Description
DC Fast Charging USB Buck Converter Module – QC3.0 / PD3.0 / PPS Fast Charging (3 Variants)
The DC Fast Charging USB Buck Converter Module is a compact high-efficiency DC-DC step-down charging module designed to convert a DC input voltage into a regulated fast-charging USB output. It is ideal for DIY power supplies, automotive electronics, battery-powered systems, solar applications, emergency backup systems, and portable charging solutions.
This product is available in three variants to suit different applications:
- Type-A USB (6V–30V Input) – Supports QC3.0 fast charging with a wider input voltage range.
- Type-A USB (10V–30V Input) – Supports QC3.0 fast charging for higher-voltage DC systems.
- Type-C USB (10V–30V Input) – Supports multiple modern fast charging protocols including PD3.0, PD2.0, PPS, QC4+, QC3.0, QC2.0, FCP, AFC, and MTK-PE, making it ideal for charging smartphones, tablets, wireless chargers, and USB-C devices.
All variants feature MOS reverse polarity protection, output over-voltage protection, high conversion efficiency, compact size, and easy DIY installation. The onboard heatsink ensures reliable operation during continuous high-current charging.
Please select the correct variant before placing your order. Fast charging protocols and input voltage range vary by model.
Whether you're building a custom charger, upgrading your vehicle's charging system, or creating a portable emergency power solution, this module delivers reliable fast charging with advanced protection features.
Key Features
- Available in 3 variants (Type-A & Type-C)
- High-efficiency DC-DC buck converter
- Supports multiple USB fast charging protocols
- Compact DIY charging module
- Reverse polarity protection
- Output over-voltage protection
- Onboard aluminum heatsink
- Suitable for battery-powered systems
- Low heat MOS input protection
- Stable regulated USB output
- Easy wiring for beginners
- Ideal for emergency charging solutions
- Suitable for automotive and solar applications
- Reliable and durable PCB construction
Technical Specifications
| Specification | Type-A USB (6V–30V) | Type-A USB (10V–30V) | Type-C USB (10V–30V) |
|---|---|---|---|
| USB Connector | USB Type-A | USB Type-A | USB Type-C |
| Input Voltage | DC 6V–30V | DC 10V–30V | DC 10V–30V |
| Output Voltage | 5V / 9V / 12V | 5V / 9V / 12V | 5V / 9V / 12V (Protocol Controlled) |
| Maximum Output Current | Up to 3A | Up to 3A | Up to 3A (Device Dependent) |
| Typical Output Power | Up to 24W | Up to 24W | Up to 24W |
| Supported Fast Charging Protocols | QC3.0, DCP, FCP, AFC | QC3.0, DCP, FCP, AFC | PD3.0, PD2.0, PPS, QC4+, QC3.0, QC2.0, FCP, AFC, MTK-PE |
| Reverse Polarity Protection | Yes | Yes | Yes |
| Output Over-voltage Protection | Yes | Yes | Yes |
| Cooling | Aluminum Heatsink | Aluminum Heatsink | Aluminum Heatsink |
| PCB Dimensions | Approx. 37 × 20 mm | Approx. 37 × 20 mm | Approx. 37 × 20 mm |
| Installation | DIY Wire Connection | DIY Wire Connection | DIY Wire Connection |
| Recommended Applications | General USB Fast Charging | Automotive & Battery Systems | USB-C PD Fast Charging |
| Variant | Best For | Fast Charging Support |
|---|---|---|
| Type-A USB (6V–30V) | Low-voltage battery systems, solar projects, DIY power supplies | QC3.0, AFC, FCP, DCP |
| Type-A USB (10V–30V) | Automotive electronics, UPS, industrial battery systems | QC3.0, AFC, FCP, DCP |
| Type-C USB (10V–30V) | Modern USB-C smartphones, tablets, PD chargers, wireless charging | PD3.0, PD2.0, PPS, QC4+, QC3.0, QC2.0, AFC, FCP, MTK-PE |
Applications
- DIY USB Chargers
- Car Charging Systems
- Motorcycle USB Chargers
- Solar Battery Systems
- Battery Packs
- Portable Power Stations
- Emergency Backup Charging
- Robotics Projects
- Industrial DC Power Systems
- Wireless Charger Power Supply
- Mobile Phone Charging
- Tablet Charging
- Outdoor Camping Power Solutions
- Embedded Electronics
- Maker & DIY Projects
Precautions
- Select the correct product variant before ordering.
- Verify the input voltage matches the selected module.
- Observe correct input polarity during installation.
- Do not exceed the recommended input voltage.
- Ensure adequate airflow around the heatsink during continuous operation.
- Keep the module away from moisture and conductive materials.
- Use suitable wire gauge for higher current applications.
- Fast charging depends on both the connected device and cable compatibility.