EmbeddedRelated.com
    Parts    MPS MP1584 / MP2307 Family    MP1584EN    MP1584EN
MP1584EN

MP1584EN

Monolithic Power Systems
Popular compact 3 A buck regulator alternative with adjustable output in a different package and topology.
NRND6,336 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The MP1584EN is a compact step-down (buck) switching regulator with an adjustable output range. Distributor specs list an input range of 4.5 V to 28 V and an adjustable output from 0.8 V up to 25 V with a 3 A output capability. It is commonly used where a small, cost-effective point-of-load regulator is required.

Why Choose This Part

Practical engineering reasons to choose this part include a wide input range and an adjustable output span that cover many common rails, plus a 3 A rated output for moderate loads. The device is compact and typically requires few external components, enabling a small PCB footprint and low BOM cost for point-of-load conversion.

Applications

Point-of-load regulation for microcontrollers and SoCs
Provide a regulated intermediate rail (eg. 3.3 V or 1.8 V) from higher system voltages for processors and peripherals.
Battery-powered systems
Step down from single-cell or multi-cell battery packs to stable system voltages while preserving efficiency.
12 V automotive and industrial rails
Generate lower-voltage rails from 12 V or 24 V vehicle/industrial supplies when a compact regulator is needed.
Compact point-of-use power supplies
Small PCB area applications where a single-chip buck with adjustable output simplifies the BOM.

Key Specifications

Function Step-Down
Topology Buck
Output Type Adjustable
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width) Exposed Pad
Current - Output 3A
Number of Outputs 1
Output Configuration Positive
Frequency - Switching 100kHz ~ 1.5MHz
Operating Temperature -20degC ~ 85degC (TA)
Synchronous Rectifier No
Voltage - Input (Max) 28V
Voltage - Input (Min) 4.5V
Voltage - Output (Max) 25V
Supplier Device Package 8-SOICE
Voltage - Output (Min/Fixed) 0.8V

Getting Started

Start by downloading and following the manufacturer's datasheet application circuit and layout recommendations; correct inductor selection and low-ESR output capacitors are important for stable operation. For prototyping, many hobbyist modules or breakout boards exist based on this IC, but verify component values and thermal layout against the datasheet. Use a bench supply and oscilloscope to verify switching behavior and to check for thermal or stability issues under load.

Part of MPS MP1584 / MP2307 family » MP1584EN

MP1584EN Family

Part NumberDifferenceStock
MP1584EN-LF-P (Monolithic Power Systems (MPS)) LF-P 311

Also Consider

LM2596S-ADJ/NOPB TITexas Instruments - A widely used 3 A buck regulator in a larger package for simple, rugged 3 A conversions.
MP2307DN-LF-Z Monolithic Power Systems - Another compact 3 A synchronous buck from MPS often used on small regulator modules and compact PCBs.
TPS5430DDAR TITexas Instruments - A 3 A step-down regulator with a wide input range suitable for point-of-load applications.