TPS51220A: OCP reaction time

Hello Jerry,

In an overcurrent condition, the current to the load exceeds the current to the output capacitor thus the output voltage tends to fall down..When output voltage becomes lower than 70% of the target voltage, the UVP is triggered and an internal UVP delay counter begins counting. After 1 ms, TPS51220A latches OFF both high-side and low-side MOSFETs.

So UVP delay time is OCP reaction time. It is 1ms.

best regards.