Using the MP24971 as a 5volt power supply for a small usb microcontroller project.
We are having issue when we test supply failure and create many on / off events in a short amount of time. (similar to when customer plugs the unit in and fumbles with the plug creating many short power events).
The MP24971 does not startup, and does not recover. We have 0.8 Volts on the output, and 5V on the Bootstrap pin. Input voltage is 12 Volts. Current draw on the entire project is 180mA. Unplugging for 2 seconds and then repowering, the device starts as expected. We see this event after approximately 20 restarts.
The Datasheet refers to Output Over-Voltage protection. where the part will be “lathed” off (page 9) after a timer delay. There is no indication in the datasheet to show when the chip is in this Over voltage state. I suspect that the translation “lathed” off refers to “Turned” off.