Description
The 4 USB DC-DC Buck Fast Charge Module is designed to provide efficient and rapid charging for multiple USB-powered devices. It features four independent USB-A ports with intelligent charging capabilities, making it suitable for charging stations, power banks, automotive retrofits, and other DC-powered projects . The module accepts a wide DC input range and steps down to a regulated USB output, supporting multiple fast-charging protocols including Qualcomm QC3.0/QC2.0, Huawei FCP/SCP, Samsung AFC, and MTK PE . Each port negotiates the optimal charging voltage independently, delivering up to 24W per port for compatible devices .
Key Features
- Four Independent USB Ports: Allows simultaneous charging of up to four devices without interference
- DC-DC Buck Converter: Efficiently steps down 6–32V DC input to stable USB output
- Multiple Fast-Charging Protocols: Supports QC3.0/QC2.0, Huawei FCP/SCP, Samsung AFC, MTK PE1.1/PE2.0, Spreadtrum SFCP, Apple 2.4A, BC1.2, and DCP
- High Efficiency: 90–97% conversion efficiency minimizes heat generation
- Comprehensive Protection: Input over/under-voltage, input over-current, output over-current, short-circuit, and over-temperature protection
- Cable Voltage Compensation: Automatically adjusts output voltage to compensate for cable resistance losses
- Compact Design: Easy to integrate into various electronic projects and enclosures
Technical Specifications
Parameter | Specification |
|---|---|
| Input Voltage | 6V – 32V DC |
| Output Voltage | 5V default; auto-adjusts 3–12V via fast-charge negotiation |
| Output Current | 0–3A per port |
| Total Output Power | Up to 24W per port |
| Number of Ports | 4 × USB-A |
| Conversion Efficiency | 90% – 97% |
| Operating Temperature | -40°C to +85°C |
| PCB Size | ~90mm × 45mm |
| Weight | ~34g |
Supported Fast-Charging Protocols
| Protocol | Description |
|---|---|
| Qualcomm QC3.0/QC2.0 | Adaptive voltage negotiation (3.6–12V) for QC-compatible devices |
| Huawei FCP/SCP | Fast charging for Huawei P/Mate series |
| Samsung AFC | Adaptive Fast Charging for Galaxy devices |
| MTK PE1.1/PE2.0 | MediaTek Pump Express for MTK-based phones |
| Spreadtrum SFCP | Fast charging for UNISOC chipset devices |
| Apple 2.4A | High-current charging for iPhone and iPad |
| BC1.2 / DCP | Standard USB charging for universal compatibility |
Applications
- Charging Stations: Ideal for creating multi-device charging stations
- Power Banks: Enhances portable power banks with multiple USB outputs
- Automotive Applications: Provides USB charging ports in vehicles (12V/24V systems)
- Solar Power Systems: Useful in solar setups for charging devices
- DIY Electronics Projects: Integrates easily into custom projects requiring USB power
- Raspberry Pi 4B / Jetson Nano Power: Can power these boards from 12V or 24V sources