{"id":39215,"date":"2025-04-22T13:01:15","date_gmt":"2025-04-22T18:01:15","guid":{"rendered":"https:\/\/flex.com\/products\/power-modules\/series\/bmr323"},"modified":"2026-03-24T09:54:10","modified_gmt":"2026-03-24T14:54:10","slug":"bmr323","status":"publish","type":"power-module-series","link":"https:\/\/flex.com\/zh\/products\/power-modules\/series\/bmr323","title":{"rendered":"BMR323"},"content":{"rendered":"<div id=\"id-69d8f3ee3a0de\" class=\"box block full-width dark-content zh \" style=\"background-color: transparent; background-image: none;\">\n\t<style>\n\t\t#id-69d8f3ee3a0de > .container > .content {\n\t\t\tbackground-color: transparent;\n\t\t\tposition: relative;\n\t\t\tpadding-top: 48px;\n\t\t\tpadding-right: 0px;\n\t\t\tpadding-bottom: 72px;\n\t\t\tpadding-left: 0px;\n\t\t\tmargin-left: 0px;\n\t\t\tmargin-right: 0px;\n\t\t}\n\t\t@media (max-width: 1272px) {\n\t\t\t#id-69d8f3ee3a0de.box.block.full-width > .container > .content {\n\t\t\t\tpadding-left: 0 !important;\n\t\t\t\tpadding-right: 0 !important;\n\t\t\t\tmargin: 0 !important;\n\t\t\t}\n\t\t}\n\t\t@media (max-width: 960px) {\n\t\t\t#id-69d8f3ee3a0de > .container > .content {\n\t\t\t\t\/\/padding-top: 24px;\n\t\t\t\tpadding-right: 0px;\n\t\t\t\t\/\/padding-bottom: 36px;\n\t\t\t\tpadding-left: 0px;\n\t\t\t}\n\t\t}\n\t<\/style>\n\t<div class=\"container\">\n\t\t<div class=\"content\">\n\t\t\t\n\n<h1 class=\"wp-block-heading\">BMR323<\/h1>\n\n\n\n<h2 class=\"wp-block-heading no-margin has-medium-font-size\" style=\"font-style:normal;font-weight:500\">600 W\/1,200 W peak non-isolated unregulated Intermediate Bus Converter<\/h2>\n\n\n<div class=\"spacer block\" style=\"height: 24px;\">\n\t<\/div>\n\n\n<h3 class=\"wp-block-heading has-small-font-size\">Main features<\/h3>\n\n\n<div id=\"id_69d8f3ee2360f\" class=\"media block\">\n\t<div class=\"container media-right content-top\">\n\t\t<div class=\"media\" style=\"left: 0px; min-width: 384px; max-width: 384px;\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"image none\">\n\t\t\t\t\t\t\t<img decoding=\"async\" alt=\"BMR323\" src=\"https:\/\/flex.com\/wp-content\/uploads\/2025\/12\/BMR323-top-bottom-low-res-1-1200x800.png\" title=\"\">\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"content\" style=\"margin-right: 36px; margin-left: 0px;\">\n\t\t\t\t\n\n<p>The BMR323 is a non-isolated, unregulated Intermediate Bus Converter (IBC) housed in an extremely compact package measuring just 27 x 18 x 6.7 mm (1.06 x 0.71 x 0.26 in), and delivers 600 W of continuous output power and 1,200 W of peak power from an input voltage of 40-60 V. This equates to a power density of up to 368 W\/cm<sup>3<\/sup> (6,132 W\/in<sup>3<\/sup>).<\/p>\n\n\n\n<p>The unregulated device utilizes an 8:1 fixed ratio, meaning the output voltage ranges from 5\u20137.5 V, ideal for those applications that require a lower intermediate bus voltage that can be helpful to optimize overall system efficiency when used in conjunction with downstream <a href=\"\/products\/power-modules\/product-selector?order=desc&amp;order_by=field_pout_max&amp;order_type=meta&amp;order_format=number&amp;series=Power%20Modules&amp;status=Active&amp;sub_family=Analog%20Point%20of%20Load;Digital%20Point%20of%20Load\" target=\"_blank\" rel=\"noreferrer noopener\">POLs<\/a>, <a href=\"\/products\/power-modules\/vertical-power-delivery\" target=\"_blank\" rel=\"noreferrer noopener\">VPDs<\/a>, or <a href=\"\/products\/power-modules\/product-selector?order=desc&amp;order_by=field_pout_max&amp;order_type=meta&amp;order_format=number&amp;series=Power%20Modules&amp;status=Active&amp;family=Integrated%20Power%20Stage\" target=\"_blank\" rel=\"noreferrer noopener\">VRMs<\/a> (Integrated Power Stages) such as the <a href=\"\/products\/power-modules\/series\/bmr510\" target=\"_blank\" rel=\"noreferrer noopener\">BMR510<\/a> and others.