{"id":5477,"date":"2026-06-10T04:01:22","date_gmt":"2026-06-10T04:01:22","guid":{"rendered":"https:\/\/materialparts.com\/lm2940sx-5-0-nopb\/"},"modified":"2026-06-10T04:01:22","modified_gmt":"2026-06-10T04:01:22","slug":"lm2940sx-5-0-nopb","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/lm2940sx-5-0-nopb\/","title":{"rendered":"LM2940SX-5.0\/NOPB"},"content":{"rendered":"

Productos<\/h2>\n

The LM2940SX-5.0\/NOPB from Texas Instruments is a 1A low-dropout positive voltage regulator with 5V fixed output in a TO-263 surface-mount package. The SX denotes tape-and-reel packaging. With 0.5V typical dropout at 1A, 26V maximum input, reverse battery protection, and 64dB PSRR at 120Hz, it is designed for automotive and battery-powered applications.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
Output Voltage<\/td>\n5.0V fixed<\/td>\n<\/tr>\n
Input Voltage<\/td>\n6V to 26V<\/td>\n<\/tr>\n
Corriente de salida<\/td>\n1A<\/td>\n<\/tr>\n
Dropout Voltage<\/td>\n500mV typical @ 1A (max 1V)<\/td>\n<\/tr>\n
PSRR<\/td>\n64dB @ 120Hz<\/td>\n<\/tr>\n
Iq<\/td>\n10mA typical @ 1A load<\/td>\n<\/tr>\n
Line Regulation<\/td>\n50mV<\/td>\n<\/tr>\n
Load Regulation<\/td>\n50mV<\/td>\n<\/tr>\n
Protection<\/td>\nReverse battery, short circuit, thermal shutdown<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40 to +125 C<\/td>\n<\/tr>\n
Paquete<\/td>\nTO-263-3 (DDPAK)<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • 0.5V typical dropout at 1A output<\/li>\n
  • Reverse battery protection up to -26V<\/li>\n
  • Mirror image insertion protection<\/li>\n
  • Short circuit and thermal shutdown protection<\/li>\n
  • 64dB PSRR at 120Hz<\/li>\n
  • Quiescent current reduction at high input-output differential<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Automotive voltage regulation<\/li>\n
    • Battery-powered instrumentation<\/li>\n
    • Distributed power systems<\/li>\n
    • Post-regulation for switching supplies<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LM2940SX-5.0\/NOPB from Texas Instruments is a 1A low-dropout positive voltage regulator with 5V fixed output in a TO-263 surface-mount package. The SX denotes tape-and-reel packaging. With 0.5V typical dropout at 1A, 26V maximum input, reverse battery protection, and 64dB PSRR at 120Hz, it is designed for automotive and battery-powered applications. Key Specifications […]<\/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":[138],"class_list":["post-5477","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","chip_brand-ti"],"acf":{"brief_explanation":"1A LDO, 5V fixed, 26V max, TO-263-3","date_code":"","package_case":"TO-263-3 (DDPAK, 10.16 x 15.24 mm)","in_stock":4515,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/lm2940-n.pdf","price":"$1.00 @ 1ku","product_introduction":"The LM2940SX-5.0\/NOPB from Texas Instruments is a 1A low-dropout positive voltage regulator with 5V fixed output in a TO-263 surface-mount package. The SX denotes tape-and-reel packaging. With 0.5V typical dropout at 1A, 26V maximum input, reverse battery protection, and 64dB PSRR at 120Hz, it is designed for automotive and battery-powered applications.","working_principle":"The LM2940SX-5.0\/NOPB operates as described in the product overview. Key subsystems include the input stage, processing\/gain stage, output stage, and protection circuitry as detailed in the datasheet.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>
      1<\/td>VIN<\/td>Input<\/td>Unregulated input (6-26V)<\/td><\/tr>
      2<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      3<\/td>VOUT<\/td>Output<\/td>Regulated 5V output<\/td><\/tr>
      Tab<\/td>GND<\/td>Power<\/td>Ground\/thermal pad<\/td><\/tr><\/table>","application_scenarios":"
      • Automotive voltage regulation<\/li>
      • Battery-powered instrumentation<\/li>
      • Distributed power systems<\/li>
      • Post-regulation for switching supplies<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Package<\/th>Notes<\/th><\/tr>
        LM2940S-5.0\/NOPB<\/td>TI<\/td>TO-263<\/td>Tube packaging<\/td><\/tr>
        LM2940CT-5.0<\/td>TI<\/td>TO-220<\/td>Through-hole version<\/td><\/tr>
        LF50ABDT-TR<\/td>ST<\/td>DPAK<\/td>Lower cost<\/td><\/tr>
        MIC2940A-5.0WT<\/td>Microchip<\/td>TO-263<\/td>Lower dropout<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/5477","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=5477"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/5477\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=5477"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=5477"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=5477"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=5477"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}