{"id":3326,"date":"2026-06-01T01:17:46","date_gmt":"2026-06-01T01:17:46","guid":{"rendered":"https:\/\/materialparts.com\/lm317tg\/"},"modified":"2026-06-01T01:17:46","modified_gmt":"2026-06-01T01:17:46","slug":"lm317tg","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/lm317tg\/","title":{"rendered":"LM317TG"},"content":{"rendered":"

Productos<\/h2>\n

The LM317TG from onsemi is an adjustable 3-terminal positive voltage regulator capable of over 1.5A from 1.2V to 37V. Functionally equivalent to TI LM317T with Pb-free TO-220-3 construction. Features internal current limiting, thermal shutdown, and safe operating area protection. Only two external resistors set the output voltage.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Output Voltage Range<\/td>\n1.2V to 37V<\/td>\n<\/tr>\n
Corriente de salida<\/td>\n1.5A<\/td>\n<\/tr>\n
Line Regulation<\/td>\n0.04%\/V max<\/td>\n<\/tr>\n
Load Regulation<\/td>\n0.5% max<\/td>\n<\/tr>\n
Reference Voltage<\/td>\n1.25V (1.2-1.3V range)<\/td>\n<\/tr>\n
Ripple Rejection<\/td>\n80dB @ 120Hz<\/td>\n<\/tr>\n
Dropout Voltage<\/td>\n2.25V typical<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n0 to 125\u00b0C<\/td>\n<\/tr>\n
Paquete<\/td>\nTO-220-3 (Pb-free)<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • 1.5A output with external heatsink<\/li>\n
  • Adjustable 1.2V to 37V<\/li>\n
  • Internal thermal overload and short-circuit protection<\/li>\n
  • Output safe-area compensation<\/li>\n
  • Pb-free TO-220, RoHS compliant<\/li>\n
  • NCV317 automotive variant available<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Adjustable bench power supplies<\/li>\n
    • On-card voltage regulation<\/li>\n
    • Battery charger circuits<\/li>\n
    • Constant current regulators<\/li>\n
    • Programmable output regulators<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LM317TG from onsemi is an adjustable 3-terminal positive voltage regulator capable of over 1.5A from 1.2V to 37V. Functionally equivalent to TI LM317T with Pb-free TO-220-3 construction. Features internal current limiting, thermal shutdown, and safe operating area protection. Only two external resistors set the output voltage. Key Specifications Output Voltage Range 1.2V […]<\/p>\n","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":[144],"class_list":["post-3326","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","chip_brand-on"],"acf":{"brief_explanation":"1.5A adjustable positive voltage regulator, 1.2-37V, Pb-free TO-220-3","date_code":"","package_case":"TO-220-3 \/ Case 221AB (10.28 x 4.82 x 9.28 mm, tab=VOUT)","in_stock":13100,"datasheet":"https:\/\/www.onsemi.com\/pdf\/datasheet\/lm317-d.pdf","price":"$0.33 @ 1ku","product_introduction":"The LM317TG from onsemi is the Pb-free version of the industry-standard LM317 adjustable positive voltage regulator. Over 1.5A output, adjustable 1.2V to 37V with two external resistors. Comprehensive protection: current limiting, thermal shutdown, safe-area compensation. TO-220-3 with Pb-free termination for RoHS-compliant designs.","working_principle":"Maintains 1.25V reference between OUTPUT and ADJUST pins. VOUT = 1.25V x (1 + R2\/R1) + IADJ x R2. Internal error amplifier drives NPN Darlington output for regulation. Current limiting at ~2.2A. Thermal shutdown at ~170\u00b0C. Minimum 3.5mA load current for regulation.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>ADJUST<\/td>Input<\/td>Voltage adjustment feedback<\/td><\/tr>
      2<\/td>VOUT<\/td>Output<\/td>Regulated output (heatsink tab)<\/td><\/tr>
      3<\/td>VIN<\/td>Power<\/td>Input supply (max 40V)<\/td><\/tr><\/table>","application_scenarios":"
      • Adjustable bench power supply (1.2-30V+)<\/li>
      • On-card local regulation<\/li>
      • Constant-current LED driver or battery charger<\/li>
      • Programmable supply with DAC-controlled R2<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>LM317T<\/td>TO-220-3<\/td>TI version, identical<\/td><\/tr>
        onsemi<\/td>LM317BTG<\/td>TO-220-3<\/td>Extended temp -40 to +125\u00b0C<\/td><\/tr>
        onsemi<\/td>LM317BD2TG<\/td>D2PAK-3<\/td>SMD version<\/td><\/tr>
        onsemi<\/td>NCV317BD2TG<\/td>D2PAK-3<\/td>Automotive qualified<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/3326","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=3326"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/3326\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=3326"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=3326"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=3326"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=3326"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}