TPS7A78: TPS7A78

Hi Shlomo,

PSRR is very difficult to measure beyond 10MHz. And actually, beyond 100kHz-1MHz, the bandwidth of the error amp is not doing anything to attenuate PSRR. This is mostly the output capacitor and any additional filtering you may want to add.  If noise in the 100-200MHz range is a concern, one way to mitigate this might be to use a ferrite bead in the form of a pi filter. 

I hope this answers your question.