Overview: Dual Display DC-DC 3A Step Down Power Supply
The Dual Display (LCD) DC-DC 3A Step Down Power Supply is a compact, high-efficiency buck converter designed for precise voltage control in electronics projects, lab work, and light industrial applications. Featuring dual LCD displays, this adjustable regulator makes it easy to monitor both input and output voltages in real time. With an adjustable 1.25V to 37V output and support for up to 3A continuous current, it is ideal for powering microcontrollers, sensors, LEDs, small motors, and other low-to-medium power devices.
Key Features
- Dual LCD Displays: Simultaneous input and output voltage readouts for quick diagnostics and adjustments.
- Adjustable Output: 1.25V to 37V output voltage via onboard potentiometer for flexible voltage regulation.
- Wide Input Range: Accepts 4V to 40V DC input, compatible with batteries, adapters, and other sources.
- 3A Continuous Current: Reliable continuous output up to 3A for common DIY and development board needs.
- High Efficiency: Up to 92% conversion efficiency to reduce heat generation and improve performance.
- Integrated Protections: Overcurrent, short-circuit, and over-temperature protection to safeguard the module and connected devices.
- Compact and Durable: Small form factor and robust construction for tight builds and long-term use.
Technical Specifications
- Input Voltage: 4V to 40V DC
- Output Voltage: 1.25V to 37V DC (adjustable)
- Maximum Output Current: Up to 3A continuous
- Displays: Dual LCD for input and output voltage monitoring
- Conversion Efficiency: Up to 92%
- Protections: Overcurrent, short-circuit, over-temperature
- Form Factor: Compact module for easy mounting and enclosure integration
Applications
- Power supply for microcontrollers, development boards, and sensor modules
- Voltage regulation for LEDs, small DC motors, and battery-powered devices
- Prototyping, testing, and bench use in electronics labs
- Embedded systems and DIY electronics projects
- Industrial and educational setups requiring adjustable power
How to Use
- Connect a suitable DC source (4V to 40V) to the module input terminals.
- Power the module and read the input voltage on the LCD input display.
- Adjust the output voltage using the onboard potentiometer while monitoring the output LCD display until the desired voltage is reached.
- Connect the load to the output terminals. Ensure the current draw does not exceed 3A continuous.
- If an overload or thermal condition occurs, allow the module to cool and resolve the issue before reuse.
Safety and Protection Notes
- Observe proper polarity when connecting input and output terminals to prevent damage.
- Use adequate heat dissipation or a heatsink if operating near the maximum current for extended periods.
- The module includes overcurrent, short-circuit, and over-temperature protection but always verify connections before powering sensitive devices.
Why Choose This DC-DC Step Down Module
This Dual Display DC-DC 3A Step Down Power Supply combines versatility, efficiency, and real-time voltage monitoring in a compact package. It is an excellent choice for hobbyists, makers, and engineers who need a reliable adjustable buck converter for bench testing, prototypes, and small production projects. The clear LCD readouts simplify setup and troubleshooting, while built-in protections provide added peace of mind during development and testing.
Note: Images are for illustration purposes only. Actual product design and specifications may vary slightly.
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