Product details


IN1, IN2 input voltage (Min) (V) 2.8 IN1, IN2 input voltage (Max) (V) 5.5 IN1 rDS(on) (Typ) (mOhm) 84 IN2 rDS(on) (Typ) (mOhms) 84 IN1 output current (Max) (A) 1.25 IN2 output current (Max) (A) 1.25 Number of Inputs 2 Rating Catalog Operating temperature range (C) -40 to 85 open-in-new Find other Power muxes

Package | Pins | Size

TSSOP (PW) 8 19 mm² 3 x 6.4 open-in-new Find other Power muxes


  • Two-Input, One-Output Power Multiplexer with
    Low rDS(on) Switches:
    • 84 m Typ (TPS2111A)
    • 120 m Typ (TPS2110A)
  • Reverse and Cross-Conduction Blocking
  • Wide Operating Voltage Range: 2.8 V to 5.5 V
  • Low Standby Current: 0.5 µA Typ
  • Low Operating Current: 55 µA Typ
  • Adjustable Current Limit
  • Controlled Output Voltage Transition Time:
    Limits Inrush Current
    Minimizes Output Voltage Hold-Up Capacitance
  • CMOS- and TTL-Compatible Control Inputs
  • Manual and Auto-Switching Operating Modes
  • Thermal Shutdown
  • Available in a TSSOP-8 Package
    • PCs
    • PDAs
    • Digital Cameras
    • Modems
    • Cell Phones
    • Digital Radios
    • MP3 Players

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The TPS211xA family of power multiplexers enables seamless transition between two power supplies, such as a battery and a wall adapter, each operating at 2.8 V to 5.5 V and delivering up to 1 A. The TPS211xA family includes extensive protection circuitry, including user-programmable current limiting, thermal protection, inrush current control, seamless supply transition, cross-conduction blocking, and reverse-conduction blocking. These features greatly simplify designing power multiplexer applications.

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Technical documentation

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Type Title Date
* Data sheet TPS2110A, TPS2111A: Autoswitching Power Mux datasheet (Rev. A) Mar. 21, 2010
Application note Basics of Power MUX (Rev. A) Oct. 20, 2020
User guide Using the TPS211xADRB-EVM Mar. 18, 2010
User guide TPS211xAEVM User's Guide May 12, 2004

Design & development

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Hardware development

document-generic User guide

The TPS211xA EVM is an evaluation module for the Texas Instruments TPS211xA family of two-input, one-output power multiplexers. These multiplexers enable seamless transition between two power supplies, each operating at 2.8 V–5.5 V and delivering up to 1 A. EVM configurations are available for the (...)

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