SLVUBQ1A August 2020 – May 2021 TPS543620
Figure 3-37 and Figure 3-38 show the overvoltage protection behavior of U2. This is tested by applying a step to the FB pin with a function generator through the VO_ADJ test point. The VO_ADJ test point is initially equal to the reference voltage of 0.5 V and is stepped up to 3.3 V. The TPS543620 attempts to restart immediately after the OVP fault is cleared. It does not wait for the hiccup time period.