The application scope of the power management chip

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Application range

The application scope of the power management chip is very extensive. The development of the power management chip is of great significance for improving the performance of the whole machine. The selection of the power management chip is directly related to the system requirements, and the development of the digital power management chip needs to overcome the cost.

In today's world, people's lives are inseparable from electronic devices. The power management chip is responsible for the conversion, distribution, detection, and other power management of the electrical energy in the electronic device system. The power management chip is indispensable for the electronic system, and its performance has a direct impact on the performance of the whole machine.

Improve performance

All electronic devices have power, but different systems have different power requirements. In order to achieve the best performance of the electronic system, you need to choose the most suitable power management method.

First, the core of the electronic device is a semiconductor chip. In order to increase the density of the circuit, the feature size of the chip is always moving toward a decreasing trend, and the electric field strength linearly increases with the decrease of the distance. If the power supply voltage is still 5V, the generated electric field strength is enough to break the chip. Therefore, in this way, the requirements of the electronic system for the power supply voltage have changed, that is, different step-down power supplies are required. In order to maintain high efficiency while bucking, a step-down switching power supply is generally used.

At the same time, many electronic systems also require a power supply higher than the supply voltage. For example, in a battery-powered device, a backlight power supply for driving a liquid crystal display, an ordinary white LED driver, etc., all need to boost the system power supply, which requires the use of liters. Profiled switching power supply.

In addition, modern electronic systems are developing in the direction of high speed, high gain, and high reliability. The small interference on the power supply has an impact on the performance of electronic devices. This requires power supplies that have advantages in terms of noise, ripple, etc. The power supply is regulated, filtered, etc., which requires a linear power supply.

The different power management methods described above can be realized by a corresponding power chip combined with few peripheral components. It can be seen that the development of power management chips is an indispensable means to improve the performance of the whole machine.