Product details


IN1, IN2 input voltage (Min) (V) 2.8 IN1, IN2 input voltage (Max) (V) 5.5 IN1 rDS(on) (Typ) (mOhm) 120 IN2 rDS(on) (Typ) (mOhms) 120 IN1 output current (Max) (A) 0.75 IN2 output current (Max) (A) 0.75 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 mΩ Typ (TPS2113A)
    • 120 mΩ Typ (TPS2112A)
  • Reverse and Cross-Conduction Blocking
  • Wide Operating Voltage: 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
  • Auto-Switching Operating Mode
  • Thermal Shutdown
  • Available in TSSOP-8 and 3-mm × 3-mm SON-8 Packages
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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 2 A, depending on package. 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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Similar but not functionally equivalent to the compared device:
TPS2120 ACTIVE 2.8-V to 22-V, 62-mΩ, 3-A, power mux with seamless switchover This product has a wider voltage support (2.7V-22V) in a DSBGA package.
TPS2121 ACTIVE 2.7-V to 22-V, 56-mΩ, 4.5-A, power mux with seamless switchover This product has higher voltage rating (2.7V-22V) in a QFN package.

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 8
Type Title Date
* Datasheet AUTO SWITCHING POWER MUX datasheet (Rev. C) May 09, 2012
Application notes Basics of Power MUX Oct. 24, 2018
Technical articles How can a load switch extend your device’s battery life? Mar. 20, 2018
Technical articles How and why you should use load switches for power sequencing Feb. 06, 2018
Technical articles How to use load switches and eFuses in your set-top box design Nov. 23, 2017
Technical articles Don’t leave it floating! Power off your outputs with quick output discharge Dec. 09, 2016
User guides Using the TPS211xADRB-EVM Mar. 18, 2010
User guides TPS211xAEVM User's Guide May 12, 2004

Design & development

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TSSOP (PW) 8 View options

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