Description
The XL4005 Adjustable Buck Converter provides an efficient way to convert a DC voltage to a lower regulated DC voltage. Unlike linear regulators that dissipate excess voltage mainly as heat, this module uses switching regulation to achieve better efficiency in medium- and high-current applications.
The XL4005 controller operates from an input voltage of 5V to 32V and supports output currents of up to 5A under suitable operating and cooling conditions. The output voltage is adjusted using the onboard potentiometer, allowing the module to be configured for many different power requirements.
The XL4005 operates at approximately 300kHz switching frequency, allowing efficient power conversion in a relatively compact module. XLSEMI specifies approximately 90% efficiency at a test condition of 12V input, 5V output and 5A load. Actual efficiency depends on input voltage, output voltage, load current and module construction.
This module is suitable for powering microcontroller boards, motors, LED circuits, communication modules, battery-powered projects and other electronics requiring a stable voltage lower than the available DC supply.
Key Features
- XL4005 high-power buck regulator
- DC-to-DC step-down conversion
- 5–32V DC input range
- Adjustable output voltage
- Up to 5A maximum output current
- Approximately 300kHz switching frequency
- High-efficiency switching design
- Onboard voltage adjustment potentiometer
- Compact module design
- Suitable for high-current electronics projects
- Stable regulated DC output
- Suitable for battery and adapter-powered systems
- Built-in XL4005 current limiting and thermal protection functions
Technical Specifications
- Product Type: Adjustable DC-DC Step-Down Converter
- Regulator IC: XL4005
- Converter Type: Buck / Step-Down
- Input Voltage: 5–32V DC
- Output Voltage: Adjustable, always lower than the input voltage
- XL4005 Feedback Voltage: Approximately 0.8V
- Maximum Output Current: Up to 5A
- Switching Frequency: 300kHz typical
- Chip Rated Power: Up to approximately 100W under appropriate conditions
- Typical Efficiency: Approximately 90% at 12V input, 5V output and 5A test condition
- Voltage Adjustment: Onboard Potentiometer
- Output Type: Regulated DC
- Cooling: Additional airflow or heatsinking may be required at high current
The XL4005 manufacturer specifies a 5–32V operating input range, 5A switching-current capability and 300kHz typical operating frequency.
Package Includes
- 1 × XL4005 Adjustable DC-DC Step-Down Buck Converter Module
Applications
- Adjustable DC power supplies
- Arduino projects
- ESP32 and microcontroller projects
- Robotics
- DC motor power supplies
- LED lighting projects
- Battery-powered electronics
- Automotive electronics projects
- Solar-powered systems
- CCTV power systems
- Communication equipment
- DIY bench power supplies
- Voltage conversion projects
- Electronic prototyping
Benefits
- Converts higher DC voltage to a lower required voltage efficiently
- Adjustable output supports many different projects
- Up to 5A capability for higher-current loads
- More efficient than conventional linear regulators in many applications
- Compact size makes integration easier
- Wide 5–32V input range
- Useful with batteries, DC adapters and other regulated power sources
- Suitable for both hobby and professional electronics projects
Why Choose This Product?
The XL4005 DC-DC Adjustable Step-Down Converter is a practical solution when you need to reduce a 5–32V DC source to a lower regulated voltage while supporting relatively high-current loads. Its 5A maximum capability, 300kHz switching regulator, adjustable output and efficient buck-converter design make it suitable for robotics, LED systems, microcontroller projects, battery applications and custom electronics power supplies.
