Hello, I’m using a D24V22F5 on my PCB design for a UWB Application. As the board would content various systems at 3.3V, I’ll use D24V22F5 to drop down the voltage from 24V to 5V.
The question is, Do you recommend to put external bypassing capacitors? If yes, what could be the best values for them? if not, why?
I attached an image of the actual design.
Hi.
The D24V22F5 regulator already has several bypass capacitors on its input and output including a large electrolytic type capacitor on each, so additional capacitance is not generally needed. If you are able to, you might test the regulator in your system without added capacitors first.
Note that adding more capacitance usually doesn’t hurt anything and there is the option to not populate the capacitors on your PCB if it turns out you do not need it, so you might add the footprints for them anyway.
-Claire
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