LM2596 DC-DC Step-Down Power Module with LED Voltmeter Display

The LM2596 DC-DC Adjustable Step-Down Power Supply Module is a compact, high-efficiency buck converter designed for electronics enthusiasts, makers, and engineers. Whether you're powering DIY circuits, modifying equipment, or running experiments, this versatile module delivers stable, continuously adjustable output voltage from a wide range of DC input sources — including 24V down to 12V, 5V, or 3.3V.

Available with an optional built-in LED digital voltmeter display, you can monitor your output voltage in real time for precise parameter adjustment and faster prototyping.

Made in Mainland China.

Key Features

• Wide Input Voltage Range: Accepts a broad range of DC power sources — ideal for versatile bench or field applications.
• Continuously Adjustable Output: Dial in exactly the voltage your circuit needs, from standard rails like 3.3V, 5V, and 12V and beyond.
• High-Efficiency Conversion: Low heat generation and stable output protect downstream components from voltage fluctuations.
• Optional Digital Voltmeter Display: Real-time LED voltage readout makes tuning and monitoring quick and effortless.
• Built-In Protections: Overcurrent, overheat, and short-circuit protection safeguards your module and connected circuits.
• Breadboard-Compatible PCB: Compact design slots easily into maker circuits, breadboards, and custom enclosures.
• Ideal for DIY & Education: Perfect for electronic teaching experiments, equipment modification, and low-voltage device power supply projects.

Specifications

What's in the Box

• 1 × LM2596 DC-DC Step-Down Power Module (with or without LED voltmeter, per selection)

Please Note: Product images are for reference only and may not reflect actual size or colour. Please allow minor measurement differences due to manual measuring.

Explore More Tools & Electronics

• 1/2" Drive 8-Piece Hex Short Socket Set – Vanadium Steel
• 10-Pc Hex Nut & Bolt Extractor Kit 9–19mm | HIP Tools
• 105° Right Angle Driver with 1/4" Hex Screwdriver Bit | HIP

Learn more: OSHA on personal protective equipment

Frequently Asked Questions

Q: What is the LM2596 step-down power module used for?

A: The LM2596 DC-DC step-down converter module is used to reduce a higher DC input voltage to a lower, adjustable DC output voltage. It is widely used in DIY electronics, circuit prototyping, equipment modification, educational experiments, and anywhere a stable lower voltage is needed from a higher-voltage DC source (e.g. converting 24V to 12V, 5V, or 3.3V).

Q: What does the LED voltmeter version do differently?

A: The LED digital voltmeter version features a built-in display that shows your output voltage in real time, allowing you to monitor and fine-tune the output without needing a separate multimeter. This is especially useful during development, testing, and classroom experiments.

Q: Is this module compatible with breadboards?

A: Yes. The compact PCB design is breadboard-compatible, making it easy to integrate into maker circuits, hobbyist projects, and educational setups without additional hardware.

Q: Does the module include overcurrent or short-circuit protection?

A: Yes. The LM2596 module features built-in overcurrent, overheat, and short-circuit protection to help safeguard both the module itself and any downstream components connected to it.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.