{"id":7049,"date":"2026-06-23T02:55:59","date_gmt":"2026-06-23T02:55:59","guid":{"rendered":"https:\/\/materialparts.com\/l7805acv-dg\/"},"modified":"2026-06-23T02:55:59","modified_gmt":"2026-06-23T02:55:59","slug":"l7805acv-dg","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/l7805acv-dg\/","title":{"rendered":"L7805ACV-DG"},"content":{"rendered":"

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

The L7805ACV-DG from STMicroelectronics is a precision 5 V fixed-output positive voltage regulator in a TO-220 Dual Gauge package, capable of delivering up to 1.5 A output current. Part of the L78xxAC series with 2% output voltage tolerance, it features internal current limiting, thermal shutdown, and safe operating area protection, making it an industry-standard solution for local on-card regulation in power supplies and embedded systems.<\/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\n\n
\u062c\u0647\u062f \u0627\u0644\u062e\u0631\u062c<\/td>\n5 V (fixed, \u00b12%)<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\nUp to 1.5 A<\/td>\n<\/tr>\n
\u0646\u0637\u0627\u0642 \u062c\u0647\u062f \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n7 V to 35 V<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u062a\u0633\u0631\u0628<\/td>\n2 V (typical)<\/td>\n<\/tr>\n
Line Regulation<\/td>\n50 mV (typical)<\/td>\n<\/tr>\n
Load Regulation<\/td>\n100 mV (typical)<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0647\u062f\u0626\u0629<\/td>\n6 mA (typical)<\/td>\n<\/tr>\n
Ripple Rejection<\/td>\n68 dB (typical)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n0\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Precision 2% output voltage tolerance (A version) guaranteed over extended temperature range<\/li>\n
  • Internal thermal shutdown and short-circuit current limiting for robust protection<\/li>\n
  • Safe operating area (SOA) protection for output transistors<\/li>\n
  • Dual Gauge TO-220 package for universal footprint compatibility<\/li>\n
  • No external components required for basic operation<\/li>\n
  • Can be used with external components for adjustable voltage and current output<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Local on-card voltage regulation in embedded systems<\/li>\n
    • 5 V power supply for microcontrollers and digital logic<\/li>\n
    • Battery charger and power management circuits<\/li>\n
    • Adjustable voltage regulator configurations<\/li>\n
    • Current regulator and high-current supply designs<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The L7805ACV-DG from STMicroelectronics is a precision 5 V fixed-output positive voltage regulator in a TO-220 Dual Gauge package, capable of delivering up to 1.5 A output current. Part of the L78xxAC series with 2% output voltage tolerance, it features internal current limiting, thermal shutdown, and safe operating area protection, making it an […]<\/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":[142],"class_list":["post-7049","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","chip_brand-st"],"acf":{"brief_explanation":"5V fixed, 1.5A positive linear voltage regulator, 2% tolerance, TO-220 Dual Gauge, thermal\/short-circuit protection","date_code":"","package_case":"TO-220-3 (10.4 x 14.9 x 4.6 mm) Dual Gauge","in_stock":12087,"datasheet":"https:\/\/www.st.com\/resource\/en\/datasheet\/l78.pdf","price":"$0.29 @ 1ku","product_introduction":"The L7805ACV-DG is a three-terminal positive voltage regulator from STMicroelectronics' L78xxAC series, providing a fixed 5 V output at up to 1.5 A. The A-version guarantees 2% output voltage tolerance over the extended temperature range. Internal current limiting, thermal shutdown, and safe operating area protection make the device essentially indestructible under normal operating conditions. The Dual Gauge TO-220 package accommodates both standard and fine-pitch PCB layouts, enhancing manufacturing flexibility. Although designed primarily as a fixed voltage regulator, external components can be added to achieve adjustable output voltages and currents.","working_principle":"The L7805ACV-DG uses a series-pass regulator topology with three main functional blocks. (1) Reference and Error Amplifier: A bandgap voltage reference generates a precise internal reference voltage, compared against a resistive divider sample of the output voltage. The error amplifier drives the pass transistor to maintain the output at 5 V regardless of input or load variations. (2) Pass Transistor and Driver: A Darlington-connected NPN pass transistor in series with the input delivers load current up to 1.5 A with a typical dropout of 2 V. The driver stage ensures adequate base current under all load conditions. (3) Protection Circuits: Current limiting activates when output current exceeds approximately 2.2 A, protecting against short circuits. A thermal shutdown circuit disables the pass transistor when junction temperature exceeds approximately 150\u00b0C. Safe operating area protection limits the pass transistor power dissipation during combined high-voltage and high-current conditions.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>INPUT<\/td>Power<\/td>Unregulated input voltage (7-35V)<\/td><\/tr>
      2<\/td>GND<\/td>Ground<\/td>Common ground reference<\/td><\/tr>
      3<\/td>OUTPUT<\/td>Power<\/td>Regulated 5V output<\/td><\/tr><\/table>","application_scenarios":"
      • Local 5V regulation on PCB cards to eliminate single-point distribution losses<\/li>
      • Microcontroller and digital logic power supply in embedded systems<\/li>
      • Battery-powered device regulation with adjustable output configurations<\/li>
      • Constant current source for LED driving or battery charging<\/li>
      • Split-rail power supply designs using complementary negative regulators<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        STMicroelectronics<\/td>L7805CV<\/td>TO-220<\/td>4% tolerance, single gauge<\/td><\/tr>
        onsemi<\/td>MC7805ACTG<\/td>TO-220<\/td>2% tolerance, equivalent<\/td><\/tr>
        Texas Instruments<\/td>UA7805CKTTR<\/td>TO-220<\/td>1.5A, industry standard<\/td><\/tr>
        Infineon<\/td>ITS5215L<\/td>TO-220<\/td>5V, 1.5A, similar spec<\/td><\/tr>
        Microchip<\/td>MCP1827-5002E\/AB<\/td>TO-220<\/td>LDO alternative, low dropout<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7049","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=7049"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7049\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=7049"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=7049"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=7049"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=7049"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}