The XL4015 Buck Converter Module is a DC-DC step-down regulator designed for higher current applications compared to the LM2596. Based on the XL4015 switching regulator IC, it provides a stable, adjustable DC output with up to 5A continuous current handling, making it ideal for IoT, robotics, battery charging, and embedded power research projects.

This module is especially valued in research for its high efficiency (up to 96%), integrated Constant Current (CC) and Constant Voltage (CV) control, and higher load capacity, making it suitable for both regulated power supply design and Li-ion battery charging systems.

Key specifications:

• Input Voltage: 4V – 38V DC

• Output Voltage: 1.25V – 36V DC (adjustable via potentiometer)

• Output Current (continuous): Up to 4A reliably (5A with proper heat sinking)

• Output Power: ~75W (with cooling, otherwise ~50W)

• Efficiency: Up to 96% (depends on input-output differential and load)

• Switching Frequency: ~180 kHz

• Load Regulation: ±0.5%

• Voltage Ripple: <30 mV typical

• Modes: CC (current regulation), CV (voltage regulation)

• Protections (module dependent): Overcurrent, thermal shutdown, short-circuit protection

• Operating Temperature: -40°C to +85°C

Research & application relevance:

• IoT & Embedded Projects: Steps down 12V/24V sources to regulated 5V/3.3V for ESP32, NodeMCU, Arduino.

• Robotics & Automation: High-current supply for DC motors, motor drivers, and controllers.

• Battery Charging: Supports CC/CV charging of Li-ion packs (with BMS integration).

• Energy Research: Enables experiments with efficiency optimization, load testing, and regulated charging systems.

• Lab Power Supplies: Can serve as a compact, adjustable bench power source.

The XL4015 is valuable in research because it offers higher current handling, CC/CV support, and improved efficiency, making it an upgrade over basic buck converters like LM2596.