{"id":8527,"date":"2026-06-29T03:05:27","date_gmt":"2026-06-29T03:05:27","guid":{"rendered":"https:\/\/materialparts.com\/tps2065dr\/"},"modified":"2026-06-29T06:28:25","modified_gmt":"2026-06-29T06:28:25","slug":"tps2065dr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tps2065dr\/","title":{"rendered":"TPS2065DR"},"content":{"rendered":"

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

The TPS2065DR from Texas Instruments is a 1A current-limited power distribution switch in an SOIC-8 package. With a 70 mOhm N-channel MOSFET, high-level enable, and precise current limiting from 1.1A to 1.9A, it provides USB power port protection from 2.7V to 5.5V with integrated soft-start, undervoltage lockout, and UL-listed overtemperature and short-circuit protection.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Switch Type<\/td>\nHigh-side N-channel MOSFET<\/td>\n<\/tr>\n
RDS(ON)<\/td>\n70 mOhm typ<\/td>\n<\/tr>\n
Continuous Current<\/td>\n1A<\/td>\n<\/tr>\n
Current Limit<\/td>\n1.5A typ (1.1A min, 1.9A max)<\/td>\n<\/tr>\n
\u8f93\u5165\u7535\u538b\u8303\u56f4<\/td>\n2.7V to 5.5V<\/td>\n<\/tr>\n
Enable<\/td>\nActive high<\/td>\n<\/tr>\n
Output Rise Time<\/td>\n0.6 ms typ (soft-start)<\/td>\n<\/tr>\n
Standby Current<\/td>\n1 \u00b5A max<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOIC-8 (4.9 x 6.0 mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 70 mOhm high-side MOSFET with 1A continuous current<\/li>\n
  • Precise current limiting with 1.1A min threshold<\/li>\n
  • Integrated soft-start (0.6 ms) limits inrush current<\/li>\n
  • Undervoltage lockout (UVLO) protection<\/li>\n
  • Overtemperature and short-circuit protection<\/li>\n
  • Glitch-free fault reporting (OC output)<\/td>\n
  • UL listed (file E169910) and bidirectional switch<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • USB port power distribution<\/li>\n
    • Hot-plug power supply protection<\/li>\n
    • PCI card power switching<\/li>\n
    • Industrial I\/O module power control<\/li>\n
    • Battery-powered equipment power routing<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS2065DR from Texas Instruments is a 1A current-limited power distribution switch in an SOIC-8 package. With a 70 mOhm N-channel MOSFET, high-level enable, and precise current limiting from 1.1A to 1.9A, it provides USB power port protection from 2.7V to 5.5V with integrated soft-start, undervoltage lockout, and UL-listed overtemperature and short-circuit protection. […]<\/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":[13,29],"tags":[],"chip_brand":[138],"class_list":["post-8527","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-power-management-ics-pmic","chip_brand-ti"],"acf":{"brief_explanation":"1A power switch, 70mOhm, 2.7-5.5V, current limit, soft-start, SOIC-8, UL listed","date_code":"","package_case":"SOIC-8 (4.9 x 6.0 x 1.75 mm)","in_stock":8533,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps2062.pdf","price":"$0.44 @ 1ku","product_introduction":"The Texas Instruments TPS2065DR is a current-limited power distribution switch designed for USB and general-purpose power routing applications. The device integrates a 70 mOhm N-channel MOSFET with a precise current-limiting circuit that limits the output current to a programmed threshold (1.5A typical), protecting the upstream power supply from overcurrent and short-circuit faults. The 2.7V to 5.5V input range covers the standard USB 5V supply with margin for voltage drops. The integrated soft-start circuit controls the output voltage rise time to 0.6 ms, limiting inrush current when charging downstream capacitive loads. The active-high enable input allows system-level power sequencing, and the open-drain OC (overcurrent) fault output provides glitch-free fault reporting to the host controller. The device is UL listed (file E169910) for safety-critical applications and supports bidirectional current flow for battery charging applications.","working_principle":"The TPS2065DR integrates a high-side N-channel power MOSFET with a charge pump for gate drive, current sensing, and protection circuits. An internal charge pump generates a gate voltage approximately 6V above the input supply to fully enhance the N-channel MOSFET, achieving the low 70 mOhm RDS(ON). The current-limiting circuit senses the MOSFET current through an internal sense element and compares it to a reference. When the load current exceeds the current-limit threshold (1.1A minimum), the regulator loop limits the MOSFET gate voltage to maintain constant current, reducing the output voltage as necessary. The OC (overcurrent) open-drain output is asserted low when the device is in current limit or the output voltage drops below the input by more than the fault threshold. The soft-start circuit gradually increases the gate voltage during turn-on, limiting the output dv\/dt and the resulting inrush current. The undervoltage lockout (UVLO) circuit keeps the MOSFET off when the input voltage is below the UVLO threshold, preventing operation with insufficient gate drive. The overtemperature shutdown disables the MOSFET when the junction temperature exceeds the safe operating limit.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1<\/td>OUT<\/td>Power Output to Load<\/td><\/tr>
      2<\/td>OUT<\/td>Power Output to Load<\/td><\/tr>
      3<\/td>OC<\/td>Overcurrent Fault Output (Open-Drain, Active Low)<\/td><\/tr>
      4<\/td>GND<\/td>Ground<\/td><\/tr>
      5<\/td>EN<\/td>Enable Input (Active High)<\/td><\/tr>
      6<\/td>IN<\/td>Power Input (2.7-5.5V)<\/td><\/tr>
      7<\/td>IN<\/td>Power Input (2.7-5.5V)<\/td><\/tr>
      8<\/td>NC<\/td>No Connect<\/td><\/tr><\/table>","application_scenarios":"
      • USB Port Protection<\/b>: 5V USB power switch with 1A current limit and soft-start protecting the host USB controller from downstream short-circuit faults and inrush current<\/li>
      • Hot-Plug PCI Card<\/b>: Controlling power-up sequence for plug-in cards with EN input from system management and OC fault reporting to the host BIOS<\/li>
      • Battery Charging<\/b>: Bidirectional switch allowing battery charging current flow in either direction with current limiting protecting both supply and battery<\/li>
      • Industrial I\/O Module<\/b>: Enabling power to field replaceable sensor modules with inrush current limiting during hot-swap insertion<\/li>
      • Portable Equipment<\/b>: 1 \u00b5A standby current when disabled for power routing in battery-powered devices with multiple power sources<\/li><\/ul>","alternative_models":"
        Model<\/th>Brand<\/th>Ilim (A)<\/th>Vin (V)<\/th>Package<\/th><\/tr>
        TPS2064DR<\/td>TI<\/td>0.75<\/td>2.7-5.5<\/td>SOIC-8<\/td><\/tr>
        TPS2066DGN<\/td>TI<\/td>2A<\/td>2.7-5.5<\/td>HVSSOP-8<\/td><\/tr>
        TPS22916DBVR<\/td>TI<\/td>2A<\/td>1-5.5<\/td>SOT-23-5<\/td><\/tr>
        MAX14572ETT+<\/td>ADI<\/td>0.5-3<\/td>2.7-5.5<\/td>TDFN-6<\/td><\/tr>
        AP22802AW5-7<\/td>Diodes<\/td>1.5<\/td>1.4-5.5<\/td>SOT-25<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8527","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=8527"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8527\/revisions"}],"predecessor-version":[{"id":8528,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8527\/revisions\/8528"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=8527"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=8527"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=8527"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=8527"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}