Price: $30.30

This is a very simple board that takes a 4-9V input voltage and outputs a selectable 1.8V or 3.3V regulated voltage. All headers are 0.1" pitch for simple insertion into a breadboard.

Input power can be supplied to either the DC barrel jack or the two pin header labeled + and -. Output power is supplied to the pins labeled GND and VCC. Board has both an On/Off switch and a voltage select switch (3.3V/1.8V).

The two sets of four GND and VCC pins are spaced such that when connected to our Basic Breadboard both power busses will be powered.

Note: Headers are not supplied. You will need to supply your own headers to connect this board to a breadboard. Check below for some breakaway header strips.

Features:

  • 4-9V input voltage via barrel jack or 2-pin header
  • 3.3V or 1.8V regulated output voltage
  • 800mA Operating Current
  • ON/OFF switch
  • Output voltage select switch
  • Power status LED
  • PTC fuse protected power
  • 5.5x2.1mm center positive barrel jack
  • 2.15x0.65"

Documents:

  • [Schematic](https://cdn.sparkfun.com/datasheets/Prototyping/Breadboard Power Supply - 3.3-1.8SMD_V14.pdf)
  • [Eagle Files](https://cdn.sparkfun.com/datasheets/Prototyping/Breadboard Power Supply - 3.3-1.8SMD_V14.zip)
  • Unregulated Power Supply Tutorial
  • GitHub (Design Files)