LM2596 DC DC Step Down Converter Voltage Regulator LED Display Voltmeter 4.0~40 To 1.25-37V Buck Adapter Adjustable Power Supply

Description

LM2596 DC‑DC Step‑Down Converter – Adjustable Buck Power Supply with LED Voltmeter

Experience precise, reliable voltage conversion with the LM2596 DC‑DC Step‑Down Converter. Designed for hobbyists, engineers, and DIY enthusiasts, this compact buck adapter transforms a wide input range of 4.0 V – 40 V down to a finely tunable output of 1.25 V – 37 V, all while displaying real‑time voltage on a clear LED voltmeter.

Key Highlights

• Wide input voltage range: 4.0 V to 40 V (ideal for batteries, solar panels, and wall adapters)
• Adjustable output: 1.25 V to 37 V with 0.01 V resolution for exact power needs
• Integrated LED voltmeter for instant voltage monitoring
• High efficiency up to 92% thanks to the LM2596 switching regulator
• Compact PCB layout (45 mm × 30 mm) – perfect for tight spaces
• Built‑in protection: over‑current, over‑temperature, and short‑circuit safety
• Easy to use: just connect input, turn the potentiometer, and read the output

Why Choose This Buck Adapter?

Whether you’re powering Arduino projects, LED strips, Raspberry Pi accessories, or custom test rigs, the LM2596 step‑down converter delivers stable, low‑ripple power that protects sensitive electronics. Its adjustable range eliminates the need for multiple regulators, saving both space and cost.

Technical Specifications

• Regulator IC: LM2596 (3‑A switching regulator)
• Input Voltage: 4.0 V – 40 V DC
• Output Voltage: 1.25 V – 37 V DC (adjustable)
• Maximum Output Current: 3 A (typical), 2 A continuous at 12 V output
• Efficiency: ≤92 % (depends on voltage conversion ratio)
• Operating Temperature: -40 °C to 85 °C
• Dimensions: 45 mm × 30 mm × 15 mm
• Display: 4‑digit LED voltmeter (0.01 V resolution)
• Protection Features: Over‑current, over‑temperature, short‑circuit

Typical Applications

• Arduino, ESP32, and Raspberry Pi power modules
• LED lighting and strip drivers
• Battery management and solar charge controllers
• Portable test equipment and bench power supplies
• Robotics and drone power regulation

Upgrade your projects with a reliable, efficient, and easy‑to‑adjust power source. Order the LM2596 DC‑DC Step‑Down Converter today and enjoy stable voltage control with real‑time monitoring.