{"product_id":"80w-dc-dc-boost-buck-converter-auto-step-up-step-down-voltage-regulator-module","title":"80W DC-DC Boost Buck Converter Module – Auto Step-Up \u0026 Step-Down","description":"\n\u003ch2\u003e80W DC-DC Auto Boost Buck Converter – Adjustable Voltage Regulator Module\u003c\/h2\u003e\n\u003cp\u003eKeep your electronics running at exactly the right voltage with this high-efficiency \u003cstrong\u003e80W DC-DC Auto Step-Up \u0026amp; Step-Down Power Supply Module\u003c\/strong\u003e. Whether your input voltage is above or below your target output, this smart converter automatically adjusts — making it ideal for automotive, DIY electronics, battery-powered projects, and laboratory bench use.\u003c\/p\u003e\n\n\u003cp\u003eHoused in a premium aluminum enclosure and delivering up to \u003cstrong\u003e91% conversion efficiency\u003c\/strong\u003e, this module features a built-in voltage display, overheat protection, and easy one-button calibration. Stabilize power to 12V in a vehicle, power a laptop from a solar array, or regulate a custom electronics bench — all with one compact, reliable board.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuto Step-Up \u0026amp; Step-Down:\u003c\/strong\u003e Output stays stable regardless of whether input is higher or lower — true buck-boost operation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Input Range:\u003c\/strong\u003e DC 4.5V – 30V input; DC 0.8V – 33V adjustable output\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Power Output:\u003c\/strong\u003e Up to 80W continuous (5A max output current)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e91% Conversion Efficiency:\u003c\/strong\u003e Measured at 12V input \/ 19V output \/ 2A load\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-In Voltage Display:\u003c\/strong\u003e Toggle between input (red indicator) and output (green indicator) voltage readings with a quick button press\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverheat Protection:\u003c\/strong\u003e Automatically protects the module during heavy loads\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAluminum Housing:\u003c\/strong\u003e High-grade enclosure for improved heat dissipation and durability\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisplay On\/Off Control:\u003c\/strong\u003e Hold button 1–2 seconds to toggle display for power saving\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCalibration Mode:\u003c\/strong\u003e Hold button 2+ seconds to enter voltage reference calibration for both input and output\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\u003eDC 4.5V – 30V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 0.8V – 33V (adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Output Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e80W\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConversion Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 91%\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModule Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e78 × 48 × 22 mm\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 China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eButton Function Guide\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuick Press (\u0026lt;0.5 sec):\u003c\/strong\u003e Toggle display between input voltage (red light) and output voltage (green light)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHold 1–2 seconds:\u003c\/strong\u003e Turn display off; press again to turn back on\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHold 2+ seconds:\u003c\/strong\u003e Enter voltage reference calibration mode\n    \u003cul\u003e\n      \u003cli\u003eRed light blinks = adjusting input reference (default: 3.33V)\u003c\/li\u003e\n      \u003cli\u003eHold 1+ sec to save and proceed to output reference (green light blinks)\u003c\/li\u003e\n      \u003cli\u003eHold 1+ sec to save and return to normal display\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Usage Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDo \u003cstrong\u003enot\u003c\/strong\u003e reverse the positive and negative terminals — incorrect polarity will damage the module\u003c\/li\u003e\n  \u003cli\u003eFor continuous 80W operation, add external heatsinking or active cooling; natural convection supports approximately 60W sustained load\u003c\/li\u003e\n  \u003cli\u003eAudible inductor noise under high-current conditions is normal and not a defect\u003c\/li\u003e\n  \u003cli\u003eAllow 1–3 cm measurement tolerance and minor color variation from images due to screen differences\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× DC-DC Boost Buck Power Supply Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor general safe practices when working with DC power electronics, refer to the \u003ca href=\"https:\/\/www.osha.gov\/electrical\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eOSHA Electrical Safety Guidelines\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the difference between a boost-buck (SEPIC) converter and a regular buck or boost converter?