{"id":11341,"date":"2026-07-26T05:50:54","date_gmt":"2026-07-26T05:50:54","guid":{"rendered":"https:\/\/ic-vendor.com\/az431lbntr-g1\/"},"modified":"2026-07-26T05:50:54","modified_gmt":"2026-07-26T05:50:54","slug":"az431lbntr-g1","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/az431lbntr-g1\/","title":{"rendered":"AZ431LBNTR-G1"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The Diodes Incorporated AZ431LBNTR-G1 is a low-voltage adjustable precision shunt voltage reference. 1.24V to 18V output range, +\/-1% initial tolerance, 20ppm\/C temperature coefficient, 100mA cathode current in SOT-23-3 package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Reference Voltage<\/td>\n1.24V (min)<\/td>\n<\/tr>\n
Max Output Voltage<\/td>\n18V<\/td>\n<\/tr>\n
Tolerance<\/td>\n+\/-1%<\/td>\n<\/tr>\n
Temp Coefficient<\/td>\n20 ppm\/C typ<\/td>\n<\/tr>\n
Cathode Current<\/td>\n0.1mA to 100mA<\/td>\n<\/tr>\n
Dynamic Impedance<\/td>\n0.05 ohm typ<\/td>\n<\/tr>\n
Min Ika for Regulation<\/td>\n55 uA typ<\/td>\n<\/tr>\n
Operating Temp<\/td>\n-40 to +125C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOT-23-3<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 1.24V low reference voltage<\/li>\n
  • +\/-1% tight initial tolerance<\/li>\n
  • 20 ppm\/C low temperature drift<\/li>\n
  • 0.05 ohm low dynamic impedance<\/li>\n
  • 100mA high sink current<\/li>\n
  • Adjustable output with 2 resistors<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Switching power supply feedback<\/li>\n
    • Charger voltage reference<\/li>\n
    • Motherboard voltage regulation<\/li>\n
    • Industrial power supply reference<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The Diodes Incorporated AZ431LBNTR-G1 is a low-voltage adjustable precision shunt voltage reference. 1.24V to 18V output range, +\/-1% initial tolerance, 20ppm\/C temperature coefficient, 100mA cathode current in SOT-23-3 package. Key Specifications Reference Voltage 1.24V (min) Max Output Voltage 18V Tolerance +\/-1% Temp Coefficient 20 ppm\/C typ Cathode Current 0.1mA to 100mA Dynamic Impedance […]<\/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":[19,13],"tags":[2613],"chip_brand":[193],"class_list":["post-11341","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","tag-az431lbntr-g1","chip_brand-diodes-inc"],"acf":{"brief_explanation":"1.24V-18V adj shunt ref, +\/-1%, 20ppm\/C, SOT-23-3, -40 to 125C","date_code":"","package_case":"SOT-23-3 (2.9x1.3x1.0mm)","in_stock":10067,"datasheet":"https:\/\/www.diodes.com\/part\/az431l\/","price":"$0.06 @ 3ku","product_introduction":"The AZ431LBNTR-G1 from Diodes Inc is a low-voltage (1.24V) adjustable precision shunt regulator in SOT-23-3. The 1.24V reference allows lower output voltages than standard TL431 (2.5V). +\/-1% tolerance and 20 ppm\/C tempco provide stable reference for feedback loops in switching power supplies, chargers, and motherboard VRMs. 100mA cathode current capability supports direct optocoupler drive in isolated supplies.","working_principle":"The AZ431L uses a bandgap reference circuit that generates a stable 1.24V at the REF pin. An internal error amplifier compares the REF voltage with the bandgap and drives the cathode to maintain regulation. Two external resistors set the output voltage: Vout = Vref * (1 + R1\/R2). The 0.05 ohm dynamic impedance ensures stable loop operation.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1<\/td>REF<\/td>Reference input<\/td><\/tr>
      2<\/td>Anode<\/td>Anode (GND)<\/td><\/tr>
      3<\/td>Cathode<\/td>Cathode output<\/td><\/tr><\/table>","application_scenarios":"
      • SMPS optocoupler feedback<\/li>
      • Battery charger reference<\/li>
      • VRM voltage setpoint<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        TL431BDBZR<\/td>TI<\/td>2.495V version<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/11341","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/comments?post=11341"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/11341\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=11341"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=11341"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=11341"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=11341"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}