What is VCC pin in the ADP2441?
VCC pin is the output of the internal low dropout regulator. Internal regulator
supplies power for the internal controller and driver circuitry. A 1 µF
ceramic capacitor between VCC and AGND and a 1 µF ceramic capacitor between VCC
and PGND are required respectively for stable operation. A user is not advised
to use this pin as a supply pin and connect to any load on it.