Power muxes

Seamlessly switch from your current solution to an integrated power mux

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Power muxes select and transition between two input power paths to a single output with protection. A power mux chooses between barrel-jack, USB, wireless charging, backup power, battery and other inputs. In addition, these devices assist with applications that require a fast or seamless switchover response, which makes sure the system does not reset during power transitions.

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Featured benefits of integrated power muxes

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Switchover performance

Minimize voltage droop with fast switchover performance to keep the system on during power transitions. Automatic and user-controlled options are available.

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Protection

Get the most from our single-chip solution with integrated overvoltage, overcurrent and inrush current protection as well as soft-start and thermal shutdown features.

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Total solution size

Increase power density and get more layout flexibility with a lower BOM count and smaller solution size.

Technical resources

Application note
Application note
Basics of Power MUX (Rev. A)
Learn what a power mux is, what features are important and how to find the solution or topology to meet your unique requirements.
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Video
Video
What is power muxing?
This presentation covers what a power mux is, examples of when a power mux is needed, what to consider when choosing a power mux circuit, what solutions are available today, and some unique applications using external circuitry.
Application note
Application note
Achieve Power Efficiency in Building Automation Applications with the TPS2116
This technical document compares and contrasts the performance of TPS2116, an integrated power mux, versus that of a discrete based implementation.
document-pdfAcrobat PDF

Design & development resources

Evaluation board
TPS2116 low iq power mux with manual and automatic switchover evaluation module

The TPS2116 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS2116. The TPS2116 is a dual input, single output power multiplexer that can be configured for automatic or manual switchover between the availabale inputs. The EVM allows the user to configure the (...)

Evaluation board
TPS2121 Evaluation Module for Priority Power Multiplexer Applications

The TPS212x EVM is an evaluation module for TI's TPS212x family of two-input, one-output power multiplexers. This device automatically detects, selects, and seamlessly transitions between two power supplies, each operating from 2.7 V to 22 V. The TPS2121 device, the VSON hot-rod package, can (...)

Reference design
Seamless switchover for backup power reference design

The TIDA-01638 referencedesign showcases Power MUXing with redundant power. If one power source fails, the system needs to switchover to a backup power source and provide an uninterrupted source of power to downstream loads. Therefore, power redundancy ensures that if one power supply were to fail, (...)

Reference designs related to Power muxes

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