Power Management Integrated Circuits (Power Management Integrated Circuits) is a chip that is responsible for the transformation, distribution, detection and other power management duties in an electronic device system. It is mainly responsible for identifying the CPU power supply amplitude, generating the corresponding short moment wave, and promoting the power output of the back-end circuit. The number on the power chip represents the origin, production date, and internal quality tracking code of the chip. It doesn't matter much for chip applications.
The number on the power chip represents the origin, production date, and internal quality tracking code of the chip. It doesn't matter much for chip applications.
Integrated circuits have their model specifications, which indicate what company's product the integrated circuit is, and also indicate the model of the integrated circuit. For example, LA7805, LA is a product of Sanyo Company, 7805 is a stable voltage 5V power supply chip. T7809 is Toshiba's product, 7809 is a stable 9V power supply chip.