{"id":32212,"date":"2026-05-14T09:20:00","date_gmt":"2026-05-14T08:20:00","guid":{"rendered":"https:\/\/www.engineernewsnetwork.com\/blog\/?p=32212"},"modified":"2026-05-13T09:46:53","modified_gmt":"2026-05-13T08:46:53","slug":"non-isolated-buck-boost-dc-dc-converters-with-up-to-99-efficiency","status":"publish","type":"post","link":"https:\/\/www.engineernewsnetwork.com\/blog\/non-isolated-buck-boost-dc-dc-converters-with-up-to-99-efficiency\/","title":{"rendered":"Non-isolated buck-boost DC-DC converters with up to 99 % efficiency"},"content":{"rendered":"\n

TDK Corporation announces the launch of the TDK\u2011Lambda i9C series<\/a><\/strong>, a 1500 W non\u2011isolated DC\u2011DC buck\u2011boost power module designed to maximise system efficiency, reduce thermal stress, and extend battery runtime in demanding industrial and battery\u2011powered applications. The i9C series launches with a 9\u201380V input, 9.6\u201360V output model delivering up to 30A. A second configuration supporting a 9\u201340V input range with 5\u201336V output and up to 50A is planned to follow, expanding the series’ voltage and current options.<\/p>\n\n\n\n

At the core of the i9C series is TDK-Lambda’s programmable high-efficiency pass-through (PHEPT) technology. PHEPT allows designers to define an input-voltage window in which the module bypasses regulation and directly connects the input to the output, eliminating switching and conversion losses. When operating in this mode, efficiency can reach up to 99 %, significantly reducing heat generation and improving system reliability for engineers, particularly those designing battery-powered systems.<\/p>\n\n\n\n

The i9C is packaged in a compact, wide quarter\u2011brick form factor with an integral baseplate that supports convection, conduction, or forced\u2011air cooling, making it well suited for high\u2011ambient, low\u2011airflow environments. Standard control and protection features include negative\u2011logic on\/off control, power\u2011good, remote sense, user\u2011adjustable overcurrent protection, low\u2011power sleep mode, and full auto\u2011recovery protection. The user-configurable sleep mode programs the power module into a low-power dissipation state during idle or light-load conditions. The adjustable overcurrent protection reduces stress on both the power module and load and helps engineers reduce or eliminate external circuitry.<\/p>\n\n\n\n

The i9C series is designed for use in industrial, communications, test and measurement, and battery-powered applications, including AGVs, AMRs, commercial drones, and humanoid robotics. The modules are certified to IEC\/UL\/CSA\/EN 62368\u20111 safety standards and carry CE and UKCA markings for the Low Voltage, EMC, and RoHS Directives.<\/p>\n","protected":false},"excerpt":{"rendered":"

TDK Corporation announces the launch of the TDK\u2011Lambda i9C series, a 1500 W non\u2011isolated DC\u2011DC buck\u2011boost power module designed to maximise system efficiency, reduce thermal stress, and extend battery runtime in demanding industrial and battery\u2011powered applications. The i9C series launches with a 9\u201380V input, 9.6\u201360V output model delivering up to 30A. A second configuration supporting …<\/p>\n","protected":false},"author":1,"featured_media":32213,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[104],"tags":[4575,14857],"class_list":["post-32212","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-electronics","tag-tdk","tag-tdk-lambda-i9c-series"],"yoast_head":"\nNon-isolated buck-boost DC-DC converters with up to 99 % efficiency - Engineer News Network<\/title>\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\/non-isolated-buck-boost-dc-dc-converters-with-up-to-99-efficiency\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Non-isolated buck-boost DC-DC converters with up to 99 % efficiency - Engineer News Network\" \/>\n<meta property=\"og:description\" content=\"TDK Corporation announces the launch of the TDK\u2011Lambda i9C series, a 1500 W non\u2011isolated DC\u2011DC buck\u2011boost power module designed to maximise system efficiency, reduce thermal stress, and extend battery runtime in demanding industrial and battery\u2011powered applications. 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