Power Management Integrated Circuits is a chip that is responsible for the conversion, distribution, detection and other power management of electrical energy in the electronic equipment system. It is mainly responsible for identifying the power supply amplitude of the CPU, generating the corresponding short-moment wave, and promoting the power of the subsequent circuit Output. The power management chip is responsible for the conversion, distribution, detection and other power management of electric energy in the electronic equipment system. The power management chip is indispensable to the electronic system, and its performance has a direct impact on the performance of the whole machine.

The scope of power management is relatively wide, including separate electric energy conversion (mainly DC to DC, that is, DC/DC), separate electric energy distribution and detection, and a system that combines electric energy conversion and electric energy management. Correspondingly, the classification of power management chips also includes these aspects, such as linear power chips, voltage reference chips, switching power supply chips, LCD drive chips, LED drive chips, voltage detection chips, battery charging management chips, etc.