Other Parts Discussed in Thread: TPS22976EVM,
Hi - I received a TPS22953EVM today. Weirdly, the enable of the DSQ part doesn't work. ie. regardless of the position of jumper on JP2, power is fed from the input to the output. The DQC part works fine, as expected. This is especially odd since I had a problem with a TPS22976EVM (elsewhere in the forum) just a week or so back. I'm sure I'm not doing anything wrong because all I've done is hook up 4V to the input and measure the output!
Anyway, here's the design I'm trying to evaluate. It's for a USB peripheral. 5VSw is the output that powers everything else. Normally it will operate with 5V0_USB but if 5V0 is present (becuase someone's plugged in an external supply) - it will use that in preference. 5VSource indicates which supply is being used. Can you see any problems?