With the continuous development of the switch mode power supply market, various types of chips are also emerging one after another. So, do you know which models of switching power supply chips are most commonly used? This article will provide a detailed introduction from four aspects.

1. Overview of Common Switching Power Supply Chips

A switching power supply chip is a circuit that combines dynamic electronic components (usually field-effect transistors or bipolar transistors) with static electronic components (usually diodes and resistors). It can convert DC power sources into output circuits with different voltages, currents, and powers. Switching power supply chips have advantages such as small size, high efficiency, controllability, and good stability. The commonly used switch mode power supply chips in the current market include LTC1759, IR2153, UCC3895, etc.

2. Comparison of Common Switching Power Supply Chip Parameters

Chip parameters are important indicators for measuring chip quality. The following is a comparison of common switch mode power supply chip parameters:

Working voltage range: LTC1759 has a wide working voltage range (3V-25V), IR2153 has a maximum input voltage between 12V-20V, and UCC3895 has a maximum input voltage of 20V.

Output power: The output power of LTC1759 is as high as 80W, the maximum output power of IR2153 is about 60W, and the maximum output power of UCC3895 is 45W.

Switching frequency: LTC1759 has a switching frequency of up to 600kHz, IR2153 has a switching frequency of around 40kHz, and UCC3895 has a switching frequency of around 200kHz.

In summary, from a parameter perspective, LTC1759 is the most advantageous switching power supply chip.

3. Application fields of commonly used switching power supply chips

Switching power supply chips are widely used in various electronic devices. Taking LTC1759 chip as an example, it can be applied in multiple fields such as laptops, mobile phones, digital cameras, PDAs, audio, video devices, etc. The IR2153 chip is mainly used in lighting, television, and computer monitor backlighting. The UCC3895 chip is mainly used in battery chargers and DC/AC converters.

4. Price comparison of commonly used switching power supply chips

The price of chips is a key concern for many buyers. The following is a comparison of common switch mode power supply chip prices in the market:

LTC1759 Price: Approximately 30 RMB/piece

IR2153 Price: Approximately 15 RMB/piece

UCC3895 Price: Approximately 10 RMB/piece

Conclusion

In summary, through an overview, parameter comparison, application areas, and price comparison of commonly used switching power supply chips, it can be concluded that LTC1759 is the most advantageous switching power supply chip. However, when selecting chips, it is also necessary to choose according to specific application scenarios and needs.