SparkFun BabyBuck Regulator Breakout - 5V (AP63357)
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The SparkFun 5V BabyBuck 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.
The [BabyBuck regulator](https://www.sparkfun.com/categories/tags/babybuck) is a minimalistic version of our [buck regulator boards](https://www.sparkfun.com/categories/tags/buck-boost). This 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 with a heat sink. With only four PTH pins for connecting input and output power, everything fits on a mere 0.63in. x 0.52in. board layout.
Check out the [SparkFun Buck Regulator Breakout - 5V (AP63357)](https://www.sparkfun.com/products/21255), for the larger, full-feature version of this board.
**Note:** While the AP63357 is rated up to a 3.5A output, users should expect a 3A maximum with our boards due to thermal constraints. The boards can output 3.5A but would require a sufficient amount of active cooling.
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