{"id":10144,"date":"2022-01-04T10:58:00","date_gmt":"2022-01-04T02:58:00","guid":{"rendered":"https:\/\/22ya4u4yz3u0.wpsite.pro\/?p=10144"},"modified":"2024-09-10T14:06:30","modified_gmt":"2024-09-10T06:06:30","slug":"egm1937","status":"publish","type":"post","link":"https:\/\/www.ecmos.com.tw\/cn\/led-driver\/led-driver-dc-dc-boost\/egm1937\/","title":{"rendered":"EGM1937\uff5c2A, 4.5V-20V Input\uff0c1MHz Synchronous Step-Down Converter"},"content":{"rendered":"<a href=\"https:\/\/www.ecmos.com.tw\/wp-content\/uploads\/2021\/12\/EGM1937_1K16N-Rev.F001.pdf\" download=\"EGM1937_1K16N-Rev.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 EGM1937 is a step-up DC\/DC converter specifically designed to drive white LEDs with a constant current.<br>The device can drive two, three or four LEDs in series from a Li-Ion cell.<br>Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors.<br>The output capacitor can be as small as 0.22\u00b5F, saving space versus alternative solutions.<br>A low 95mV feedback voltage minimizes power loss for better <\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Features<\/h3>\n\n\n\n<p>\u25c6 High Efficiency: 84% Typical<br>\u25c6 36V internal Switch<br>\u25c6 Fast 1.2MHz Switching Frequency<br>\u25c6 Drives Up to three LEDs from a 2.8V Supply<br>\u25c6 Drives Up to six LEDs from a 5V Supply<br>\u25c6 External Matched LED Current<br>\u25c6 Uses Tiny 1mm height inductor<br>\u25c6 Requires Only 0.22 F Output Capacitor<br>\u25c6 Low profile TSOT package<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Applications<\/h3>\n\n\n\n<p>\u25c6 Cellular Phones<br>\u25c6 PDA, Handheld Computers<br>\u25c6 Digital Cameras<br>\u25c6 MPS3 Players<br>\u25c6 GPS Receivers<\/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\/EGM1937_1K16N-Rev.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\/EGM1937_1K16N-Rev.F001.pdf\" download=\"EGM1937_1K16N-Rev.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 EGM1937 is a step-up DC\/D [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","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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The device can drive two, three or four LEDs in series from a Li-Ion cell. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors. The output capacitor can be as small as 0.22\u00b5F, saving space versus alternative solutions. A low 95mV feedback voltage minimizes power loss for better","title":"EGM1937\uff5c2A, 4.5V-20V Input\uff0c1MHz Synchronous Step-Down Converter - \u98db\u8679\u9ad8\u79d1\u80a1\u4efd\u6709\u9650\u516c\u53f8"},"footnotes":""},"categories":[31],"tags":[],"class_list":["post-10144","post","type-post","status-publish","format-standard","hentry","category-led-driver-dc-dc-boost"],"_links":{"self":[{"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/posts\/10144","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=10144"}],"version-history":[{"count":9,"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/posts\/10144\/revisions"}],"predecessor-version":[{"id":17460,"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/posts\/10144\/revisions\/17460"}],"wp:attachment":[{"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/media?parent=10144"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/categories?post=10144"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ecmos.com.tw\/cn\/wp-json\/wp\/v2\/tags?post=10144"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}