XH-M401 XL4016 DC-DC Step Down Buck Converter Module 8A

The XH-M401 DC-DC Step-Down Buck Converter Module is a high-power, high-efficiency voltage regulator board designed around the robust XL4016 buck regulator IC. Capable of stepping down input voltages from 4V to 40V DC, it delivers an adjustable output voltage range of 1.25V to 36V DC. With a massive peak output current capacity of up to 8A, this module is engineered to handle demanding power requirements while maintaining excellent voltage regulation and minimal ripple.

This step-down module is highly versatile and widely used in DIY lab bench power supplies, high-power LED drivers, battery charging circuits (including Lithium-Ion, LiFePO4, and Lead-Acid batteries), and automotive power systems. It is fully compatible with microcontrollers like Arduino, ESP32, and Raspberry Pi, allowing you to step down higher voltage battery packs to safe operating levels. Equipped with dual heavy-duty aluminum heatsinks, a high-quality toroidal inductor, and a multi-turn precision potentiometer, it ensures stable, long-term performance even under heavy loads.

Features:

• High-Power XL4016 IC: Features PWM modulation technology with a fixed 180 kHz switching frequency for high efficiency.
• Adjustable Output Voltage: Easily tune the output from 1.25V to 36V DC using the onboard multi-turn precision potentiometer.
• High Current Output: Delivers up to 8A peak current (5A continuous operation recommended without active fan cooling).
• Dual Heatsink Design: Independent aluminum heatsinks for the regulator IC and Schottky diode prevent thermal throttling.
• Excellent Conversion Efficiency: Achieves up to 94% efficiency, reducing heat dissipation and power loss.
• Robust Screw Terminals: Features heavy-duty input and output screw terminals for secure, solderless wire connections.

Package Includes:

1 x XH-M401 XL4016 DC-DC Step Down Buck Converter Module