AP63357Q<\/a><\/strong> are 3.5A converters with an input voltage range of 3.8V to 32V. Leveraging peak current mode control, as well as high-side and low-side power MOSFETs on-chip, the converters minimise external components to reduce bill of materials (BOM) costs and board size.<\/p>\n\n\n\nBoth devices have a Power Good indicator with an internal 5M\u03a9 pull-up resistor useful for power sequencing. To further aid sequencing, their enable pin has accurate voltage thresholds, which allows adjustment of the input voltage device power-on and undervoltage lockout (UVLO). The high-voltage capability of the EN pin allows direct connection to VIN to simplify the auto-start of the device. When disabled, the converter draws only 0.6\u00b5A shutdown current typical.<\/p>\n\n\n\n
Their proprietary gate-driver scheme ensures clean switching transitions while preventing switch-node ringing to minimise high-frequency radiated noise. Frequency spread spectrum (FSS) contributes further to quiet performance by dispersing switching-noise energy.<\/p>\n\n\n\n
The AP63356Q operates continuously in PWM mode at the nominal 450kHz switching frequency for all loads. The AP63357Q changes to PFM mode at light loads, keeping efficiency as high as 86% at 5mA load and drawing quiescent current of just 22\u00b5A under no load.<\/p>\n\n\n\n
Both devices feature low-dropout (LDO) operation, which maintains their output-voltage regulation as the input reduces to a level near the output voltage. Built-in protection features include output undervoltage protection (UVP), cycle-by-cycle peak current limit, and thermal shutdown. <\/p>\n\n\n\n
The protection features, along with 40V (for 400ms) input voltage surge withstand capability, enable the devices to provide a robust Automotive POL solution.<\/p>\n\n\n\n
The AP63356Q and AP63357Q are qualified to AEC-Q100 Grade 1, support PPAP documentation, and are manufactured in IATF 16949 certified facilities. The devices are each available in a 3mm \u00d7 2mm V-DFN3020-13 (SWP) package with wettable flanks to aid in automated optical inspection. <\/p>\n","protected":false},"excerpt":{"rendered":"
Diodes Incorporated has announced two highly integrated synchronous buck converters that simplify circuit design in automotive power systems with its Power Good output and its EMI mitigation for noise-sensitive applications. The AP63356Q and AP63357Q are 3.5A converters with an input voltage range of 3.8V to 32V. Leveraging peak current mode control, as well as high-side …<\/p>\n","protected":false},"author":1,"featured_media":18476,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[104],"tags":[9032,9033,8329,9034],"class_list":["post-18475","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-electronics","tag-ap63356q","tag-ap63357q","tag-diodes-inc","tag-synchronous-buck-converters"],"yoast_head":"\n
Automotive-compliant synchronous buck converters feature noise reduction - Engineer News Network<\/title>\n<meta name=\"description\" content=\"Diodes Incorporated has announced two highly integrated synchronous buck converters that simplify circuit design in automotive power systems with its Power Good output and its EMI mitigation for noise-sensitive applications\" \/>\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\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Automotive-compliant synchronous buck converters feature noise reduction - Engineer News Network\" \/>\n<meta property=\"og:description\" content=\"Diodes Incorporated has announced two highly integrated synchronous buck converters that simplify circuit design in automotive power systems with its Power Good output and its EMI mitigation for noise-sensitive applications\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.engineernewsnetwork.com\/blog\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\/\" \/>\n<meta property=\"og:site_name\" content=\"Engineer News Network\" \/>\n<meta property=\"article:published_time\" content=\"2020-11-19T09:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2020\/11\/DIO995_Image_AP63356-7Q.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=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\\\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/#\\\/schema\\\/person\\\/4477342aea8e299c6a21761e513ea8e1\"},\"headline\":\"Automotive-compliant synchronous buck converters feature noise reduction\",\"datePublished\":\"2020-11-19T09:00:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\\\/\"},\"wordCount\":333,\"image\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/11\\\/DIO995_Image_AP63356-7Q.jpg\",\"keywords\":[\"AP63356Q\",\"AP63357Q\",\"Diodes Inc\",\"synchronous buck converters\"],\"articleSection\":[\"Electronics\"],\"inLanguage\":\"en-GB\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\\\/\",\"url\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\\\/\",\"name\":\"Automotive-compliant synchronous buck converters feature noise reduction - Engineer News Network\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/11\\\/DIO995_Image_AP63356-7Q.jpg\",\"datePublished\":\"2020-11-19T09:00:00+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/#\\\/schema\\\/person\\\/4477342aea8e299c6a21761e513ea8e1\"},\"description\":\"Diodes Incorporated has announced two highly integrated synchronous buck converters that simplify circuit design in