{"id":2743,"date":"2026-05-25T02:06:08","date_gmt":"2026-05-25T02:06:08","guid":{"rendered":"https:\/\/materialparts.com\/lm5165ydrcr\/"},"modified":"2026-05-25T02:06:08","modified_gmt":"2026-05-25T02:06:08","slug":"lm5165ydrcr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/lm5165ydrcr\/","title":{"rendered":"LM5165YDRCR"},"content":{"rendered":"

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

The LM5165YDRCR from Texas Instruments is a 150mA synchronous buck converter with 4.5V to 65V input in a SOT-23-6 package. Using constant on-time (COT) control with integrated high-side and low-side MOSFETs, it requires no external compensation and achieves up to 92% efficiency.<\/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
\u062c\u0647\u062f \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n4.5V ~ 65V<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\n150mA<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u062e\u0631\u062c<\/td>\n1V ~ VIN x 0.9 adjustable<\/td>\n<\/tr>\n
\u062a\u0631\u062f\u062f \u0627\u0644\u062a\u062d\u0648\u064a\u0644<\/td>\n~600kHz (adaptive)<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0647\u062f\u0626\u0629<\/td>\n13uA (standby)<\/td>\n<\/tr>\n
Integrated MOSFETs<\/td>\nYes (high-side + low-side)<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOT-23-6<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40\u00b0C to +150\u00b0C (TJ)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 4.5V to 65V wide input voltage range<\/li>\n
  • Integrated synchronous MOSFETs<\/li>\n
  • 13uA standby quiescent current<\/li>\n
  • Constant on-time (COT) control – no compensation needed<\/li>\n
  • Adjustable output with precision feedback<\/li>\n
  • Internal soft-start and current limit protection<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Industrial 24V\/48V to low-voltage POL<\/li>\n
    • Building automation and HVAC power<\/li>\n
    • Telecom 48V bus power conversion<\/li>\n
    • Battery-powered instrumentation<\/li>\n
    • Automotive auxiliary power rails<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LM5165YDRCR from Texas Instruments is a 150mA synchronous buck converter with 4.5V to 65V input in a SOT-23-6 package. Using constant on-time (COT) control with integrated high-side and low-side MOSFETs, it requires no external compensation and achieves up to 92% efficiency. Key Specifications Input Voltage 4.5V ~ 65V Output Current 150mA Output […]<\/p>\n","protected":false},"author":2,"featured_media":2757,"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-2743","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"150mA sync buck, 4.5-65V in, COT control, 13uA Iq, SOT-23-6","date_code":"","package_case":"SOT-23-6 (2.9 x 1.6 x 1.1 mm)","in_stock":14834,"datasheet":"https:\/\/www.ti.com\/product\/LM5165","price":"$1.15 @ 1ku","product_introduction":"The LM5165YDRCR from Texas Instruments is a 150mA synchronous buck converter in a tiny SOT-23-6 package supporting 4.5V to 65V input. Using constant on-time (COT) control with integrated high-side and low-side MOSFETs, it requires no external compensation components. The 13uA standby quiescent current extends battery life in always-on applications. The adaptive on-time maintains near-constant switching frequency while providing excellent transient response. Internal soft-start prevents inrush current, and cycle-by-cycle current limit provides robust overload protection. The device is ideal for high-voltage industrial bus to low-voltage POL conversion.","working_principle":"The LM5165YDRCR uses constant on-time (COT) control, a hysteretic-derived topology where the high-side MOSFET is turned on for a fixed on-time when the output voltage drops below the regulation threshold. The on-time is proportional to VOUT\/VIN to maintain approximately constant switching frequency. During the on-time, current flows from VIN through the inductor to VOUT. When the on-time expires, the high-side MOSFET turns off and the low-side MOSFET turns on, allowing inductor current to freewheel. When the output voltage again drops below the threshold, the cycle repeats. In Eco-mode at light loads, the low-side MOSFET turns off when inductor current reaches zero, enabling discontinuous conduction mode (DCM) with higher efficiency.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>FB<\/td>Input<\/td>Output voltage feedback<\/td><\/tr>
      2<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      3<\/td>EN<\/td>Input<\/td>Enable (internal pull-up)<\/td><\/tr>
      4<\/td>SW<\/td>Power<\/td>Switch node (inductor connection)<\/td><\/tr>
      5<\/td>VIN<\/td>Power<\/td>Input voltage (4.5-65V)<\/td><\/tr>
      6<\/td>VCC<\/td>Power<\/td>Internal 3.3V LDO output (bypass cap)<\/td><\/tr><\/table>","application_scenarios":"
      • 24V\/48V industrial bus to 3.3V\/5V POL conversion<\/li>
      • Building automation HVAC sensor power supply<\/li>
      • Telecom -48V bus to low-voltage regulation<\/li>
      • Battery-powered field instrumentation<\/li>
      • Automotive 12V\/24V auxiliary power rails<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>LM5164YDRRR<\/td>SOT-23-6<\/td>100mA, 100V, higher voltage<\/td><\/tr>
        TI<\/td>LM5166YDRRR<\/td>SOT-23-6<\/td>300mA, 65V, higher current<\/td><\/tr>
        Monolithic Power<\/td>MP8714DN<\/td>SOT-23-6<\/td>150mA, 60V sync buck<\/td><\/tr>
        ADI<\/td>LTC3630EMSE<\/td>MSOP-12<\/td>500mA, 65V, higher current<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/2743","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=2743"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/2743\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media\/2757"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=2743"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=2743"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=2743"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=2743"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}