Introducing the 5/10PCS Mini DC‑DC 12‑24V to 5V 3A Step‑Down Power Supply Module – a compact, high‑efficiency buck converter designed for hobbyists, engineers, and professionals who need reliable voltage regulation in a small footprint. Whether you’re building a DIY Arduino project, powering a Raspberry Pi, or integrating into an industrial control system, this adjustable voltage regulator delivers stable output across a wide range of voltages, ensuring your electronics run smoothly.
Key Highlights
- ✅ Wide Input Range: Accepts 12 V – 24 V DC, perfect for car batteries, solar panels, and wall adapters.
- ✅ Adjustable Output: Selectable voltages of 1.8 V, 2.5 V, 3.3 V, 5 V, 9 V, and 12 V to match any device requirement.
- ✅ High Current Capability: Delivers up to 3 A continuous output for power‑hungry modules.
- ✅ Compact Size: Miniature 20 mm × 15 mm footprint saves board space.
- ✅ Efficient Conversion: Up to 95 % efficiency reduces heat and extends battery life.
- ✅ Built‑In Protection: Over‑current, over‑temperature, and short‑circuit safeguards protect your circuitry.
- ✅ Easy Installation: Pin header layout fits standard breadboards and PCB mounts.
Technical Specifications
- Input Voltage: 12 V – 24 V DC
- Output Voltage: 1.8 V, 2.5 V, 3.3 V, 5 V, 9 V, 12 V (adjustable via solder bridge or potentiometer)
- Output Current: 3 A (max)
- Efficiency: ≤ 95 %
- Operating Temperature: -40 °C ~ 85 °C
- Dimensions: 20 mm × 15 mm × 5 mm
- Package: 5‑pcs or 10‑pcs bulk pack
- Certifications: RoHS compliant
Why Choose This Buck Converter?
When reliability matters, this mini DC‑DC module stands out. Its high efficiency minimizes power loss, while the robust protection circuitry guards against accidental overloads. The adjustable output eliminates the need for multiple regulators, simplifying your design and reducing BOM costs.
Ideal Applications
- Arduino, ESP8266, ESP32 development boards
- Raspberry Pi power supply upgrades
- LED lighting and strip drivers
- Portable battery‑powered devices
- Automotive electronics and CAN‑bus modules
- IoT gateways and sensor nodes
- Industrial control panels and PLC accessories
Package Options
Available in convenient packs of 5 or 10 modules, ensuring you have the right quantity for prototyping, small‑scale production, or bulk inventory.
Customer Support
Our technical team is ready to assist with wiring diagrams, voltage setting instructions, and troubleshooting tips. We also provide a 12‑month warranty for peace of mind.
Upgrade your projects with the Mini DC‑DC 12‑24V to 5V 3A Step‑Down Power Supply Module today – the smart, space‑saving solution for stable, adjustable power.
Price: Original price was: $ 9.32.$ 2.98Current price is: $ 2.98.

