2-Channel DC-DC Step-Down Power Module 5V/ADJ Toggle Switch
2-Channel DC-DC Step-Down Power Module 5V/ADJ Toggle Switch
2-Channel Adjustable Step-Down DC-DC Power Supply Module with Toggle Switch
Power your electronics projects with precision and flexibility using this compact 2-Channel DC-DC Step-Down Power Supply Module. Featuring dual output channels with a fixed 5V output and a fully adjustable (ADJ) output, this board is the ideal solution for hobbyists, makers, and electronics engineers who need reliable, regulated voltage conversion in a small form factor.
Equipped with a convenient toggle switch for easy on/off control and designed to handle up to 3A per channel (5A total), this module delivers stable power for a wide range of DIY electronics, Arduino/Raspberry Pi projects, robotics, and more. Made in Mainland China.
Key Features
- Dual Output Channels: One fixed 5V output and one fully adjustable (ADJ) output for versatile power delivery
- High Current Capacity: Up to 3A per channel, with a maximum combined output of 5A
- Built-in Toggle Switch: Convenient on/off control without disconnecting power
- Compact Design: Compact 68.5 × 61 mm board fits easily into enclosures and project builds
- Unbalanced Load Protection: Designed to handle unbalanced loads across channels
- DC-DC Buck Conversion: Efficient step-down conversion reduces heat and energy waste compared to linear regulators
Specifications
| Output Channels | 2 (5V fixed / ADJ adjustable) |
| Max Current Per Channel | 3A |
| Max Total Current | 5A |
| Toggle Switch | Yes |
| Board Size | 68.5 × 61 mm |
| Battery Included | No |
| Country of Origin | Made in Mainland China |
What's in the Box?
- 1× 2-Channel Adjustable Step-Down Power Supply Module
Please Note
- Due to lighting and screen differences, the item's color may appear slightly different from the pictures.
- Please allow 1mm–1cm tolerance due to manual measurement.
For general electronics safety guidelines and best practices when working with DC power supplies, visit the U.S. Consumer Product Safety Commission (CPSC).
Frequently Asked Questions
Q: What is the input voltage range for this DC-DC step-down power supply module?
A: The product listing specifies the output channels and current ratings; please consult the module's onboard markings or datasheet for the precise input voltage range. Typically, DC-DC buck converters of this type accept an input voltage above the desired output voltage (commonly 7V–35V input for 5V output applications).
Q: Can I use both channels simultaneously at full load?
A: Each channel supports up to 3A independently, but the maximum combined total current for both channels together is 5A. Ensure your total load does not exceed 5A across both outputs to maintain stable and safe operation.
Q: What does the adjustable (ADJ) channel mean?
A: The ADJ channel allows you to set a custom output voltage using an onboard potentiometer or trimmer, making the module flexible for powering components that require voltages other than the fixed 5V — great for prototyping and multi-voltage projects.
Q: Is this module suitable for Arduino or Raspberry Pi projects?
A: Yes! The fixed 5V output channel is perfectly suited for powering Arduino boards, Raspberry Pi, microcontrollers, and other 5V logic devices. The adjustable channel can simultaneously power sensors, motors, or other peripherals requiring a different voltage.