40W 3A Adjustable DC-DC Step-Down Buck Converter for 1S-4S LiPo
- Product Code:
- 2018-2-688
- Availability:
- 10
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9.50 ₺
Ex Tax: 8.33 ₺
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1S-4S Lithium Battery Compatible 40W 3A Adjustable Voltage Step-Down Converter
This module is a high-efficiency DC-DC buck (step-down) converter compatible with 1S-4S Li-ion/LiPo battery systems. With its 3A continuous output current and 40W power capacity, it is ideal for projects such as drones, robotics, LED driving, and IoT power management. Equipped with an aluminum heatsink, high-current inductor, and low-ESR capacitors, the module features overcurrent and thermal protection. The NTC sensor input and I2C (SCL/SDA) pads allow data reading or temperature feedback on certain models.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | Unbranded |
| Module Type | DC-DC Buck Converter (Step-Down) |
| Input Voltage | 4.5V - 28V DC (1S-4S Li-ion/LiPo) |
| Output Voltage | 1V - 24V Adjustable |
| Maximum Current | 3A (Continuous) |
| Maximum Power | 40W |
| Efficiency | Up to 95% |
| Output Protection | Overcurrent, thermal protection |
| Additional Connections | NTC, SDA, SCL |
| Cooling | Metal heatsink + high-current inductor |
| Dimensions | Compact power board form factor |
Pin Connections
Input (IN+, IN-)
| Pin | Description |
|---|---|
| IN+ | 1S-4S battery + or power adapter + |
| IN- | GND |
Output (OUT+, OUT-)
| Pin | Description |
|---|---|
| OUT+ | Adjustable DC output + |
| OUT- | Output GND |
Additional Pads
| Pad | Description |
|---|---|
| NTC | Temperature sensor input |
| SDA | I2C data |
| SCL | I2C clock |
| GND | Common ground |
Note: SCL/SDA functions may not be active depending on the model.
Package Contents
- 1 x 1S-4S Lithium Battery Compatible 40W 3A Adjustable Voltage Step-Down Converter
