TPS6594-Q1: PMIC stuck in reset output low

Is only the nRSOUT Low? Are any of the PMIC rails powered up?

Do any PMIC rails make attempts to power up?

Please refer to this FAQ to help with debug:

 [FAQ] TPS6594-Q1: LP8764-Q1: Debugging PMIC Behavior with Interrupt Interpretation. 

Hi Mike,

I've just done both PMICs power rails measurement, see the measurements:

as you can see most of power rails are 0V, next step I will hook up the scope and check if PMICs are attempting to start up.

We believed that one possible cause for the output zero is the overload condition being met, so we are trying to see if anything could cause that on each rail.

another thing I am not very sure, since we have 2 PMICs in our system, do you think it can cause output zero if mis-communication between 2 PMICs?

or you have other insight ?

Thanks

Max