The LM708x0-Q1 includes an internal hiccup mode protection function. When an overload condition occurs, a 512-cycle counter starts counting consecutive cycle-by-cycle current limit incidents after the internal soft-start sequence is completed. The 512-cycle counter is reset if four consecutive switching cycles occur without exceeding the current limit threshold. If V_FB > 400mV after 512-cycle counts are completed, the counter is restarted. When V_FB < 400mV and 512-cycle counts are completed, the internal soft-start output is pulled low and the internal high-side and low-side drivers are disabled. Then, a 16384 counter is enabled. After the counter reaches 16384, the internal soft-start circuit is enabled, and the output re-starts. Note: the Hiccup mode current limit is not enabled during the soft-start time and until the feedback voltage exceeds 0.4V.