Introduction to DC/DC converters

The DC/DC converter is a switching power supply chip, which refers to the use of the energy storage characteristics of capacitors and inductors to perform high-frequency switching through controllable switches (MOSFETs, etc.) to store the input electrical energy in the capacitor (sense). When disconnected, the electrical energy is then released to the load to provide energy. The output power or voltage capability is related to the duty cycle (the ratio of the on-time of the switch to the cycle of the entire switch). Switching power supplies can be used for step-up and step-down.