LM2596 Step Down Buck Converter

The LM2596 Step Down Buck Converter is a high-efficiency DC-DC power module designed to provide a stable, adjustable output voltage for a wide range of DIY electronics, IoT devices, and embedded systems. Using a robust LM2596 regulator IC, it efficiently converts higher DC voltages down to a safe, lower level, making it perfect for powering Arduino boards, Raspberry Pi, sensors, LED strips, and robotics.

🔹 Key Features

• Wide Input Range: Accepts 4.5 V to 40 V DC.

• Adjustable Output: 1.25 V to 37 V DC with onboard precision potentiometer.

• High Current Output: Up to 3 A continuous (4 A peak with adequate cooling).

• Efficiency: Up to 92%, reducing heat and power loss.

• Thermal & Short-Circuit Protection: Built-in safeguards for reliable operation.

• Compact Design: Ideal for tight enclosures and portable projects.

🔹 Technical Specifications

• Regulator IC: LM2596S

• Input Voltage: 4.5 V – 40 V DC

• Output Voltage: 1.25 V – 37 V DC (adjustable)

• Max Output Current: 3 A continuous (recommend heat sink for >2 A)

• Conversion Efficiency: Up to 92%

• Switching Frequency: ~150 kHz

• Ripple: <30 mV

• Operating Temperature: –40 °C to +85 °C

• Dimensions: ~43 mm × 21 mm × 14 mm

🔹 Applications & Use Cases

• Arduino & IoT Projects: Provide a stable power rail for microcontrollers and sensors.

• LED Lighting & Strips: Step down from 12 V or 24 V supply to desired LED voltage.

• Battery-Powered Systems: Regulate lithium or lead-acid battery output to safe levels.

• Robotics & Drones: Power motors, controllers, or FPV equipment efficiently.

• Industrial & Automotive: Use as a reliable low-voltage power source for control circuits.

🔹 Advantages for Makers & Engineers

• Simple screw-terminal or solder pad connections.

• High efficiency reduces heat generation, extending component life.

• Works seamlessly with Electronics Components and Tools and Accessories for integration into custom builds.

🔹 Safety & Precautions

• Ensure proper heat dissipation for loads above 2 A.

• Do not exceed maximum input voltage (40 V) to avoid damage.

• Adjust output voltage with a multimeter before connecting sensitive electronics.

🔗 Helpful Internal Links

• Browse more Power Supply modules.

• Pair with Arduino and Accessories for embedded projects.

• Check Electronics Components for sensors and add-ons.

🎥 Video Tutorial

[YouTube tutorial link here]

📝 Product Summary

The LM2596 Step Down Buck Converter offers adjustable 1.25 V–37 V output with up to 3 A current, perfect for Arduino, Raspberry Pi, robotics, LED lighting, and automotive power applications.