1.2 – 15V/3A adjustable regulated power supply

Rajkumar Sharma        
Project tested



This kit provides a variable output power supply ranging from 1.2 to 15 V @ 3 A.  It uses Low Dropout Positive Regulator LM1084 in TO220 package for delivering variable output voltage.

  • Input – 18 VAC/DC
  • Output – variable output from 1.2 ~ 15 V @ 3 A Regulated low ripple DC voltage
  • Heatsink for regulator IC
  • On board bridge rectifier to convert AC to DC
  • LED indication at input of IC
  • Zener trimmed band gap reference, current limiting and thermal shutdown (provided by IC feature)
  • Power Battery Terminal (PBT) for easy input and output connection
  • Onboard PCB mounted Potentiometer (POT) for varying the output voltage
  • Filter capacitors for low ripple DC output
  • Four mounting holes of 3.2 mm each
  • PCB dimensions 46 mm x 58 mm



Parts List



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