Hi, I am using TPS62290DRVT regulator IC for converting 5V to 3.3V in my project. I have the following issue. This IC often gets shorted & results in huge dissipation of heat in my project's PCB. The SW pin is the one that gets shorted with ground pin. This short/heating issue occurs occasionally and whenever I replace it with a new IC of the same part the board works fine again. But after some time or after so many uses, the problem recurs even with new ICs. Could anyone provide me a solution for this issue? I also need an explanation why this problem occurs only occasionally and not everytime. Kindly reply me as soon as possible.