MPSMP1584EN Buck Regulator

Overview

MP1584EN-LF-P is a monolithic step-down switching regulator from Monolithic Power Systems. It is used to convert a higher DC input voltage to a lower regulated output with high efficiency, making it suitable for compact power supplies on embedded boards and subsystems. The -LF-P suffix indicates a lead-free package option, and this part has been flagged NRFND with MP2338 listed as the replacement.

Why Choose This Part

This part is attractive when you need a compact, efficient buck regulator rather than a linear regulator. It is commonly used in low-cost power stages because it can reduce heat and simplify thermal design compared with dissipative conversion. For new designs, the vendor-recommended replacement is MP2338, so engineering teams should evaluate that part for continuity and availability.

Applications

Getting Started

For design-in, start from the MP1584EN datasheet and the recommended application circuit, then verify the inductor, catch diode, feedback network, compensation, and layout against your exact input and output requirements. A bench prototype is usually easiest on a small power-module style breakout or on the target PCB with a controlled load and a current-limited supply. If you are migrating an existing design, compare the MP2338 reference circuit, pinout, and transient performance before committing to a re-spin.

MP1584EN Family

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