{"product_id":"5v-3-4a-step-down-voltage-regulator-d30v30f5","title":"Pololu 5V 3.4A Step-Down Voltage Regulator D30V30F5","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, 3.4A Step-Down Voltage Regulator D30V30F5\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\u003eHigh input voltage range: powers 5V electronics from common higher-voltage sources (VIN must stay above 5V; minimum depends on dropout)\u003c\/li\u003e\n\u003cli\u003eStrong output capability: 3.4A typical maximum continuous current (thermally dependent)\u003c\/li\u003e\n\u003cli\u003eEfficient and compact: typical 80–95% efficiency helps reduce heat and extend battery life\u003c\/li\u003e\n\u003cli\u003eProject-safe protections: reverse-voltage protection, input under-voltage lockout, over-current\/short-circuit protection, thermal…\u003c\/li\u003e\n\u003cli\u003eEnable control: use the EN pin to shut the regulator off (drops quiescent current significantly when disabled)\u003c\/li\u003e\n\u003cli\u003eMuch more efficient than 7805-style linear regulation\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\u003eS13V10F5\u003c\/td\u003e\n\u003ctd\u003eBuck-Boost\u003c\/td\u003e\n\u003ctd\u003e5 V\u003c\/td\u003e\n\u003ctd\u003e1 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD24V10F5\u003c\/td\u003e\n\u003ctd\u003eBuck\u003c\/td\u003e\n\u003ctd\u003e5 V\u003c\/td\u003e\n\u003ctd\u003e1 A\u003c\/td\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\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, 3.4A Step-Down Voltage Regulator D30V30F5\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\u003eD30V30F5\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\u003e3.4 A\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=D30V30F5\" 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, 3.4A Step-Down Voltage Regulator D30V30F5\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":52233145057569,"sku":"POL4892","price":1490.0,"currency_code":"PHP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/files\/0J12278.1200.jpg?v=1768888354","url":"https:\/\/circuit.rocks\/products\/5v-3-4a-step-down-voltage-regulator-d30v30f5","provider":"circuitrocks","version":"1.0","type":"link"}