Adjustable 3A 30W DC 5.5 -30V to DC 0.5 -30V Step Down Buck Converter Power Supply Module

The Adjustable 3A 30W DC Step-Down Buck Converter Module is a high-efficiency DC-DC power supply designed to convert a higher DC input voltage into a lower adjustable DC output voltage. Based on a switching regulator design, it provides stable output with minimal heat generation. The onboard multi-turn potentiometer allows precise voltage adjustment, making it ideal for powering electronics, DIY projects, and embedded systems.

Technical Specifications:

• Input voltage range: 5.5V – 30V DC
• Output voltage range: 0.5V – 30V DC (adjustable)
• Maximum output current: 3A
• Maximum output power: 30W
• Conversion type: Step-down (Buck)
• Conversion efficiency: Up to 90–95% (typical)
• Switching frequency: Approx. 150 kHz (typical)
• Output ripple: Low ripple design
• Adjustment type: Multi-turn potentiometer
• Protection features: Overcurrent and thermal protection (IC dependent)
• Operating temperature: -40°C to +85°C

Features:

• Wide input voltage range
• Adjustable output voltage
• High efficiency switching design
• Compact PCB module
• Large inductor for stable performance
• Onboard filter capacitors
• Multi-turn precision adjustment potentiometer
• Suitable for constant voltage applications

Applications:

• Battery-powered projects
• DIY power supplies
• Arduino and microcontroller power regulation
• LED drivers (constant voltage type)
• Automotive voltage step-down applications
• Industrial control circuits
• Embedded systems and robotics