{"id":5478,"date":"2026-06-10T04:01:24","date_gmt":"2026-06-10T04:01:24","guid":{"rendered":"https:\/\/materialparts.com\/lm2596s-5-0-nopb\/"},"modified":"2026-06-10T04:01:24","modified_gmt":"2026-06-10T04:01:24","slug":"lm2596s-5-0-nopb","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/lm2596s-5-0-nopb\/","title":{"rendered":"LM2596S-5.0\/NOPB"},"content":{"rendered":"

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

The LM2596S-5.0\/NOPB from Texas Instruments is a SIMPLE SWITCHER 3A step-down voltage regulator with fixed 5V output in a 5-pin TO-263 surface-mount package. Operating at 150kHz fixed frequency with up to 40V input, it requires only 4 external components and achieves up to 93% efficiency. The ON\/OFF pin enables TTL-level shutdown with 80uA standby current.<\/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\n
\u062c\u0647\u062f \u0627\u0644\u062e\u0631\u062c<\/td>\n5.0V fixed (also 3.3V, 12V, adj)<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n4.5V to 40V<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\n3A<\/td>\n<\/tr>\n
\u062a\u0631\u062f\u062f \u0627\u0644\u062a\u062d\u0648\u064a\u0644<\/td>\n150kHz fixed<\/td>\n<\/tr>\n
Efficiency<\/td>\nUp to 93%<\/td>\n<\/tr>\n
\u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0627\u062d\u062a\u064a\u0627\u0637\u064a<\/td>\n80uA typical (ON\/OFF=high)<\/td>\n<\/tr>\n
Output Tolerance<\/td>\n+\/-4% max over line and load<\/td>\n<\/tr>\n
Protection<\/td>\nThermal shutdown, current limit<\/td>\n<\/tr>\n
Operating Temp<\/td>\n-40 to +125 C (TJ)<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nTO-263-5 (DDPAK)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 3A output with only 4 external components<\/li>\n
  • 150kHz fixed frequency for small filter components<\/li>\n
  • TTL-level ON\/OFF shutdown control<\/li>\n
  • 80uA low standby current<\/li>\n
  • Internal frequency compensation<\/li>\n
  • Thermal shutdown and current limit protection<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Distributed power systems (5V from 12V\/24V)<\/li>\n
    • Battery chargers<\/li>\n
    • LED drivers<\/li>\n
    • Embedded system power supplies<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LM2596S-5.0\/NOPB from Texas Instruments is a SIMPLE SWITCHER 3A step-down voltage regulator with fixed 5V output in a 5-pin TO-263 surface-mount package. Operating at 150kHz fixed frequency with up to 40V input, it requires only 4 external components and achieves up to 93% efficiency. The ON\/OFF pin enables TTL-level shutdown with 80uA […]<\/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":[31,13],"tags":[],"chip_brand":[138],"class_list":["post-5478","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"3A buck, 5V fixed, 40V max, 150kHz, TO-263-5","date_code":"","package_case":"TO-263-5 (DDPAK-5, 10.16 x 15.24 mm)","in_stock":7240,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/lm2596.pdf","price":"$2.51 @ 1ku","product_introduction":"The LM2596S-5.0\/NOPB from Texas Instruments is a SIMPLE SWITCHER 3A step-down voltage regulator with fixed 5V output in a 5-pin TO-263 surface-mount package. Operating at 150kHz fixed frequency with up to 40V input, it requires only 4 external components and achieves up to 93% efficiency. The ON\/OFF pin enables TTL-level shutdown with 80uA standby current.","working_principle":"The LM2596S-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 (4.5-40V)<\/td><\/tr>
      2<\/td>OUTPUT<\/td>Output<\/td>Switch output to inductor<\/td><\/tr>
      3<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      4<\/td>FEEDBACK<\/td>Input<\/td>Feedback (connect to output for fixed ver)<\/td><\/tr>
      5<\/td>ON\/OFF<\/td>Input<\/td>Shutdown control (high=off)<\/td><\/tr>
      Tab<\/td>GND<\/td>Power<\/td>Ground\/thermal pad<\/td><\/tr><\/table>","application_scenarios":"
      • Distributed power systems (5V from 12V\/24V)<\/li>
      • Battery chargers<\/li>
      • LED drivers<\/li>
      • Embedded system power supplies<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Package<\/th>Notes<\/th><\/tr>
        LM2596T-5.0<\/td>TI<\/td>TO-220-5<\/td>Through-hole version<\/td><\/tr>
        LM2676S-5.0<\/td>TI<\/td>TO-263-7<\/td>Higher efficiency, 260kHz<\/td><\/tr>
        MP1584EN-LF-Z<\/td>MPS<\/td>SOIC-8<\/td>1.5MHz, smaller<\/td><\/tr>
        LMR33630ADDFR<\/td>TI<\/td>SOT-23-THIN<\/td>Modern replacement<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5478","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=5478"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5478\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=5478"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=5478"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=5478"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=5478"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}