MP9473GL-P

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DC-DC switching voltage regulators are an important component of electrically powered systems, as they convert one DC voltage to another, while efficiently regulating and conditioning input voltages. The MP9473GL-P is a state-of-the-art DC-DC switching regulator designed for modern systems, as it offers great performance, high power efficiency, and excellent reliability.

Application Field

The MP9473GL-P is primarily designed for high-end desktop and notebook computer applications. It provides high levels of power efficiency and low power dissipation when operating with a load of 0-150 watts. Mouse, keyboard, and external storage devices can be powered by this regulator, and its power management system can also be used to provide 12V power to graphics cards and other high-performance systems. Additionally, this voltage regulator is suitable for use with industrial laptops and embedded systems.

Working Principle

The MP9473GL-P is a switch mode voltage regulator, meaning it uses electronic switches and capacitors to transfer power between input and output stages with minimal power loss. The internal switch is turned on by the control circuit, which then allows energy to be drawn from the input source and stored in the output storage capacitor. When the switch is turned off the stored energy is then released to the output. This process is then repeated as often as necessary, and maintains a stable output voltage even as the input voltage changes.

The first stage of the regulator uses an analog preregulator to provide a stable output to the pulse width modulation control stage. Then, an oscillator drives the internal switch, thereby allowing the transformer to transfer power between input and output stages. During the off-time of the switch, synchronous rectifiers are turned on to convert the discharged floating capacitors to a regulated output voltage.

The MP9473GL-P also offers various protections, such as over-voltage, over-current, and short-circuit protection. This ensures that the system is adequately protected against power spikes and current overloads, which helps to increase reliability and safety.

Conclusion

The MP9473GL-P is an excellent DC-DC switching voltage regulator that is primarily intended for high-end desktop and notebook computer applications. It handles power requirements of up to 150 watts, is capable of providing power to graphics cards and industrial laptops, and offers increased protection against current overloads. Finally, its high efficiency, low power dissipation, and excellent reliability make it an ideal choice for systems that demand maximum performance.

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