{"product_id":"lm2596-buck-converter-step-down-voltage-regulator-module","title":"LM2596 Buck Converter | Step-Down Voltage Regulator Module","description":"\u003ch1\u003eLM2596 Buck Converter\u003c\/h1\u003e\n\u003cp\u003eThe LM2596 Buck Converter is a step-down DC-DC module built around the LM2596 switching regulator IC. It efficiently reduces a higher input voltage to a lower, adjustable output voltage, making it a staple for prototyping and battery-powered projects. The module delivers up to 3A of stable current, with an output range you can tune from 1.25V to 37V using the onboard trimmer.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e4.5V – 40V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOutput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e1.25V – 37V (adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMaximum Output Current\u003c\/td\u003e\n\u003ctd\u003e3A (requires adequate heatsinking)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eEfficiency\u003c\/td\u003e\n\u003ctd\u003eUp to 92%\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSwitching Frequency\u003c\/td\u003e\n\u003ctd\u003e150 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBuilt-in Protections\u003c\/td\u003e\n\u003ctd\u003eThermal shutdown, current limiting\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-variable-bench-power-supply\"\u003eVariable bench power supply from an old laptop adapter\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003ePower Arduino or ESP32 from a 12V lead-acid battery\u003c\/li\u003e\n  \u003cli\u003eStep down 24V to 5V for industrial sensors and relays\u003c\/li\u003e\n  \u003cli\u003eCharge a Li-ion battery with constant voltage termination\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThe module accepts any DC source between 4.5V and 40V. It can power most 5V and 3.3V development boards (Arduino Uno, Raspberry Pi, ESP8266) when set to the correct output. It pairs well with higher-voltage battery packs, solar panels, and automotive electrical systems. Ensure the input voltage is always at least 2V higher than the desired output for stable regulation.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eSolder input wires to IN+ and IN – terminals, observing polarity. Connect your load to OUT+ and OUT –. Use a multimeter to adjust the brass potentiometer before attaching sensitive electronics. For loads above 1.5A, secure a small heatsink to the IC and keep the module in free air.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino?\u003c\/summary\u003e\u003cp\u003eYes. Set the output to 5V (or 3.3V for 3.3V boards) and connect to the Vin pin or barrel jack. Always verify the voltage with a multimeter first.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the maximum current I can pull?\u003c\/summary\u003e\u003cp\u003e3A, but only if you add a heatsink and ensure adequate ventilation. At 2A continuous without a heatsink, the module may overheat and shut down.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I adjust the output voltage?\u003c\/summary\u003e\u003cp\u003eTurn the small brass potentiometer on the board clockwise to increase voltage, counterclockwise to decrease. Use a voltmeter on the output terminals while tuning.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445136613741,"sku":"CDN-0842","price":95.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_0f58cebc-7202-4520-a792-a6414a2d9505.jpg?v=1781513513","url":"https:\/\/compoden.com\/products\/lm2596-buck-converter-step-down-voltage-regulator-module","provider":"Compoden","version":"1.0","type":"link"}