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20W Adjustable Buck w/ Digital Display
2.990 Ft
Taxes included.
Pickup currently not available
Compact LM2596 step-down module with a built-in voltmeter. Set output via the onboard button, see live voltage on the display. Great for bench rigs, vehicle/24 V → 5 V rails, and DIY supplies.
Highlights
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Buck: 4–40 V in → 1.25–37 V out
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Up to 3 A (20 W max; thermals/layout dependent)
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LED digital display (live output voltage) + self-calibration
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Built-in OCP / OTP protections
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Simple 4-pad wiring (IN+/IN−, OUT+/OUT−)
Specs
| Property | Value |
|---|---|
| Topology | Non-isolated buck (LM2596) |
| Input Voltage | 4…40 V DC |
| Output Voltage | 1.25…37 V DC (adjustable) |
| Max Output Current | 3 A |
| Max Output Power | 20 W |
| Efficiency | up to ~88 % (ΔV/load-dep.) |
| Display | 3-digit LED, shows Vout; user calibration supported |
| Protections | Over-current (shutoff), over-temperature |
| Board Size | 66 × 36 mm |
| Weight | ~23 g (typ.) |
Pinout
IN+ IN− OUT+ OUT−
(Button: short-press adjust / long-press enters setting; exact UI may vary by revision.)
What’s in the Pack
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1× DFR0379 buck module