
Description:
The XL4015 5A DC-DC Step-Down Module is a versatile, high-efficiency buck converter that can regulate voltage down from a higher DC input to a stable, adjustable output. It supports constant current (CC) and constant voltage (CV) modes, making it suited for LED driving, lithium battery charging, bench power supplies, and general electronics regulation.
Specifications:
| Input Voltage | 4 – 38 V DC |
| Adjustable Output Voltage | 1.25 – 36 V DC |
| Max Output Current | 5 A (recommended under ~4.5 A) |
| Efficiency | Up to 96 % |
| Switching Frequency | 180 kHz |
| Protection | Thermal shutdown, overcurrent, short circuit limit |
| Recommended Max Power | ~75 W with heatsink |
| Operating Temperature | –40 °C to +85 °C |
| Dropout (Min Headroom) | ~0.3 V |
Features:
- Input range: 4 – 38 V DC
- Output voltage: 1.25 – 36 V, adjustable via potentiometer
- Maximum output current: 5 A (recommended usage under ~4.5 A)
- Efficiency: Up to 96 % under optimal conditions
- Fixed switching frequency: 180 kHz
- Protection features: Thermal shutdown, overcurrent limit, short circuit protection
- Heatsink option: Recommended when operating above ~50 W load
- Dropout / headroom: ~0.3 V typical
Applications:
- LED / high-power LED constant current driving
- Lithium / Li-ion battery charging under CC/CV modes
- Bench / variable power supply for electronics
- Embedded systems, robotics, microcontroller projects
- Voltage regulation for sensors, modules, etc.
Usage Tips:
- Always adjust the output voltage (no-load) before connecting to your load.
- Use the current-limit knob to set safe current threshold when used as current source.
- For high-power use (>50 W), mount heatsink and ensure good airflow.
- Wiring length should be minimized to avoid voltage drop and noise.
- Polarity must be correct — module typically has no reverse polarity protection.
- Use capacitors / filtering if load is sensitive to ripple.
Package Included:
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1 × XL4015 DC-DC Step-Down Module