2–33 V when input headroom, minimum load and thermal requirements are satisfied. Excess input voltage becomes heat in the series pass stage; a 3 A current capability does not mean the bare package can continuously dissipate the resulting power. This page follows the standard TI LM350 column in SNVS772B and the LM350T/NOPB TO-220 package. The front-view leads are ADJUST, OUTPUT and INPUT, and the metal tab is OUTPUT. A 9 V-to-5 V example uses a 110 Ω / 330 Ω divider, a 50 Ω load and local bypass capacitors to show regulation, minimum-load margin and dissipation together.