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Push Button On/Off, Low Quiescent Power, High-Side MOSFET Power Switch

Simple high-side switch requires only two active devices and a few passive parts

  1. Momentary High Side On/Off with CD4049

    Simulation below shows good switching action at power supply voltages from 3V to 15V (18V absolute maximum due to CD4049 limit).

    Push ON-Off Sw 2.PNG

    Attached Files: