KEHIPI
KEHIPI DC 5V Power Converter 5pcs Mini Buck Regulator 4.5-20V to 5V 3A 10W Adjustable Fixed Output
Five-pack of mini buck regulators stepping 4.5-20 V down to 5 V at up to 3 A with 97 % peak efficiency
- ColorBlack
- Weight0.634 ounces
- Wide input range from 4.5 to 20 volts suits many DC sources
- Up to 97 percent conversion efficiency reduces heat and power loss
- Output selectable between adjustable 1 to 16 volts or six fixed voltages
- Built-in short-circuit protection and enable pin add safety and control
- Five compact boards weigh only 0.634 ounces each for tight spaces
Five-piece DC-to-DC buck regulator kit
This pack supplies five miniature step-down converters that accept 4.5 V to 20 V input and deliver a stable 5 V output at up to 3 A peak. Each board measures a fraction of a coin diameter, making it practical for tight enclosures or breadboard experiments. Hobbyists and engineers can power microcontrollers, sensors or USB devices from higher-voltage sources such as 12 V batteries or 9 V adapters. The adjustable version covers 1 V to 16 V if the default setting is changed.
10 W continuous rating with 97 % peak efficiency
Typical conversion exceeds 90 % when dropping 12 V to 5 V at 2 A, so heat remains modest in that common scenario. The regulator sustains 2 A indefinitely and handles brief 3 A peaks, but sustained loads above 2 A will exceed the 10 W thermal budget. Output short-circuit protection activates automatically, though the fault should be cleared promptly. The enable pin defaults to active-high, allowing simple on-off control with a logic signal.
Solder-jumper voltage selection and enable pin
Fixed-output voltages of 1.8 V, 2.5 V, 3.3 V, 5 V, 9 V and 12 V are selected by cutting the adjustment pad and bridging the desired jumper. This semi-permanent method suits production batches but prevents quick field changes. The board weighs 0.634 ounces and ships in black, with no headers fitted so users solder wires or pins to match their layout. Buyers needing plug-and-play barrel jacks or screw terminals must add them separately.
Highlights
- Wide input range from 4.5 to 20 volts suits many DC sources
- Up to 97 percent conversion efficiency reduces heat and power loss
- Output selectable between adjustable 1 to 16 volts or six fixed voltages
- Built-in short-circuit protection and enable pin add safety and control
- Five compact boards weigh only 0.634 ounces each for tight spaces
Specifications
| Brand | DROK |
|---|---|
| Color | Black |
| Weight | 0.634 ounces |
Questions about this item
Will these 4.5-20V input boards work with the 12V rail I already use in my project?
Yes, the input range covers 12V and 9V sources, so your existing rail can feed each module directly.
How can I confirm the fixed 5V output is stable once the pad is cut and soldered?
Measure the output with a multimeter under load; the converter delivers up to 3A peak and typically exceeds 90% efficiency when stepping 12V down to 5V at 2A.
What comes in the 5-piece pack and do I need any extra parts to select a fixed voltage?
You receive five identical mini buck boards; to lock a fixed voltage you only need a knife to cut the pad and a soldering iron to bridge the desired voltage pad.
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