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TPS7A52-Q1: LDO regulating with load to a higher Output voltage than configured

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Part Number:TPS7A52-Q1

Hi,

using the TPS7A52-Q1 to have a stable 1,95V voltage at the Output. Supply it with stable 5V from another LDO.

On my first PCB where I designed it on I see that it is quite often showing the correct 1,95V (without load). Sometimes I see when making Tests with Multimeter/Oszi that the Output Shows more than the 1,96V (2...2,5V) and going then down to the 1,95V.

With a load (another digital device which Needs 1,95V) I see that it is going up to 2,59V?! (stable).

I dont know why.

Here is the schematic:

Does anybody have an idea whats Happening here?

Thanks,

Markus


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