# SparkFun Breadboard Power Supply Stick - 3.3V/1.8V

**Type:** Product page · **SKU:** PRT-13157 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/sparkfun-breadboard-power-supply-stick-3-3v-1-8v.html ([markdown](https://core-electronics.com.au/sparkfun-breadboard-power-supply-stick-3-3v-1-8v.html.md))

## Retired product

This product is retired and no longer available for purchase. Search the catalogue for an alternative.

## Description

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](https://github.com/sparkfun/Breadboard_Power_Supply_Stick_3.3V-1.8V/tree/v_14) (Design Files)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/p/r/prt-13157.jpg)