




XL4016 Step Down Buck Converter (300W 10A Power Supply Module)
- High-power DC-DC Step Down (Buck) Converter Module featuring the XL4016 IC.
- Wide input voltage range: 8V to 40VDC (Operating range varies).
- Adjustable output voltage from 1.25V to 32VDC via an onboard potentiometer.
- High maximum power handling of 300W and output current up to 10A (8A continuous recommended).
- Features Constant Current (CC) and Constant Voltage (CV) regulation (on most 300W variants).
- High efficiency up to 96% and fixed switching frequency of 180 kHz.
Product Details
XL4016 DC-DC Step Down Buck Converter (300W 10A Adjustable CC/CV)
The XL4016 Step Down Buck Converter module is a robust, high-performance solution for power regulation, designed to convert a higher DC input voltage into a lower, highly stable DC output voltage. Powered by the efficient XL4016 PWM chip, this module can handle substantial loads, boasting a maximum instantaneous output of 300W and a current capacity of up to 10A (8A continuous use is recommended with proper cooling).
This module is not just a voltage regulator; it's a versatile power supply featuring both Constant Voltage (CV) and Constant Current (CC) modes, adjustable via separate multi-turn potentiometers. This CC/CV capability makes it an ideal choice for complex tasks like acting as a high-power LED driver, precisely charging various battery chemistries (Li-ion, Lead-Acid), or serving as the core component of a laboratory power supply. The wide input range of 8V to 40V ensures flexibility across many different power sources, including vehicle batteries and existing DC systems.
🔧 Key Features
- Converter IC: XL4016 PWM Buck (Step-Down) Controller.
- Regulation Modes: Constant Current (CC) and Constant Voltage (CV) (Dual adjustment).
- Input Voltage Range (V IN ): 8V to 40VDC.
- Adjustable Output Range (V OUT ): 1.25V to 32VDC.
- Max Output Capacity: 10A peak / 300W max.
- Protection: Built-in Thermal Shutdown and Short Circuit Protection (Short Limit at 14A).
💡 Applications
- High-power LED Lighting Driver (Constant Current mode).
- Battery Charging for 12V, 24V Li-ion or Lead-Acid packs.
- Vehicle-mounted laptop power supply (Step down 24V to 19V).
- Adjustable Lab Power Supply source.
⚙️ Technical Specifications Summary
| Converter IC | XL4016 |
| Input Voltage Range | 8V to 40VDC |
| Adjustable Output Voltage | 1.25V to 32VDC |
| Max Output Current | 10A (8A Continuous Recommended) |
| Max Output Power | 300W |
| Switching Frequency | 180 kHz |
| Max Efficiency | Up to 96% |
| Operating Temperature | −40 ∘ C to +85 ∘ C (Module) |
📦 Package Includes
- 1 × XL4016 Step Down Buck Converter Module
Specifications
- TypeDC-DC Step Down (Buck) Converter Module
- Operating Voltage8V to 40VDC (Input)
- Temperature Range-40°C – +85°C
- Output TypeRegulated DC Voltage / Constant Current (CV/CC)
- Sampling RateNot Applicable
- InterfaceHardwired Terminals









