Paralleling capacitors
wenyuan , 08-27-2024, 03:40 AM
How many decoupling capacitor and bypass Cap we need in power rail near the ic And what value do we need
Robert Feranec , 08-27-2024, 04:45 AM
https://youtu.be/ARwBwHZESOY
wenyuan , 08-28-2024, 04:16 AM
There is no direct answer to my question ❓❓❓
wenyuan , 08-28-2024, 04:16 AM
In your video
wenyuan , 08-28-2024, 04:16 AM
I mean hardware design, not pcb layout design
Robert Feranec , 08-28-2024, 06:11 AM
smallest footprint with biggest value, that is the answer from the video. everything else is based on optimization e.g. price, size, etc ... I believe in your picture they fitted the largest capacitor with biggest value, if you can fit that value into do smallest footprint, you don't need three of them.
QDrives , 08-28-2024, 08:12 PM
As with about everything in electronics: no, there is no direct answers. Just about everything depends.Depending on many things too. For your decoupling capacitor for instance:- The voltage drop that is allowed- The impedance of your PDN- The smallest side component that you use- etc.
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