1. Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
    Dismiss Notice
crutschow

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

    crutschow
    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: