LM2596 DC-DC Buck Converter 3A Adjustable Step-Down Module
LM2596 DC-DC Buck Converter 3A Adjustable Step-Down Module
LM2596 Ultra-Small DC-DC Buck Converter – 3A Adjustable Step-Down Power Supply Module
Take control of your electronics projects with this compact LM2596S DC-DC Buck Converter Module. Whether you're stepping down from 24V to 12V, 5V, or 3V, this ultra-small switching regulator delivers stable, adjustable output with up to 3A continuous current. Its SMD design makes it ideal for space-constrained builds, DIY electronics, Arduino projects, robotics, alarm systems, and custom power supplies.
Key Features
- Wide Input Voltage Range: 4V – 35V DC input
- Adjustable Output Voltage: Easily step down to 12V, 5V, 3V, or any value within range
- 3A Continuous Output Current for reliable, steady power delivery
- LM2596S Switching Regulator Chip – efficient, low heat, high stability
- Ultra-Compact SMD Form Factor – fits into tight enclosures and PCB layouts
- Operating Temperature: -45°C to +85°C for broad environmental compatibility
- High Efficiency Switching Design reduces wasted energy compared to linear regulators
- Suitable for alarm systems, embedded electronics, LED drivers, and more
- Made in Mainland China
Technical Specifications
| Input Voltage | 4V – 35V DC |
| Output Voltage | Adjustable (e.g. 3V / 5V / 12V) |
| Output Current | 3A (max) |
| Regulator IC | LM2596S |
| Package Type | SMD |
| Operating Temperature | -45°C ~ +85°C |
| Type | Voltage Regulator / Buck Converter |
| Condition | New |
| Quantity | 1 Module |
What Is a Buck Converter?
A buck converter (step-down converter) is a DC-DC power supply that reduces a higher input voltage to a lower, regulated output voltage. The LM2596 chip achieves this efficiently using pulse-width modulation (PWM) switching, producing far less heat than traditional linear voltage regulators like the 7805. This makes it perfect for battery-powered devices, automotive electronics, and any project where energy efficiency matters.
Perfect For
- Arduino, Raspberry Pi, and microcontroller power supplies
- DIY electronics and PCB prototyping
- Alarm and security systems
- LED strip and driver power conversion
- Automotive and solar power projects
- Robotics and motor driver boards
Related Products You May Like
- Electromagnetic Induction Tester – Coil & Circuit Fault Detector
- Air Compressor Pressure Gauge 0-10/0-12/0-25 Bar | DIY Tool
- 360° Bicycle Chain Cleaner Tool | Bike Gear Cleaning Kit
Learn more: OSHA guidance on hand and power tools
Frequently Asked Questions
Q: What input voltage range does the LM2596 buck converter module support?
A: This LM2596S DC-DC buck converter module supports an input voltage range of 4V to 35V DC, making it compatible with a wide variety of power sources including 12V, 24V, and battery supplies.
Q: How do I adjust the output voltage on this module?
A: The output voltage is adjusted by turning the onboard potentiometer (trim pot). Connect a multimeter to the output terminals while adjusting to dial in your target voltage — for example, 3.3V, 5V, or 12V.
Q: What is the maximum current this LM2596 module can handle?
A: The module is rated for up to 3A continuous output current. For best performance and longevity, it is recommended to operate below the maximum rated current, especially in warm environments.
Q: Is this module suitable for Arduino or Raspberry Pi projects?
A: Yes! This LM2596S step-down module is widely used to power Arduino, Raspberry Pi, ESP32, and other microcontrollers by converting a higher voltage source (e.g., 12V) down to 5V or 3.3V efficiently.