Other Parts Discussed in Thread: LMX2594, TPS7A8300,
I am trying to understand the way LMX2594 are powered.
I can see there are several options, I guess one of which is using +3.3V_ALL that is supplied by TPS54318RTE.
However I am more interested in supplying 3.3V using the LDOs.
The LMX2594 is powered by U12 (TPS7A8300). The input to U12 is either 5VIN or +3.3V_ALL. I guess supplying 5VIN would cause roo much heat generated in the LDO while if you apply +3.3V_ALL to U12 at the output you would not get 3.3V.
So I guess for using the LDOs TPS54318RTE is configured to produce a liittler more than 3.3V? Am I right?
Shortly what I am trying to learn is the chain of supplies powering the LMX2594 a sequential order and the corresponding voltages at the output of each stage?