This DC-DC synchronous buck power module is designed with a professional synchronous buck solution, delivering excellent conversion efficiency. It supports a wide DC input voltage range of 11–70V, and the output voltage can be flexibly adjusted between 3.3–24V. Equipped with a real-time input and output voltage display function, the voltage status is intuitive and easy to check. With a rated power of 336W, it can provide a maximum peak current of 28A under 12V output, which fully meets the power conversion requirements of wide-voltage input and high-current output in various scenarios.

• This dc to dc converter support 11–70V DC input; adjustable DC output voltage range: 3.3–24V DC; maximum power: 336W (12V, 28A); Supports an external zero-power consumption switch.
• The LED screen can display input and output voltage; automatic screen-off after 3 minutes.
• It has automatic overcurrent protection, overheating protection, and short-circuit protection.
• Aluminum alloy housing with mounting holes, and dedicated wiring ports for convenient reuse.
• Suitable for golf carts, car audio systems, heavy-duty trucks, LED lights, advertising screens, monitoring systems, motors, solar panels, laboratories, experimental projects, electronic systems, DIY projects, etc.

PROFESSIONAL SYNCHRONOUS BUCK DESIGN ENSURES EXCELLENT CONVERSION EFFICIENCY

It supports a wide DC input voltage range of 11–70V, and the output voltage can be flexibly adjusted between 3.3–24V.
The dc-dc converter common step-down applications, such as: 48v to 12v converter, 48v to 12v golf cart converter, 20v to 12v step down converter, 36 volt to 12 volt converter

Buck Converter Introduction

Buck Converter User Guide Video

00:14-02:45 Introduction to the step-down converter
02:46-06:49 Practical operation (replace the original vehicle battery with the step-down converter)
06:50-08:08 Display settings and voltage calibration

Wiring Diagram

This product has a rated power of 336W and can deliver a maximum peak current of 28A at 12V output, fully meeting the power conversion requirements of wide voltage input and high current output in various scenarios.

Wiring Diagram 2

You can operate according to the connection diagram above

Wide Applications

It is suitable for golf carts, car audio systems, heavy-duty trucks, LED lights, advertising screens, monitoring systems, motors, solar panels, laboratories, experimental projects, electronic systems, DIY projects and more.

Warning：

● This is only a DC step-down converter and has no voltage-boosting function.

● The output voltage must be at least 2V lower than the input voltage.

● Ensure correct connection of positive and negative polarities during use.

● This converter must be kept away from water and cannot be exposed to moisture.

● There is no built-in cooling fan inside the module. Slight heating during operation is normal. However, if running at high power for a long time, please install an additional cooling fan.

FQA
1、Q : Why is there no response when turning the potentiometer?
      A : When the voltage difference between input and output is less than 2V, turn the potentiometer clockwise repeatedly until you hear a slight click or the screen data changes

2、Q : Can the output voltage be higher than the input voltage?
      A : No. This is a step-down module and can only reduce voltage. The output voltage must be at least 2V lower than the input voltage.

3、Q : Does the module consume power all the time?
      A : No. This module supports 0 power consumption. Just turn off the module switch when not in use, and it will not consume power.

4、Q : Why did the LED screen turn off?
       A: This is normal. The screen turns off automatically after 3 minutes of inactivity to enter power-saving mode. Press the KEY button to wake it up. The screen off does not affect the output voltage.

5、Q : Is it normal for the module to heat up during use?
      A : This module has a compact design with no built-in fan and uses an external aluminum case for heat dissipation. Slight heating under high power is normal. For high-power or full-load operation, an additional cooling fan is recommended.

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