Power switches

Solutions for your distribution, protection or diagnostics needs

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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 are made possible with our power switches.

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Related categories
USB power switches & charging port controllers

See our fixed current-limited switches, precision adjustable-limit switches, USB charging port controllers, switch with boost converters and switches with LDO regulators.

Solid-state relays

Isolated switch driver with integrated 15-V gate supply

Approx. price (USD) 1ku | 2.1

High-side switches

12-V to 36-V 65-mΩ four-channel high-side switch with SPI interface and integrated ADC

Approx. price (USD) 1ku | 1.89

Power muxes

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

eFuses & hot swap controllers

3.5-V to 23-V 13-mΩ 8-A eFuse with true reverse current blocking protection

Approx. price (USD) 1ku | 0.706

Load switches

5.5-V 10-A 4-mΩ on-resistance load switch with power good

Approx. price (USD) 1ku | 0.25

High-side switch controllers

Automotive 3.5-V to 40-V high-side driver with protection and diagnostics

Approx. price (USD) 1ku | 1.26

Power trends

Power switches for power density

With the integration of active and passive components, power switches enable you to achieve higher power density for your power distribution. Our power switches reduce power dissipation and add a number of protection and diagnostic features to ensure your system is fully protected without compromising board space. Our devices also reduce your footprint or improve heat dissipation.

Featured products for Power density
TPS22992 ACTIVE 5.5-V, 6-A, 8.7-mΩ load switch with adjustable rise time and adjustable quick output discha
TPS2597 ACTIVE 2.7-V–23-V, 7-A, 9.8-mΩ eFuse with accurate current monitor and transient overcurrent blanking
TPS272C45 ACTIVE 36-V, 45-mΩ, 3-A, 2-ch, Industrial high-side switch with adjustable current limit

Power switches for low quiescent current (IQ)

Extend battery run-time without giving up system performance with our power switches. Our power switches can reduce leakage current when modules are powered off with their ultra-low shutdown current (ISD). Our devices also offer solutions with low IQ, which can help to extend battery life when the system is operating in a standby mode.

Featured products for low quiescent current (IQ)
LM74720-Q1 ACTIVE Automotive, low IQ ideal diode controller with active rectification and load dump protection
TPS2116 ACTIVE 1.6-V to 5.5-V, 40-mΩ, 2.5-A, low-IQ, priority power multiplexer
TPS22916 ACTIVE 5.5-V, 2-A, 60-mΩ, 10-nA leakage load switch with output discharge


Improve system safety with higher reliability isolation compared to electromechanical and traditional photorelay solutions. Using industry-leading capacitive and magnetic isolation technology, our solid-state relay (SSR) portfolio of isolated switches and drivers forms a complete isolated solid-state relay solution with no moving parts. Our SSRs completely integrate the power and signal transfer over an isolation barrier in a single chip reducing solution size and cost for automotive and industrial applications.

Technical resources

11 Ways to Protect Your Power Path
Discover the ways various power switches can be used to solve difficult power design challenges.
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Application note
Application note
Basics of Power Switches (Rev. A)
This application report highlights different topologies within the power switch portfolio and provides suggestions for choosing the correct solution for power-path needs.
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Load Switches vs Discrete MOSFETs
This introductory video compares our discrete load switches and integrated solutions.

Reference designs related to Power switches

Use our reference design selection tool to find designs that best match your application and parameters.