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ELECTRONICS

Latching Power Switch with MAX16054

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UPDATED 2026-08-03
TYPECircuit
USE-CASELatching Power Switch
EXAMPLELatching Power Switch with MAX16054
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CASE ANALYSIS

Scenario

A battery-powered Arduino Nano project needs a soft latching power switch to conserve power and avoid the need for a mechanical switch.

Key decisions

  • Using a MAX16054 IC for debounced push-button on/off control.
  • Using a P-channel MOSFET as a high-side switch to minimize voltage drop.
  • Adding a pull-up resistor to keep the MOSFET off when the controller output is high-impedance.

When to reuse this

When designing battery-operated devices that need a low-power standby state and a simple user interface with a single button.

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