4A Buck Boost Converter with Display

The 4A Buck Boost Converter with Display is a versatile DC-DC regulator that steps up or down voltage to provide a stable power supply for sensitive electronics. Its high-efficiency synchronous design ensures minimal heat and superior performance, while the built-in digital voltmeter allows real-time monitoring of input and output voltages—ideal for DIY electronics, IoT nodes, battery charging systems, and portable power solutions.

🔧 Technical Specifications

• Input Voltage: 5 V – 30 V DC

• Output Voltage: Adjustable 1.2 V – 30 V DC

• Output Current: Up to 4 A continuous, 6 A peak (with adequate heat dissipation)

• Conversion Type: Buck-boost (step-up / step-down)

• Efficiency: Up to 92% (typical)

• Display: Integrated 3-digit digital voltmeter for input/output monitoring

• Ripple: <50 mV (typical) for clean power to microcontrollers

• Switching Frequency: 180 kHz high-frequency operation

• Protections: Over-current, over-temperature, short-circuit

• Dimensions: ~65 mm × 47 mm × 20 mm

⚙️ Key Advantages & Trending Features

• Automatic buck-boost ensures stable voltage whether input is above or below output.

• Real-time voltage display simplifies testing and power management.

• High current output suitable for motors, LED strips, and Raspberry Pi projects.

• Compatible with Arduino boards, Raspberry Pi, ESP32, and other embedded systems.

• Perfect for DIY power supplies, solar charging, and battery balancing.

🛠️ Applications & Use Cases

• Battery-powered IoT devices requiring stable regulated voltage.

• Portable power banks and USB charging stations.

• Robotics: drive motors or servos with steady supply.

• LED lighting systems with fluctuating input voltage.

• DIY bench power supply for electronics prototyping.

⚡ Safety & Precautions

• Use a proper heat sink or active cooling at higher loads.

• Ensure correct polarity to prevent damage.

• Power with a reliable Power Supply for accurate voltage regulation.

• Adjust output voltage before connecting sensitive electronics.

🔗 Helpful Internal Links

• Additional Electronics Components for your power projects.

• Microcontrollers and sensors from Arduino and Accessories.

• Assembly tools in Tools and Accessories.

• Supporting ICs and regulators in ICs.

🎥 Video Tutorial

[YouTube tutorial link here]

📝 Product Summary

The 4A Buck Boost Converter with Display provides a high-efficiency, wide-range DC-DC solution with real-time voltage readout. Perfect for Arduino, Raspberry Pi, robotics, LED lighting, and portable power applications, it delivers reliable step-up/step-down power with built-in protections.