TPS54625: Output Latch Off Issue When Input Voltage Power Interrupt Test

Part Number:TPS54625

Hi,

My customer is doing power interrupt test, but the output voltage latched-off for some reason. I think this issue is similar to what discussed on the other thread. The input voltage is 12V and the output voltage is 5V.

https://e2e.ti.com/support/power-management/f/196/p/451494/1625681?tisearch=e2e-sitesearch&keymatch=tps54625#1625681

In his test, it took 8ms after returning input voltage from the time when output voltage goes below 65%. He tried 8.2nF, 100nF, 470nF SS capacitors as suggested in the thread, but it didn't work for all cases. Could you please help me solve this issue?

Best regards,

Itoh