{"product_id":"d3806-boost-buck-cc-cv-power-converter-module","title":"D3806 0-38V 6A Out Step Up \/ Step Down Boost\/Buck CC\/CV Power Converter Module w\/ Meter","description":"\u003chr\u003e\n\u003ch2\u003e📋 Overview\u003c\/h2\u003e\n\u003cp\u003eThe D3806 is a digitally controlled DC-DC power converter module that can both step up (boost) and step down (buck) voltage. It accepts an input of 10–40V DC and provides an adjustable output from 0–38V DC at up to 6A, making it a versatile all-in-one solution whether your input voltage is higher, lower, or equal to your desired output.\u003c\/p\u003e\n\u003cp\u003eThe module operates in both Constant Voltage (CV) and Constant Current (CC) modes with a built-in 4-digit LED display showing real-time output voltage, current, power (watts), and cumulative capacity (amp-hours). Three front-panel buttons give you full control over all settings, and 10 memory presets let you save and recall your favorite voltage\/current combinations instantly.\u003c\/p\u003e\n\u003cp\u003eWhether you're building a benchtop power supply, charging batteries, driving LEDs, or regulating solar panel output, the D3806 handles it all in one compact, easy-to-use module.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e⭐ Key Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost and Buck in One Module\u003c\/strong\u003e — Steps voltage up or down from a single input, eliminating the need for separate converters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Input Range\u003c\/strong\u003e — Accepts 10V to 40V DC input via screw terminals or DC barrel jack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Output\u003c\/strong\u003e — 0V to 38V DC output at up to 6A with fine digital control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCC\/CV Modes\u003c\/strong\u003e — Constant Voltage and Constant Current with LED indicators showing the active mode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-In Digital Display\u003c\/strong\u003e — 4-digit LED shows voltage, current, power (W), and capacity (Ah) in real time\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 Memory Presets\u003c\/strong\u003e — Save and recall up to 10 voltage\/current parameter sets (M0–M9)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree Special Functions\u003c\/strong\u003e — Auto-output on power-up, parameter save\/recall, and auto-rotate display\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple Three-Button Interface\u003c\/strong\u003e — SET, OK, and ▲\/▼ buttons for intuitive operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFan Header\u003c\/strong\u003e — +12V 2-pin fan connector for active cooling under heavy loads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Input Options\u003c\/strong\u003e — Screw terminals for high-current applications plus a convenient DC barrel jack\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e📊 Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 10V – 40V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Input Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8A\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 0V – 38V (adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0A – 6A (adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCC (Constant Current) \/ CV (Constant Voltage)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-digit LED (voltage, current, power, capacity)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMemory Presets\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 groups (M0–M9)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Connector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eScrew terminals + DC barrel jack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Connector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eScrew terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFan Header\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+12V DC, 2-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBoard Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 100 × 80 × 35 mm (3.94 x 3.15 x 1.38 inches) L × W × H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 180g (6.4 Ounces)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ Important:\u003c\/strong\u003e Input voltage must be between 10V and 40V DC. Do not exceed 40V input or 8A input current. Never reverse the input polarity — this will permanently damage the module.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003ch2\u003e📌 Module Layout\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e+Vin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePositive DC input (screw terminal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-Vin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNegative DC input (screw terminal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDC Jack\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC barrel power socket (alternative input)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFan Header\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+12V fan interface (2-pin connector)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e+Vout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePositive DC output (screw terminal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-Vout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNegative DC output (screw terminal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-digit LED display with OUT, CV, and CC status indicators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eButtons\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThree operation buttons: SET, OK, ▲\/▼\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003e🔌 Wiring \/ Connections\u003c\/h2\u003e\n\u003ch3\u003eInput Wiring\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eConnect your DC power source positive (+) wire to the \u003cstrong\u003e+Vin\u003c\/strong\u003e screw terminal\u003c\/li\u003e\n\u003cli\u003eConnect your DC power source negative (−) wire to the \u003cstrong\u003e-Vin\u003c\/strong\u003e screw terminal\u003c\/li\u003e\n\u003cli\u003eAlternatively, plug a compatible DC barrel plug into the \u003cstrong\u003eDC Jack\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eOutput Wiring\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eConnect your load's positive (+) wire to the \u003cstrong\u003e+Vout\u003c\/strong\u003e screw terminal\u003c\/li\u003e\n\u003cli\u003eConnect your load's negative (−) wire to the \u003cstrong\u003e-Vout\u003c\/strong\u003e screw terminal\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eFan (Optional)\u003c\/h3\u003e\n\u003cp\u003eFor high-power operation, connect a 12V DC cooling fan to the 2-pin \u003cstrong\u003eFan Header\u003c\/strong\u003e. Recommended when operating above 50W for extended periods.