Adjustable Step-Down • 3–40 V In → 1.5–35 V Out • Up to 3 A
Dial in the voltage you need using the onboard multi-turn potentiometer — perfect for powering 3.3 V, 5 V, 9 V, 12 V and other rails from higher DC sources.
LM2596 buck topology provides efficient step-down conversion in a small footprint — handy for DIY, robotics, and embedded projects.
Clean, no LED indicators design to minimise light pollution in enclosures and reduce quiescent draw.
| Parameter | Value |
|---|---|
| Input Voltage | ≈ 3 V – 40 V DC |
| Output Voltage | ≈ 1.5 V – 35 V DC (adjustable) |
| Max Output Current | Up to 3 A (derate with heat) |
| Conversion Efficiency | Up to ~92% (load/conditions dependent) |
| Module Size | ~45 × 20 × 14 mm (per module) |
| Pack Quantity | 5 modules |
| Indicators | None (no onboard LEDs) |
| Terminals | IN+ / IN− / OUT+ / OUT− |
| Notes | Input must exceed desired output by ~1.5 V; do not reverse polarity. |
This LM2596 step-down (buck) converter 5-pack is ideal for powering microcontrollers, sensors, LED strips, radios, and other DC loads from batteries or higher-voltage adapters. Each board offers a wide input range and a smoothly adjustable output so you can standardise on one module for many builds.
The no-LED layout keeps things discreet inside instrument panels and reduces stray light for camera/optics projects. Use one on the bench for quick prototyping, and keep the rest ready for your next robotics, IoT, or maker project.
| Operating Voltage | 3.3 V – 5 V DC |
|---|---|
| Channels | 3 (independent, adjustable) |
| Outputs | 3× Digital (active level varies by board) |
| Sensing Elements | IR LED + Phototransistor (per channel) |
| Detection Distance | Approx. 2–15 mm (surface-dependent) |
| Indicators | Per-channel status LEDs |
| Adjustments | 3× trim-pot threshold controls |
| Connector | VCC / GND / D1 / D2 / D3 |
| Recommended Use | Educational, R&D or hobbyist environments only |
| Statement | For educational laboratory and R&D use only.(non-RoHS). |
|---|---|
| WEEE | Not subject to WEEE marking; obligations apply to final equipment. |
| Manufacturer |
Little Muffins Things Limited 166 River Heights, 90 High Street London E15 2GQ littlemuffinsthings.com |
| EU Responsible Person |
eucomply OU Parnu mnt. 139b–141 13117 Tallinn, Estonia hello@eucompliancepartner.com |
