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MP1584EN-LF-Z

MPSMP1584EN-LF-Z

Monolithic Power Systems (MPS)
Switching Voltage Regulators 3A 1.5MHz 28V Nonsync Buck
NRND2,690 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The MP1584EN-LF-Z is a compact, adjustable step-down (buck) regulator rated for up to 3 A output, intended for space-constrained designs and hobbyist modules. It accepts a wide input range (4.5 V to 28 V) and can regulate outputs from 0.8 V up to 25 V, making it flexible for many single-output power rails. Its small package and adjustable output make it popular for custom boards and through-hole/breakout module implementations.

Why Choose This Part

Offers a compact, adjustable single-output solution with a wide input voltage range and up to 3 A output, making it versatile across many designs. The small package and common availability on breakout modules shorten development time for prototypes and hobby projects. The adjustable output (down to 0.8 V) lets you generate nonstandard rails without changing the IC.

Applications

Point-of-load power for embedded boards
Provide 3.3 V or 5 V rails from a higher-voltage bus for microcontrollers, sensors, and peripherals.
Battery-powered devices
Step down Li-ion or multi-cell battery voltages to stable system rails while minimizing board area.
Bench power modules and hobbyist regulator boards
Used on widely available adjustable modules for quick prototyping and lab supplies.
Powering motor controllers and small actuators
Supply the logic or driver power rail where currents stay within the 3 A continuous limit.
LED and lighting drivers (low-to-moderate current)
Drive LED arrays or strips when configured for a constant-voltage output within the device limits.

Getting Started

Start with the manufacturer's datasheet and reference layout to select the correct inductor, input/output capacitors, and feedback resistors. Many suppliers sell MP1584EN-based breakout/evaluation modules that simplify bench testing; when testing on a custom PCB, pay close attention to thermal vias and copper for heat dissipation. Use a current-limited bench supply, a multimeter, and an oscilloscope to verify output regulation and switching waveform during bring-up.

Also Consider

MP2307DN-LF-Z Monolithic Power Systems - Another compact 3 A buck from MPS with similar use cases and small SOT packages.
LM2596S-ADJ/NOPB TITexas Instruments - A widely used 3 A adjustable step-down regulator in a through-hole/TO-263 style package for easier thermal handling on hobby and industrial boards.
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