9.2.1.2.3 Input Capacitor Selection

A ceramic capacitor with 2 × V_{IN MAX} or more voltage rating is recommended for the input capacitor. The DC-bias effect can reduce the effective capacitance by up to 80%, which needs to be considered in capacitance value selection. If the selected ceramic capacitors' voltage rating is less than 2 × V_{MAX BOOST}, an alternative way is to increase the number of ceramic capacitors. Capacitance recommendations for different boost switching frequencies are shown in Table 2.