{"id":3721,"date":"2026-06-08T02:19:47","date_gmt":"2026-06-08T02:19:47","guid":{"rendered":"https:\/\/materialparts.com\/tps54318rter\/"},"modified":"2026-06-08T02:19:47","modified_gmt":"2026-06-08T02:19:47","slug":"tps54318rter","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/tps54318rter\/","title":{"rendered":"TPS54318RTER"},"content":{"rendered":"

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

The TPS54318RTER from Texas Instruments is a 2.95V to 6V input, 3A synchronous step-down DC-DC converter with integrated MOSFETs. It features 200kHz to 2MHz switching frequency, adjustable soft start, and power-good output in a 3mm x 3mm WQFN-16 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
\u0627\u0644\u0637\u0648\u0628\u0648\u0644\u0648\u062c\u064a\u0627<\/td>\nSynchronous Buck<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n2.95V to 6V<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u062e\u0631\u062c<\/td>\n0.8V to 4.5V (adjustable)<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\n3A<\/td>\n<\/tr>\n
\u062a\u0631\u062f\u062f \u0627\u0644\u062a\u062d\u0648\u064a\u0644<\/td>\n200kHz to 2MHz (adjustable)<\/td>\n<\/tr>\n
MOSFET RDS(on)<\/td>\n30mOhm (typ, both HS and LS)<\/td>\n<\/tr>\n
Voltage Reference<\/td>\n0.8V +\/-1%<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0647\u062f\u0626\u0629<\/td>\n350uA (typ)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 to 150 C (junction)<\/td>\n<\/tr>\n<\/table>\n

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    \n
  • Two integrated 30mOhm MOSFETs for high efficiency<\/li>\n
  • Adjustable switching frequency: 200kHz to 2MHz<\/li>\n
  • +\/-1% voltage reference accuracy over temperature<\/li>\n
  • External clock synchronization<\/li>\n
  • Adjustable soft start\/sequencing<\/li>\n
  • Undervoltage and overvoltage power-good output<\/li>\n
  • Cycle-by-cycle current limit with thermal foldback<\/li>\n
  • Safe start-up into prebiased output<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Point-of-load regulation for DSP, FPGA, ASIC<\/li>\n
    • Broadband and telecom infrastructure<\/li>\n
    • Low-voltage, high-density power systems<\/li>\n
    • Server and storage power supplies<\/li>\n
    • Portable and battery-powered equipment<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS54318RTER from Texas Instruments is a 2.95V to 6V input, 3A synchronous step-down DC-DC converter with integrated MOSFETs. It features 200kHz to 2MHz switching frequency, adjustable soft start, and power-good output in a 3mm x 3mm WQFN-16 package. Key Specifications Topology Synchronous Buck Input Voltage 2.95V to 6V Output Voltage 0.8V to […]<\/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":[31,13],"tags":[],"chip_brand":[138],"class_list":["post-3721","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"3A sync buck DC-DC, 2.95-6V in, 0.8-4.5V out, 2MHz, integrated FETs, WQFN-16","date_code":"","package_case":"WQFN-16 (3.0 x 3.0 x 0.75 mm)","in_stock":4886,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps54318.pdf","price":"$1.30 @ 1ku","product_introduction":"The TPS54318RTER from Texas Instruments is a full-featured 6V, 3A synchronous step-down current-mode converter with two integrated 30mOhm MOSFETs. The device enables small designs by integrating the power MOSFETs, implementing current-mode control to reduce external component count, and supporting up to 2MHz switching frequency to minimize inductor size. The 0.8V +\/-1% voltage reference provides accurate regulation over the full -40 to 150 C junction temperature range. A 350uA typical operating quiescent current maximizes light-load efficiency, while the EN pin reduces shutdown current to 2uA. Features include adjustable soft start for controlled output ramp, power-good output with undervoltage\/overvoltage thresholds, external clock synchronization, and safe start-up into prebiased outputs. The device is packaged in a thermally enhanced 3mm x 3mm WQFN-16 package.","working_principle":"The TPS54318RTER operates as a current-mode synchronous buck converter. Key subsystems include: (1) Current-Mode PWM Controller - compares the output of the voltage error amplifier with the high-side switch current to set the duty cycle; this provides inherent cycle-by-cycle current limiting and simplified loop compensation; (2) Integrated MOSFETs - a 30mOhm high-side NMOS switch and 30mOhm low-side NMOS synchronous rectifier are integrated on-die; (3) Bootstrap Circuit - an external bootstrap capacitor between BOOT and PH provides gate drive voltage above VIN for the high-side NMOS; (4) Error Amplifier - the COMP pin allows external Type-II or Type-III compensation networks; (5) Soft Start - an external capacitor on the SS\/CLK pin programs the startup ramp time; (6) Power Good - an open-drain PWRGD output asserts when VOUT is within 93%-107% of the target; (7) Protection - cycle-by-cycle current limit, thermal shutdown with frequency foldback, and undervoltage lockout.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>GND<\/td>Ground<\/td>Power ground<\/td><\/tr>
      2<\/td>PH<\/td>Power<\/td>Phase node (switch output)<\/td><\/tr>
      3<\/td>PH<\/td>Power<\/td>Phase node (switch output)<\/td><\/tr>
      4<\/td>VIN<\/td>Power<\/td>Input voltage supply<\/td><\/tr>
      5<\/td>VIN<\/td>Power<\/td>Input voltage supply<\/td><\/tr>
      6<\/td>EN<\/td>Input<\/td>Enable \/ UVLO adjust<\/td><\/tr>
      7<\/td>SS\/CLK<\/td>I\/O<\/td>Soft-start cap \/ external clock sync<\/td><\/tr>
      8<\/td>COMP<\/td>Output<\/td>Error amplifier output (compensation)<\/td><\/tr>
      9<\/td>VSENSE<\/td>Input<\/td>Feedback voltage sense<\/td><\/tr>
      10<\/td>AGND<\/td>Ground<\/td>Analog ground<\/td><\/tr>
      11<\/td>PWRGD<\/td>Output<\/td>Power good (open-drain)<\/td><\/tr>
      12<\/td>RT<\/td>Input<\/td>Switching frequency set resistor<\/td><\/tr>
      13<\/td>BOOT<\/td>Power<\/td>Bootstrap capacitor connection<\/td><\/tr>
      14-16<\/td>GND\/PH<\/td>Mixed<\/td>Ground and phase connections<\/td><\/tr><\/table>","application_scenarios":"
      • Point-of-load regulation: 5V to 1.2V\/1.8V\/3.3V for DSP, FPGA, and ASIC cores<\/li>
      • Broadband and telecom: POL regulators in line cards and switches<\/li>
      • Server and storage: dense power supply rails with 2MHz switching<\/li>
      • Portable equipment: high-efficiency 3.3V\/1.8V rails from Li-Ion battery<\/li>
      • Industrial control: POL regulation with wide -40 to 150 C junction range<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>TPS54328RTER<\/td>WQFN-16<\/td>4.5-18V input, 3A<\/td><\/tr>
        TI<\/td>TPS54317RTER<\/td>WQFN-16<\/td>Lower Iq version<\/td><\/tr>
        Monolithic Power<\/td>MPM3690GQV-30<\/td>QFN-28<\/td>3A, integrated inductor<\/td><\/tr>
        Infineon<\/td>IR3843AMTRPBF<\/td>PQFN-18<\/td>3A, 4.5-14V input<\/td><\/tr>
        Richtek<\/td>RT8059GQW<\/td>WQFN-16<\/td>3A, 2.7-5.5V input<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3721","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=3721"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3721\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=3721"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=3721"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=3721"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=3721"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}