Power muxes
Seamlessly switch from your current solution to an integrated power mux
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Maximum input voltage
Maximum output current
Quiescent current (IQ)
New products
1.6-V to 5.5-V, 20-mΩ, 4-A low IQ power multiplexer with manual and priority switchover
Approx. price (USD) 1ku | 0.404
Featured benefits of integrated power muxes
Switchover performance
Minimize voltage droop with fast switchover performance to keep the system on during power transitions. Automatic and user-controlled options are available.
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.
Total solution size
Increase power density and get more layout flexibility with a lower BOM count and smaller solution size.
Technical resources
Basics of Power MUX (Rev. A)
What is power muxing?
Achieve Power Efficiency in Building Automation Applications with the TPS2116
Discover featured applications
Increase battery life and provide automatic switchover between multiple sources in smart home applications
The adoption of automated climate control, security, and lighting systems continues to grow sharply in homes and workspaces. Our power multiplexers provide a small-sized, low-power solution to automation designs that have multiple power sources.
Benefits:
- Low quiescent current and small packages help reduce design size and increase power density.
- Automatic switchover reduces system complexity.
Featured resources
Provide seamless switchover from the main supply to the backup supply during grid power outages
With growing energy demands, it becomes more important to design reliable metering devices. Our power multiplexers enable smart meters to seamlessly switch over from the main supply to the backup supply during a grid power outage, while sending energy readings and communicating with the grid to diagnose where interruptions have occurred.
Benefits:
- Low quiescent current increases the backup power supply's operating time.
- Low on-resistance metal-oxide semiconductor field-effect transistors enable lower voltage drops during high-current Global System for Mobile Communications transmissions.
Featured resources
Increase reliability in electronic devices with the ability to switch seamlessly between multiple power sources
Portable electronics designs require that form factor continues to shrink and power efficiency to grow. Our power multiplexers bring this versatility with protection and seamless switchover capabilities.
Benefits:
- Devices smaller than 5 mm2 and low quiescent currents.
- Transient protections such as short-circuit and reverse current protection, overvoltage protection, and inrush current control.
Featured resources
- TIDA-01638 – Seamless switchover for backup power reference design
- PMP40937 – 4s battery charger reference design
Shrink your power designs without sacrificing reliability
Modern computing applications need a reliable and uninterrupted power supply. Our devices contribute to design reliability with seamless switchovers in a power-dense package.
Benefits:
- Transient event protection includes current limiting and control, as well as short-circuit, reverse current and overvoltage protection.
- A small form factor enables power-dense solutions.
Featured resources
- TIDA-01638 – Seamless switchover for backup power reference design
Keep important data while switching between power sources
Automating more processes increases the need for uninterrupted power to control devices. Our power multiplexers allow programmable logic controllers to retain their clocks or RAM and for encoders in motors and servo drives to retain their positions.
Benefits:
- Low quiescent currents and seamless switchovers.
- Thermally optimized to reduce losses.
- Protection from reverse current and controlled output slew rates.
Featured resources
Manage your assets closely by bringing uninterrupted power to your data sources
With growth comes a need to manage resources and assets more efficiently, as well as a need for reliable data. Providing uninterrupted power with our power multiplexers gives asset trackers and data loggers increased reliability in fail-safe functions such as last-gasp transmissions.
Benefits:
- Protection for critical data transmission systems against transient events such as reverse polarity and reverse current.
- Wide operating ranges, low drain-to-source on-resistance and low quiescent current.
Featured resources
Design & development resources
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 (...)
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 (...)
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, (...)