mini dc-dc stepup converter board

📖 Description

The 3.7V–12V Mini DC‑DC Boost Converter Board is a compact and efficient module designed to step up low input voltages (like a single Li‑ion cell at 3.7V) to selectable outputs of 5V, 8V, 9V, or 12V. Its ultra‑small size, affordability, and versatility make it ideal for DIY electronics, portable devices, and embedded projects.

🔑 Key Features

• Input Voltage Range: 2.5V up to VOUT–0.5V
• Selectable Output Voltages: 5V, 8V, 9V, 12V (default 12V)
• Maximum Output Current: ~1A (varies with input voltage)
• Efficiency: ~85% typical
• Dimensions: ~22mm × 11mm × 3.5mm
• Weight: ~4g
• PCB Color: Black
• Design Highlights:
  • Labeled solder pads for voltage selection
  • LED indicator (can be disabled to save power)
  • Ultra‑compact footprint with central inductor “3R3”
  • Low idle consumption (<1mA if LED disabled)

⚙️ Applications

• Boosting single‑cell Li‑ion batteries (3.7V → 5V/9V/12V)
• Portable electronics (Arduino, sensors, small circuits)
• USB‑powered projects (stable 5V from low‑voltage sources)
• DIY gadgets (wireless modules, LED drivers, small amplifiers)

📝 Summary

This mini DC‑DC boost converter is a cost‑effective, ultra‑compact solution for powering small electronics from low‑voltage sources. With selectable outputs up to 12V and efficiency around 85%, it’s perfect for hobbyists, makers, and engineers looking for reliable voltage step‑up in portable projects.