{"id":13788,"date":"2019-08-16T07:00:41","date_gmt":"2019-08-16T06:00:41","guid":{"rendered":"https:\/\/www.engineernewsnetwork.com\/blog\/?p=13788"},"modified":"2019-08-14T11:01:44","modified_gmt":"2019-08-14T10:01:44","slug":"non-isolated-buck-step-down-power-switchers","status":"publish","type":"post","link":"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/","title":{"rendered":"Non-isolated buck (step-down) power switchers"},"content":{"rendered":"\n<p>Diodes Incorporated announces the <strong><a href=\"https:\/\/www.diodes.com\/part\/AP3917\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"AP3917 (opens in a new tab)\">AP3917<\/a><\/strong> family of universal AC-DC, non-isolated buck (step-down) power switchers for low-power applications, such as small appliances and IoT endpoints powered by an offline supply. <\/p>\n\n\n\n<p>Family members include the AP3917B (170mA nominal load), AP3917C (270mA), and AP3917D (370mA).&nbsp;<\/p>\n\n\n\n<p>The need for direct, non-isolated AC-DC conversion in a small form factor, with high levels of efficiency and low standby current, is increasing due to the proliferation of small household, office, and industrial appliances that operate as standalone devices or as part of the IoT.&nbsp;<\/p>\n\n\n\n<p>The AP3917 family of buck switchers is designed to provide highly efficient, offline power conversion for light-load applications. Discontinuous and continuous conduction modes are both supported.&nbsp;<\/p>\n\n\n\n<p>The AP3917 buck switcher can convert a full-wave rectified, AC input voltage between 85VAC and 265VAC to a nominal 8.0V DC output. Its non-isolated design requires no external transformer and very few external components, saving space and BoM cost.<\/p>\n\n\n\n<p>With a no-load power consumption of less than 30mW, the AP3917 buck switchers are particularly suitable for small appliances that operate in standby mode for prolonged periods when connected to an AC outlet. Its low-power credentials and small solution size also make the AP3917 appropriate for IoT devices that are always connected but not always active.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Diodes Incorporated announces the AP3917 family of universal AC-DC, non-isolated buck (step-down) power switchers for low-power applications, such as small appliances and IoT endpoints powered by an offline supply. Family members include the AP3917B (170mA nominal load), AP3917C (270mA), and AP3917D (370mA).&nbsp; The need for direct, non-isolated AC-DC conversion in a small form factor, with &hellip;<\/p>\n","protected":false},"author":1,"featured_media":13789,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[104],"tags":[7006,906],"class_list":["post-13788","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-electronics","tag-buck-switchers","tag-diodes"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Non-isolated buck (step-down) power switchers - Engineer News Network<\/title>\n<meta name=\"description\" content=\"Diodes Incorporated announces the AP3917 family of universal AC-DC, non-isolated buck (step-down) power switchers for low-power applications, such as small appliances and IoT endpoints powered by an offline supply\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Non-isolated buck (step-down) power switchers - Engineer News Network\" \/>\n<meta property=\"og:description\" content=\"Diodes Incorporated announces the AP3917 family of universal AC-DC, non-isolated buck (step-down) power switchers for low-power applications, such as small appliances and IoT endpoints powered by an offline supply\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/\" \/>\n<meta property=\"og:site_name\" content=\"Engineer News Network\" \/>\n<meta property=\"article:published_time\" content=\"2019-08-16T06:00:41+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2019\/08\/DIO7195_MR_Image-AP3917.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"900\" \/>\n\t<meta property=\"og:image:height\" content=\"690\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\/\/www.engineernewsnetwork.com\/blog\/#\/schema\/person\/4477342aea8e299c6a21761e513ea8e1\"},\"headline\":\"Non-isolated buck (step-down) power switchers\",\"datePublished\":\"2019-08-16T06:00:41+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/\"},\"wordCount\":219,\"image\":{\"@id\":\"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2019\/08\/DIO7195_MR_Image-AP3917.jpg\",\"keywords\":[\"Buck Switchers\",\"Diodes\"],\"articleSection\":[\"Electronics\"],\"inLanguage\":\"en-GB\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/\",\"url\":\"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/\",\"name\":\"Non-isolated buck (step-down) power switchers - Engineer News Network\",\"isPartOf\":{\"@id\":\"https:\/\/www.engineernewsnetwork.com\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2019\/08\/DIO7195_MR_Image-AP3917.jpg\",\"datePublished\":\"2019-08-16T06:00:41+00:00\",\"author\":{\"@id\":\"https:\/\/www.engineernewsnetwork.com\/blog\/#\/schema\/person\/4477342aea8e299c6a21761e513ea8e1\"},\"description\":\"Diodes Incorporated announces the AP3917 family of universal AC-DC, non-isolated buck (step-down) power switchers for low-power applications, such as small appliances and IoT endpoints powered by an offline supply\",\"breadcrumb\":{\"@id\":\"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/#primaryimage\",\"url\":\"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2019\/08\/DIO7195_MR_Image-AP3917.jpg\",\"contentUrl\":\"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2019\/08\/DIO7195_MR_Image-AP3917.jpg\",\"width\":900,\"height\":690,\"caption\":\"The AP3917 buck switcher can convert a full-wave rectified, AC input voltage between 85VAC and 265VAC to a nominal 8.0V DC output\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.engineernewsnetwork.