{"product_id":"dc-dc-step-down-converter-9v-36v-to-5v-3a-dual-usb-power-module","title":"DC-DC Step-Down Converter 9V–36V to 5V 3A Dual USB Power Module","description":"\u003ch2\u003eDC-DC Step-Down Power Module with Dual USB Output\u003c\/h2\u003e\n\u003cp\u003ePower your USB devices anywhere — in your car, off-grid solar setup, or DIY electronics project — with this compact \u003cstrong\u003eDC-DC step-down (buck) converter\u003c\/strong\u003e. Featuring a wide input voltage range of \u003cstrong\u003e9V to 36V\u003c\/strong\u003e and a regulated \u003cstrong\u003e5V \/ 3A dual USB output\u003c\/strong\u003e, this module handles everything from 12V automotive systems to 24V and 36V solar panels with ease.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e 9V – 36V DC (compatible with 9V, 12V, 24V, 36V systems)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Voltage:\u003c\/strong\u003e 5V DC (regulated, load end ~5V accounting for line loss)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Output Current:\u003c\/strong\u003e 3A (stable continuous output: 2A without heatsink)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual USB Ports:\u003c\/strong\u003e Charge two devices simultaneously\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoard Dimensions:\u003c\/strong\u003e 5 × 3.5 cm — ultra-compact for easy integration\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e 1 × DC-DC Step-Down Converter Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose This Power Module?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eWide voltage compatibility\u003c\/strong\u003e — works with 9V, 12V, 24V, and 36V input sources\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eDual USB charging ports\u003c\/strong\u003e — charge phones, tablets, or other USB devices simultaneously\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eStable regulated 5V output\u003c\/strong\u003e — protects your devices from voltage spikes\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003ePerfect for car, solar, and DIY projects\u003c\/strong\u003e — versatile use cases for makers and hobbyists\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eCompact form factor\u003c\/strong\u003e — easy to mount or embed in enclosures\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal Use Cases\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCar and vehicle 12V\/24V USB charging solutions\u003c\/li\u003e\n  \u003cli\u003eSolar panel power systems (12V, 24V, 36V)\u003c\/li\u003e\n  \u003cli\u003eDIY electronics and maker projects\u003c\/li\u003e\n  \u003cli\u003eRobotics, Arduino, and Raspberry Pi power supplies\u003c\/li\u003e\n  \u003cli\u003eOff-grid and portable power setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Safety Notes\u003c\/h3\u003e\n\u003cp\u003e⚠️ \u003cstrong\u003eNote 1:\u003c\/strong\u003e Observe correct polarity (positive\/negative). Do NOT exceed 36V input — exceeding this limit may permanently damage the chip.\u003c\/p\u003e\n\u003cp\u003e⚠️ \u003cstrong\u003eNote 2:\u003c\/strong\u003e While the module is powered and operating, do NOT touch the sampling resistors or IC components on the circuit board — doing so may cause sudden voltage fluctuations that could damage connected equipment.\u003c\/p\u003e\n\u003cp\u003e⚠️ For continuous output above 2A, a heatsink is strongly recommended to maintain stable performance and component longevity.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eExplore More from Our Store\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eLooking for more DIY electronics tools? Check out our \u003ca href=\"\/products\/1-percent-better-every-day-motivational-canvas-wall-poster-inspirational-quote\"\u003e\"1% Better Every Day\" Motivational Canvas Poster\u003c\/a\u003e to keep your workspace inspired.\u003c\/li\u003e\n  \u003cli\u003eBrowse our full range of \u003ca href=\"\/products\/everything-is-fine-trust-government-mens-graphic-t-shirt-cotton\"\u003emaker-friendly gear and accessories\u003c\/a\u003e for your projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eExternal Resources\u003c\/h3\u003e\n\u003cp\u003eFor guidance on electronics safety and consumer product standards, visit the U.S. Consumer Product Safety Commission (CPSC). For electrical and measurement standards relevant to power modules, see \u003ca href=\"https:\/\/www.nist.gov\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eNIST – National Institute of Standards and Technology\u003c\/a\u003e.\u003c\/p\u003e\n\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 module accepts a wide input voltage range of \u003cstrong\u003e9V to 36V DC\u003c\/strong\u003e, making it compatible with 9V, 12V, 24V, and 36V power sources such as car batteries, solar panels, and DC power supplies. Do not exceed 36V input to avoid chip damage.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How much current can the dual USB ports output?\u003c\/h4\u003e\n\u003cp\u003eA: The module supports a maximum output current of \u003cstrong\u003e3A total\u003c\/strong\u003e. Without an attached heatsink, the stable continuous output is limited to \u003cstrong\u003e2A\u003c\/strong\u003e. For sustained loads above 2A, adding a heatsink is strongly recommended.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I use this module for solar charging applications?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! This step-down converter is well-suited for solar power systems operating at 12V, 24V, or 36V. It steps the voltage down to a stable 5V USB output, allowing you to charge phones, tablets, and other USB devices directly from your solar setup.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this module safe to use in a car?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. Standard 12V and 24V automotive electrical systems fall well within the 9V–36V input range of this module. It provides a stable, regulated 5V output through dual USB ports — perfect for in-vehicle USB charging of multiple devices.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What are the physical dimensions of this power module?\u003c\/h4\u003e\n\u003cp\u003eA: The board measures \u003cstrong\u003e5 cm × 3.5 cm\u003c\/strong\u003e, making it compact enough to integrate into custom enclosures, vehicle dashboards, or DIY electronics projects with minimal space requirements.\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 module accepts a wide input voltage range of 9V to 36V DC, making it compatible with 9V, 12V, 24V, and 36V power sources such as car batteries, solar panels, and DC power supplies. Do not exceed 36V input to avoid chip damage.\"}}, {\"@type\": \"Question\", \"name\": \"How much current can the dual USB ports output?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The module supports a maximum output current of 3A total. Without an attached heatsink, the stable continuous output is limited to 2A. For sustained loads above 2A, adding a heatsink is strongly recommended.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use this module for solar charging applications?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! This step-down converter is well-suited for solar power systems operating at 12V, 24V, or 36V. It steps the voltage down to a stable 5V USB output, allowing you to charge phones, tablets, and other USB devices directly from your solar setup.\"}}, {\"@type\": \"Question\", \"name\": \"Is this module safe to use in a car?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Absolutely. Standard 12V and 24V automotive electrical systems fall well within the 9V–36V input range of this module. 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