{"title":"SparkFun Buck Regulator Breakout - 5V (AP63357)","handle":"sparkfun-buck-regulator-breakout-5v-ap63357","url":"/products/sparkfun-buck-regulator-breakout-5v-ap63357","description":"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 our buck regulator boards 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.  As a full-size buck regulator breakout, additional options for connecting input and output power. There is a pre-assembled screw terminal for a non-permanent connection, the option to solder on a barrel jack for an external power supply, and five PTH pins to create a more permanent installation. Our full-size buck regulators also come with a red, power indication LED that light up when the power output is enabled and two mounting holes compatible with 4-40 hardware.  Check out our BabyBuck regulators and the SparkFun BabyBuck Regulator Breakout - 5V (AP63357), for the smaller minimalistic versions of our buck regulators.  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.   Get Started with the SparkFun AP63357 Buck Regulator Guide   Features:  Buck Board:   1in. x 1in. PCB layout Three power input/output options:   Pre-assembled 4-pin screw terminal Five 0.1in. spaced PTH pins Three plated slots for a DC barrel jack (input only)\n \n Power connections:   \nVIN - Power In (6V to 32V) \nGND - Common Ground \nVOUT - Power Out (Regulated 5V) \nEN - Enable (Pull high to enable the power output) \n Red, power LED indicator 0.5in. x 0.6in. Plated copper pad (for heat sinks)\n   AP63357:   VIN 3.8V to 32V 3.5A Continuous Output Current 0.8V ± 1% Reference Voltage 22µA Low Quiescent Current (Pulse Frequency Modulation) 450kHz Switching Frequency Supports Pulse Frequency Modulation (PFM)   Up to 86% Efficiency at 5mA Light Load \n Proprietary Gate Driver Design for Best EMI Reduction Frequency Spread Spectrum (FSS) to Reduce EMI Low-Dropout (LDO) Mode Power Good Indicator with 5MΩ Internal Pull-up Precision Enable Threshold to Adjust UVLO Protection Circuitry   Undervoltage Lockout (UVLO) Output Undervoltage Protection (UVP) Cycle-by-Cycle Peak Current Limit Thermal Shutdown \n   Documents:   Schematic Eagle Files Board Dimensions Hookup Guide \nDatasheet (AP63357) \nManufacturer's Product Page (AP63357)   Technical Documentation Diodes Technical Support Page \n GitHub Hardware Repo ","vendor":"SparkFun","product_type":"physical","in_stock":false,"options":[],"variants":[{"id":1717,"title":"Default Title","sku":"SF-COM-21255","price":17.67,"on_sale":false,"in_stock":false,"available_quantity":0,"option1":"Default Title"}]}