The 24W QC3.0/QC2.0 USB DC-DC Buck Converter is a high-efficiency step-down charging module designed for fast charging smartphones, tablets, and electronic devices using various quick charge protocols. It converts 6V to 32V DC input into a stable 3V–12V output, automatically adjusting voltage according to the connected device’s fast-charging requirements.

This DC-DC converter module is built for vehicle charging, solar power systems, power banks, and DIY energy applications, delivering up to 24 watts of output power with 90–97% conversion efficiency. It supports Qualcomm Quick Charge 2.0 & 3.0, Huawei AFC, MTK PE1.1/PE2.0, Apple/Samsung fast charging protocols, and more, ensuring broad compatibility with modern electronic devices.

With integrated overvoltage, overcurrent, short-circuit, and overtemperature protection, it guarantees reliable performance and safe operation under heavy load conditions. This module is ideal for custom power supplies, vehicle modifications, solar charging systems, and portable device charging circuits.

Features:

• Wide input voltage range: 6V–32V DC

• Intelligent output voltage adjustment (3V–12V) after fast charge trigger

• Maximum output power: 24W ([email protected], [email protected], 12V@2A)

• High conversion efficiency: 90%–97%

• Supports major fast-charging standards (QC2.0/QC3.0, AFC, MTK PE, Apple, Samsung, SFCP)

• Built-in protection: overvoltage, undervoltage, overcurrent, short circuit, and thermal protection

• Compact PCB design suitable for embedded applications

• Excellent for car chargers, solar charge converters, and DIY power modules

Specifications:

• Input Voltage Range: 6V–32V DC

• Output Voltage: Default 5V, adjustable 3V–12V (auto fast charge)

• Output Power: Max 24W

• Output Current: [email protected], [email protected], 12V@2A

• Efficiency: 90%–97%

• Fast Charging Protocols: BC1.2, Apple, Samsung, QC2.0, QC3.0, MTK PE1.1/PE2.0, Huawei AFC, Spreadtrum SFCP

• Protection Features: Input/output overvoltage, overcurrent, short-circuit, and overtemperature protection

• Module Type: DC-DC Step Down (Buck) Converter

• Application Voltage Range: 6V, 9V, 12V, 24V systems

Applications:

• Solar panel to USB fast charging

• Vehicle or motorcycle power modification

• Power bank and mobile charging circuits

• DVR and dashcam power supply

• DIY home or industrial DC power transformation

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