When changing MAX77643 output from one low volt to high volt, sometimes it will trigger fault issue.
When the output voltage is increased, it takes time to ramp up to the target voltage. During this time, since the output voltage is still below target, the fault flag is raised.
However, if the output ramps up to the target quickly enough, the fault flag is not raised.
A simple solution to this is to change the output voltage before enabling. In this case, the fault flag does not set.