{"product_id":"qc3-qc2-usb-dc-dc-buck-converter-fast-step-down-charger-6-32v-to-3v-5v-12v","title":"QC3.0 \/ QC2.0 USB DC-DC Buck Converter Module — Fast Step-Down Charger, 6–32V to 3V \/ 5V \/ 12V","description":"\u003ch2\u003eQC3.0 \/ QC2.0 USB DC-DC Buck Converter Module — Fast Step-Down Charger, 6–32V Input\u003c\/h2\u003e\u003cp\u003eThis \u003cstrong\u003eQC3.0 \/ QC2.0 USB DC-DC buck converter module\u003c\/strong\u003e steps down a 6–32V DC input to a USB output supporting Qualcomm Quick Charge 3.0 and 2.0 protocols — delivering 5V, 9V, or 12V at up to 18W to compatible devices. It enables fast charging from 12V car batteries, 24V truck systems, solar battery banks, and industrial DC supplies. The USB-A output negotiates the optimal charging voltage with QC-compatible smartphones and tablets automatically.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e6V – 32V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003e3.6–6.5V (5V), 6.5–9V (9V), 9–12V (12V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Output Power\u003c\/td\u003e\n\u003ctd\u003e18W (QC3.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging Protocol\u003c\/td\u003e\n\u003ctd\u003eQC3.0, QC2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Connector\u003c\/td\u003e\n\u003ctd\u003eUSB-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTopology\u003c\/td\u003e\n\u003ctd\u003eStep-down (buck)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficiency\u003c\/td\u003e\n\u003ctd\u003eUp to 93%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eQC3.0 vs QC2.0 vs Standard 5V USB\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eQC3.0 (This Module)\u003c\/th\u003e\n\u003cth\u003eQC2.0\u003c\/th\u003e\n\u003cth\u003eStandard USB\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e18W\u003c\/td\u003e\n\u003ctd\u003e18W\u003c\/td\u003e\n\u003ctd\u003e5W (5V\/1A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Steps\u003c\/td\u003e\n\u003ctd\u003e200mV increments\u003c\/td\u003e\n\u003ctd\u003e5V\/9V\/12V fixed\u003c\/td\u003e\n\u003ctd\u003e5V only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge Speed\u003c\/td\u003e\n\u003ctd\u003eUp to 4× faster\u003c\/td\u003e\n\u003ctd\u003eUp to 3× faster\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDevice Compatibility\u003c\/td\u003e\n\u003ctd\u003eQC3.0 + QC2.0 + 5V\u003c\/td\u003e\n\u003ctd\u003eQC2.0 + 5V\u003c\/td\u003e\n\u003ctd\u003e5V only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose This QC3.0 Buck Module?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003e6–32V wide input\u003c\/strong\u003e — covers 12V car, 24V truck, and solar battery systems\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eQC3.0 + QC2.0 protocol\u003c\/strong\u003e — fast charges Qualcomm-compatible smartphones up to 4× faster\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e18W output\u003c\/strong\u003e — significantly faster than standard 5W USB chargers\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eUp to 93% efficiency\u003c\/strong\u003e — minimal heat generation\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e-40°C to +85°C\u003c\/strong\u003e — reliable in automotive and outdoor environments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e12V \/ 24V vehicle QC3.0 fast charger\u003c\/li\u003e\n\u003cli\u003eSolar battery bank fast USB charging output\u003c\/li\u003e\n\u003cli\u003eDIY QC3.0 fast charger power bank\u003c\/li\u003e\n\u003cli\u003eIndustrial DC supply USB fast charging port\u003c\/li\u003e\n\u003cli\u003eMarine and RV 12V to QC USB converter\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 × QC3.0 \/ QC2.0 USB DC-DC Buck Converter Module\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991450570987,"sku":"\u003cnone\u003e","price":6.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/qc3-0-qc2-0-usb-dc-dc-buck-converter-fast-step-down-charger-6-32v-3v-5v-12v.webp?v=1761801237","url":"https:\/\/keszoox.com\/products\/qc3-qc2-usb-dc-dc-buck-converter-fast-step-down-charger-6-32v-to-3v-5v-12v","provider":"Keszoox","version":"1.0","type":"link"}