<\/p>\n\n\n\t\t\t<\/div>\n\t\t\t<\/div>\n\t\n\t<script>\n\t(function () {\n\t\tlet hasRun_id_69d8f3ee2360f = false;\n\t\tfunction updateVideoDisplay_id_69d8f3ee2360f() {\n\t\t\tconst youtubeVideoId = \"\";\n\t\t\tconst bynderID = \"\";\n\t\t\tconst mediaType = \"image\";\n\t\t\tconst mediaVideoElement = document.getElementById('media-video-id_69d8f3ee2360f');\n\t\t\tconst bodyClass = document.body.className || '';\n\t\t\tconst match = bodyClass.match(\/translatepress-([a-z]{2})(?:_[A-Z]{2})?\/i);\n\t\t\tconst currentLanguage = match ? 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We appreciate your patience and look forward to sharing it with you soon.<\/p>\n\t\t\t\t\t<\/div>\n\t\t\t\t`;\n\t\t\t\tmediaVideoElement.appendChild(errorDiv);\n\t\t\t}\n\t\t}\n\t\t\n\t\tfunction runVideoInjection() {\n\t\t\tif (hasRun_id_69d8f3ee2360f) return;\n\t\t\thasRun_id_69d8f3ee2360f = true;\n\t\t\tupdateVideoDisplay_id_69d8f3ee2360f();\n\t\t}\n\t\t\n\t\t\/\/ Always run on front-end\n\t\tif (document.readyState === 'loading') {\n\t\t\tdocument.addEventListener('DOMContentLoaded', runVideoInjection);\n\t\t} else {\n\t\t\trunVideoInjection();\n\t\t}\n\t\t\n\t\t\/\/ Also run in editor if available\n\t\tif (typeof wp !== 'undefined' && wp.domReady) {\n\t\t\twp.domReady(runVideoInjection);\n\t\t}\n\t})();\n\t<\/script>\n\t\n\t<script>\n\t\tdocument.addEventListener('DOMContentLoaded', function () {\n\t\t\t\n\t\t\t\/\/ Get the block element by ID\n\t\t\tvar blockElement = document.getElementById(\"id_69d8f3ee2360f\");\n\t\t\tif (!blockElement) return;\n\t\n\t\t\t\/\/ Reveal the block\n\t\t\t(function ($) {\n\t\t\t\tScrollReveal().reveal(blockElement.querySelector(\".container .media\"), {origin: \"bottom\", distance: \"20px\", opacity: 1, duration: 1000});\n\t\t\t\tScrollReveal().reveal(blockElement.querySelector(\".container .content\"), {origin: \"bottom\", distance: \"20px\", opacity: 1, duration: 1000});\n\t\t\t}(jQuery));\n\t\t});\n\t<\/script>\n<\/div>\n\n<div class=\"spacer block\" style=\"height: 24px;\">\n\t<\/div>\n\n\n<p>With efficiency peaking at 97.8%, up to six units can be paralleled for a total load of 3,600 W. The parts are mechanically and thermally designed for top-side cooling to a heatsink with airflow, or for liquid cooling via a thermal block, where the relatively flat design of the topside of the converter allows for easy connection via a thermal interface material such as a gap pad.<\/p>\n\n\n\n<p>The BMR323 protection features include output current limit and over-voltage, along with over-temperature and input under-voltage. A PMBus\u00ae interface is included for monitoring, configuration, and control, and the part is supported by the <a href=\"\/products\/power-modules\/flex-power-designer\" target=\"_blank\" rel=\"noreferrer noopener\">Flex Power Designer Tool<\/a>.<\/p>\n\n\n\n<p>As with all Flex Power Modules\u2019 DC\/DC converters, it complies with IEC\/EN\/UL 62368-1 safety standards.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Series products<\/h3>\n\n\n\n<section data-initialparams=\"meta=series_ref:BMR323&#038;tableOnly=true\" class=\"component-selector wp-block-component-selector-component-selector\">\n    Component Selector Block<\/section>\n\n\n\n<div class=\"sidebar block series-sidebar\">\n\t<div class=\"container\">\n\t\t<div class=\"content\">\n\t\t\t\n\n<section data-series-title=\"BMR323\" class=\"additional-resources wp-block-component-selector-additional-resources\">\n    Additional Resources<\/section>\n\n\n\t\t<\/div>\n\t\t<div class=\"sidebar series-column\">\n\t\t\t\t\t\t\t<h3 class=\"wp-block-heading\">Additional insights<\/h3>\n\t\t\t\t<div class=\"posts-wrapper\">\n\t\t\t\t\t\t\t\t\t<div class=\"post\">\n\t\t\t\t\t\t\t\t<a title=\"IBC\u00a0conversion\u00a0ratios:\u00a0how to choose between 4:1 and 