{"id":5525,"date":"2026-06-10T04:22:05","date_gmt":"2026-06-10T04:22:05","guid":{"rendered":"https:\/\/materialparts.com\/stlq50c50r\/"},"modified":"2026-06-10T04:22:05","modified_gmt":"2026-06-10T04:22:05","slug":"stlq50c50r","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/stlq50c50r\/","title":{"rendered":"STLQ50C50R"},"content":{"rendered":"

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

The STLQ50C50R from STMicroelectronics is a 500mA ultra-low quiescent current LDO with fixed 5V output in a SOT-89-3 package. The C50 denotes 5V fixed output, R denotes tape and reel. With 0.5uA typical Iq, 2.5-14V input, and 400mV dropout at 500mA, it is optimized for always-on battery-powered applications.<\/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\n
\u062c\u0647\u062f \u0627\u0644\u062e\u0631\u062c<\/td>\n5.0V fixed<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n2.5V to 14V<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\n500 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u062a\u0633\u0631\u0628<\/td>\n400mV @ 500mA<\/td>\n<\/tr>\n
Iq<\/td>\n0.5uA typical (no load)<\/td>\n<\/tr>\n
PSRRR<\/td>\n70dB @ 1kHz<\/td>\n<\/tr>\n
Noise<\/td>\n40uVrms<\/td>\n<\/tr>\n
Accuracy<\/td>\n+\/-2% at 25C<\/td>\n<\/tr>\n
Protection<\/td>\nShort circuit, thermal shutdown<\/td>\n<\/tr>\n
Operating Temp<\/td>\n-40 to +125 C<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOT-89-3 (4.5 x 2.5 mm)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 0.5uA ultra-low quiescent current<\/li>\n
  • 500mA output with 400mV dropout<\/li>\n
  • 2.5-14V wide input voltage range<\/li>\n
  • 70dB PSRR at 1kHz<\/li>\n
  • Stable with 1uF ceramic capacitor<\/li>\n
  • Short circuit and thermal protection<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Battery-powered always-on systems<\/li>\n
    • IoT sensor node power<\/li>\n
    • Automotive ECU standby supply<\/li>\n
    • Smart meter power management<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The STLQ50C50R from STMicroelectronics is a 500mA ultra-low quiescent current LDO with fixed 5V output in a SOT-89-3 package. The C50 denotes 5V fixed output, R denotes tape and reel. With 0.5uA typical Iq, 2.5-14V input, and 400mV dropout at 500mA, it is optimized for always-on battery-powered applications. Key Specifications Output Voltage 5.0V […]<\/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":[],"class_list":["post-5525","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo"],"acf":{"brief_explanation":"LDO, 500mA, 5V fixed, 2.5-14V, ultra-low Iq, SOT-89-3","date_code":"","package_case":"SOT-89-3 (4.5 x 2.5 mm)","in_stock":7459,"datasheet":"https:\/\/www.st.com\/resource\/en\/datasheet\/stlq50.pdf","price":"$0.35 @ 1ku","product_introduction":"The STLQ50C50R from STMicroelectronics is a 500mA ultra-low quiescent current LDO with fixed 5V output in a SOT-89-3 package. The C50 denotes 5V fixed output, R denotes tape and reel. With 0.5uA typical Iq, 2.5-14V input, and 400mV dropout at 500mA, it is optimized for always-on battery-powered applications.","working_principle":"The STLQ50C50R 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>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      2<\/td>VIN<\/td>Input<\/td>Unregulated input (2.5-14V)<\/td><\/tr>
      3<\/td>VOUT<\/td>Output<\/td>Regulated 5V output<\/td><\/tr><\/table>","application_scenarios":"
      • Battery-powered always-on systems<\/li>
      • IoT sensor node power<\/li>
      • Automotive ECU standby supply<\/li>
      • Smart meter power management<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Package<\/th>Notes<\/th><\/tr>
        STLQ50C33R<\/td>ST<\/td>SOT-89-3<\/td>3.3V fixed version<\/td><\/tr>
        TLV70436DBVR<\/td>TI<\/td>SOT-23-5<\/td>24V LDO, higher Iq<\/td><\/tr>
        HT7350<\/td>Holtek<\/td>SOT-89-3<\/td>Low-cost 5V LDO<\/td><\/tr>
        ME6211A50M3G<\/td>Microne<\/td>SOT-89-3<\/td>5V 500mA LDO<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5525","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=5525"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5525\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=5525"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=5525"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=5525"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=5525"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}