The advantages and design considerations of dcdc power modules

dcdc power moduleIt is a power supply that can be directly mounted on a printed circuit board. Its characteristics are that it can be an application-specific integrated circuit (ASIC), digital signal processor (DSP), microprocessor, memory, field programmable gate array (FPGA), and Other digital or analog loads provide power. Generally speaking, this type of module is called a point-of-load (POL) power supply system or a point-of-use power supply system (PUPS). Due to the many advantages of the modular structure, various modules are widely used in high-performance telecommunication, network connection and data communication systems.

The main advantages of dcdc module power supply are:

1. It has low power consumption and high efficiency.

2. The voltage stabilization range is wide and the voltage stabilization effect is good.

3. It can achieve miniaturization and light weight.

Several elements that need to be paid attention to when designing dcdc power modules:

1. Pay attention to the current. When selecting the device, you must pay attention to the current, and what current value can be eaten. At this point, when PCB wiring, where large currents are consumed, the lines should be thick.

2. The analog ground and digital ground must be separated and connected at a certain point. Do not connect the analog ground and digital ground casually, as this will cause some interference.

3. Pay attention to heat dissipation. When the dcdc power module is working, it will generate a lot of heat, so the heat dissipation work must be done well.

4. Regarding the ripple problem, the capacitance value must be calculated well to reduce the ripple.

5. Arrange a protection circuit in front of the dcdc power module to prevent accidents and protect the chip.