The MP4581 is a high-efficiency, synchronous step-down converter with integrated power MOSFETs. It provides 0.8A of output current (IOUT) in a buck topology from an input power supply of up to 100V.
The MP4581 features constant-on-time (COT) control, which provides fast transient response and facilitates loop stabilization. The configurable operation frequency can be set between 100kHz to 1MHz via an external resistor.
The MP4581 supports high-efficiency pulse-skip mode (PSM) while operating under light-load conditions. The valley current limit circuits protect against overload and short-circuit conditions.
The MP4581 is available in a SOIC-8EP package.
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The EV4581 Evaluation Board is designed to demonstrate the capabilities of MPS’ MP4581. The MP4581 is a high efficiency synchronous step-down converter with integrated high-side and low-side MOSFETs. It provides 0.8A output in buck topology from up to 100V input power supply.
MP4581 supports high efficiency pulse-skipmode (PSM) in light load condition. Valley current limit circuits protect against overload and short circuit conditions.
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