MP8757GL-P

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MP8757GL-P Application Field and Working Principle

Introduction: The MP8757GL-P is a high-performance DC-DC converter that enables efficient power conversion for a wide range of applications. It features a wide range of step-up and step-down voltage conversion with an output voltage range of 1.5V to 40V. The device is designed to offer high efficiency, low standby current, small solution size, and tight voltage regulation in a variety of conditions.

Application Field

The MP8757GL-P is suitable for use in a wide range of applications, including digital home appliances, automotive electronics, portable medical equipment, computer and notebook peripherals, or industrial devices.

The device can achieve up to 97% efficiency, which makes it one of the most efficient DC-DC high-voltage step-up converters, and significantly reduces system cost. Its small solution size makes it an ideal power supply choice for compact, space-constrained applications.

The MP8757GL-P also offers a wide input voltage range, from 3V to 25V, making it suitable for a wide range of power sources. The output voltage accuracy is regulated to within ±2%, allowing the device to establish tight regulation of output voltage in various applications.

Working Principle

The MP8757GL-P is a buck-boost switching regulator that combines a DC-DC converter circuit and a pulse-width modulation (PWM) control IC. The DC-DC converter circuit consists of a coil, a diode, and several capacitors. The PWM control IC provides the necessary logic signals to switch the components in the DC-DC converter circuit.

When an input voltage is applied to the MP8757GL-P, the PWM control IC turns on the power switch and charges the output filter capacitor with the voltage from the input voltage source. The PWM control IC then turns off the power switch and the output filter capacitor gradually discharges its stored energy, maintaining the output voltage.

The PWM control IC also modulates the duty cycle of the power switch and adjusts the inductor current to regulate the output voltage. The output voltage is also monitored by a feedback voltage divider, which is then compared with the set value. If the output voltage exceeds the set value, the duty cycle is reduced and the output voltage is brought back to the set value. This process is repeated in a continuous loop to maintain precise voltage regulation.

Conclusion

In conclusion, the MP8757GL-P is a high-performance DC-DC converter suitable for a wide range of applications. It features high efficiency and efficiency, small solution size, high output accuracy, and wide input and output voltage ranges. The MP8757GL-P is able to regulate voltage under high-load and high-frequency conditions, making it an ideal choice for power-generation and power-consumption systems.

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