DC 6V–40V to 5V 3A Dual USB Step-Down Converter LM2596
DC 6V–40V to 5V 3A Dual USB Step-Down Converter LM2596
DC 6V–40V to 5V 3A Dual USB Step-Down Converter Module (LM2596)
Power your devices on the go with this compact and highly efficient DC-DC step-down converter module. Featuring dual USB output ports and built on the reliable LM2596 regulator, this module steps down any input voltage between 6V and 40V to a stable 5V at up to 3A — perfect for charging smartphones, MP3 players, tablets, and other USB-powered devices from vehicle batteries, solar panels, or custom DIY power supplies.
Made in Mainland China.
Key Features
- Wide Input Range: Accepts 6V to 40V DC input — compatible with 12V and 24V systems
- Stable 5V Output: Fixed 5V output at up to 3A for reliable USB device charging
- Dual USB Ports: Charge two devices simultaneously
- High Efficiency: Up to 92% conversion efficiency minimizes heat and energy waste
- Short Circuit Protection: Built-in protection safeguards connected devices
- Compact Design: Measures just 59mm × 21mm × 17mm — ideal for embedded DIY projects
- Wide Operating Temperature: Rated from -40°C to +85°C for demanding environments
Technical Specifications
| Input Voltage | 6V – 40V DC |
| Output Voltage | 5V DC (Fixed) |
| Output Current | 3A (Max) |
| Switching Frequency | 150 kHz |
| Conversion Efficiency | Up to 92% |
| Operating Temperature | -40°C to +85°C |
| Color | Red |
| Dimensions | 59mm × 21mm × 17mm |
| Regulator IC | LM2596 |
What's in the Box
- 1× DC-DC Step-Down Converter Module with Dual USB Output
Great For DIY Projects & More
Whether you're building a custom solar charging station, a vehicle-mounted USB hub, or a DIY portable power bank, this step-down module delivers clean, regulated 5V power from a variety of high-voltage DC sources. Its small footprint and wide input voltage range make it one of the most versatile converter modules available for hobbyists and electronics enthusiasts.
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Frequently Asked Questions
Q: What input voltage range does this DC-DC step-down converter support?
A: This LM2596-based step-down converter module accepts a wide input range of 6V to 40V DC, making it compatible with common 12V and 24V vehicle or battery systems, as well as solar panel outputs.
Q: Can I use this module to charge two devices at the same time?
A: Yes! The module features dual USB output ports, both supplying a stable 5V output. The total combined output current is 3A, so you can split charging between two USB devices simultaneously.
Q: Is this module safe for sensitive electronics?
A: This module includes built-in short circuit protection and is built around the proven LM2596 switching regulator, providing a stable and regulated 5V output to keep your connected devices safe during operation.
Q: What is the size of this step-down converter module?
A: The module measures 59mm × 21mm × 17mm — a compact form factor that fits easily into custom enclosures, vehicle dashboards, or DIY electronics projects.
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.