Description
LM2596 Adjustable DC-DC Buck Converter Module
The LM2596 DC-DC Buck Converter Module is an adjustable step-down voltage regulator designed to convert a higher DC input voltage into a lower regulated DC output voltage. It is suitable for powering electronic circuits, microcontrollers, sensors, and other DC-powered devices.
It is LM2596 HV DC-DC Buck Converter with voltage rating 4.5-40V to 3-35V. This step down power module is adjustable with a potentiometer.Adjustment method: first correct input power (between 4.5-50V) then multimeter to monitor the output voltage and adjust potentiometer (usually clockwise turn boost, buck turn counterclockwise),Static power consumption is only about 6mA.Potentiometer adjustment direction is as Clockwise (increase) and Anti-clockwise (decrease).Non-synchronous rectification
Based on the LM2596 switching regulator IC, this module provides adjustable output voltage through an onboard potentiometer. It supports an input voltage range of 4.5V to 40V and an adjustable output range of approximately 3V to 35V, depending on the module version and input voltage.
The switching converter design offers better efficiency than traditional linear voltage regulators in many applications. Its compact design makes it useful for Arduino projects, robotics, battery-powered systems, and DIY electronics.
Key Features
- LM2596-based DC-DC step-down converter.
- Adjustable output voltage using an onboard potentiometer.
- Input voltage range: 4.5V–40V DC.
- Advertised output voltage range: 3V–35V DC.
- Switching voltage regulation for improved efficiency.
- Suitable for powering microcontrollers and electronic modules.
- Compact PCB design.
- Useful for battery-powered and embedded electronics projects.
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | DC-DC Buck Converter |
| Regulator IC | LM2596 |
| Conversion Type | Step-Down (Buck) |
| Input Voltage | 4.5V–40V DC |
| Adjustable Output Voltage | 3V–35V DC (advertised; subject to input voltage) |
| Maximum Output Current | Depends on module design and cooling; commonly advertised up to 3A |
| Switching Frequency | 150 kHz (LM2596 specification) |
| Output Adjustment | Onboard potentiometer |
| Regulation Type | Switching voltage regulator |
| Protection | Depends on module version |
| Cooling | Depends on load and operating conditions |
| Module Dimensions | Not specified; confirm with supplier |
Applications
- Arduino and ESP32 power supplies
- Robotics and automation projects
- Battery-powered electronic devices
- DC motor control power supplies
- LED power supply applications
- IoT and embedded systems
- DIY electronics projects
- Voltage regulation for sensors and modules
Important Notes
- This is a step-down converter only. The output voltage must be lower than the input voltage.
- The output voltage cannot exceed the available input voltage.
- Adjust the output voltage using the potentiometer and measure it with a multimeter before connecting your device.
- The commonly advertised 3A output is dependent on cooling, input/output voltage difference, and module construction. Continuous high-current operation may require additional cooling.
- Check input and output polarity before connecting.
- Do not exceed the module’s specified input voltage or current limits.
- This module regulates voltage; it is not a constant-current LED driver.
- Confirm the actual output range and protection features of the supplied board version.
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