What are the power management chips?

Power Management Integrated Circuit (PMIC) is an integrated circuit used to manage and control the power supply of electronic equipment. They usually perform several key functions, including voltage conversion, battery charging control, power serialization, LED driving and system power monitoring. The following are some common types of power management chips:

1. AC -DC conversion chip: It is responsible for converting AC to DC, such as the chip used in the aforementioned power adapter or power module.

2.DC-DC converter chip: including various converters, such as buck converter, boost converter and buck-boost converter chip.

3. Battery management chips: including chips that provide charging control, battery protection and power detection for lithium batteries and other rechargeable batteries.

4.LED driver chip: used to control LED lights and light sources in the display screen, including constant current output control and dimming functions.

5.LDO (low dropout linear regulator): used to provide stable low noise voltage output with low dropout requirements.

6. Switching regulator: Using switching technology to achieve efficient voltage conversion is usually more efficient than linear regulator.

7. Power monitoring and protection chip: provides voltage, current and temperature detection and alarm functions to ensure the safe operation of the system.

8. System Power Management Unit (PMU): It integrates multiple power management functions on one chip for power management of complex systems such as smart phones and tablet computers.