SparkFun Buck-Boost Converter

The SparkFun Buck-Boost Converter is a powerful accessory board designed to regulate the power supply to your project. This versatile converter accepts an input voltage ranging from 3-16V and can regulate this to an output voltage between 2.5-9V. It features a switch that allows you to set standard output voltages of 3.3V and 5V. Additionally, it offers a custom setting that enables you to solder a resistor according to your specific voltage needs. For added convenience, the GPIO pins are broken out along the top of the board for enhanced control.

The SparkFun Buck-Boost Converter stands out due to its use of a switching DC/DC converter, which is significantly more efficient than a linear regulator. This higher efficiency translates to less wasted energy and reduced heat generation. The converter also incorporates overtemperature protection and an optional heatsink, enabling it to achieve an efficiency rating of up to 95%.

The SparkFun Buck-Boost Converter is equipped with an array of features that make it a reliable and efficient choice for controlling power supply. These include an input voltage range of 3-16V, adjustable output voltage from 2.5-9V, three selectable output voltages (3.3V, 5V, or custom), and broken-out GPIO for additional control. It operates within a die temperature range of -40 to +125°C and includes an optional heatsink. With an efficiency of up to 95% and overtemperature protection, it ensures optimal performance.

For your convenience, the SparkFun Buck-Boost Converter comes with a range of supporting documents. These include a schematic, Eagle Files, a hookup guide, a datasheet for the TPS63070, a graph of maximum output current versus input voltage, and a GitHub Hardware Repo.