{"product_id":"5v-6a-step-down-voltage-regulator-d42v55f5","title":"Pololu 5V 6A Step-Down Voltage Regulator D42V55F5","description":"\u003cdiv class=\"product-copy\"\u003e\n\u003cstyle\u003e\n .product-copy{line-height:1.7;color:#1f2937}\n .product-copy \u003e * + *{margin-top:1rem}\n .product-copy h2{margin:1.4em 0 .6em;color:#111827}\n .product-copy h3{margin:1.1em 0 .5em;color:#111827}\n .product-copy p{margin:0 0 1em}\n .product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n .product-copy li{margin:.35em 0}\n .product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n .product-copy table th,.product-copy table td{border:1px solid #e5e7eb;padding:.7em .8em;text-align:left;vertical-align:top}\n .product-copy table th{background:#f9fafb;width:32%}\n .faq-list{margin:1.2rem 0 1.4rem}\n .faq{border:1px solid #e5e7eb;border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;background:#fafafa}\n .note{background:#f8fafc;border-left:4px solid #2563eb;padding:.85rem 1rem;border-radius:8px}\n \u003c\/style\u003e\n\u003ch2\u003eStable 5V Power for Embedded Builds\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003e5V, 6A Step-Down Voltage Regulator D42V55F5\u003c\/strong\u003e is a compact switching regulator for projects that need a lower and more stable DC rail from a higher input source.\u003c\/p\u003e\n\u003cp\u003eIt is a strong fit for robots, control boxes, battery-powered builds, and embedded systems that need efficient power conversion with less heat than a linear regulator.\u003c\/p\u003e\n\u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Choose a regulator based on your full input-voltage range, startup current, thermal limits, and required headroom. Real output current depends on input voltage, airflow, and temperature.\u003c\/div\u003e\n\u003ch3\u003eWhy you'll love it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWide input range: 5–60V (minimum input depends on dropout under load)\u003c\/li\u003e\n\u003cli\u003eAccurate 5V rail: 5V output with 3% accuracy\u003c\/li\u003e\n\u003cli\u003eHigh current headroom: typical max continuous output current varies with VIN\/thermals (about 5A–8A typical ; listed as 6A typical at 42V in)\u003c\/li\u003e\n\u003cli\u003eEfficient switching design: typically 80–95% efficiency depending on input and load\u003c\/li\u003e\n\u003cli\u003eLow idle draw: \u0026lt; 0.4mA typical no-load quiescent current\u003c\/li\u003e\n\u003cli\u003eEnable + low-power off: optional EN input can disconnect the load and reduce draw to \u0026lt;0.1mA typical\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat you can build\u003c\/h3\u003e\n\u003cp\u003eGreat for powering 5V or 12V rails in robots, controllers, sensor hubs, SBC projects, vehicle electronics, and custom battery systems.\u003c\/p\u003e\n\u003ch3\u003eCompare regulator options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eTopology\u003c\/th\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003cth\u003eMax current\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eS13V20F5\u003c\/td\u003e\n\u003ctd\u003eBuck-Boost\u003c\/td\u003e\n\u003ctd\u003e5 V\u003c\/td\u003e\n\u003ctd\u003e2 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD24V22F5\u003c\/td\u003e\n\u003ctd\u003eBuck\u003c\/td\u003e\n\u003ctd\u003e5 V\u003c\/td\u003e\n\u003ctd\u003e2.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD36V28F5\u003c\/td\u003e\n\u003ctd\u003eBuck\u003c\/td\u003e\n\u003ctd\u003e5 V\u003c\/td\u003e\n\u003ctd\u003e3.2 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD30V30F5\u003c\/td\u003e\n\u003ctd\u003eBuck\u003c\/td\u003e\n\u003ctd\u003e5 V\u003c\/td\u003e\n\u003ctd\u003e3.4 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD24V50F5\u003c\/td\u003e\n\u003ctd\u003eBuck\u003c\/td\u003e\n\u003ctd\u003e5 V\u003c\/td\u003e\n\u003ctd\u003e5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD42V55F5\u003c\/td\u003e\n\u003ctd\u003eBuck\u003c\/td\u003e\n\u003ctd\u003e5 V\u003c\/td\u003e\n\u003ctd\u003e6 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD24V90F5\u003c\/td\u003e\n\u003ctd\u003eBuck\u003c\/td\u003e\n\u003ctd\u003e5 V\u003c\/td\u003e\n\u003ctd\u003e9 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003e5V, 6A Step-Down Voltage Regulator D42V55F5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003ePololu\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eD42V55F5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eDC-DC Step-Down Regulator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTopology\u003c\/th\u003e\n\u003ctd\u003eStep-Down (Buck)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput Voltage\u003c\/th\u003e\n\u003ctd\u003e5 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Current\u003c\/th\u003e\n\u003ctd\u003e6 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating Voltage\u003c\/th\u003e\n\u003ctd\u003e5-60 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupport\u003c\/th\u003e\n\u003ctd\u003eOfficial Pololu product search and support resources linked below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eOfficial resources\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.pololu.com\/search?query=D42V55F5\" target=\"_blank\" rel=\"noopener\"\u003eFind this product on Pololu\u003c\/a\u003e | \u003ca href=\"https:\/\/www.pololu.com\/resources\" target=\"_blank\" rel=\"noopener\"\u003ePololu support and resources\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n\u003cp\u003e1 × 5V, 6A Step-Down Voltage Regulator D42V55F5\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv class=\"faq-list\"\u003e\n\u003cdiv class=\"faq\"\u003e\n\u003cstrong\u003eCan I power a microcontroller with this?\u003c\/strong\u003e\u003cbr\u003eYes, if the regulator’s output voltage and current match your controller and all attached loads.\u003c\/div\u003e\n\u003cdiv class=\"faq\"\u003e\n\u003cstrong\u003eWill it run cool at full load?\u003c\/strong\u003e\u003cbr\u003eIt depends on input voltage, airflow, and load current. Check thermal limits in the official Pololu resources.\u003c\/div\u003e\n\u003cdiv class=\"faq\"\u003e\n\u003cstrong\u003eIs this better than a linear regulator?\u003c\/strong\u003e\u003cbr\u003eFor many builds, yes. Switching regulators are usually more efficient and waste less heat.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Pololu","offers":[{"title":"Default Title","offer_id":52233425748257,"sku":"POL5571","price":2386.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/files\/0J13490.1200.jpg?v=1768894874","url":"https:\/\/circuit.rocks\/products\/5v-6a-step-down-voltage-regulator-d42v55f5","provider":"circuitrocks","version":"1.0","type":"link"}