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SparkFun MOSFET Power Switch and Buck Regulator - Low-Side - SparkFun COM-23979

Index: SPF-24583 EAN: 5904422385583
The SparkFun MOSFET Power Switch and Buck Regulator combines two functionalities - it works as a step-down regulator and a low-voltage switch at the same time. It is equipped with an LMR14203 (buck regulator), configured for a 3.3V output, and an N-channel MOSFET transistor configured as a Low-Side Switch. This allows you to power your project with up to 12V / 10A while providing 3.3V to the logic part of the control board.
SparkFun MOSFET Power Switch and Buck Regulator - Low-Side - SparkFun COM-23979
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Manufacturer: SparkFun

Product description: SparkFun MOSFET Power Switch and Buck Regulator - power switch and step-down converter - Low-Side - SparkFun COM-23979

The SparkFun MOSFET Power Switch and Buck Regulator combines two functionalities - it works simultaneously as a step-down regulator and a low-voltage switch . It is equipped with an LMR14203 (buck regulator) configured for a 3.3 V output, and an N-channel MOSFET (PSMN7R0-100BS) configured as a Low-Side Switch. This allows you to power your project with a voltage of up to 12 V / 10 A , while simultaneously providing 3.3 V to the logic part of the control board. The manufacturer has equipped the module with a number of interfaces and useful connectors through which you can connect the power supply to a selected microcontroller (Arduino, micro:bit or Raspberry Pi).

Check out the manufacturer's user guide !

SparkFun MOSFET Power Switch and Buck Regulator - power switch and step-down converter - Low-Side - SparkFun COM-23979.

Built-in flyback diode protects against overvoltages generated by inductive loads.

Main features of the module

  • LMR14203 buck regulator : configurable to 3.3V output, allows powering low-voltage modules.
  • N-channel MOSFET : Low-Side switch allows control of loads up to 10 A.
  • Wide supply voltage range : can be powered from 4.5V to 12V, which ensures versatility in various applications.
  • Simple integration : thanks to the PTH pinouts, the module can be easily integrated into existing systems.
  • Surge Protection : Built-in flyback diode protects against surges generated by inductive loads.

The manufacturer recommends not to load the module with a current higher than 10 A.

Technical specification of the module

  • Input voltage range: 4.5V to 12V
  • Step-down voltage regulator: LMR14203, configured for 3.3V/300mA output
  • N-Channel MOSFET: PSMN7R0-1000BS, configured as a low-voltage switch
  • Outputs:
    • Input: 5.5/2.1mm DC
    • Output: Poke-Home connectors
    • Control Pins: 1x4 female connectors with a pitch of 2.54 mm
  • Built-in Flyback diode on load
  • Board dimensions: 38.1 x 38.1 mm
  • Plate weight: 9.9 g

The board contains a PSMN7R0-1000BS N-channel MOSFET transistor.

Voltage to 4.5 V
Voltage from 12.0 V
Current 3.5 V
Package width 5.3 cm
Package height 9 cm
Package depth 1.7 cm
Package weight 0.01 kg

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