\u003c\/h4\u003e\n\u003cp\u003eA: A standard buck converter can only step voltage \u003cem\u003edown\u003c\/em\u003e, and a standard boost converter can only step voltage \u003cem\u003eup\u003c\/em\u003e. This auto step-up and step-down module does both automatically — it continuously monitors the input and adjusts to maintain your set output voltage whether the input is higher or lower. This makes it ideal for battery-powered systems where voltage fluctuates during discharge.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I use this module in my car or truck to stabilize voltage for sensitive electronics?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. Automotive electrical systems typically vary between 11V and 14.8V depending on engine load and alternator output. This module can be set to a stable 12V output, protecting sensitive accessories from voltage spikes or drops. Just ensure your load does not exceed 5A (or 80W) and that polarity is connected correctly.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I calibrate the voltage display if it reads inaccurately?\u003c\/h4\u003e\n\u003cp\u003eA: Hold the button for more than 2 seconds to enter calibration mode. The red LED will blink, indicating input voltage reference adjustment. Use a known-accurate multimeter to check the actual voltage and adjust the reference value accordingly — increase the reference if the display reads low, and decrease it if it reads high. After saving input calibration (hold 1+ sec), the green LED will blink for output calibration. Save again to return to normal mode.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does this module need external cooling for high-power use?\u003c\/h4\u003e\n\u003cp\u003eA: The aluminum housing provides natural convection cooling sufficient for loads up to approximately 60W in well-ventilated environments. For sustained 80W operation, it is strongly recommended to attach an external heatsink or add a small active cooling fan to prevent the onboard overheat protection from triggering.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the difference between a boost-buck (SEPIC) converter and a regular buck or boost converter?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A standard buck converter can only step voltage down, and a standard boost converter can only step voltage up. This auto step-up and step-down module does both automatically — it continuously monitors the input and adjusts to maintain your set output voltage whether the input is higher or lower. This makes it ideal for battery-powered systems where voltage fluctuates during discharge.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use this module in my car or truck to stabilize voltage for sensitive electronics?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. Automotive electrical systems typically vary between 11V and 14.8V depending on engine load and alternator output. This module can be set to a stable 12V output, protecting sensitive accessories from voltage spikes or drops. Just ensure your load does not exceed 5A (or 80W) and that polarity is connected correctly.\"}}, {\"@type\": \"Question\", \"name\": \"How do I calibrate the voltage display if it reads inaccurately?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Hold the button for more than 2 seconds to enter calibration mode. The red LED will blink, indicating input voltage reference adjustment. Use a known-accurate multimeter to check the actual voltage and adjust the reference value accordingly — increase the reference if the display reads low, and decrease it if it reads high. After saving input calibration (hold 1+ sec), the green LED will blink for output calibration. Save again to return to normal mode.\"}}, {\"@type\": \"Question\", \"name\": \"Does this module need external cooling for high-power use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The aluminum housing provides natural convection cooling sufficient for loads up to approximately 60W in well-ventilated environments. For sustained 80W operation, it is strongly recommended to attach an external heatsink or add a small active cooling fan to prevent the onboard overheat protection from triggering.\"}}]}\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:\/\/kujrmc-0q.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Electronics \u0026 Tech\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/collections\/electronics-tech\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"80W DC-DC Boost Buck Converter Module – Auto Step-Up \u0026 Step-Down\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/products\/80w-dc-dc-boost-buck-converter-auto-step-up-step-down-voltage-regulator-module\"}]}\u003c\/script\u003e","brand":"Vue","offers":[{"title":"Default Title","offer_id":48747752915136,"sku":"\u003cnone\u003e","price":51.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/9338\/7968\/files\/S06054d3709c84ba886c323f7a4a54643I.webp?v=1786201164","url":"https:\/\/vueselect.com\/products\/80w-dc-dc-boost-buck-converter-auto-step-up-step-down-voltage-regulator-module","provider":"Vue","version":"1.0","type":"link"}