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Non-isolated buck (step-down) power switchers\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.engineernewsnetwork.com\/blog\/#website\",\"url\":\"https:\/\/www.engineernewsnetwork.com\/blog\/\",\"name\":\"Engineer News Network\",\"description\":\"The ultimate online news and information resource for today's engineer\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.engineernewsnetwork.com\/blog\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.engineernewsnetwork.com\/blog\/#\/schema\/person\/4477342aea8e299c6a21761e513ea8e1\",\"name\":\"admin\",\"url\":\"https:\/\/www.engineernewsnetwork.com\/blog\/author\/admin\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Non-isolated buck (step-down) power switchers - Engineer News Network","description":"Diodes Incorporated announces the AP3917 family of universal AC-DC, non-isolated buck (step-down) power switchers for low-power applications, such as small appliances and IoT endpoints powered by an offline supply","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/","og_locale":"en_GB","og_type":"article","og_title":"Non-isolated buck (step-down) power switchers - Engineer News Network","og_description":"Diodes Incorporated announces the AP3917 family of universal AC-DC, non-isolated buck (step-down) power switchers for low-power applications, such as small appliances and IoT endpoints powered by an offline supply","og_url":"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/","og_site_name":"Engineer News Network","article_published_time":"2019-08-16T06:00:41+00:00","og_image":[{"width":900,"height":690,"url":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2019\/08\/DIO7195_MR_Image-AP3917.jpg","type":"image\/jpeg"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"Written by":"admin","Estimated reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/#article","isPartOf":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/"},"author":{"name":"admin","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/#\/schema\/person\/4477342aea8e299c6a21761e513ea8e1"},"headline":"Non-isolated buck (step-down) power switchers","datePublished":"2019-08-16T06:00:41+00:00","mainEntityOfPage":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/"},"wordCount":219,"image":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/#primaryimage"},"thumbnailUrl":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2019\/08\/DIO7195_MR_Image-AP3917.jpg","keywords":["Buck Switchers","Diodes"],"articleSection":["Electronics"],"inLanguage":"en-GB"},{"@type":"WebPage","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/","url":"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/","name":"Non-isolated buck (step-down) power switchers - Engineer News Network","isPartOf":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/#primaryimage"},"image":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/#primaryimage"},"thumbnailUrl":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2019\/08\/DIO7195_MR_Image-AP3917.jpg","datePublished":"2019-08-16T06:00:41+00:00","author":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/#\/schema\/person\/4477342aea8e299c6a21761e513ea8e1"},"description":"Diodes Incorporated announces the AP3917 family of universal AC-DC, non-isolated buck (step-down) power switchers for low-power applications, such as small appliances and IoT endpoints powered by an offline supply","breadcrumb":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/"]}]},{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/#primaryimage","url":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2019\/08\/DIO7195_MR_Image-AP3917.jpg","contentUrl":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2019\/08\/DIO7195_MR_Image-AP3917.jpg","width":900,"height":690,"caption":"The AP3917 buck switcher can convert a full-wave rectified, AC input voltage between 85VAC and 265VAC to a nominal 8.0V DC output"},{"@type":"BreadcrumbList","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-step-down-power-switchers\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.engineernewsnetwork.com\/blog\/"},{"@type":"ListItem","position":2,"name":"Non-isolated buck (step-down) power switchers"}]},{"@type":"WebSite","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/#website","url":"https:\/\/www.engineernewsnetwork.com\/blog\/","name":"Engineer News Network","description":"The ultimate online news and information resource for today's engineer","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.engineernewsnetwork.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-GB"},{"@type":"Person","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/#\/schema\/person\/4477342aea8e299c6a21761e513ea8e1","name":"admin","url":"https:\/\/www.engineernewsnetwork.com\/blog\/author\/admin\/"}]}},"_links":{"self":[{"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/posts\/13788","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/comments?post=13788"}],"version-history":[{"count":1,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/posts\/13788\/revisions"}],"predecessor-version":[{"id":13790,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/posts\/13788\/revisions\/13790"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/media\/13789"}],"wp:attachment":[{"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/media?parent=13788"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/categories?post=13788"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/tags?post=13788"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}