MP4458DQT-LF-Z

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The MP4458DQT-LF-Z is part of a family of DC DC switching regulators. This integrated device offers high efficiency under light to heavy load conditions. DC DC switching regulators are commonly used to step-up, step-down, or invert the input DC voltage. It can also be used to provide power supply isolation, power conversion between low voltage and high voltage, adjustable voltage, and battery charging.

The performance of the MP4458DQT-LF-Z makes it an excellent choice for a wide variety of applications. These applications include automotive, robotics, industrial controls, consumer electronics, medical equipment, power supplies, and communications.

The MP4458DQT-LF-Z is a dual output, synchronous buck regulator with two integrated, independent low-side MOSFETs. It features a wide input voltage range from 6.2 V to 36 V and adjustable output voltage from 0.8 V to 12 V. This device also provides an integrated under-voltage detection circuit to display a low voltage warning signal. With an adjustable switching frequency between 200 kHz and 2 MHz, it can be used in an optimal operation range without generating unwanted noise.

The MP4458DQT-LF-Z is designed with a low ripple, low noise, and low power consumption design. It also offers over-voltage and over-temperature protection. Other features include input under-voltage lockout, over-current protection, power-good signal, adjustable current limit, and fast transient response. All of these features make it an ideal choice for a variety of DC DC switching applications.

The working principle of the MP4458DQT-LF-Z is based on the flyback topology. The internal power MOSFETs provide high energy conversion efficiency and low on-resistances. Power is converted from DC to AC and then back to DC using a low-noise inductor coil, while operating at a constant frequency. The inductor provides the output voltage with a low ripple and the internal power MOSFETs makes it possible to achieve a high efficiency.

The MP4458DQT-LF-Z is a cost-effective, low-noise, and high efficiency solution for many DC DC switching applications. With its wide input voltage range, adjustable output voltage, adjustable switching frequency, and integrated features, it offers a great choice for designing efficient and reliable power solutions.

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