{"id":7099,"date":"2026-06-23T03:42:58","date_gmt":"2026-06-23T03:42:58","guid":{"rendered":"https:\/\/ic-vendor.com\/as78l12rtr-g1\/"},"modified":"2026-06-23T03:42:58","modified_gmt":"2026-06-23T03:42:58","slug":"as78l12rtr-g1","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/ar\/as78l12rtr-g1\/","title":{"rendered":"AS78L12RTR-G1"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The AS78L12RTR-G1 from Diodes Incorporated (BCR) is a positive voltage regulator providing 12V output at up to 100mA in a SOT-89 package. A low-cost, low-dropout alternative to the 78L12 series, it is suitable for low-power analog and relay supply rails.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n
\u062c\u0647\u062f \u0627\u0644\u062e\u0631\u062c<\/td>\n12 V<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\n100 mA (max)<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u062a\u0633\u0631\u0628<\/td>\n1.7 V (typ)<\/td>\n<\/tr>\n
\u0646\u0637\u0627\u0642 \u062c\u0647\u062f \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n14.8 V to 30 V<\/td>\n<\/tr>\n
Line Regulation<\/td>\n30 mV (typ)<\/td>\n<\/tr>\n
Load Regulation<\/td>\n60 mV (typ)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40C to +125C<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Fixed 12V output with 100mA current capability<\/li>\n
  • Internal thermal shutdown and short-circuit protection<\/li>\n
  • Low quiescent current of 4mA typical<\/li>\n
  • SOT-89 package for compact layout<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • 12V analog and relay supply rails<\/li>\n
    • Low-power auxiliary voltage regulation<\/li>\n
    • Industrial control system supply<\/li>\n
    • Post-regulation for switch-mode supplies<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The AS78L12RTR-G1 from Diodes Incorporated (BCR) is a positive voltage regulator providing 12V output at up to 100mA in a SOT-89 package. A low-cost, low-dropout alternative to the 78L12 series, it is suitable for low-power analog and relay supply rails. Key Specifications Output Voltage 12 V Output Current 100 mA (max) Dropout Voltage […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,32],"tags":[],"chip_brand":[306],"class_list":["post-7099","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","chip_brand-bcr"],"acf":{"brief_explanation":"12V 100mA positive voltage regulator, SOT-89, thermal\/short-circuit protection","date_code":"","package_case":"SOT-89 (4.50 x 2.50 x 1.50 mm)","in_stock":10388,"datasheet":"https:\/\/www.diodes.com\/assets\/Datasheets\/AS78LXX.pdf","price":"$0.08 @ 1ku","product_introduction":"The AS78L12RTR-G1 from Diodes Incorporated is a fixed 12V positive voltage regulator capable of delivering up to 100mA output current in a SOT-89 package. The device requires only external input and output capacitors for stable operation. It features internal thermal shutdown and short-circuit current limiting for reliable operation. Typical dropout voltage is 1.7V, requiring a minimum input voltage of 14.8V. The low quiescent current of 4mA typical minimizes power dissipation. The device is pin-compatible with industry-standard 78L12 regulators in SOT-89 package.","working_principle":"The AS78L12RTR-G1 uses a series-pass regulator topology. (1) Reference: An internal bandgap voltage reference provides a stable 1.25V reference. (2) Error Amplifier: The error amplifier compares a divided-down version of the output voltage to the reference and drives the series-pass transistor to maintain 12V at the output. (3) Pass Transistor: A Darlington NPN series-pass transistor regulates output voltage by dropping excess voltage between input and output. (4) Protection: Thermal shutdown activates at approximately 150C junction temperature, disabling the pass transistor. Short-circuit current limiting restricts output current to approximately 200mA under fault conditions. (5) Bypass Capacitors: A 0.33uF input capacitor prevents oscillation with high source impedance. A 0.1uF output capacitor improves transient response.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>GND<\/td>Ground<\/td>Ground reference<\/td><\/tr>
      2<\/td>VOUT<\/td>Output<\/td>12V regulated output<\/td><\/tr>
      3<\/td>VIN<\/td>Input<\/td>Unregulated input (14.8-30V)<\/td><\/tr><\/table>","application_scenarios":"
      • 12V analog and relay supply rails in industrial control systems<\/li>
      • Low-power auxiliary voltage regulation from 24V industrial supply<\/li>
      • Post-regulation for switch-mode supplies to reduce output noise<\/li>
      • General-purpose 12V bias supply with thermal and short-circuit protection<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        onsemi<\/td>MC78L12ABDR2G<\/td>SOIC-8<\/td>12V 100mA LDO<\/td><\/tr>
        ST<\/td>L78L12ACZ-AP<\/td>TO-92<\/td>Through-hole version<\/td><\/tr>
        TI<\/td>UA78L12ACLP<\/td>TO-92<\/td>12V 100mA, TI brand<\/td><\/tr>
        Diodes Inc<\/td>AS78L05RTR-G1<\/td>SOT-89<\/td>5V version<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/7099","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/comments?post=7099"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/7099\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/media?parent=7099"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/categories?post=7099"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/tags?post=7099"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=7099"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}