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- DC-DC Step Down Module XL4016 9A
- DC Converters
Features:
- Dual Regulation Modes: Supports both Constant Voltage (CV) and Constant Current (CC) operation.
- High Output Power: Capable of delivering up to 300W output power.
- High Efficiency: Conversion efficiency up to 95% reduces power loss and heat generation.
- Wide Input Range: Accepts DC input voltages from 7V to 40V.
- Adjustable Output: Output voltage can be precisely adjusted from 1.2V to 35V.
- Current Limiting Function: Adjustable current control helps protect loads and batteries.
- Dual Aluminum Heatsinks: Enhanced thermal dissipation for high-power applications.
- Status Indicators: Onboard LEDs indicate charging and operating conditions.
- Industrial Grade Performance: Designed to operate from -40°C to +85°C.
- Easy Wiring: Heavy-duty screw terminals for secure input and output connections.
Specifications:
- Model: XL4016 Buck Converter Module
- Control Modes: Constant Voltage (CV), Constant Current (CC)
- Maximum Output Power: 300W
- Maximum Output Current: 9A (with adequate cooling)
- Recommended Continuous Current: 5A – 6A without active cooling
- Input Voltage Range: 7V – 40V DC
- Output Voltage Range: 1.2V – 35V DC
- Conversion Efficiency: Up to 95%
- Switching Frequency: 300kHz
- Operating Temperature: -40°C to +85°C
- Cooling Method: Dual Aluminum Heatsinks
Terminal Connections:

- IN+: Positive DC Input (7V – 40V)
- IN-: Negative DC Input (Ground)
- OUT+: Positive Regulated Output
- OUT-: Negative Output (Ground)
Adjustment Controls:

- CV Potentiometer: Adjusts output voltage. Turn clockwise to increase voltage and counterclockwise to decrease voltage.
- CC Potentiometer: Adjusts maximum output current. Turn clockwise to increase the current limit, and counterclockwise to decrease it.
Applications:
- Lithium-ion battery charging systems
- Lead-acid battery chargers
- High-power LED drivers
- Laboratory bench power supplies
- Solar power systems
- DIY electronics projects
- Industrial automation equipment
- Motor and controller power regulation
Important Notes:
- No Reverse Polarity Protection: Reversing the input polarity may permanently damage the module.
- Input voltage must always be higher than the desired output voltage.
- For continuous loads above 5A–6A, active cooling with a fan is strongly recommended.
- The module can reach its maximum 300W rating only under suitable voltage, current, and cooling conditions.
- Monitor heatsink temperature during high-power operation to prevent overheating.
How to Use:
- Connect the DC input source to the IN+ and IN- terminals.
- Connect the load or battery to the OUT+ and OUT- terminals.
- Adjust the CV potentiometer to set the desired output voltage.
- Adjust the CC potentiometer to set the desired current limit.
- Verify voltage and current settings using a multimeter before connecting sensitive loads.
- Install additional cooling if operating at high current levels for extended periods.
Features:
- Dual Regulation Modes: Supports both Constant Voltage (CV) and Constant Current (CC) operation.
- High Output Power: Capable of delivering up to 300W output power.
- High Efficiency: Conversion efficiency up to 95% reduces power loss and heat generation.
- Wide Input Range: Accepts DC input voltages from 7V to 40V.
- Adjustable Output: Output voltage can be precisely adjusted from 1.2V to 35V.
- Current Limiting Function: Adjustable current control helps protect loads and batteries.
- Dual Aluminum Heatsinks: Enhanced thermal dissipation for high-power applications.
- Status Indicators: Onboard LEDs indicate charging and operating conditions.
- Industrial Grade Performance: Designed to operate from -40°C to +85°C.
- Easy Wiring: Heavy-duty screw terminals for secure input and output connections.
Specifications:
- Model: XL4016 Buck Converter Module
- Control Modes: Constant Voltage (CV), Constant Current (CC)
- Maximum Output Power: 300W
- Maximum Output Current: 9A (with adequate cooling)
- Recommended Continuous Current: 5A – 6A without active cooling
- Input Voltage Range: 7V – 40V DC
- Output Voltage Range: 1.2V – 35V DC
- Conversion Efficiency: Up to 95%
- Switching Frequency: 300kHz
- Operating Temperature: -40°C to +85°C
- Cooling Method: Dual Aluminum Heatsinks
Terminal Connections:

- IN+: Positive DC Input (7V – 40V)
- IN-: Negative DC Input (Ground)
- OUT+: Positive Regulated Output
- OUT-: Negative Output (Ground)
Adjustment Controls:

- CV Potentiometer: Adjusts output voltage. Turn clockwise to increase voltage and counterclockwise to decrease voltage.
- CC Potentiometer: Adjusts maximum output current. Turn clockwise to increase the current limit, and counterclockwise to decrease it.
Applications:
- Lithium-ion battery charging systems
- Lead-acid battery chargers
- High-power LED drivers
- Laboratory bench power supplies
- Solar power systems
- DIY electronics projects
- Industrial automation equipment
- Motor and controller power regulation
Important Notes:
- No Reverse Polarity Protection: Reversing the input polarity may permanently damage the module.
- Input voltage must always be higher than the desired output voltage.
- For continuous loads above 5A–6A, active cooling with a fan is strongly recommended.
- The module can reach its maximum 300W rating only under suitable voltage, current, and cooling conditions.
- Monitor heatsink temperature during high-power operation to prevent overheating.
How to Use:
- Connect the DC input source to the IN+ and IN- terminals.
- Connect the load or battery to the OUT+ and OUT- terminals.
- Adjust the CV potentiometer to set the desired output voltage.
- Adjust the CC potentiometer to set the desired current limit.
- Verify voltage and current settings using a multimeter before connecting sensitive loads.
- Install additional cooling if operating at high current levels for extended periods.