What is the function of a low dropout Schottky diode circuit?

Low voltage drop Schottky diodes generally play an auxiliary role in circuits.

In low dropout Schottky diodes, the general characteristics are a decrease in conduction voltage and extremely fast reverse recovery.

If these two voltages are used for signal processing, the circuit is such that P_DVCC is loaded with a 10K load. When the voltage of P_DVCC is higher than that of DVCC, the current flows from P_DVCC to DVCC

It was cut off.

This type of circuit is generally used in charging circuits.