宋元浩

MP1584EN (tested)

Overview

Parameters:
3-28V input (industrial 24V should be considered carefully)
with built-in short-circuit protection, short-circuit current threshold 4.87A,
maximum output current 3A (actually measured around 2.2A)

Schematic diagram:
refer to MPS DCDC Design Assistant

PCB Layout:
refer to MPS DCDC Design Basics (specific See the detailed description of the schematic diagram)
DCDC basics: PCB layout and precautions

Test:
measured input 26.3V, output 5V3A, loaded for five minutes, temperature rise around 35°C.
SW output waveform fitting data manual

refers to the following author's blog:
MP1584 step-down core DC-DC design summary.

This module only optimizes wiring and uses acrylic as an isolation layer to solve some surge problems caused by hand contact.

Blog: Some information about this chip discussion of issues

Design Files

Capture.PNG

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