I have been confused about the cause of the damage of lp87524. When I saw the datasheet described it has a lot of protection, such as overvoltage, overcurrent, over temperature, etc., but I have encountered frequent damage problems, mainly divided into the following:
1. When connecting JTAG for debugging, everything looks normal, but once power is turned on, it will find that 3.3V has been short-circuited and cannot be started.
2. When I was testing with a multimeter, I accidentally shorted the 1.2V output of sw1 to input 5V, and then sw1 was damaged.
I want to know what caused the damage and I can't find the cause of the damage. Thank you