The VCC pin is the output of the internal LDO used to supply the control circuits of the LM53625/35-Q1. This output requires a 4.7-µF, 10-V ceramic capacitor connected from VCC to GND for proper operation. X7R type is recommended for automotive applications. In general this output must not be loaded with any external circuitry. However, it can be used to supply a logic level to the FPWM input or for the pullup resistor used with the RESET output. The nominal output of the LDO is 3.15 V.