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SparkFun Buck Regulator Breakout - 5V (AP63357)

SparkFun Buck Regulator Breakout - 5V (AP63357)

Pimoroni

£6

Price read from Pimoroni on 2026-10-22. Check before buying.

The SparkFun 5V Buck Regulator Breakout features the AP63357 from Diodes Inc., a 3.5A synchronous buck converter with a wide input voltage range of 3.8V to 32V. The fully integrated 74mΩ high-side power MOSFET/40mΩ low-side power MOSFET provides a high-efficiency step-down DC/DC conversion. This full-size, 1in. x 1in. version of the buck regulator board is configured to provide a regulated 5V output (from a 6 to 32V input voltage range) and features a high-voltage EN (enable) control pin that is rated up to 32V. On the back of the board, a small copper pad is available to dissipate excess heat

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The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.