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TPS53319: DCAP question

Part Number: TPS53319
Other Parts Discussed in Thread: TPS53515, TPS548A28

Hi team,

I was curious, DCAP by definition should use vout ripple information directly from the output CAP, also DCAP2 need vout to generate ripple injection too.

but I don't see any vout pin in this device or other DCAP2/3 converters, Do these IC take this ripple information from VFB instead of Vout or what?

Regards,

Fred