Saturday, 13 October 2018

mosfet - 3.3v high side switch


I want to replace my relay with a high side MOSFET switch. I am a new to all this and I don't know how to choose the components.


The load needs around 200mA at 3.3v with the control coming from a open collector pin on a microcontroller. After some searching I found the following circuit. How do I modify this to run at 3.3v instead of 12v?


enter image description here





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