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Power management

Power switches

Power on with solutions for your distribution, protection, or diagnostics needs

Power switches provide an electrical connection from a voltage source or ground to a load. Our diverse portfolio includes several topologies, from simple load switches to smart power switches. Sequencing, protection against common IC events, diagnostic telemetry, and more is made possible with our power switches. Start designing with our customized search

Load switches

Load switches are a simple, cost-effective way to turn on and off your power rails. Reduce your BOM count with an integrated load switch and get to market faster.

eFuses & hot swap controllers

These power path protection devices are used to control load current with integrated or external FETs. Get protected with our extensive feature options.

High-side switches

Drive and protect an inductive, resistive and capacitive load, while providing real-time diagnostics to your automotive and industrial systems.

Ideal diode & OR-ing controllers

Find the right solution to reduce power loss and thermal dissipation, while protecting your system from reverse polarity and reverse current conditions.

Power muxes

Power multiplexers allow you to switch between subsystems with two different voltage levels. Preserve operating conditions with seamless switchover options.

Low-side switches

Unlike other power switch topologies, our low side switches utilize an integrated flyback diode to connect the load to ground.

The six types of power switches 

Power switches are used in multiple locations in a design. They provide protection at the input, power distribution throughout the system, and protection at the output for off-board loads.  The common use cases for various power switches can be seen below. Start designing now. 

power-switches-types

Technical resources

Discover all of the ways that various power switches can be used to solve your most difficult power design challenges.

Personalize your training experience by accessing advice and support from the power switch experts. Explore our on- demand training videos, blogs, and app notes.

Receive fast and reliable technical support from our engineers throughout every step of your design.

Power switches for functional safety

  • Trying to meet the rigorous requirements of standards like ISO 26262 or IEC 61508? Our power switches not only comprise critical protection functions for safety-critical applications within ADAS, powertrain, factory automation, robotics and more, they also have functional safety documentation available. 
     
  • The device families below have functional-safety capable offerings, meaning you can easily access FIT rate calculations and failure mode distribution (FMD) and/or pin FMA documentation in the technical documents section of each product landing page.
     
  • Navigate to the devices you need in the table below or take advantage of the additional resources we’ve created so you can get your safety system tested and into the market quicker.
automotive-functional safety

Find functional safety devices

Functional safety-capable rating

High-side switches
yes
Ideal diodes & OR-ing controllers
yes
eFuses & hot swap controllers
yes
Load switches
yes

Functional safety design resources

TIDA-01599

Redundant dual-channel safe torque off (STO) reference design for AC inverters and servo drives reference design

TIDA-010049

TUV-assessed digital input reference design for IEC 61508 (SIL-2)

Functional safety systems and high-side switches

Many of our high-side switches are Functional safety-capable and this video demonstrates techniques to ensure that your FET is operating as expected.