{"id":10644,"date":"2026-07-20T09:17:04","date_gmt":"2026-07-20T09:17:04","guid":{"rendered":"https:\/\/ic-vendor.com\/lmr10510ymfx-nopb\/"},"modified":"2026-07-20T09:17:04","modified_gmt":"2026-07-20T09:17:04","slug":"lmr10510ymfx-nopb","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/ar\/lmr10510ymfx-nopb\/","title":{"rendered":"LMR10510YMFX\/NOPB"},"content":{"rendered":"

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

The LMR10510YMFX\/NOPB is a 5.5V input, 1A step-down DC-DC switching regulator from Texas Instruments, packaged in a 5-pin SOT-23 (DMF) package. The Y variant features a 3MHz switching frequency, enabling the use of extremely small external components. With an input range of 3V to 5.5V and adjustable output from 0.6V to 4.5V, it is ideal for space-constrained point-of-load conversion.<\/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
\u0627\u0644\u0648\u0638\u064a\u0641\u0629<\/td>\nStep-Down DC-DC Converter<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n3V to 5.5V<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u062e\u0631\u062c<\/td>\n0.6V to 4.5V (adjustable)<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\n1A<\/td>\n<\/tr>\n
\u062a\u0631\u062f\u062f \u0627\u0644\u062a\u062d\u0648\u064a\u0644<\/td>\n3MHz<\/td>\n<\/tr>\n
Internal MOSFET RDS(on)<\/td>\n130m\u03a9 (PMOS)<\/td>\n<\/tr>\n
Shutdown IQ<\/td>\n30nA (typical)<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\n5-pin SOT-23 (2.9 \u00d7 1.6 mm)<\/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 +125\u00b0C (TJ)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 3MHz switching frequency for smallest solution size<\/li>\n
  • Integrated 130m\u03a9 PMOS switch for 1A output<\/li>\n
  • Ultra-low 30nA shutdown quiescent current<\/li>\n
  • Internal soft start to reduce inrush current<\/li>\n
  • Current-mode PWM with internal 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
    • Point-of-load conversion from 3.3V\/5V rails<\/li>\n
    • Space-constrained portable devices<\/li>\n
    • Battery-powered handheld instruments<\/li>\n
    • Industrial distributed power architectures<\/li>\n
    • USB-powered devices<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LMR10510YMFX\/NOPB is a 5.5V input, 1A step-down DC-DC switching regulator from Texas Instruments, packaged in a 5-pin SOT-23 (DMF) package. The Y variant features a 3MHz switching frequency, enabling the use of extremely small external components. With an input range of 3V to 5.5V and adjustable output from 0.6V to 4.5V, it […]<\/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":[31,13],"tags":[1985],"chip_brand":[138],"class_list":["post-10644","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","tag-lmr10510ymfx-nopb","chip_brand-ti"],"acf":{"brief_explanation":"1A buck DC-DC, 3-5.5V in, 0.6-4.5V out, 3MHz, 30nA shutdown, SOT-23-5","date_code":"","package_case":"SOT-23-5 (2.9 \u00d7 1.6 \u00d7 1.0 mm)","in_stock":7653,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/lmr10510.pdf","price":"$0.58 @ 1ku","product_introduction":"The LMR10510 is a monolithic high-frequency PWM step-down DC-DC converter available in a tiny 5-pin SOT-23 or 6-pin WSON package. The Y variant switches at 3MHz, allowing the use of chip-scale inductors and capacitors for the smallest possible solution footprint. It provides up to 1A output current with an integrated 130m\u03a9 PMOS switch, achieving efficiencies up to 93%. The device is internally compensated and requires minimal external components, simplifying design and reducing BOM cost. With 30nA shutdown current and internal soft start, it is ideal for battery-powered and space-constrained applications.","working_principle":"The LMR10510 employs a fixed-frequency current-mode PWM control architecture. At each clock cycle, the internal PMOS switch turns on, allowing current to flow through the external inductor. The inductor current is sensed and compared against the error amplifier output to determine the on-time. When the switch turns off, the inductor current flows through the external Schottky catch diode. The output voltage is sensed through the FB pin via a resistor divider and compared with the 0.6V internal reference by the error amplifier. The 3MHz switching frequency allows extremely small inductors (0.47-2.2\u03bcH) and capacitors while maintaining high efficiency. Current-mode control provides fast transient response and cycle-by-cycle current limiting for robust operation.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>SW<\/td>Output<\/td>Switch node \u2014 connect to inductor and catch diode<\/td><\/tr>
      2<\/td>GND<\/td>Power<\/td>Signal and power ground<\/td><\/tr>
      3<\/td>FB<\/td>Input<\/td>Feedback \u2014 connect resistor divider from output<\/td><\/tr>
      4<\/td>EN<\/td>Input<\/td>Enable \u2014 logic high enables operation<\/td><\/tr>
      5<\/td>VIN<\/td>Power<\/td>Input supply voltage (3-5.5V)<\/td><\/tr><\/table>","application_scenarios":"
      • 3.3V to 1.2V core voltage POL conversion in FPGAs<\/li>
      • 5V to 3.3V regulation in USB-powered devices<\/li>
      • Li-ion battery to 1.8V system rail conversion<\/li>
      • Portable instrument distributed power architecture<\/li>
      • Compact IoT device power supply<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>LMR10510XMFX\/NOPB<\/td>SOT-23-5<\/td>1.6MHz version (X suffix)<\/td><\/tr>
        TI<\/td>LMR62421<\/td>SOT-23-5<\/td>Similar buck, higher input<\/td><\/tr>
        Monolithic Power<\/td>MP2143<\/td>TSOT-23-5<\/td>1A buck, 1.5MHz<\/td><\/tr>
        Richtek<\/td>RT8059<\/td>WDFN-6<\/td>1A buck, 1.5MHz<\/td><\/tr>
        Maxim<\/td>MAX8986<\/td>WLP-9<\/td>1A buck, 4MHz<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/10644","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/comments?post=10644"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/10644\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/media?parent=10644"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/categories?post=10644"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/tags?post=10644"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=10644"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}