SparkFun Buck Regulator Breakout - 3.3V (AP3429A)

Description SparkFun Buck Regulator Breakout - 3.3V (AP3429A) Features a 2A step-down DC converter Provides a regulated 3.3V output from a 3.9V to 5.5V input Includes a copper pad for efficient heat management Offers multiple power input/output options for flexibility The SparkFun Buck Regulator Breakout - 3.3V (AP3429A) is a sophisticated device that features the AP3429A from Diodes Inc. This device is a 2 A step-down DC converter with an input voltage range of 2.7 V to 5.5 V. The full-size version of the buck regulator boards, measuring 1 inch by 1 inch, is designed to provide a regulated 3.3 V output. This output is derived from an input voltage range of 3.9 V to 5.5 V and is controlled by an EN (enable) pin. To manage excess heat, the device is equipped with a 0.6-inch by 0.5-inch copper pad. This pad is designed to facilitate the attachment of a heat sink to the bottom of the board. As a full-size buck regulator breakout, this device offers additional options for connecting input and output power. It includes 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. The device also includes a red power indication LED that illuminates when the power output is enabled. The board is designed with four mounting holes compatible with 4-40 hardware. View more What's Included 1x SparkFun Buck Regulator Breakout - 3.3V (AP3429A) Dimensions 1 x 1 inch (L x W) Links PDF File SparkFun Buck Regulator Breakout - 3.3V (AP3429A)  - Schematics Website SparkFun Buck Regulator Breakout - 3.3V (AP3429A)  - Hookup Guide Specifications Buck Board Three power input/output options: Pre-assembled 4-pin screw terminal Five 0.1 inch spaced PTH pins Four plated slots for a DC barrel jack (input only) Power connections: VIN - Power In (3.9 V to 5.5 V) GND - Common Ground VOUT - Power Out (Regulated 3.3 V) EN - Enable (Pull high to enable the power output) Red, power LED indicator 0.5 x 0.6 inch Plated copper pad (for heat sinks) AP3429A VIN: 2.7 V to 5.5 V VOUT: 0.6 V to VIN 2 A Continuous Output Current 90µA No-Load Quiescent Current 1 MHz Switching Frequency Protection Circuitry Undervoltage Lockout (UVLO) Input Overvoltage Protection Over Current Protection Cycle-by-Cycle Peak Current Limit Thermal Shutdown (160 °C / 320 °F)