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MP1584EN (DC-DC adjustable buck module)

Overview

The MP1584EN is a high-frequency step-down switching regulator with an integrated internal high-side high-voltage power MOSFET. It provides a 3A output with current mode control for fast loop response and easy compensation.

The wide 4.5V to 28V input range is suitable for a variety of step-down applications, including those in automotive input environments. The 100uA operating quiescent current allows use in battery-powered applications.

High power conversion efficiency is achieved over a wide load range by scaling down the switching frequency under light load conditions to reduce switching and gate drive losses.
Frequency foldback helps prevent runaway inductor current during startup and thermal shutdown

By switching at 1.5MHz, the MP1584 is able to prevent EMI (electromagnetic interference) noise problems, such as those found in AM radio and ADSL applications.

Fixed output: 3.3V/5V/9V/12V

Input voltage: 4.5V~28V
Output voltage: 0.8V~20V
Output current: 3A (maximum)
Conversion efficiency: 96% (maximum)
Output ripple: <30mV
Switching frequency: 1.5MHz (maximum), typical 1MHz
Operating temperature: - 45℃~+85℃
Size: 21mm * 16mm (length * width)

2022/8/3 update: Add the most powerful interactive HTML BOM on the surface

Update on 2022/8/15: Modified the potentiometer value to 200K, updated the project, and verified that the actual product is normal

Design Files

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Update:2025-06-24 01:47:12

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