{"id":703,"date":"2021-12-15T15:32:00","date_gmt":"2021-12-15T07:32:00","guid":{"rendered":"https:\/\/ecmos2.liho.work\/?p=703"},"modified":"2024-09-10T13:29:48","modified_gmt":"2024-09-10T05:29:48","slug":"ec9309","status":"publish","type":"post","link":"https:\/\/www.ecmos.com.tw\/cn\/dc-converter-buck\/ec9309\/","title":{"rendered":"EC9309\uff5c2A 150KHz PWM Buck DC\/DC Converter"},"content":{"rendered":"<a href=\"https:\/\/www.ecmos.com.tw\/wp-content\/uploads\/2021\/12\/EC9309.pdf\" download=\"EC9309.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">\n<div class=\"postbutton\">\u898f\u683c\u66f8\u4e0b\u8f09<\/div><\/a>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">General description<\/h3>\n\n\n\n<p>The EC9309 is a series of easy to use fixed and adjustable step-down (buck) switch-mode voltage regulators. <\/p>\n\n\n\n<p>These devices are available in fixed output voltage of 3.3V, 5V, and an adjustable output version.<\/p>\n\n\n\n<p>Both versions are capable of driving a 2A load with excellent line and load regulation.<\/p>\n\n\n\n<p>Requiring a minimum number of external components, these regulators are simple to use and include internal requency compensation, and a fixed-frequency oscillator.<\/p>\n\n\n\n<p>The output voltage is guaranteed to \u00b13% tolerance under specified input voltage and output load conditions.<\/p>\n\n\n\n<p>The oscillator frequency is guaranteed to \u00b115%.<\/p>\n\n\n\n<p>External shutdown is included, featuring typically 80 \u03bcA standby current. Self protection features include a two stage frequency reducing current limit for the output switch and an over temperature shutdown for complete protection under fault conditions.<\/p>\n\n\n\n<p>The EC9309 is available in SOP-8 ,and DIP-8 packages.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Features<\/h3>\n\n\n\n<p>3V,5V and adjustable output Versions<br>Output adjustable from 1.23V to 43V<br>Fixed 150KHz frequency internal oscillator<br>Guaranteed 2A output load current<br>Input voltage range up to 45V<br>Low power standby mode, IQ typically 80 \u03bcA<br>TTL shutdown capability<br>Excellent line and load regulation<br>Requires only 4 external components<br>High efficiency<br>Thermal shutdown and current limit protection<br>Available in SOP-8 and DIP-8 packages<br>Applications<br>Simple High-efficiency step-down regulator<br>On-card switching regulators<br>Positive to negative converter<br>LCD monitor and LCD TV<br>DVD recorder and PDP TV<br>Battery charger<br>Step-down to 3.3V for microprocessors<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<iframe src=\"https:\/\/www.ecmos.com.tw\/wp-content\/uploads\/2021\/12\/EC9309.pdf\" width=\"640\" height=\"1000\" allow=\"autoplay\"><\/iframe>\n\n\n\n<a href=\"https:\/\/www.ecmos.com.tw\/wp-content\/uploads\/2021\/12\/EC9309.pdf\" download=\"EC9309.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">\n<div class=\"postbutton\">\u898f\u683c\u66f8\u4e0b\u8f09<\/div><\/a>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>","protected":false},"excerpt":{"rendered":"<p>\u898f\u683c\u66f8\u4e0b\u8f09 General description The EC9309 is a series of eas [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"slim_seo":{"description":"The EC9309 is a series of easy to use fixed and adjustable step-down (buck) switch-mode voltage regulators. These devices are available in fixed output voltage of 3.3V, 5V, and an adjustable output version. Both versions are capable of driving a 2A load with excellent line and load regulation.Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation, and a fixed-frequency oscillator. The output voltage is guaranteed to \u00b13% tolerance under specified input voltage and output load conditions. The oscillator frequency is guaranteed to \u00b115%. External shutdown is included, featuring typically 80 \u03bcA standby current. Self protection features include a two stage frequency reducing current limit for the output switch and an over temperature shutdown for complete protection under fault conditions.The EC9309 is available in SOP-8 ,and DIP-8 packages.","title":"EC9309\uff5c2A 150KHz PWM Buck DC\/DC Converter - \u98db\u8679\u9ad8\u79d1\u80a1\u4efd\u6709\u9650\u516c\u53f8"},"footnotes":""},"categories":[12],"tags":[],"class_list":["post-703","post","type-post","status-publish","format-standard","hentry","category-dc-converter-buck"],"_links":{"self":[{"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/posts\/703","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/comments?post=703"}],"version-history":[{"count":3,"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/posts\/703\/revisions"}],"predecessor-version":[{"id":17340,"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/posts\/703\/revisions\/17340"}],"wp:attachment":[{"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/media?parent=703"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/categories?post=703"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/tags?post=703"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}