automotive power systems with its Power Good output and its EMI mitigation for noise-sensitive applications\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\\\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/11\\\/DIO995_Image_AP63356-7Q.jpg\",\"contentUrl\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/11\\\/DIO995_Image_AP63356-7Q.jpg\",\"width\":900,\"height\":690,\"caption\":\"The AP63356Q and AP63357Q are 3.5A converters with an input voltage range of 3.8V to 32V\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Automotive-compliant synchronous buck converters feature noise reduction\"}]},{\"@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":"Automotive-compliant synchronous buck converters feature noise reduction - Engineer News Network","description":"Diodes Incorporated has announced two highly integrated synchronous buck converters that simplify circuit design in automotive power systems with its Power Good output and its EMI mitigation for noise-sensitive applications","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\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\/","og_locale":"en_GB","og_type":"article","og_title":"Automotive-compliant synchronous buck converters feature noise reduction - Engineer News Network","og_description":"Diodes Incorporated has announced two highly integrated synchronous buck converters that simplify circuit design in automotive power systems with its Power Good output and its EMI mitigation for noise-sensitive applications","og_url":"https:\/\/www.engineernewsnetwork.com\/blog\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\/","og_site_name":"Engineer News Network","article_published_time":"2020-11-19T09:00:00+00:00","og_image":[{"width":900,"height":690,"url":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2020\/11\/DIO995_Image_AP63356-7Q.jpg","type":"image\/jpeg"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"Written by":"admin","Estimated reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\/#article","isPartOf":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\/"},"author":{"name":"admin","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/#\/schema\/person\/4477342aea8e299c6a21761e513ea8e1"},"headline":"Automotive-compliant synchronous buck converters feature noise reduction","datePublished":"2020-11-19T09:00:00+00:00","mainEntityOfPage":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\/"},"wordCount":333,"image":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\/#primaryimage"},"thumbnailUrl":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2020\/11\/DIO995_Image_AP63356-7Q.jpg","keywords":["AP63356Q","AP63357Q","Diodes Inc","synchronous buck converters"],"articleSection":["Electronics"],"inLanguage":"en-GB"},{"@type":"WebPage","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\/","url":"https:\/\/www.engineernewsnetwork.com\/blog\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\/","name":"Automotive-compliant synchronous buck converters feature noise reduction - Engineer News Network","isPartOf":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\/#primaryimage"},"image":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\/#primaryimage"},"thumbnailUrl":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2020\/11\/DIO995_Image_AP63356-7Q.jpg","datePublished":"2020-11-19T09:00:00+00:00","author":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/#\/schema\/person\/4477342aea8e299c6a21761e513ea8e1"},"description":"Diodes Incorporated has announced two highly integrated synchronous buck converters that simplify circuit design in automotive power systems with its Power Good output and its EMI mitigation for noise-sensitive applications","breadcrumb":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.engineernewsnetwork.com\/blog\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\/"]}]},{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\/#primaryimage","url":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2020\/11\/DIO995_Image_AP63356-7Q.jpg","contentUrl":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2020\/11\/DIO995_Image_AP63356-7Q.jpg","width":900,"height":690,"caption":"The AP63356Q and AP63357Q are 3.5A converters with an input voltage range of 3.8V to 32V"},{"@type":"BreadcrumbList","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/automotive-compliant-synchronous-buck-converters-feature-noise-reduction\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.engineernewsnetwork.com\/blog\/"},{"@type":"ListItem","position":2,"name":"Automotive-compliant synchronous buck converters feature noise reduction"}]},{"@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\/18475","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=18475"}],"version-history":[{"count":1,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/posts\/18475\/revisions"}],"predecessor-version":[{"id":18477,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/posts\/18475\/revisions\/18477"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/media\/18476"}],"wp:attachment":[{"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/media?parent=18475"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/categories?post=18475"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/tags?post=18475"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}