[SI-LIST] Experience with Power supply collapse on boards due to excessive decoupling.

Hello SI-Folks,
 

I was wondering if some of you could share with me your experiences with
power supply collapse due to excessive decoupling of only a few values
of capacitor on boards drawing a lot of switching current. The situation
I am dealing with has ~400 in number of 0.1uF caps and ~200 in number of
1uf caps. The power supply shows a lot of noise ~400mV. 

 

Regards,

Vipul Badoni.

 


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