Buck-Boost Hookup Guide

Contributors: Alex the Giant
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We got tha powah! The Buck-Boost Converter is the latest breakout from SparkFun that allows you to fine tune the amount of power your project receives. It can take an input voltage of anywhere from 3-16V which can then be regulated to an output voltage between 2.5-9V. With the switch on the bottom of the board, you can set the common output voltages of 3.3V and 5V, but we've also broken out a custom setting that allows you to populate a resistor based on your custom voltage needs. What's more, we have broken out the GPIO pins along the top of the board for even more control. Get your boost on!

SparkFun Buck-Boost Converter

SparkFun Buck-Boost Converter


Required Materials

To follow along with this tutorial, you will need the following materials. You may not need everything, depending on what you have. Add it to your cart, read through the guide, and adjust the cart as necessary.


You may also need a soldering iron, solder, and general soldering accessories.

Soldering Iron - 60W (Adjustable Temperature)

Soldering Iron - 60W (Adjustable Temperature)

Solder Lead Free - 15-gram Tube

Solder Lead Free - 15-gram Tube


Suggested Reading

If you aren’t familiar with the following concepts, we recommend checking out these tutorials before continuing.

How to Solder: Through-Hole Soldering

This tutorial covers everything you need to know about through-hole soldering.

Logic Levels

Learn the difference between 3.3V and 5V devices and logic levels.

Electric Power

An overview of electric power, the rate of energy transfer. We'll talk definition of power, watts, equations, and power ratings. 1.21 gigawatts of tutorial fun!