Re: Any known issues with TPS71xxx regulators?



Joerg wrote:

I am sure TI wouldn't endorse this. The ESR needs be low and placing a
10ohm resistor in series would carry the potential that the whole thing
bursts into oscillation.

The input capacitor could be increased a bit but it's on the HV side so
it would cost some space. And right now it is all pretty much what the
data *** recommend. Let's see what TI comes back with tomorrow.

I've just seen some changes to regulator datasheets where there is a caution
about having too low an ESR capacitor. Surprised the hell out of me: not
something I would have looked for, but now I know. May be worth checking
out (Issue is loop stability and would not expect it to be distructive to
the part but...)

M Walter
.


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