QC3.0 Fast Charging Module

30W QC3.0 Fast Charging DC-DC Buck Converter Module with USB Type-C Output (PD3.0 / PPS / QC3.0 Supported) is an advanced, smart single-port step-down DC-DC power board designed for building, upgrading, and repairing USB-C fast charging systems. With full support for international fast-charge standards, this module delivers stable and safe power for a wide range of portable electronic devices, including smartphones, tablets, and USB-C powered gadgets.

The 30W DC fast charging module for mobile devices accepts a wide DC input voltage range from 7.1V to 32V and, thanks to its built-in intelligent controller, dynamically adjusts the output voltage from 3V to 20V. The output voltage and current are automatically negotiated according to the active charging protocol of the connected device. This smart regulation not only maximizes charging speed but also protects the battery and load circuitry from over-voltage, over-current, and instability.

This 30W Fast Charging buck module features a USB Type-C output port and supports flexible input options, including a DC5521 female jack and solder pads for direct wiring. The DC jack is ideal for quick adapter connection in desktop and testing scenarios, while the solder pads allow permanent installation in industrial projects, automotive systems, power banks, and DIY charging boxes.

The module supports a wide range of fast-charging protocols, including USB Power Delivery 3.0 (PD3.0), PPS, Quick Charge 2.0 / 3.0 (QC2.0 / QC3.0), Samsung AFC, Huawei FCP (non-SCP), SFCP, and BC1.2. It provides stable standard PD power profiles such as 5V/3A, 9V/3A, 12V/2.5A, 15V/2A, and 20V/2A. PPS support enables fine-step voltage adjustment, significantly improving the charging efficiency of modern batteries and reducing heat generation.

In the hardware design of this 30W PD fast charging module with DC input jack and single USB-C output, high-frequency low-ESR capacitors, wide power traces, and an optimized component layout are used. The result is high efficiency, low thermal loss, low output noise, and long-term reliability under continuous operation, making this module suitable for semi-industrial and industrial applications, as well as professional DIY power solutions.

Type-C Fast Charging Module Application:

1. Car Chargers – Ideal for fast-charging smartphones and devices on the go
2. Professional Power Banks – High-efficiency charging for modern portable batteries
3. Portable Power Supplies – Reliable DC output for mobile and field applications
4. USB-C Charging Stations – Supports multi-device fast charging with PD, PPS, QC protocols
5. Test Equipment & Advanced DIY Projects – Perfect for electronics prototyping, repair, and custom USB-C power solutions

Fast Charging DC-DC Buck Converter Specification:

1. Model: LX-6537C
2. Module Type: DC-DC Buck Fast Charging Module
3. Number of Outputs: Single Port
4. Maximum Output Power: 30W
5. Input Voltage: 7.1V – 32V DC
6. Input Method: DC 5.5×2.1 female jack + solder pads
7. Output Voltage: 3V – 20V (automatic adjustment)
8. Maximum Output Current: Up to 3A
9. Output Port: USB Type-C
10. Dimensions: 21.7 × 47.4 × 9.5 mm (L × W × H)
11. Weight: 9.2 g
12. Supported Protocols: PD 3.0, PPS, QC 2.0, QC 3.0, Samsung AFC, Huawei FCP, SFCP, BC1.2