Tel: +86 18933510102

72V To 5V 3A Double Line USB

- Input voltage: 20-72V DC

- Output voltage: 5V DC

- Maximum output current: 3A

- Efficiency: up to 96%

- Output ripple: <50mVp-p

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

- Dimensions:46*32*18MM
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一、About product

The 72V to 5V 3A double line USB step-down converter is an electronic device that converts high voltage (72V) into low voltage (5V) while maintaining a stable output of 3A. This type of converter is commonly used in automotive, industrial, and other applications where a higher voltage source needs to be stepped down to power USB devices such as smartphones, tablets, and other digital accessories.

The double line feature means that it has two output lines for powering multiple USB devices simultaneously. It typically employs a switching regulator design to efficiently convert the input voltage to the desired output voltage, while ensuring that the output remains within the specified range. The device may also include over-current protection, over-voltage protection, and thermal shutdown features to enhance safety and reliability.

Overall, the 72V to 5V 3A double line USB step-down converter is a versatile and useful device for anyone who needs to power USB devices from a higher voltage source.

二、Product details

Here are some more specific product details for the 72V to 5V 3A double line USB step-down converter:

- Input voltage: 20-72V DC

- Output voltage: 5V DC

- Maximum output current: 3A

- Efficiency: up to 96%

- Output ripple: <50mVp-p

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

- Dimensions:46*32*18MM

The converter typically includes input and output wires, as well as a USB port or ports for connecting devices. It may also have indicator lights to show whether it is functioning properly, and protection features such as over-current, over-voltage, and over-temperature protection to prevent damage to connected devices.

It's worth noting that the specifications of a specific product may vary slightly depending on the manufacturer and model, so it's important to check the product documentation to ensure that it meets your requirements.

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.


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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
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