{"id":10638,"date":"2026-07-20T09:16:53","date_gmt":"2026-07-20T09:16:53","guid":{"rendered":"https:\/\/ic-vendor.com\/tps55340rter\/"},"modified":"2026-07-20T09:16:53","modified_gmt":"2026-07-20T09:16:53","slug":"tps55340rter","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/tps55340rter\/","title":{"rendered":"TPS55340RTER"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The TPS55340RTER is a 5A integrated boost converter from Texas Instruments with a wide input voltage range of 2.7V to 38V. It features an integrated 5A\/40m\u03a9 N-channel MOSFET and operates at a fixed 500 kHz switching frequency with optional external synchronization. Packaged in a 16-pin VQFN (RTE) package, it is ideal for boost, SEPIC, and flyback converter topologies.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n
\u529f\u80fd<\/td>\nBoost\/SEPIC\/Flyback DC-DC Converter<\/td>\n<\/tr>\n
\u8f93\u5165\u7535\u538b<\/td>\n2.7V to 38V<\/td>\n<\/tr>\n
Output Voltage<\/td>\nUp to 38V<\/td>\n<\/tr>\n
Switch Current<\/td>\n5A<\/td>\n<\/tr>\n
Switch RDS(on)<\/td>\n40m\u03a9<\/td>\n<\/tr>\n
\u5f00\u5173\u9891\u7387<\/td>\n500 kHz (fixed)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n16-pin VQFN (3.0 \u00d7 3.0 mm)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +150\u00b0C (TJ)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Wide 2.7V to 38V input voltage range<\/li>\n
  • Integrated 5A, 40m\u03a9 N-channel MOSFET<\/li>\n
  • 500 kHz fixed frequency with external synchronization<\/li>\n
  • Programmable soft start and current limit<\/li>\n
  • Supports boost, SEPIC, and flyback topologies<\/li>\n
  • Thermal shutdown and overcurrent protection<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • LED backlight drivers<\/li>\n
    • Industrial power supplies<\/li>\n
    • Automotive battery-powered systems<\/li>\n
    • SEPIC converters for battery-powered devices<\/li>\n
    • USB Power Delivery boost stages<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS55340RTER is a 5A integrated boost converter from Texas Instruments with a wide input voltage range of 2.7V to 38V. It features an integrated 5A\/40m\u03a9 N-channel MOSFET and operates at a fixed 500 kHz switching frequency with optional external synchronization. Packaged in a 16-pin VQFN (RTE) package, it is ideal for boost, […]<\/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":[1979],"chip_brand":[138],"class_list":["post-10638","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","tag-tps55340rter","chip_brand-ti"],"acf":{"brief_explanation":"5A boost\/SEPIC DC-DC converter, 2.7-38V input, integrated MOSFET, 500kHz, VQFN-16","date_code":"","package_case":"VQFN-16 (3.0 \u00d7 3.0 \u00d7 0.8 mm)","in_stock":5890,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps55340.pdf","price":"$1.75 @ 1ku","product_introduction":"The TPS55340 is a monolithic non-synchronous boost converter with an integrated 5A, 40m\u03a9 N-channel MOSFET switch. It supports a wide input voltage range from 2.7V to 38V, making it suitable for a variety of power conversion applications including boost, SEPIC, and flyback topologies. The device operates at a fixed 500 kHz switching frequency that can be synchronized to an external clock, and features programmable soft start, cycle-by-cycle current limit, and thermal shutdown protection. The compact VQFN package minimizes board space while delivering high power density.","working_principle":"The TPS55340 uses a current-mode PWM control architecture. An internal error amplifier compares the feedback voltage (FB pin) with an internal 1.204V reference and drives the PWM comparator. The inductor current is sensed and compared against the error amplifier output on a cycle-by-cycle basis to regulate the output voltage. The integrated N-channel MOSFET switches at 500 kHz, and the external Schottky diode provides the rectification path during the off-time. In SEPIC or flyback configurations, the same control loop operates but the energy transfer occurs through a coupling capacitor or flyback transformer respectively. The soft-start function ramps the reference voltage gradually to limit inrush current at startup.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>EN<\/td>Input<\/td>Enable \u2014 logic high enables the device<\/td><\/tr>
      2<\/td>VIN<\/td>Power<\/td>Input supply voltage<\/td><\/tr>
      3<\/td>SW<\/td>Output<\/td>Switch node \u2014 connect to inductor and Schottky diode<\/td><\/tr>
      4<\/td>SW<\/td>Output<\/td>Switch node \u2014 connect to inductor and Schottky diode<\/td><\/tr>
      5<\/td>PGND<\/td>Power<\/td>Power ground<\/td><\/tr>
      6<\/td>PGND<\/td>Power<\/td>Power ground<\/td><\/tr>
      7<\/td>AGND<\/td>Power<\/td>Analog ground<\/td><\/tr>
      8<\/td>FB<\/td>Input<\/td>Feedback \u2014 connect resistor divider from output<\/td><\/tr>
      9<\/td>COMP<\/td>Output<\/td>Error amplifier output \u2014 connect compensation network<\/td><\/tr>
      10<\/td>SS<\/td>Output<\/td>Soft start \u2014 connect external capacitor<\/td><\/tr>
      11<\/td>FSYNC<\/td>Input<\/td>Frequency sync \u2014 apply external clock or tie to VCC<\/td><\/tr>
      12<\/td>VCC<\/td>Output<\/td>Internal 5V LDO output \u2014 bypass with capacitor<\/td><\/tr>
      13<\/td>ILIM<\/td>Input<\/td>Current limit programming resistor<\/td><\/tr>
      14<\/td>PWRGD<\/td>Output<\/td>Power good open-drain output<\/td><\/tr>
      15<\/td>PGND<\/td>Power<\/td>Power ground<\/td><\/tr>
      16<\/td>SW<\/td>Output<\/td>Switch node<\/td><\/tr><\/table>","application_scenarios":"
      • 12V\/24V to 36V LED backlight driver in industrial displays<\/li>
      • SEPIC converter for single-cell Li-ion to 12V rail<\/li>
      • USB PD boost stage from 5V to 9V\/15V\/20V<\/li>
      • Automotive battery pre-boost for infotainment systems<\/li>
      • Industrial 24V to 48V power conversion<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>LMR14206<\/td>SOT-23-6<\/td>Lower current, 42V input boost<\/td><\/tr>
        TI<\/td>TPS61175<\/td>HTSSOP-14<\/td>3A boost, 3-24V input<\/td><\/tr>
        Monolithic Power<\/td>MP8759<\/td>QFN-16<\/td>5A boost converter<\/td><\/tr>
        Richtek<\/td>RT8560<\/td>WQFN-16<\/td>Similar boost converter<\/td><\/tr>
        Infineon<\/td>TLE8386<\/td>PG-DSO-14<\/td>Automotive grade boost<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10638","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/comments?post=10638"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10638\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=10638"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=10638"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=10638"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=10638"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}