Description:
This DC-DC switching buck converter is capable of driving a 5A load with excellent line and load regulation. The main switching component is XL4015, an adjustable output version switching regulator. It is an efficient switching regulator and the output efficiency is significantly higher in comparison with the popular boost regulators. At higher input voltages, the regulator operates at a switching frequency of 180kHz, thus allowing the overall board size to be smaller and space-saving. It is a high-power switching module with a toroidal ring inductor.
Pin Description of XL4015 Power module Board
| Pin Name | Description |
| IN+ | Positive input (Unregulated or Regulated) |
| IN- | Negative input (Ground) |
| OUT+ | Positive Output (Regulated) |
| OUT- | Negative Output (Ground) |
The pinout can be easily seen in the Board Legend.
Features and Specifications
- Input voltage: 4 – 38V
- Output voltage: 1.25 – 36V (adjustable)
- Output current: Maximum output current 5A
- Note: The higher the voltage, the load current increases. Try to use it within 4.5A.
- Output current: 0-5A, it is recommended to use within 4.5A.
- Output power: It is recommended to use within 75W, please add a heat sink if it exceeds 50W.
- Working temperature: -40~+85 degrees
- Working frequency: 180KHz
- Conversion efficiency: up to 96% (efficiency is related to input, output voltage, current, and pressure difference)
- Load regulation rate: S ( I ) ≤ 0.8%
- Voltage adjustment rate: S ( u ) ≤ 0.8%
- Power indicator: Yes
- Short circuit protection: Yes (limited current 8A)
- Over-temperature protection: Yes (automatically shut down the output after over-temperature)
- Input reverse connection protection: None, (if necessary, please insert a high current diode in series in the input)
- Installation: 2 Ke 3mm screws
- Connection method: welding, V-IN is input, V-OUT is output
- Dimension: 54*23*18 mm (L*W*H)
High-Power DC-DC Buck Converter for Battery Charging, LED Driving, and More
This adjustable DC-DC step-down module offers efficient and reliable voltage conversion for a wide range of applications. Based on the XL4015E1 chip, it supports a high output current of 5A, making it ideal for demanding projects.
Key Applications:
- Lithium-ion Battery Charging: Safely and efficiently charge your Li-ion batteries with adjustable constant current (CC) settings.
- High-Power LED Driver: Drive high-power LEDs with precise current regulation, ensuring optimal performance and longevity.
- DIY Adjustable Power Supply: Create a customized power supply for your electronics projects with adjustable output voltage and current.
- Automotive Power Conversion: Step down the 24V car power supply to lower voltages for powering various devices.
- Industrial Equipment: Provide stable and regulated power for industrial equipment operating at different voltage levels.
- Versatile Voltage Conversion: Convert various input voltages to lower output voltages, such as:
- 12V to 3.3V
- 12V to 5V
- 24V to 5V
- 24V to 12V
- 36V to 24V
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