{"id":5480,"date":"2026-06-10T04:01:27","date_gmt":"2026-06-10T04:01:27","guid":{"rendered":"https:\/\/materialparts.com\/tps2552dbvr\/"},"modified":"2026-06-10T04:01:27","modified_gmt":"2026-06-10T04:01:27","slug":"tps2552dbvr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tps2552dbvr\/","title":{"rendered":"TPS2552DBVR"},"content":{"rendered":"

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

The TPS2552DBVR from Texas Instruments is a 1.5A current-limited power-distribution switch with auto-retry fault management in a SOT-23-6 package. With 50mOhm Rds(on), 2.5-6.5V operating range, and \u00b16% accurate current limit, it provides robust USB port protection with fault reporting.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
Current Limit<\/td>\n1.5A fixed<\/td>\n<\/tr>\n
Rds(on)<\/td>\n50mOhm typical<\/td>\n<\/tr>\n
\u8f93\u5165\u7535\u538b<\/td>\n2.5V to 6.5V<\/td>\n<\/tr>\n
Current Limit Accuracy<\/td>\n+\/-6%<\/td>\n<\/tr>\n
Fault Management<\/td>\nAuto-retry (TPS2552) or latch-off (TPS2553)<\/td>\n<\/tr>\n
Fault Flag<\/td>\nOpen-drain, active-low<\/td>\n<\/tr>\n
EN Input<\/td>\nActive-high enable<\/td>\n<\/tr>\n
UVLO<\/td>\n2.2V threshold<\/td>\n<\/tr>\n
Reverse Current Block<\/td>\nYes<\/td>\n<\/tr>\n
Operating Temp<\/td>\n-40 to +85 C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOT-23-6<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 1.5A fixed current limit with +\/-6% accuracy<\/li>\n
  • 50mOhm low Rds(on) MOSFET switch<\/li>\n
  • Auto-retry fault management (cycling 75ms on\/75ms off)<\/li>\n
  • Open-drain FAULT flag output<\/li>\n
  • Reverse-current blocking<\/li>\n
  • Undervoltage lockout (UVLO)<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • USB 2.0 port power switching<\/li>\n
    • Hot-plug power distribution<\/li>\n
    • Notebook USB port protection<\/li>\n
    • Self-powered hub current limiting<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS2552DBVR from Texas Instruments is a 1.5A current-limited power-distribution switch with auto-retry fault management in a SOT-23-6 package. With 50mOhm Rds(on), 2.5-6.5V operating range, and \u00b16% accurate current limit, it provides robust USB port protection with fault reporting. Key Specifications Current Limit 1.5A fixed Rds(on) 50mOhm typical Input Voltage 2.5V to 6.5V […]<\/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":[13,29],"tags":[],"chip_brand":[138],"class_list":["post-5480","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-power-management-ics-pmic","chip_brand-ti"],"acf":{"brief_explanation":"1.5A USB power switch, auto-retry, SOT-23-6","date_code":"","package_case":"SOT-23-6 (2.9 x 1.6 mm)","in_stock":3467,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps2552.pdf","price":"$0.65 @ 1ku","product_introduction":"The TPS2552DBVR from Texas Instruments is a 1.5A current-limited power-distribution switch with auto-retry fault management in a SOT-23-6 package. With 50mOhm Rds(on), 2.5-6.5V operating range, and \u00b16% accurate current limit, it provides robust USB port protection with fault reporting.","working_principle":"The TPS2552DBVR operates as described in the product overview. Key subsystems include the input stage, processing\/gain stage, output stage, and protection circuitry as detailed in the datasheet.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>
      1<\/td>OUT<\/td>Output<\/td>Switch output to load<\/td><\/tr>
      2<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      3<\/td>EN<\/td>Input<\/td>Enable (active high)<\/td><\/tr>
      4<\/td>FAULT<\/td>Output<\/td>Fault flag (open-drain, active low)<\/td><\/tr>
      5<\/td>IN<\/td>Input<\/td>Power input (2.5-6.5V)<\/td><\/tr>
      6<\/td>IN<\/td>Input<\/td>Power input<\/td><\/tr><\/table>","application_scenarios":"
      • USB 2.0 port power switching<\/li>
      • Hot-plug power distribution<\/li>
      • Notebook USB port protection<\/li>
      • Self-powered hub current limiting<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Package<\/th>Notes<\/th><\/tr>
        TPS2553DBVR<\/td>TI<\/td>SOT-23-6<\/td>Latch-off fault version<\/td><\/tr>
        TPS2062DR<\/td>TI<\/td>SOIC-8<\/td>2-ch 1A switch<\/td><\/tr>
        TPS22948DCKR<\/td>TI<\/td>SOT-23-6<\/td>Lower Ron, 2A<\/td><\/tr>
        AP2552W6-7<\/td>Diodes Inc<\/td>SOT-23-6<\/td>Pin-compatible<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5480","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=5480"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5480\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=5480"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=5480"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=5480"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=5480"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}