QC3.0 Fast Charge USB Buck Converter Module - Solar Phone Charger Step-Down Power Supply

QC3.0 Fast Charge USB Buck Converter Module - Solar and Car Charging Step-Down Power Supply

A compact DC-DC step-down buck converter module with a USB-A output and Micro USB input, supporting Quick Charge 3.0 fast charging protocol. Designed for solar panel to phone charging, car charging retrofit installations, home power supply smart plug modification, and portable fast charge adapter builds.

Key Features

• Quick Charge 3.0 (QC3.0) support - fast charge compatible smartphones and devices
• USB Type-A output port - connect any QC3.0 or standard USB charging cable
• Micro USB input - accepts power from solar panels, batteries, or DC sources
• Step-down (buck) topology - efficient DC-DC conversion for regulated USB output
• Compact black PCB - fits easily inside custom enclosures and retrofit installations
• Onboard filtering capacitors - stable, clean output voltage for sensitive devices
• Wide application range - solar charging, car retrofit, smart plug, recorder power supply

Specifications

• Charging Protocol: Quick Charge 3.0 (QC3.0)
• Topology: Step-Down (Buck)
• Input: Micro USB
• Output: USB Type-A
• Output Voltage: 5V / 9V / 12V (QC3.0 negotiated)
• PCB Color: Black
• Form Factor: Compact inline module

Applications (as shown on module label)

• Solar panel to mobile phone charging
• Car charging retrofit
• Driving recorder power supply
• Home power supply and smart plug modification
• Fast charge adapter build

Perfect For

• Solar Panel USB Fast Charger Output Stage
• 12V Car or Motorcycle USB QC3.0 Charging Retrofit
• DIY Fast Charge Power Bank Output Module
• Arduino / ESP32 Project USB Power Delivery
• Custom Smart Plug and IoT Device Power Supply
• Portable Dashcam and Recorder Power Supply

Order now and add Quick Charge 3.0 fast charging capability to your solar, car, or DIY power supply project.