{"id":5588,"date":"2026-06-11T02:53:06","date_gmt":"2026-06-11T02:53:06","guid":{"rendered":"https:\/\/materialparts.com\/l78m10abdt-tr\/"},"modified":"2026-06-12T09:11:30","modified_gmt":"2026-06-12T09:11:30","slug":"l78m10abdt-tr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/l78m10abdt-tr\/","title":{"rendered":"L78M10ABDT-TR"},"content":{"rendered":"

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The L78M10ABDT-TR from STMicroelectronics is a 10V fixed positive voltage regulator with 500mA output in a DPAK surface-mount package for board-level power regulation.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n
\u5305\u88c5<\/td>\nTO-252 (DPAK)<\/td>\n<\/tr>\n<\/table>\n

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  • See datasheet for complete specifications<\/li>\n
  • Industry-standard package<\/li>\n<\/ul>\n

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      \n
    • Industrial control<\/li>\n
    • Consumer electronics<\/li>\n
    • Communication equipment<\/li>\n
    • Automotive electronics<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The L78M10ABDT-TR from STMicroelectronics is a 10V fixed positive voltage regulator with 500mA output in a DPAK surface-mount package for board-level power regulation. Key Specifications Package TO-252 (DPAK) Features See datasheet for complete specifications Industry-standard package Applications Industrial control Consumer electronics Communication equipment Automotive electronics<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,32],"tags":[],"chip_brand":[142],"class_list":["post-5588","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","chip_brand-st"],"acf":{"brief_explanation":"10V 500mA LDO, TO-252 (DPAK)","date_code":"","package_case":"TO-252 (DPAK)","in_stock":11891,"datasheet":"https:\/\/www.st.com\/en\/power-management\/l78m.html","price":"$0.45 @ 1ku","product_introduction":"The L78M10ABDT-TR from STMicroelectronics is a 10V fixed positive voltage regulator with 500mA output in a DPAK surface-mount package for board-level power regulation.","working_principle":"The L78M10ABDT-TR is a 10V 500mA positive voltage regulator from STMicroelectronics in DPAK (TO-252), the 500mA version of the classic 78xx series. The M-series (500mA) fills the gap between the 100mA 78Lxx (TO-92) and the 1A 78xx (TO-220). The internal architecture uses a bandgap reference, error amplifier, and series-pass NPN transistor. The dropout voltage is 2V at 500mA (VIN must be at least 12V for 10V output). The DPAK (TO-252) package is the surface-mount equivalent of TO-220, with the tab acting as both the electrical GND connection and the primary thermal path. The thermal resistance is 10C\/W junction-to-tab, allowing 1.25W dissipation at 25C ambient on a standard 1oz copper pour. The device includes current limiting (700mA), thermal shutdown at 150C, and safe operating area protection. The -AB suffix specifies A-grade (2% output voltage tolerance at 25C). The -DT-TR suffix specifies DPAK (TO-252), tape-and-reel. The 10V output is used in: analog circuit bias (op-amp supplies), relay driver power, and as a pre-regulator for low-noise regulators. In 12V automotive systems, the L78M10 provides a stable 10V rail for analog sensors and reference circuits.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>IN<\/td>Input<\/td>Unregulated input voltage (12.5-35V for 10V output)<\/td><\/tr>
      2<\/td>GND<\/td>Power<\/td>Ground (tab connected internally, heatsink to GND plane)<\/td><\/tr>
      3<\/td>OUT<\/td>Output<\/td>Regulated 10V output (up to 500mA)<\/td><\/tr><\/table>","application_scenarios":"
    • Industrial control<\/li>
    • Consumer electronics<\/li>
    • Communication equipment<\/li>
    • Automotive electronics<\/li>","alternative_models":"
      Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
      STMicroelectronics<\/td>L78M10ABDT-TR<\/td>DPAK<\/td>Same device, ST brand<\/td><\/tr>
      onsemi<\/td>MC78M10ABDTTG<\/td>DPAK<\/td>10V 500mA LDO, onsemi brand<\/td><\/tr>
      Texas Instruments<\/td>UA78M10CDCYRG3<\/td>DPAK<\/td>10V 500mA, TI brand<\/td><\/tr>
      Infineon<\/td>TLE4274G<\/td>TO-252<\/td>5V 40mA automotive, alternative for 5V rail<\/td><\/tr>
      Diodes Inc<\/td>AZ1117IH-ADJTRG1<\/td>SOT-223<\/td>1A adjustable LDO, set to 10V<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5588","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=5588"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5588\/revisions"}],"predecessor-version":[{"id":6172,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5588\/revisions\/6172"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=5588"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=5588"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=5588"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=5588"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}