Rick,
The power IC has a internal power path manager which has an out pin, and this output in turn supplies all other voltage regulators.
Normally, given 5V DC input, the output in of of the power path manager gives 3.6V output; but after the burning I measured 4.9V. It looks to me likely that the power path manager has failed.
It is also true that the PMIC module has also MOSFETs and inductors. However, MOSFETs and inductors are all part of sub-modules which are supplied from the power path manager's output, then if the power path manager failed at first there is no way to test these down-stream parts.
Your answer helped a lot. I will make a closer examination.
Matt