SNVSAU3B December 2017 – October 2019 LM76002-Q1 , LM76003-Q1
CCM operation is employed in the LM76002-Q1/LM76003-Q1 when the load current is higher than ½ of the peak-to-peak inductor current. If the load current is decreased, the device enters DCM mode. In CCM operation, the frequency of operation is constant and fixed unless the minimum tON or tOFF are exceeded which causes the part to enter fold back mode (refer to Internal LDO, VCC UVLO, and Bias Input for details). In these cases, PWM is still maintained, but the frequency of operation is folded back (reduced) to maintain proper regulation.