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.

Dimensions: 2.15x0.65"

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

Documents:

• Schematic
• Eagle Files
• Unregulated Power Supply Tutorial
• GitHub (Design Files)