{"product_id":"dc-dc-step-down-converter-9-36v-to-5v-3a-dual-usb-power-module","title":"DC-DC Step-Down Converter 9–36V to 5V 3A Dual USB Power Module","description":"\u003ch2\u003eDC-DC Step-Down Converter with Dual USB Output – 9V\/12V\/24V\/36V to 5V 3A\u003c\/h2\u003e\n\u003cp\u003ePower your USB devices anywhere with this compact and reliable \u003cstrong\u003eDC-DC buck (step-down) converter module\u003c\/strong\u003e. Designed for car charging, solar power systems, and DIY electronics projects, it efficiently converts a wide input voltage range (9V to 36V) down to a stable 5V output with up to 3A of current — perfect for charging smartphones, tablets, and other USB-powered devices on the go.\u003c\/p\u003e\n\n\u003cp\u003eWhether you're building a solar charging station, retrofitting a vehicle, or working on an electronics project, this regulated power module delivers clean, stable 5V power through two USB ports simultaneously. Its compact 5 × 3.5 cm PCB form factor fits neatly into enclosures and tight spaces.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Input Range:\u003c\/strong\u003e Accepts 9V, 12V, 24V, or 36V DC input — ideal for car batteries, solar panels, and lead-acid systems\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStable 5V Output:\u003c\/strong\u003e Regulated output voltage of approximately 5V, accounting for charging line loss\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual USB Ports:\u003c\/strong\u003e Charge two USB devices simultaneously\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUp to 3A Output Current:\u003c\/strong\u003e Maximum 3A output; stable 2A continuous output without a heatsink\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e PCB size of 5 × 3.5 cm — lightweight and easy to integrate\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Regulated:\u003c\/strong\u003e Built-in regulation circuitry for consistent, safe output\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBroad Applications:\u003c\/strong\u003e Suitable for automotive, solar, marine, and DIY electronics setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9V – 36V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Output Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3A (2A stable without heatsink)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Ports\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 × USB\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModule Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 × 3.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 × DC-DC Step-Down Converter Module\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e⚠️ Important Safety Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eEnsure correct polarity at all times. Reversed polarity will damage the module.\u003c\/li\u003e\n  \u003cli\u003eDo not exceed 36V input voltage — exceeding this limit will cause chip damage.\u003c\/li\u003e\n  \u003cli\u003eDo not touch the sampling resistors or IC components while the circuit is operating, as this may cause output voltage instability and potential damage to connected equipment.\u003c\/li\u003e\n  \u003cli\u003eFor continuous output above 2A, attach an appropriate heatsink to the module.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/360-bicycle-chain-cleaner-tool-gear-cleaning-kit\"\u003e360° Bicycle Chain Cleaner Tool | Bike Gear Cleaning Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.energystar.gov\/products\" target=\"_blank\" rel=\"noopener\"\u003eENERGY STAR product efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What input voltages does this DC-DC step-down converter support?\u003c\/h4\u003e\n\u003cp\u003eA: This buck converter module accepts a wide input voltage range of \u003cstrong\u003e9V to 36V DC\u003c\/strong\u003e, making it compatible with common sources such as 12V car batteries, 24V truck systems, and solar panel outputs up to 36V.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I use this converter to charge two devices at the same time?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The module features \u003cstrong\u003etwo USB output ports\u003c\/strong\u003e, allowing you to charge two USB devices simultaneously. The total output current is up to 3A (shared across both ports), with a stable continuous rating of 2A when used without an additional heatsink.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Do I need a heatsink for this module?\u003c\/h4\u003e\n\u003cp\u003eA: A heatsink is not required for outputs up to 2A continuous. If you need to sustain output current closer to the 3A maximum for extended periods, attaching a suitable heatsink to the module is recommended to maintain stability and protect the components.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this module suitable for solar charging applications?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. The wide 9–36V input range makes this converter an excellent fit for \u003cstrong\u003esolar power setups\u003c\/strong\u003e, allowing you to step down solar panel or battery voltage to a stable 5V for USB device charging in off-grid or portable energy systems.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What input voltages does this DC-DC step-down converter support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This buck converter module accepts a wide input voltage range of 9V to 36V DC, making it compatible with common sources such as 12V car batteries, 24V truck systems, and solar panel outputs up to 36V.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use this converter to charge two devices at the same time?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! 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The wide 9–36V input range makes this converter an excellent fit for solar power setups, allowing you to step down solar panel or battery voltage to a stable 5V for USB device charging in off-grid or portable energy systems.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"DC-DC Step-Down Converter 9–36V to 5V 3A Dual USB Power Module\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/products\/dc-dc-step-down-converter-9-36v-to-5v-3a-dual-usb-power-module\"}]}\u003c\/script\u003e","brand":"Axl","offers":[{"title":"onesize","offer_id":44169037545559,"sku":"14:350850#onesize","price":11.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/6008\/7383\/files\/S2a4adff59ce84eb28757531ec9264ab4J.webp?v=1786793824","url":"https:\/\/axlcustomersupport.com\/products\/dc-dc-step-down-converter-9-36v-to-5v-3a-dual-usb-power-module","provider":"Axl","version":"1.0","type":"link"}