{"id":525,"date":"2021-12-20T10:06:00","date_gmt":"2021-12-20T02:06:00","guid":{"rendered":"https:\/\/ecmos2.liho.work\/?p=525"},"modified":"2024-09-10T13:25:36","modified_gmt":"2024-09-10T05:25:36","slug":"ec3211","status":"publish","type":"post","link":"https:\/\/www.ecmos.com.tw\/en\/dc-converter-buck\/ec3211\/","title":{"rendered":"EC3211\uff5c1.5MHz, 1.2A, Syn. Step-Down Regulator"},"content":{"rendered":"<a href=\"https:\/\/www.ecmos.com.tw\/wp-content\/uploads\/2021\/12\/EC3211_3I12N-Ref.F001.pdf\" download=\"EC3211_3I12N-Ref.F001.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 EC3211 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode<br>architecture.<\/p>\n\n\n\n<p>The device is available in an adjustable version.<\/p>\n\n\n\n<p>Supply current during operation is only 20mA and drops to \u22641mA in shutdown.<\/p>\n\n\n\n<p>The 2.5V to 5.5V input voltage range makes the EC3211 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. Automatic Burst Mode operation increases efficiency at light loads, further extending battery life.<\/p>\n\n\n\n<p>Switching frequency is internally set at 1.5MHz, allowing the use of small surface mount inductors and capacitors.<br>The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode.<\/p>\n\n\n\n<p>Low output voltages are easily supported with the 0.6V feedback reference voltage.<\/p>\n\n\n\n<p>The EC3211 is available in TSOT23-5 package.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Features<\/h3>\n\n\n\n<p>\u25cf High Efficiency: Up to 96%<br>\u25cf High Efficiency at light loads<br>\u25cf Very Low Quiescent Current: Max 70uA During Operation<br>\u25cf 1.2A Output Current<br>\u25cf 2.5V to 5.5V Input Voltage Range<br>\u25cf 1.5MHz Constant Frequency Operation<br>\u25cf No Schottky Diode Required<br>\u25cf Low Dropout Operation: 100% Duty Cycle<br>\u25cf 0.6V Reference Allows Low Output Voltages<br>\u25cf Shutdown Mode Draws \u22641uA Supply Current<br>\u25cf Current Mode Operation for Excellent Line and Load Transient Response<br>\u25cf Over-temperature Protected<br>\u25cf TSOT23-5 Package is Available<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Applications<\/h3>\n\n\n\n<p>\u25cfCellular Telephones<br>\u25cfPersonal Information Appliances<br>\u25cfWireless and DSL Modems<br>\u25cfDigital Still Cameras<br>\u25cfMP3 Players<br>\u25cfPortable Instruments<\/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\/EC3211_3I12N-Ref.F001.pdf\" width=\"640\" height=\"1000\" allow=\"autoplay\"><\/iframe>\n\n\n\n<a href=\"https:\/\/www.ecmos.com.tw\/wp-content\/uploads\/2021\/12\/EC3211_3I12N-Ref.F001.pdf\" download=\"EC3211_3I12N-Ref.F001.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<p><\/p>","protected":false},"excerpt":{"rendered":"<p>\u898f\u683c\u66f8\u4e0b\u8f09 General Description The EC3211 is a high efficien [&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 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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":"ystems. Automatic Burst Mode operation increases efficiency at light loads, further extending battery life. Switching frequency is internally set at 1.5MHz, allowing the use of small surface mount inductors and capacitors. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. Low output voltages are easily supported with the 0.6V feedback reference voltage. The EC3211 is available in TSOT23-5 package.","title":"EC3211\uff5c1.5MHz, 1.2A, Syn. Step-Down Regulator - \u98db\u8679\u9ad8\u79d1\u80a1\u4efd\u6709\u9650\u516c\u53f8"},"footnotes":""},"categories":[12],"tags":[],"class_list":["post-525","post","type-post","status-publish","format-standard","hentry","category-dc-converter-buck"],"_links":{"self":[{"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/posts\/525","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/comments?post=525"}],"version-history":[{"count":2,"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/posts\/525\/revisions"}],"predecessor-version":[{"id":17324,"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/posts\/525\/revisions\/17324"}],"wp:attachment":[{"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/media?parent=525"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/categories?post=525"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ecmos.com.tw\/en\/wp-json\/wp\/v2\/tags?post=525"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}