The XY-3606 DC-DC Step-Down Buck Converter is a power conversion module designed to reduce a higher DC input voltage to a lower DC output voltage. With its screw terminals, DC barrel jack, and USB-A output port, it is suitable for powering electronic circuits, microcontrollers, and DIY projects.
Features
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Step-down DC-DC voltage conversion
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Compact PCB design with onboard components
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Screw terminals for input and output connections
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DC barrel jack for convenient power input
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USB-A port for powering compatible devices
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High-efficiency switching regulator design
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Suitable for electronics prototyping and DIY applications
Specifications
| Specification | Details |
|---|---|
| Product Name | XY-3606 DC-DC Buck Converter |
| Module Type | Step-Down (Buck) Converter |
| Input Type | DC |
| Input Connector | DC barrel jack / screw terminal |
| Output Connector | USB-A / screw terminal |
| Conversion | Higher DC voltage to lower DC voltage |
| Inductor Marking | 330 |
| PCB Color | Blue |
| Mounting Type | PCB module |
| Output Adjustment | Depends on the module version |
Terminal Configuration
| Connection | Function |
|---|---|
| Input + (VIN+) | Positive DC supply input |
| Input − (VIN−) | Negative DC supply input |
| Output + (VOUT+) | Positive regulated output |
| Output − (VOUT−) | Negative output / ground |
| USB-A Port | Power output for compatible USB devices |
| DC Jack | DC power input |
Confirm the printed PCB labels before connecting power, as terminal positions may vary between versions.
Applications
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Arduino and microcontroller power supplies
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ESP32 and sensor projects
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DIY electronic circuits
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USB-powered devices within the module’s ratings
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Battery-powered projects
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Embedded systems and prototyping
Advantages
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Convenient screw-terminal connections
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Multiple power connection options
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Compact and easy to integrate
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Switching conversion can be more efficient than linear regulation
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Useful for bench testing and DIY electronics
Size
Compact rectangular PCB module. Exact dimensions are not confirmed from the image.
Package Includes
– 1 × XY-3606 DC-DC Step-Down Buck Converter Module
Note
The exact input voltage range, adjustable output range, maximum current, and power rating cannot be confirmed from the image alone. Check the module’s datasheet or PCB markings before use. A buck converter only steps voltage down; do not exceed its rated input or output current.








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