{"product_id":"dc-6v-40v-to-5v-3a-dual-usb-step-down-converter-module-lm2596-1","title":"DC 6V–40V to 5V 3A Dual USB Step-Down Converter LM2596","description":"\n\u003ch2\u003eDC 6V–40V to 5V 3A Dual USB Step-Down Converter Module (LM2596)\u003c\/h2\u003e\n\u003cp\u003ePower your devices on the go with this compact and highly efficient DC-DC step-down converter module. Featuring dual USB output ports and built on the reliable LM2596 regulator, this module steps down any input voltage between 6V and 40V to a stable 5V at up to 3A — perfect for charging smartphones, MP3 players, tablets, and other USB-powered devices from vehicle batteries, solar panels, or custom DIY power supplies.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\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 6V to 40V DC input — compatible with 12V and 24V systems\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStable 5V Output:\u003c\/strong\u003e Fixed 5V output at up to 3A for reliable USB device charging\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\u003eHigh Efficiency:\u003c\/strong\u003e Up to 92% conversion efficiency minimizes heat and energy waste\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShort Circuit Protection:\u003c\/strong\u003e Built-in protection safeguards connected devices\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e Measures just 59mm × 21mm × 17mm — ideal for embedded DIY projects\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Operating Temperature:\u003c\/strong\u003e Rated from -40°C to +85°C for demanding environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse: collapse;\"\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e6V – 40V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e5V DC (Fixed)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOutput Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e3A (Max)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eSwitching Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e150 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eConversion Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eUp to 92%\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eRed\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e59mm × 21mm × 17mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eRegulator IC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eLM2596\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× DC-DC Step-Down Converter Module with Dual USB Output\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eGreat For DIY Projects \u0026amp; More\u003c\/h3\u003e\n\u003cp\u003eWhether you're building a custom solar charging station, a vehicle-mounted USB hub, or a DIY portable power bank, this step-down module delivers clean, regulated 5V power from a variety of high-voltage DC sources. Its small footprint and wide input voltage range make it one of the most versatile converter modules available for hobbyists and electronics enthusiasts.\u003c\/p\u003e\n\n\u003cp\u003eLooking for other tools and electronics for your projects? Check out our \u003ca href=\"\/products\/1-2-inch-8-piece-hex-short-socket-set-vanadium-steel\"\u003e1\/2\" Drive 8-Piece Hex Short Socket Set – Vanadium Steel\u003c\/a\u003e or explore our \u003ca href=\"\/products\/10-piece-complete-gardening-tool-kit\"\u003e10-Piece Gardening Tool Kit – Iron Head \u0026amp; Plastic Handle\u003c\/a\u003e for more hands-on essentials.\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What input voltage range does this DC-DC step-down converter support?\u003c\/h4\u003e\n\u003cp\u003eA: This LM2596-based step-down converter module accepts a wide input range of 6V to 40V DC, making it compatible with common 12V and 24V vehicle or battery systems, as well as solar panel outputs.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I use this module to charge two devices at the same time?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The module features dual USB output ports, both supplying a stable 5V output. The total combined output current is 3A, so you can split charging between two USB devices simultaneously.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this module safe for sensitive electronics?\u003c\/h4\u003e\n\u003cp\u003eA: This module includes built-in short circuit protection and is built around the proven LM2596 switching regulator, providing a stable and regulated 5V output to keep your connected devices safe during operation.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the size of this step-down converter module?\u003c\/h4\u003e\n\u003cp\u003eA: The module measures 59mm × 21mm × 17mm — a compact form factor that fits easily into custom enclosures, vehicle dashboards, or DIY electronics projects.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What input voltage range does this DC-DC step-down converter support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This LM2596-based step-down converter module accepts a wide input range of 6V to 40V DC, making it compatible with common 12V and 24V vehicle or battery systems, as well as solar panel outputs.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use this module to charge two devices at the same time?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! The module features dual USB output ports, both supplying a stable 5V output. 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