Breadboard Power Supply USB - 5V/3.3V

A simple breadboard power supply which take power from USB port and outputs a fuse protected and regulated 3.3V. The pins are mounted directly on the breadboard power lines. The output is 5V and 3.3V. The maximum power is 500mA (for USB2.0) and the fuse integrated on the circuit is 500mA. The board contains a ON/OFF switch to control the power. The dimension of the board is 32mm x 32mm (1.25x1.25")


Entire kit is comming as a bag of parts and you should have some experience with the soldering iron.


Kit Contains:
  • USB type B connector
  • TO-220 Voltage Regulator (LM317 1.5A max current)
  • PTC Resettable Fuse
  • 100uF 35V Capacitor
  • 10uF 25V Capacitor
  • 0.1uF 50V Capacitor
  • Power LED SPDT
  • Slide Switch
  • 4pcs 0.1" Header Pins
  • 330 Resistor
  • 1/6W 390 Resistor
  • 1/6W 240 Resistor
  • 1/6W Bare PCB with Silkscreen Indicators
  • Documents: Schematic

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