{"id":2732,"date":"2026-05-25T02:05:47","date_gmt":"2026-05-25T02:05:47","guid":{"rendered":"https:\/\/materialparts.com\/tps543820rpyr\/"},"modified":"2026-05-25T02:05:47","modified_gmt":"2026-05-25T02:05:47","slug":"tps543820rpyr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tps543820rpyr\/","title":{"rendered":"TPS543820RPYR"},"content":{"rendered":"

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

The TPS543820RPYR from Texas Instruments is an 8A synchronous SWIFT step-down converter in a 14-pin VQFN-HR (2.5x3mm) package. Operating from 4V to 18V input with internally compensated Advanced Current Mode control, it delivers adjustable output from 0.5V to 7V with five selectable switching frequencies up to 2.2MHz.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n
\u8f93\u5165\u7535\u538b<\/td>\n4V ~ 18V<\/td>\n<\/tr>\n
\u8f93\u51fa\u7535\u6d41<\/td>\n8A continuous<\/td>\n<\/tr>\n
Output Voltage<\/td>\n0.5V ~ 7V adjustable<\/td>\n<\/tr>\n
\u5f00\u5173\u9891\u7387<\/td>\n500kHz \/ 750kHz \/ 1MHz \/ 1.5MHz \/ 2.2MHz<\/td>\n<\/tr>\n
Integrated MOSFETs<\/td>\n25mOhm HS \/ 6.5mOhm LS<\/td>\n<\/tr>\n
Vref Accuracy<\/td>\n0.5V +\/-0.5% over temperature<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n14-VQFN-HR (2.5 x 3.0mm)<\/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
  • Internally compensated Advanced Current Mode (ACM) control<\/li>\n
  • Integrated 25mOhm and 6.5mOhm MOSFETs<\/li>\n
  • Five selectable switching frequencies<\/li>\n
  • Selectable soft-start times: 0.5\/1\/2\/4ms<\/li>\n
  • Selectable current limit for 8A and 6A operation<\/li>\n
  • Pin-to-pin compatible with TPS543620 and TPS543320<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Wireless infrastructure and wired communications<\/li>\n
    • Optical and fiber networking equipment<\/li>\n
    • Test and measurement instruments<\/li>\n
    • Medical and healthcare equipment<\/li>\n
    • Industrial power supplies<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS543820RPYR from Texas Instruments is an 8A synchronous SWIFT step-down converter in a 14-pin VQFN-HR (2.5x3mm) package. Operating from 4V to 18V input with internally compensated Advanced Current Mode control, it delivers adjustable output from 0.5V to 7V with five selectable switching frequencies up to 2.2MHz. Key Specifications Input Voltage 4V ~ […]<\/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-2732","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"8A sync SWIFT buck, 4-18V in, 0.5-7V out, ACM control, 14-VQFN-HR 2.5x3mm","date_code":"","package_case":"14-VQFN-HR (RPY) (2.5 x 3.0 x 0.9 mm)","in_stock":3951,"datasheet":"https:\/\/www.ti.com\/product\/TPS543820","price":"$3.85 @ 1ku","product_introduction":"The TPS543820RPYR from Texas Instruments is an 8A synchronous SWIFT step-down converter with internally compensated Advanced Current Mode (ACM) control in a compact 14-pin 2.5x3mm VQFN-HR HotRod package. Operating from 4V to 18V input, it delivers adjustable output from 0.5V to 7V with +\/-0.5% reference accuracy. The integrated 25mOhm high-side and 6.5mOhm low-side MOSFETs minimize conduction losses. Five selectable switching frequencies (500kHz to 2.2MHz) allow optimization for efficiency or solution size. Pin-compatible with TPS543620 and TPS543320 for easy scalability.","working_principle":"The TPS543820 uses internally compensated Advanced Current Mode (ACM) control, which emulates peak current mode without requiring external compensation. An error amplifier compares the divided output voltage with the 0.5V reference. The ACM block generates a ramp signal that adds to the inductor current emulated signal. The resulting PWM duty cycle drives the integrated MOSFETs. Three selectable ramp options optimize the control loop for different L-C output filter combinations. In light-load conditions, the device enters pulse-skipping mode for improved efficiency. Selectable current limit supports both 8A and 6A operation.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>VIN<\/td>Power<\/td>Input voltage (4-18V)<\/td><\/tr>
      2<\/td>VIN<\/td>Power<\/td>Input voltage<\/td><\/tr>
      3<\/td>SW<\/td>Power<\/td>Switch node (inductor)<\/td><\/tr>
      4<\/td>SW<\/td>Power<\/td>Switch node<\/td><\/tr>
      5<\/td>BOOT<\/td>Analog<\/td>Bootstrap capacitor<\/td><\/tr>
      6<\/td>VOUT<\/td>Analog<\/td>Output voltage sense<\/td><\/tr>
      7<\/td>AGND<\/td>Power<\/td>Analog ground<\/td><\/tr>
      8<\/td>FB<\/td>Input<\/td>Feedback voltage<\/td><\/tr>
      9<\/td>SYNC\/FSEL<\/td>Input<\/td>Frequency select \/ external sync<\/td><\/tr>
      10<\/td>PGOOD<\/td>Output<\/td>Power good indicator<\/td><\/tr>
      11<\/td>EN<\/td>Input<\/td>Enable \/ UVLO adjust<\/td><\/tr>
      12<\/td>MODE<\/td>Input<\/td>Mode select (SS time \/ Ilim)<\/td><\/tr>
      13<\/td>BP5<\/td>Power<\/td>Internal 5V rail bypass<\/td><\/tr>
      14<\/td>PGND<\/td>Power<\/td>Power ground<\/td><\/tr><\/table>","application_scenarios":"
      • 12V to 1V\/1.2V FPGA core voltage rail at 8A<\/li>
      • Wireless base station POL power supply<\/li>
      • Optical networking equipment DC-DC conversion<\/li>
      • Medical imaging system power modules<\/li>
      • Industrial test equipment high-current rails<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>TPS543620RPYR<\/td>14-VQFN-HR<\/td>6A version, pin-compatible<\/td><\/tr>
        TI<\/td>TPS543320RPYR<\/td>14-VQFN-HR<\/td>3A version, pin-compatible<\/td><\/tr>
        Monolithic Power<\/td>MP8759GD-Z<\/td>QFN-14<\/td>8A, 4.5-17V sync buck<\/td><\/tr>
        Infineon<\/td>IR3899MTRPBF<\/td>PQFN-4x5<\/td>8A, 4.5-14V sync buck<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2732","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=2732"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2732\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=2732"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=2732"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=2732"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=2732"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}