XL6019 DC-DC Buck-Boost Converter Module – Support Documentation
The XL6019 is a versatile DC-DC converter module capable of both step-up (boost) and step-down (buck) voltage conversion. It is designed to provide a stable output voltage from a variable input voltage source, making it ideal for applications where the input voltage can fluctuate above and below the desired output voltage.
Key Features
- Input Voltage: 5V to 32V DC
- Output Voltage: 1.25V to 35V DC (adjustable)
- Output Current: Up to 5A (with adequate heat dissipation)
- Conversion Efficiency: Up to 94%
- Switching Frequency: 220 kHz
- Operating Temperature: -40°C to +85°C
- Dimensions: Approximately 50mm x 28mm x 13mm (L x W x H)
- Protection Features: Thermal shutdown, overcurrent protection, and built-in soft-start function
Pinout Description
| Pin Label | Description |
|---|---|
| IN+ | Positive input voltage (5V to 32V DC) |
| IN- | Ground (0V) for input voltage |
| OUT+ | Positive output voltage (1.25V to 35V DC, adjustable) |
| OUT- | Ground (0V) for output voltage |
| Potentiometer | Adjusts the output voltage; rotate clockwise to increase, counter-clockwise to decrease |
Setting Up the Module
- Connect Input Voltage: Connect the positive terminal of your DC power source to IN+ and the negative terminal to IN-.
- Connect Load: Connect your load to OUT+ and OUT- terminals, ensuring correct polarity.
- Adjust Output Voltage: Use a small screwdriver to turn the potentiometer. Monitor the output voltage with a multimeter connected to the output terminals.
- Ensure Proper Heat Dissipation: If drawing currents near 5A, attach a heatsink to the XL6019 chip and ensure adequate ventilation.
Applications
- Power supply for microcontrollers and embedded systems
- Battery-powered projects requiring regulated voltage
- DIY electronics and prototyping
- LED drivers and lighting projects
- Charging circuits for lithium-ion batteries (with appropriate charging control)
Troubleshooting
- No Output Voltage: Ensure input voltage is within the specified range and properly connected. Check for correct polarity.
- Output Voltage Not Adjustable: Verify that the potentiometer is functioning and not damaged. Ensure the load does not exceed the module’s current capacity.
- Module Overheating: If drawing currents near 5A, attach a heatsink to the XL6019 chip and ensure adequate ventilation.
- High Output Ripple: Add a low ESR capacitor (e.g., 220µF) at the output to stabilize the voltage and reduce noise.
Frequently Asked Questions
Can I use this module to increase voltage?
Yes, the XL6019 module can function as a step-up (boost) converter, increasing the input voltage to a higher output voltage within the specified range.
Is the output voltage stable under varying loads?
Yes, the module maintains a stable output voltage with a load regulation of ±0.5%, ensuring minimal voltage fluctuation under different load conditions.
Can I power the module with a 5V USB supply?
Yes, if your desired output voltage is within the module’s capabilities and the input current does not exceed the USB supply’s capacity. Ensure the input voltage is at least 1.5V higher than the desired output voltage for proper regulation.
Is the module suitable for charging batteries?
While the module can supply a regulated voltage, it lacks specific charging control features. For safe battery charging, use a dedicated charging controller in conjunction with this module.
Conclusion
The XL6019 DC-DC Buck-Boost Converter Module is a reliable and efficient solution for various electronic applications requiring voltage regulation. Its ability to both step up and step down voltage, along with its adjustable output and compact size, make it a valuable tool for hobbyists and professionals alike.