LX7186AILU

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LX7186AILU is a high-efficiency, high-current DC-DC synchronous buck switching regulator, mainly used for computer motherboards, CPU core power, graphics card power supply and other occasions. This switching regulator has a wide range of output voltages, and its main feature is efficiency. This power transistor is a variable frequency switching regulator with Synchronous Rectification and Maximum Duty Cycle Control Circuit.

Introduction

Synchronous buck-type regulators are often used in many applications because of their high efficiency, small size and low cost. This regulator has a wide range of output voltages and a wide input voltage range, which makes it suitable for many applications, such as portable computers and power supply systems. The output current capability is up to 4A, which can meet the demanding needs of most designs. This regulator uses Synchronous Rectification, which has a higher efficiency than conventional voltage regulators, and also features a Maximum Duty Cycle Control Circuit, which can reduce EMI and also improve efficiency. This regulator also features an adjustable soft-start, which can provide current ramp up control for each output, providing for a better system design.

Features

• Wide input voltage range: 2.5V to 25V
• Output current up to 4A
• Efficiency up to 92%
• Maximum Duty Cycle Control Circuit
• Adjustable soft-start

Applications

• Computer motherboards
• CPU core power
• Graphics card power supply
• Other power supply designs

Working Principle

This synchronous buck switching regulator uses Synchronous Rectification and Maximum Duty Cycle Control Circuit. Synchronous Rectification allows the internal FETs to turn on and off in synchronism with the buck inductor, thus eliminating the need for an output Schottky diode. This reduces the power losses due to the Schottky diode, thus improving efficiency. The Maximum Duty Cycle Control Circuit reduces switching losses and improves efficiency by limiting the maximum duty cycle. The regulator also features an adjustable soft-start circuit, which can provide current ramp up control for each output, ensuring a smoother startup.

Conclusion

The LX7186AILU is a high-efficiency, high-current DC-DC synchronous buck switching regulator that is perfect for many applications, including computer motherboards, CPU core power, graphics card power supply and other power supply designs. The regulator employs Synchronous Rectification and a Maximum Duty Cycle Control Circuit for improved efficiency, and also features an adjustable soft-start circuit for current ramp up control. This regulator is a great choice for designers looking for a high-efficiency and cost-effective power solution.

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