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Small green circuit board with blue potentiometer and solder pads

GCON

GCON DC 4.5-24V to 0.8-17V Buck Converter 3A gender changer

SKU CH-H2GQ-VWWM3

A compact buck converter steps DC 4.5-24V down to adjustable 0.8-17V or fixed 1.8V, 2.5V, 3.3V, 5V, 9V, 12V at up to 3A with low ripple and an enable port

  • Wide 4.5-24V input suits many power sources
  • Adjustable 0.8-17V output with six fixed presets
  • 3A peak current for demanding loads
  • Low-ripple, high-efficiency buck topology
  • Enable pin allows simple on/off control

Compact DC buck converter for low-voltage projects

This GCON buck converter steps input voltages from 4.5V up to 24V down to an adjustable 0.8V-17V range. It also offers six fixed outputs of 1.8V, 2.5V, 3.3V, 5V, 9V and 12V selectable on the board. The module delivers up to 3A and suits hobbyists repairing or prototyping small electronics.

Practical limits of the buck topology

Efficiency drops and heat rises as the gap between input and output widens or when drawing the full 3A, so extra cooling becomes necessary at maximum load. Testing at 12V input with a 1.5A load showed stable operation without added cooling. The enable pin defaults the module to off when pulled low, allowing simple external control.

Replaces larger fixed regulators

Builders move to this module when a project needs multiple precise voltages from a single supply or when board space is at a premium. The jump is worth it if you need both adjustable and preset outputs in one tiny package. It is not suited for applications requiring isolation or step-up conversion.

Highlights

  • Wide 4.5-24V input suits many power sources
  • Adjustable 0.8-17V output with six fixed presets
  • 3A peak current for demanding loads
  • Low-ripple, high-efficiency buck topology
  • Enable pin allows simple on/off control

Specifications

No published specifications for this item yet.

Questions about this item

Should I pick the fixed 1.8V, 2.5V, 3.3V, 5V, 9V or 12V outputs or use the adjustable 0.8-17V range?

Use the six fixed voltages by soldering the pot on the back side for common rails; switch to the potentiometer when you need a custom level between 0.8V and 17V.

What does the 3A maximum output current mean when the board is inside my project?

It can deliver up to 3A, but at full load extra cooling is required; at 12V in and 1.5A out it runs without additional heatsinking.

The module takes a 4.5-24V input — what output voltage ceiling does that impose?

The adjustable output stops at 17V, so even with a 24V supply you cannot exceed 17V; the fixed selections top out at 12V.

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