The 8304 power supply chip is a kind of high performance regulating voltage regulator, which has the characteristics of overload protection and short circuit protection. It has 8 pins, where Vout is the output voltage pin, Vin is the input voltage pin, Gnd is the ground pin, EN is the enable pin, FB is the feedback pin, Cout is the output capacitance pin, Cin is the input capacitance pin, and NC is the unconnected pin. Among them, the EN pin is used to control the on-off state, the FB pin is used to control the output voltage stability, and the Cout\/Cin pin is used to connect the output\/input capacitor to improve the sensitivity and stability of the regulator.