I'm confused about this, we use the TPS54424 to output 1.8V and it has been working fine.
A sample board lost the CAP of the BOOT pin, We found that the SW pin was shorted to GND.
When we replaced a new TPS54424 chip on it, the short was removed.
But after power-on, the SW pin is shorted again.
At this time, we found the Cboot is lost.
After repairing the CAP and replacing with a new TPS54424 chip, the circuit works fine again.
So is there any connection between the loss of Cboot and the short circuit of SW pin?