8:1\" class=\"image\" href=\"https:\/\/flex.com\/zh\/resources\/ibc-conversion-ratios-how-to-choose-between-41-and-81\" target=\"_self\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" alt=\"IBC conversion ratios: how to choose between 4:1 and 8:1\" src=\"https:\/\/flex.com\/wp-content\/uploads\/2026\/03\/Power-Modules-_-4.1-vs-8-540x304.jpg\" title=\"\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"label\">\n\t\t\t\t\t\t\tBlog\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t<a title=\"IBC\u00a0conversion\u00a0ratios:\u00a0how to choose between 4:1 and 8:1\" class=\"title\" href=\"https:\/\/flex.com\/zh\/resources\/ibc-conversion-ratios-how-to-choose-between-41-and-81\" target=\"_self\">\n\t\t\t\t\tIBC\u00a0conversion\u00a0ratios:\u00a0how to choose between 4:1 and 8:1\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"post\">\n\t\t\t\t\t\t\t\t<a title=\"Optimizing the power pathway from grid to chip\" class=\"image\" href=\"https:\/\/flex.com\/zh\/resources\/optimizing-the-power-pathway-from-grid-to-chip\" target=\"_self\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" alt=\"Network server room with computers for digital communications\" src=\"https:\/\/flex.com\/wp-content\/uploads\/2025\/09\/Network-server-room-with-computers-for-digital-communications-540x304.jpg\" title=\"\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"label\">\n\t\t\t\t\t\t\tBlog\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t<a title=\"Optimizing the power pathway from grid to chip\" class=\"title\" href=\"https:\/\/flex.com\/zh\/resources\/optimizing-the-power-pathway-from-grid-to-chip\" target=\"_self\">\n\t\t\t\t\tOptimizing the power pathway from grid to chip\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"post\">\n\t\t\t\t\t\t\t\t<a title=\"What\u2019s driving the need for different input\/output ratios of DC\/DCs?\" class=\"image\" href=\"https:\/\/flex.com\/zh\/resources\/whats-driving-the-need-for-different-input-output-ratios-of-dc-dcs\" target=\"_self\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" alt=\"A chalkboard with handwritten text showing terms arranged around a large question mark, including \u201cNon-Isolated\u201d at the top, \u201cIsolated\u201d at the bottom, \u201cRegulated\u201d on the left with ratios \u201c4:1\u201d and \u201c6:1,\u201d and \u201cUnregulated\u201d on the right with ratios \u201c8:1\u201d and \u201c10:1.\u201d\" src=\"https:\/\/flex.com\/wp-content\/uploads\/2025\/09\/Ratios-540x304.jpg\" title=\"\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"label\">\n\t\t\t\t\t\t\tBlog\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t<a title=\"What\u2019s driving the need for different input\/output ratios of DC\/DCs?\" class=\"title\" href=\"https:\/\/flex.com\/zh\/resources\/whats-driving-the-need-for-different-input-output-ratios-of-dc-dcs\" target=\"_self\">\n\t\t\t\t\tWhat\u2019s driving the need for different input\/output ratios of DC\/DCs?\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t<\/div>\n<\/div>\n\n\t\t<\/div>\n\t<\/div>\n<\/div>\n","protected":false},"featured_media":33145,"template":"","meta":{"_acf_changed":false,"_searchwp_excluded":"","inline_featured_image":false},"class_list":["post-39215","power-module-series","type-power-module-series","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/flex.com\/zh\/wp-json\/wp\/v2\/power-module-series\/39215","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/flex.com\/zh\/wp-json\/wp\/v2\/power-module-series"}],"about":[{"href":"https:\/\/flex.com\/zh\/wp-json\/wp\/v2\/types\/power-module-series"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/flex.com\/zh\/wp-json\/wp\/v2\/media\/33145"}],"wp:attachment":[{"href":"https:\/\/flex.com\/zh\/wp-json\/wp\/v2\/media?parent=39215"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}