{"id":2500,"date":"2026-05-21T01:20:21","date_gmt":"2026-05-21T01:20:21","guid":{"rendered":"https:\/\/materialparts.com\/lm27313xmfx-nopb\/"},"modified":"2026-05-21T01:20:21","modified_gmt":"2026-05-21T01:20:21","slug":"lm27313xmfx-nopb","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/lm27313xmfx-nopb\/","title":{"rendered":"LM27313XMFX\/NOPB"},"content":{"rendered":"

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

The LM27313XMFX\/NOPB from Texas Instruments is a 1.6MHz boost switching regulator with 28V, 1A internal switch. It features current-mode control, 2.7V to 14V input range, adjustable output, internal compensation, and thermal shutdown in a 5-pin SOT-23 package.<\/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\n
\u0627\u0644\u0634\u0631\u0643\u0629 \u0627\u0644\u0645\u0635\u0646\u0639\u0629<\/td>\n\u062a\u0643\u0633\u0627\u0633 \u0625\u0646\u0633\u062a\u0631\u0648\u0645\u0646\u062a\u0633<\/td>\n<\/tr>\n
\u0627\u0644\u0637\u0648\u0628\u0648\u0644\u0648\u062c\u064a\u0627<\/td>\nBoost (Step-Up)<\/td>\n<\/tr>\n
\u0646\u0637\u0627\u0642 \u062c\u0647\u062f \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n2.7V to 14V<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u062e\u0631\u062c<\/td>\nAdjustable (up to 28V)<\/td>\n<\/tr>\n
Switch Current Limit<\/td>\n1A (typical)<\/td>\n<\/tr>\n
\u062a\u0631\u062f\u062f \u0627\u0644\u062a\u062d\u0648\u064a\u0644<\/td>\n1.6MHz (X version)<\/td>\n<\/tr>\n
Switch RDS(ON)<\/td>\n0.19Ohm typical<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0647\u062f\u0626\u0629<\/td>\n2.5mA typical<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0625\u064a\u0642\u0627\u0641 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n10nA typical<\/td>\n<\/tr>\n
Efficiency<\/td>\nUp to 90%<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\n5-SOT-23 (2.9 x 1.6mm)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40C to +125C<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 1.6MHz high switching frequency (X version)<\/li>\n
  • 28V, 1A internal NPN power switch<\/li>\n
  • Adjustable output voltage via external resistors<\/li>\n
  • Current-mode control with internal compensation<\/li>\n
  • 2.7V to 14V wide input voltage range<\/li>\n
  • Low RDS(ON) switch: 0.19Ohm typical<\/li>\n
  • Ultra-low shutdown current: 10nA<\/li>\n
  • Thermal shutdown protection<\/li>\n
  • Small 5-pin SOT-23 package<\/li>\n
  • Only 5 external components required<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • LED driver boost supplies<\/li>\n
    • OLED display bias generation<\/li>\n
    • White LED backlight for LCD displays<\/li>\n
    • 12V to 18V supply from 5V or 3.3V<\/li>\n
    • Sealed lead-acid battery charging<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LM27313XMFX\/NOPB from Texas Instruments is a 1.6MHz boost switching regulator with 28V, 1A internal switch. It features current-mode control, 2.7V to 14V input range, adjustable output, internal compensation, and thermal shutdown in a 5-pin SOT-23 package. Key Specifications Manufacturer Texas Instruments Topology Boost (Step-Up) Input Voltage Range 2.7V to 14V Output Voltage […]<\/p>\n","protected":false},"author":2,"featured_media":2783,"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-2500","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":"1.6MHz boost regulator, 28V\/1A switch, 2.7-14Vin, adjustable Vout, SOT-23-5","date_code":"","package_case":"5-SOT-23 (2.9 x 1.6 x 1.15mm)","in_stock":8940,"datasheet":"https:\/\/www.ti.com\/product\/LM27313","price":"$1.20 @ 1ku","product_introduction":"The Texas Instruments LM27313XMFX\/NOPB is a high-efficiency boost switching regulator featuring a 28V, 1A internal NPN power switch. The 1.6MHz switching frequency allows the use of tiny surface-mount inductors and capacitors, minimizing solution footprint. The device operates from 2.7V to 14V input and provides an adjustable output voltage set by two external resistors. Current-mode control with internal compensation simplifies design and provides excellent line and load regulation. The low 0.19Ohm switch on-resistance and 10nA shutdown current optimize efficiency across the operating range. With only five external components required, the LM27313 is one of the simplest boost converter solutions available in the tiny SOT-23 package.","working_principle":"The LM27313XMFX\/NOPB operates as a fixed-frequency current-mode boost converter: 1) Power Stage: The internal 28V, 1A NPN transistor acts as the switching element. During on-time, current ramps up in the external inductor, storing energy. During off-time, the inductor releases energy through the external Schottky diode to the output capacitor and load. 2) Current-Mode Control: The oscillator sets the 1.6MHz switching frequency. The error amplifier compares the FB pin voltage with the internal 1.23V reference and adjusts the peak switch current threshold. When the current-sense signal reaches this threshold, the switch turns off for the remainder of the cycle. This provides inherent input voltage feedforward and single-pole loop response. 3) Soft-Start: The internal soft-start circuit gradually increases the current limit on start-up, preventing excessive inrush current. 4) Protection: Cycle-by-cycle current limiting protects the switch during overload. Thermal shutdown at 165C junction temperature disables the device during thermal stress.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>SW<\/td>Output<\/td>Switch output (connect to inductor and Schottky)<\/td><\/tr>
      2<\/td>GND<\/td>Ground<\/td>Ground<\/td><\/tr>
      3<\/td>FB<\/td>Input<\/td>Feedback (1.23V reference, connect to resistor divider)<\/td><\/tr>
      4<\/td>SHDN<\/td>Input<\/td>Shutdown (active low, pull low to disable)<\/td><\/tr>
      5<\/td>VIN<\/td>Power<\/td>Input supply (2.7V to 14V)<\/td><\/tr><\/table>","application_scenarios":"
      • 5V to 12V boost for OLED display bias from single Li-ion cell<\/li>
      • 3.3V to 15V white LED backlight driver for LCD panels<\/li>
      • 12V supply generation from 5V USB power<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>LM27313YMFX\/NOPB<\/td>SOT-23-5<\/td>600kHz version, lower frequency<\/td><\/tr>
        TI<\/td>LMR62421XMF\/NOPB<\/td>SOT-23-5<\/td>2.1A, 24V, similar boost<\/td><\/tr>
        Monolithic Power<\/td>MP1542DK-LF-Z<\/td>SOT-23-5<\/td>1.5A, 25V boost, 1.3MHz<\/td><\/tr>
        onsemi<\/td>NCP1402SN25T1G<\/td>SOT-23-5<\/td>2.5V fixed, 200mA boost<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/2500","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=2500"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/2500\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media\/2783"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=2500"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=2500"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=2500"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=2500"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}