20W Adjustable DC DC Buck Converter Module With Digital Voltage Display And 3A Output
The 20W Adjustable DC-DC Buck Converter is a versatile step-down voltage regulator module designed for powering a wide range of electronic devices and embedded systems. Based on the LM2596 3A switching regulator, the module accepts DC input voltages from 4V to 40V and provides a continuously adjustable output voltage from 1.25V to 37V. The integrated digital display eliminates the need for external measurement tools by showing input or output voltage directly on the module, making voltage adjustment faster, easier, and more precise.
The output voltage can be conveniently adjusted using the onboard precision potentiometer, while the digital display provides real-time voltage monitoring. Featuring high conversion efficiency of up to 88%, the module minimizes power loss and heat generation during operation. Built-in reverse polarity, overheating, and short-circuit protection improve system safety and reliability. With screw terminal connections requiring no soldering, this buck converter is ideal for DIY power supplies, battery-powered systems, automotive electronics, industrial equipment, and embedded power management applications.
Key Features

LM2596 Step-Down Regulator: Reliable DC-DC buck conversion technology.
Integrated Digital Display: Displays input or output voltage directly on the module.
Adjustable Output Voltage: Continuously adjustable from 1.25V to 37V.
Wide Input Voltage Range: Supports 4V to 40V DC input.
Maximum Output Current: Up to 3A output capability.
20W Output Power: Suitable for a wide range of electronics projects.
High Conversion Efficiency: Typical efficiency up to 88%.
Input and Output Voltage Monitoring: Selectable voltage display function.
Display On/Off Function: The display can be disabled when not required.
Screw Terminal Connections: Easy installation without soldering.
Protection Features: Reverse polarity, overheating, and short-circuit protection.
Precision Voltage Adjustment: Onboard potentiometer for accurate output control.

Applications

DIY adjustable power supplies
Battery-powered projects
Automotive electronics
Industrial equipment
Embedded systems
Arduino power supplies
Raspberry Pi power conversion
Portable electronic devices
Laboratory prototyping
DC voltage regulation
Solar power projects
Electronics repair and testing

Package List:

20W Adjustable DC-DC Buck Converter with Digital Displayx1