{"product_id":"sparkfun-mosfet-power-switch-and-buck-regulator-low-side","title":"SparkFun MOSFET Power Switch and Buck Regulator (Low-Side)","description":"\u003cp\u003eDoes your microcontroller need to control a high-voltage item, like a 12V LED strip, while also needing to be powered? Do you want to avoid having multiple power adapters and microcontrollers for your project? The MOSFET Power Switch and Buck Regulator (Low-Side) is one product we needed at SparkFun, so we figured other folks might have the same problem. Power the board with up to 12V and control up to 10A, all while providing a sweet 3.3V to your control board.\u003c\/p\u003e \u003cp\u003eThe SparkFun MOSFET Power Switch and Buck Regulator (Low-Side) combines two circuits into one board: an LMR14203 buck regulator configured to output 3.3V and an N-channel MOSFET (PSMN7R0-100BS) configured as a low-side switch. A flyback diode is also on the load side for devices with back EMF! Simply pull the CTL pin low to activate the load.\u003c\/p\u003e \u003cp\u003eVarious connectors (barrel jack, female header, and poke-home) are provided to connect a power supply to a microcontroller of your choice (\u003ca href=\"\/ru\/collections\/arduino-store\"\u003eArduino\u003c\/a\u003e, \u003ca href=\"\/ru\/collections\/micro-bit-store\"\u003emicro-bit\u003c\/a\u003e, \u003ca href=\"\/ru\/collections\/raspberry-pi-store\"\u003eRaspberry Pi’s\u003c\/a\u003e microcontroller) and load them together. VCC, 3.3V, CTL, and GND are also broken out through 0.1\" spaced PTHs for those who prefer to solder. Two LEDs (PWR_LED and ON_LED) indicate when there is 3.3V and whenever power is applied to the load. Jumpers are included on the back to disable the LEDs. A MEAS PTH jumper is also included for those interested in precisely measuring the current consumption of the system.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eNote\u003c\/strong\u003e: While the MOSFET is rated to 100A\/100V, we don't recommend you go much above 10A as the PCB polygon pours and traces become the limiter.\u003c\/p\u003e \u003cp\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_MOSFET_Power_Switch_and_Buck_Regulator_Low-Side\/introduction\/\"\u003eGet Started with the Sparkfun Mosfet Power Switch and Buck Regulator Guide\u003c\/a\u003e\u003c\/p\u003e \u003ch2\u003eFeatures\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eInput Voltage Range: 4.5V to 12V\u003c\/li\u003e \u003cli\u003eLMR14203 Step Down Voltage Regulator \u003cul\u003e \u003cli\u003eConfigured to Output 3.3V\/300mA\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003ePSMN7R0-1000BS N-Channel MOSFET \u003cul\u003e \u003cli\u003eConfigured as a Low-Side Switch\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003eConnectors \u003cul\u003e \u003cli\u003eInput: 5.5mm x 2.1mm Barrel Jack (Center-Positive)\u003c\/li\u003e \u003cli\u003eOutput: Poke-Home Connectors\u003c\/li\u003e \u003cli\u003eControl: 1x4 Female Headers\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003e0.1\"-spaced PTHs\u003c\/li\u003e \u003cli\u003eBuilt-in Flyback Diode on Load\u003c\/li\u003e \u003cli\u003eLEDs \u003cul\u003e \u003cli\u003ePWR\u003c\/li\u003e \u003cli\u003eON\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003eJumpers \u003cul\u003e \u003cli\u003ePWR_LED\u003c\/li\u003e \u003cli\u003eMEAS\u003c\/li\u003e \u003cli\u003eON_LED\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003eDimensions: 1.50\" x 1.50\" (38.1mm x 38.1mm)\u003c\/li\u003e \u003cli\u003eWeight: 9.9g\u003c\/li\u003e \u003c\/ul\u003e \u003ch2\u003eResources\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_MOSFET_Power_Switch_and_Buck_Regulator_Low-Side\/assets\/board_files\/SparkFun_MOSFET_Power_Switch_and_Buck_Regulator_Low-Side_Schematic_V11.pdf\"\u003eSchematic\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_MOSFET_Power_Switch_and_Buck_Regulator_Low-Side\/assets\/board_files\/SparkFun_MOSFET_Power_Switch_and_Buck_Regulator_Low-Side_V11.zip\"\u003eEagle Files\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_MOSFET_Power_Switch_and_Buck_Regulator_Low-Side\/assets\/img\/SparkFun_MOSFET_Power_Switch_and_Buck_Regulator_Low-Side_Board_Dimensions.png\"\u003eBoard Dimensions\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_MOSFET_Power_Switch_and_Buck_Regulator_Low-Side\"\u003eHookup Guide\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/github.com\/sparkfun\/Fritzing_Parts\/blob\/main\/products\/23979_sfe_n-channel_mosfet_power_switch_buck_regulator_low-side_transistor.fzpz\"\u003eFritzing Part\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDatasheet\u003c\/strong\u003e \u003cul\u003e \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_MOSFET_Power_Switch_and_Buck_Regulator_Low-Side\/assets\/component_documentation\/lmr14203.pdf\"\u003eLMR14203\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_MOSFET_Power_Switch_and_Buck_Regulator_Low-Side\/assets\/component_documentation\/PSMN7R0-100BS.pdf\"\u003ePSMN7R0-100BS\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/github.com\/sparkfun\/SparkFun_MOSFET_Power_Switch_and_Buck_Regulator_Low-Side\"\u003eGitHub Hardware Repo\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e","brand":"Sparkfun","offers":[{"title":"Default Title","offer_id":50847295242513,"sku":"COM-23979","price":14.2,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6285\/6209\/files\/sparkfun-mosfet-power-switch-and-buck-regulator-low-side-sparkfun-com-23979-42564966449347.jpg?v=1735210309","url":"https:\/\/abcd3032.myshopify.com\/ru\/products\/sparkfun-mosfet-power-switch-and-buck-regulator-low-side","provider":"Tayyab Zak","version":"1.0","type":"link"}