9.1.2 Output Capacitor (Optional)

Due to the integrated body diode in the NMOS switch, a C_IN greater than C_L is highly recommended. A C_L greater than C_IN can cause V_OUT to exceed V_IN when the system supply is removed. This could result in current flow through the body diode from VOUT to VIN. A C_IN to C_L ratio of 10 to 1 is recommended for minimizing V_IN dip caused by inrush currents during start-up, however a 10 to 1 ratio for capacitance is not required for proper functionality of the device. A ratio smaller than 10 to 1 (such as 1 to 1) could cause slightly more V_IN dip upon turnon due to inrush currents. This can be mitigated by increasing the capacitance on the CT pin for a longer rise time (see Adjustable Rise Time).