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Altera_Forum's avatar
Altera_Forum
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17 years ago

Is it safe to use 1.22V for C3 Vccint?

I'm putting together an Ethernet board that is almost done - but there isn't enough room for a full set of switching power supplies. (I'm trying to keep the board under 13sq.in) I've settled on...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

Suppose that you will have plenty of capacitors on power rails to keep power clean. They mainly cause in-rush current during power-up. As to in-rush current of C3 devices themselves, Fvm has answered your question. Please refer to the hot pluggable section of C3 data sheets or operation manual.