\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ Warning:\u003c\/strong\u003e Use either the screw terminals or the DC barrel jack for input — do not use both simultaneously. Double-check polarity before applying power. There is no built-in reverse polarity protection.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003ch2\u003e🚀 Getting Started\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eConnect your input power source (10–40V DC) to the input terminals — the LED display will light up\u003c\/li\u003e\n\u003cli\u003ePress ▲\/▼ to set your desired output voltage (displayed as \u003cstrong\u003e00.00\u003c\/strong\u003e)\u003c\/li\u003e\n\u003cli\u003ePress \u003cstrong\u003eSET\u003c\/strong\u003e to switch to current mode, then use ▲\/▼ to set your current limit (displayed as \u003cstrong\u003e0.000\u003c\/strong\u003e)\u003c\/li\u003e\n\u003cli\u003ePress \u003cstrong\u003eOK\u003c\/strong\u003e to enable the output — the OUT indicator will light up along with CV or CC\u003c\/li\u003e\n\u003cli\u003eWhile running, short-press \u003cstrong\u003eOK\u003c\/strong\u003e to cycle the display between voltage, current, power, and capacity\u003c\/li\u003e\n\u003cli\u003ePress \u003cstrong\u003eSET\u003c\/strong\u003e to turn off the output\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cstrong\u003e💡 Tip:\u003c\/strong\u003e The voltage display uses two decimal places (e.g., 12.50 = 12.50V) while the current display uses three decimal places (e.g., 1.500 = 1.500A). This is how you can tell which parameter you're viewing at a glance. See our complete User Guide for detailed instructions on memory presets and special functions.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003ch2\u003e🎯 Typical Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIY Benchtop Power Supply\u003c\/strong\u003e — Pair with a 12V or 24V adapter for an adjustable lab supply\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Charging\u003c\/strong\u003e — Use CC\/CV mode to charge lithium, lead-acid, or NiMH batteries\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Driver\u003c\/strong\u003e — Set constant current to safely drive high-power LEDs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolar Power Systems\u003c\/strong\u003e — Regulate solar panel output to a stable voltage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectronics Testing\u003c\/strong\u003e — Provide precise, adjustable voltage and current for testing circuits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Conversion\u003c\/strong\u003e — Step up a 12V car battery to 24V, or step down 24V to 5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePortable Power Systems\u003c\/strong\u003e — Regulate battery packs for field equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e⚠️ Important Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo reverse polarity protection.\u003c\/strong\u003e Connecting the input with reversed polarity will permanently damage the module.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput voltage range is strict.\u003c\/strong\u003e The input must be between 10V and 40V. Voltages below 10V may cause unstable operation; voltages above 40V may damage the module.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum input current is 8A.\u003c\/strong\u003e When boosting voltage, the input current will be higher than the output current. Ensure your power source and wiring can handle this.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot isolated.\u003c\/strong\u003e The input and output share a common ground. This module does not provide galvanic isolation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse adequate cooling.\u003c\/strong\u003e At high power levels, the module generates significant heat. Use the fan header for active cooling or ensure adequate ventilation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge step-up ratios reduce available current.\u003c\/strong\u003e Very large boost ratios (e.g., 12V in → 38V out) will reduce the maximum output current. Plan your input voltage accordingly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e📦 What's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1x D3806 DC-DC Boost\/Buck CC\/CV Power Converter Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e📄 Documentation \u0026amp; Resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/blogs\/learn\/d3806-boost-buck-cc-cv-power-converter-module-user-guide\" target=\"_blank\" title=\"D3806 0V-38V DC-DC Boost Buck CC\/CV Power Converter Module User Guide\" rel=\"noopener\"\u003eD3806 User Guide\u003c\/a\u003e — Complete setup instructions, display guide, memory presets, special functions, and troubleshooting\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/learn\/tagged\/boost-buck-converters\" target=\"_blank\" title=\"All Boost Buck Converter User Guides\" rel=\"noopener\"\u003eAll Boost\/Buck Converter User Guides\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cem\u003eSold and supported by\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noopener noreferrer\" href=\"https:\/\/envistiamall.com\/\" target=\"_blank\"\u003eEnvistia Mall\u003c\/a\u003e. Ships from the USA. For wiring diagrams, setup instructions, and troubleshooting, see the User Guide. The manufacturer and Envistia LLC (dba Envistia Mall) are not responsible for any damages or losses resulting from the use of this product. Always follow proper electrical safety practices when working with electronic components. Specifications are based on manufacturer data and are subject to change without notice.\u003c\/em\u003e\u003c\/p\u003e","brand":"Envistia","offers":[{"title":"Default Title","offer_id":12617464479828,"sku":"EM-POWER-0027","price":23.49,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1641\/0911\/products\/d3806-10-40vdc-in-0-38vdc-out-step-up-step-down-boostbuck-cccv-power-converter-module-w-meter-245145.jpg?v=1594221427","url":"https:\/\/envistiamall.com\/products\/d3806-boost-buck-cc-cv-power-converter-module","provider":"Envistia Mall","version":"1.0","type":"link"}