KEHIPI
KEHIPI DC 4.5-20V to 1-16V Buck Converter 10pcs Power Adapter
A pack of ten miniature synchronous buck modules that step DC 4.5-20V down to an adjustable 1-16V or fixed 1.8V, 2.5V, 3.3V, 5V, 9V or 12V at up to 3A peak
- ColorBlack
- Weight0.634 ounces
- Adjustable 1-16 V output fits many projects
- Fixed 1.8 V, 2.5 V, 3.3 V, 5 V, 9 V, 12 V options simplify wiring
- Up to 97 % conversion efficiency reduces heat
- Built-in short-circuit and enable control protects circuits
- Ten boards in one pack ready for batch builds
Ten-piece buck converter kit
This set provides ten identical non-isolated step-down modules that accept a DC input from 4.5 V to 20 V and deliver an adjustable output between 1 V and 16 V or a fixed output of 1.8 V, 2.5 V, 3.3 V, 5 V, 9 V or 12 V. Each board is rated for a peak current of 3 A with a long-term limit of 2 A and a maximum power of 10 W. The modules are designed for engineers, hobbyists and technicians who need compact voltage reduction in prototypes or permanent installations.
Solder-ready connections and enable control
Every unit arrives with 2.54 mm pitch welding holes for input, output and the enable pin, so integration requires soldering rather than plug-in headers. The enable port defaults to active-high operation with an internal pull-up to the input rail, allowing simple on-off control from a 2 V to 5 V logic signal. Short-circuit protection is built in, though sustained shorts should be avoided.
97 % peak efficiency at 12 V to 5 V 2 A
The synchronous rectification topology reaches up to 97 % conversion efficiency, typically exceeding 90 % when stepping 12 V down to 5 V at 2 A. Output ripple is typically 20 mV and the dynamic response settles within 5 % in 200 µs. The board operates from -40 °C to +85 °C, with derating at higher ambient temperatures. Buyers who need isolated regulation, reverse-input protection or over-voltage protection should look elsewhere.
Highlights
- Adjustable 1-16 V output fits many projects
- Fixed 1.8 V, 2.5 V, 3.3 V, 5 V, 9 V, 12 V options simplify wiring
- Up to 97 % conversion efficiency reduces heat
- Built-in short-circuit and enable control protects circuits
- Ten boards in one pack ready for batch builds
Specifications
| Brand | DROK |
|---|---|
| Color | Black |
| Weight | 0.634 ounces |
Questions about this item
Will the solder pads or the enable pin header need replacement after extended use?
The board uses welded connections on 2.54 mm spaced pads and an integrated enable pin; no user-replaceable parts are specified, so the module itself is the service unit.
At what output current does the 10 W limit become the bottleneck during continuous operation?
Continuous operation is rated within 2 A; at 5 V output the 10 W ceiling is reached at 2 A, so the current limit appears first.
How much heat does each converter dissipate when running 12 V to 5 V at 2 A all day?
Typical efficiency exceeds 90 % for 12 V to 5 V at 2 A, so roughly 1 W is lost as heat per module under those conditions.
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