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Altera_Forum's avatar
Altera_Forum
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16 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
16 years ago

I appreciate the answer. I've already bitten the bullet, and redesigned the power supply. I'm not using the TI part, but I am going with switchers for the 3.3 and 1.2V rails. I did end up going with a small LDO for the Vccaux, about 350mA.

It's a bit of a pain, but I'd rather have a stable, cool power supply for the board - particularly if I end up doing the add-in board.