Product details


Number of input channels 2 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, 2.0 IN2 output current (Max) (A) 1.25, 2.0 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 VSON (DRB) 8 9 mm² 3 x 3 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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Technical documentation

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Type Title Date
* Data sheet AUTO SWITCHING POWER MUX datasheet (Rev. C) May 09, 2012
Application note Basics of Power MUX (Rev. A) Oct. 20, 2020
E-book 11 Ways to Protect Your Power Path white paper Jul. 03, 2019
Application note Basics of Power Switches (Rev. A) Apr. 26, 2019
Technical article How energy harvesting can extend the life of your fault indicator on the grid Oct. 18, 2017
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 TPS211xAEVM 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. TPS211xA EVM-061 is used for TPS211xAPW (...)

Design tools & simulation

PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

Energy Harvesting and Fault Indicator Subsystem for Overhead Fault Indicators Reference Design
TIDA-00998 — This reference design shows multiple architectures for extending primary battery life using a secondary battery or supercapacitor with energy harvested from a current transformer (CT) or solar cells. Optimal power management is done using efficient LED drivers to drive series or parallel (...)
document-generic Schematic
Single Cell Battery Power Solution Reference Design
PMP5722 This reference design shows the functionality and performance of a complete single-cell battery power solution using a coin-cell Li-Ion battery. It can be powered either by an external adapter or by an USB port. When the board is connected to a computer, the load current, state-of-charge, and much (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
SON (DRB) 8 View options
TSSOP (PW) 8 View options

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