Tel: +86 18933510102

55V To 5V 3A Double Line USB

- Input voltage range: 8-55V DC

- Output voltage: 5V DC

- Maximum output current: 3A

- Efficiency: up to 96%

- Operating temperature range: -40°C to +85°C

- Dimensions:46*32*18MM

- Weight:65G
facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
sharethis sharing button

一、About product

The 55V to 5V 3A double line USB step down converter is an electronic device that can convert a high voltage input of 55V to a low voltage output of 5V, while providing a maximum current output of 3A. This converter is specifically designed for use with USB devices and features two output lines, making it suitable for charging or powering two devices simultaneously.

The converter uses a step-down topology to achieve the voltage conversion, which involves lowering the voltage while increasing the current. It also incorporates various protection features such as over-temperature, short-circuit, and over-current protection to ensure safe and reliable operation.

This type of converter is commonly used in electronic applications where a high voltage power source needs to be stepped down to a lower voltage suitable for powering USB devices. Some examples include charging mobile phones, tablets, and other portable electronic devices, as well as powering USB-powered sensors, cameras, and other devices in industrial and automotive applications.

二、Product details

- Input voltage range: 8-55V DC

- Output voltage: 5V DC

- Maximum output current: 3A

- Efficiency: up to 96%

- Operating temperature range: -40°C to +85°C

- Dimensions:46*32*18MM

- Weight:65G

- Output interface: Double USB A female ports

The converter uses a synchronous rectification scheme to achieve high efficiency, which can help reduce power consumption and heat generation. It also has built-in EMI filtering to reduce electromagnetic interference and ensure stable operation.

The converter is designed to be compact and easy to install, with screw terminals for connecting the input and output wires. It can be used in a wide range of applications that require a reliable and efficient power source for USB devices.

三、The competitive advantage of product line:

The company has passed CE/ROHS certification. OEM and ODM service is available.

四、Production capacity:

Product Line Name

Production Line Capacity

Actual Units Produced(Previous Year)

Power converter/Step-down converter/DC converter

Power converter: 40,000 Pcs / Month, Step-down converter: 10,000 Pcs / Month, DC converter: 40,000 Pcs / Month

Power converter: 400,000 Pcs, Step-down converter: 100,000 Pcs, DC converter: 400,000 Pcs


1. Are you a manufacturer?
Yes! We are a professional leading manufacturer engaged in the R & D, production, sale and service of DC-DC, AC-DC switching power, we have developing team with above 15 years experience can offer personalized power solutions.
2. What is your MOQ? Delivery time? Shipping Cost?
The MOQ is only 1pcs. The delivery time and shipping cost depends on the quantity of goods, shipping method and country.
3. Can I get samples?
Yes. We can send samples for checking. We usually choose Express delivery to send samples for quick testing.
4. Do you support OEM & ODM?

Yes, we can customize the product logo, packaging and specifications you need.
5. How to place an order?
Please send PO to Service and we will draft the Alibaba insurance order for you according to your needs. The payment methods we support include T/T, Western Union, paypal, etc
6. How can you make sure your quality? What's your products warranty?
We only use the best quality (original) parts to ensure that our product standards are the highest. All the products we sell are produced by experienced workers and 100% have been strictly inspected by QC department before shipping. The warranty is 1 year.


Related Products


Huizhou Calculus Technology Co., Ltd. is a leading manufacturer specializing in the R&D, production, sales and service of DC-DC and AC-DC converter.




 Tel: +86 18933510102  
 Add: 6th Floor, Building 8, Yinong Technology Rural Revitalization Technology Industry Demonstration Park, No. 3, Xinhua Avenue, Chenjiang Street, Zhongkai High-Tech Zone,Huizhou City,Guangdong Province,China
© 2023 Huizhou Calculus Technology Co., Ltd. All rights reserved. Sitemap Support By Gdglobal