Description
The LM2596S Step-Down Constant Current Voltage Driver Module is a high-efficiency DC-DC buck converter designed for applications requiring both constant voltage (CV) and constant current (CC) control. With a maximum output current of 3A, this module is widely used in LED drivers, battery charging systems, power supply design, and DIY electronics where stable and adjustable output is critical.
Built around the LM2596S switching regulator IC, the module offers excellent conversion efficiency, low heat generation, and reliable performance. It includes onboard multi-turn potentiometers for precise adjustment of voltage and current. This makes it ideal for powering sensitive loads such as lithium battery packs, LED strips, motors, microcontrollers, and sensors.
Key Features
- Step-down (buck) converter with high efficiency
- Adjustable constant voltage (CV) and constant current (CC) modes
- Supports up to 3A continuous output current
- Wide input voltage range and stable regulation
- Multi-turn potentiometer for fine tuning
- LED indicator for constant current mode
- Built-in protection for overload and thermal issues
- Ideal for battery charging and LED driving applications
- Compact, durable PCB design for project integration
Specifications
| Module Type | Step-Down Buck Converter (CC/CV) |
| Chip | LM2596S |
| Input Voltage | 4V – 40V DC |
| Output Voltage | 1.25V – 35V DC (adjustable) |
| Max Output Current | 3A (recommended 2A continuous) |
| Output Power | Up to 15W (without heat sink), up to 30W (with cooling) |
| Modes | Constant Voltage (CV), Constant Current (CC) |
| Efficiency | Up to 92% |
| Adjustment | Dual multi-turn potentiometers (V & I) |
| Size | Standard compact module dimensions |
Applications
- DIY power supply projects
- LED driver module for high-power LEDs
- Lithium battery charging (18650, Li-ion, Li-Po)
- DC motor speed control
- Solar power regulation and small energy systems
- Robotics and electronic prototypes
- Voltage and current controlled laboratory setups
- Step-down conversion for microcontroller circuits
Package Includes
- 1 × LM2596S Step-Down Constant Current Voltage Driver Module – 3A
