{"id":10667,"date":"2026-07-20T09:42:46","date_gmt":"2026-07-20T09:42:46","guid":{"rendered":"https:\/\/ic-vendor.com\/tps2105dbvr\/"},"modified":"2026-07-20T09:42:46","modified_gmt":"2026-07-20T09:42:46","slug":"tps2105dbvr","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/es\/tps2105dbvr\/","title":{"rendered":"TPS2105DBVR"},"content":{"rendered":"

Productos<\/h2>\n

The TPS2105DBVR from Texas Instruments is a dual-input, single-output power multiplexer (Power MUX) in a SOT-23-5 package. It combines a 250 mOhm, 500 mA N-channel MOSFET for the main supply and a 1.3 Ohm, 100 mA P-channel MOSFET for the auxiliary supply, providing uninterrupted output voltage during supply transitions with no parasitic diodes to prevent backflow.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n
IN1 (N-ch) Rds(on)<\/td>\n250 mOhm, 500 mA<\/td>\n<\/tr>\n
IN2 (P-ch) Rds(on)<\/td>\n1.3 Ohm, 100 mA<\/td>\n<\/tr>\n
IN1 Supply Current<\/td>\n18 uA (typical)<\/td>\n<\/tr>\n
IN2 Supply Current<\/td>\n0.75 uA (VAUX mode)<\/td>\n<\/tr>\n
Rango de suministro<\/td>\n2.7V – 5.5V<\/td>\n<\/tr>\n
Enable<\/td>\nActive high (CMOS\/TTL compatible)<\/td>\n<\/tr>\n
Backflow Prevention<\/td>\nNo parasitic diodes<\/td>\n<\/tr>\n
Paquete<\/td>\nSOT-23-5 (DBV)<\/td>\n<\/tr>\n
Temperature<\/td>\n-40 a +85 grados C<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • No parasitic diodes prevent reverse current flow when either switch is off<\/li>\n
  • Low 250 mOhm N-channel for main supply with high current capability<\/li>\n
  • Ultra-low 0.75 uA quiescent current in auxiliary (VAUX) mode<\/li>\n
  • Controlled rise, fall, and transition times for glitch-free switching<\/li>\n
  • 2 kV HBM ESD protection<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Notebook and desktop PC power multiplexing<\/li>\n
    • Cell phone and PDA main\/backup battery switching<\/li>\n
    • Battery management systems with AC\/battery selection<\/li>\n
    • USB peripheral power source selection<\/li>\n
    • Portable device power path management<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS2105DBVR from Texas Instruments is a dual-input, single-output power multiplexer (Power MUX) in a SOT-23-5 package. It combines a 250 mOhm, 500 mA N-channel MOSFET for the main supply and a 1.3 Ohm, 100 mA P-channel MOSFET for the auxiliary supply, providing uninterrupted output voltage during supply transitions with no parasitic diodes […]<\/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":[2008],"chip_brand":[138],"class_list":["post-10667","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-power-management-ics-pmic","tag-tps2105dbvr","chip_brand-ti"],"acf":{"brief_explanation":"Dual-input power MUX, 250mOhm\/500mA N-ch + 1.3Ohm\/100mA P-ch, 2.7-5.5V, SOT-23-5","date_code":"","package_case":"SOT-23-5 (DBV) 2.9x1.6 mm","in_stock":11425,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps2105.pdf","price":"$0.944 @ 1ku","product_introduction":"The TPS2105 is a dual-input, single-output power multiplexer from Texas Instruments designed to provide uninterrupted output voltage when transitioning between a main power supply and an auxiliary supply. It integrates a 250 mOhm N-channel MOSFET (IN1) for the main supply path capable of delivering 500 mA, and a 1.3 Ohm P-channel MOSFET (IN2) for auxiliary\/standby operation at up to 100 mA with only 0.75 uA quiescent current. Unlike discrete MOSFETs, the TPS2105 has no parasitic body diodes, preventing backflow current when either switch is off.","working_principle":"The TPS2105 uses advanced switch control logic to select between IN1 (main, N-channel) and IN2 (auxiliary, P-channel) power paths. The active-high enable input controls which supply connects to the output. When enabled for IN1, the N-channel MOSFET with 250 mOhm Rds(on) connects the main supply, drawing 18 uA quiescent current. When switched to IN2, the P-channel MOSFET connects the auxiliary supply at 1.3 Ohm Rds(on), reducing quiescent current to 0.75 uA for standby operation. The MOSFETs lack parasitic body diodes, preventing current backflow from output to input. Controlled rise and fall times minimize output voltage glitches during transitions.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>IN1<\/td>Power<\/td>Main supply input (N-ch, 500mA)<\/td><\/tr>
      2<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      3<\/td>EN<\/td>Input<\/td>Enable (active high, CMOS\/TTL)<\/td><\/tr>
      4<\/td>IN2<\/td>Power<\/td>Auxiliary supply input (P-ch, 100mA)<\/td><\/tr>
      5<\/td>OUT<\/td>Output<\/td>Power output<\/td><\/tr><\/table>","application_scenarios":"
      • Laptop power: seamless AC adapter to battery transition during unplug events<\/li>
      • USB peripherals: select between bus power and external supply<\/li>
      • Battery backup systems: switch between main and backup battery<\/li>
      • Mobile devices: VAUX mode at 0.75 uA extends standby battery life<\/li>
      • Industrial systems: redundant power supply selection<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>TPS2104DBVR<\/td>SOT-23-5<\/td>Active-low enable variant<\/td><\/tr>
        TI<\/td>TPS2115APW<\/td>TSSOP-8<\/td>Auto-switching power MUX with priority<\/td><\/tr>
        TI<\/td>TPS2120RUTR<\/td>VQFN-12<\/td>Higher current, automatic switchover<\/td><\/tr>
        ADI<\/td>LTC4412ES6<\/td>SOT-23-6<\/td>Similar power path controller<\/td><\/tr>
        onsemi<\/td>NCP360SNT1G<\/td>TSOP-6<\/td>Over-voltage protection + power switch<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/10667","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/comments?post=10667"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/10667\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/media?parent=10667"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/categories?post=10667"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/tags?post=10667"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/chip_brand?post=10667"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}