The XL4015 5A DC-DC Step Down Adjustable Buck Converter is a versatile and efficient voltage regulator module designed for applications requiring reliable power delivery with adjustable output. It uses the XL4015 chip to convert higher DC input voltages to a lower output voltage, maintaining stability and efficiency.
- Wide Input Voltage Range: 4V to 38V DC.
- Adjustable Output Voltage: 1.25V to 36V DC.
- High Output Current: Up to 5A with proper cooling.
- High Efficiency: Up to 96%.
- Integrated Thermal Protection: Prevents overheating.
- Overcurrent Protection: Ensures safe operation under load.
- Short Circuit Protection: Prevents damage during faults.
- Onboard Trimmer Potentiometer: For easy output voltage adjustment.
- Compact Size: Ideal for embedded projects.
- Power supply for DIY electronics projects.
- Battery charging circuits (e.g., Li-ion, NiMH, Lead-Acid).
- LED drivers and lighting systems.
- Voltage regulation in automotive systems.
- Step-down voltage conversion for Raspberry Pi, Arduino, and other microcontrollers.
| Specification | Details |
|---|---|
| Chipset | XL4015 |
| Input Voltage Range | 4V - 38V DC |
| Output Voltage Range | 1.25V - 36V DC |
| Output Current | Up to 5A (requires heat sink for max load) |
| Efficiency | Up to 96% |
| Switching Frequency | 180kHz |
| Operating Temperature | -40°C to +85°C |
| Dimensions | 54mm x 23mm x 15mm |
| Pin | Description |
|---|---|
VIN+ |
Positive Input Voltage |
VIN- |
Negative Input Voltage (GND) |
VOUT+ |
Positive Output Voltage |
VOUT- |
Negative Output Voltage (GND) |
- Input Voltage: Connect the input voltage (4V to 38V DC) to the
VIN+andVIN-pins. - Output Voltage: Use the onboard potentiometer to adjust the output voltage to the desired level.
- Load Connection: Connect the load to the
VOUT+andVOUT-pins. - Cooling: For high current applications (above 3A), attach a heat sink to ensure proper cooling.
- Protection: Verify input polarity before powering the module to prevent damage.
- Ensure the input voltage does not exceed 38V to avoid damaging the module.
- Always check for proper heat dissipation when operating at high current.
- Verify connections to prevent short circuits or incorrect polarity.
Adjust the output voltage to match the charging voltage of your battery (e.g., 4.2V for a single Li-ion cell). Use additional circuitry for current regulation if necessary.
Supply a steady voltage (e.g., 5V or 3.3V) for Raspberry Pi, Arduino, or other embedded systems.
Drive LEDs with a constant and adjustable voltage. Ensure to calculate proper current-limiting resistors.
This project is open-source and available under the MIT License.
Feel free to contribute by opening issues or submitting pull requests!