SparkFun Buck Regulator Breakout - 3.3V (AP63203)
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Add a regulated 3.3-volt supply to a project with this AP63203 breakout. The synchronous buck converter sits on a one-inch-square board with several power-wiring options. Screw terminals, barrel-jack solder pads and plated through holes support different assembly choices, providing a starting point for integrating step-down regulation into an electronics enclosure.
Before you buy
Check the board’s specified input range, load current and thermal conditions before use.
SparkFun SKU: COM-18356 · Category: DC-DC power regulators
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Official product specifications and documentation
EAR summary based on supplier documentation; this is not a hands-on review. Product identity rechecked during the October 25, 2026 sprint. Current SparkFun Originals eligibility was verified with the supplier’s Original: Yes filter during the October 25, 2026 sprint. Affiliate eligibility remains subject to SparkFun's program terms.