KEHIPI
KEHIPI 10 pcs DC 4.5-24V to 5V Buck Converter 3A Power Adapter
Pack of ten buck converters stepping 4.5–24 V down to selectable 5 V at up to 3 A with 97.5 % efficiency
- Wide input range suits many DC sources
- Fixed 5 V output selected on board back
- Up to 3 A current for demanding loads
- 5 % efficiency reduces heat waste
- Ultra-low 0.85 mA quiescent current saves battery
Ten-piece buck converter kit
The KEHIPI kit supplies ten identical step-down modules that accept DC 4.5-24V and deliver a regulated 5V rail at up to 3A. Each board measures 20 x 11 x 5 mm and uses 2.54 mm pitch solder pads for power and control connections. The synchronous design runs at 500KHz and achieves 97.5% efficiency at 6.5V to 5V, 0.7A.
Makers needing multiple fixed 5V rails
Hobbyists powering microcontrollers, sensors or USB devices from 12V or 24V sources can solder a board directly onto a perf-board or header strip. The enable pin draws only 0.85mA quiescent current, so a permanent battery connection is practical. Builders who require adjustable output above 5V, reverse-polarity protection or over-voltage shutdown should select a different module.
Solder-ready boards with selectable fixed outputs
The back-side jumpers let you choose 1.8V, 2.5V, 3.3V, 5V, 9V or 12V without any external components. At 12V in and 1.5A out no extra heatsink is needed; at full 3A load the temperature rises about 40°C, so forced air or a larger copper pour is advised. Short-circuit protection is present but not intended for continuous abuse.
Highlights
- Wide input range suits many DC sources
- Fixed 5 V output selected on board back
- Up to 3 A current for demanding loads
- 5 % efficiency reduces heat waste
- Ultra-low 0.85 mA quiescent current saves battery
Specifications
| Brand | AITRIP |
|---|---|
| Part Number | EC1691660A |
Questions about this item
What input voltage range must my power source provide for the KEHIPI buck converter to operate?
The module accepts a DC input range of 4.5-24V, so any source within that window — such as a 12V battery or 24V supply — will work.
Will the 2.54 mm pin spacing on this converter match the perfboard I already use for prototypes?
Yes, the welding-hole spacing is 2.54 mm, which is the standard pitch used on most perfboards and breadboards.
How can I verify the converter is regulating correctly after I solder it in place?
Measure the output with a multimeter; you should see the selected fixed voltage (1.8V, 2.5V, 3.3V, 5V, 9V or 12V) or your adjusted value between 0.8-17V, with ripple around 20 mV under load.
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