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TPS63002: Overheating component

Part Number: TPS63002

 We started to use the TPS63002 on a new PCB design, we noticed that the PCB was heating where the IC was placed, we isolated compoenent to check if the issue was coming from other components added after the IC. we also noticed that other boards do not get hot. By looking at the components placed on the PCBs, I noticed that on the PCB where the IC was not heating up was different.

The marking is as follows:

PCB Heating up  -> BPV 821 CLOX

PCB working Ok -> BPV 821 CHRV

Is there any difference within the ICs, we checked the dataheet and nothing regarding this marking was specified.