Oring Fet

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Load switches are a simple, cost-effective way to turn on and off your power rails. Our broad portfolio includes extensive current, package, and timing options. Plus, our easy-to-use parametric search tool will quickly help you find the solution to reduce your shutdown current or reduce the BOM count in your design.

Flexible timing

Under fault conditions, the ORing MOSFET's gate is pulled down with a 1A current, providing an ultra-fast 200ns turn-off. The reverse voltage turn-off threshold is externally adjustable to avoid unintentional turn-off of the ORing MOSFET due to glitches at IN or BUS caused by hot plugging the power supply. Wireless Power ICs to Meet Your Needs. Renesas is a leader in wireless power ICs for wireless power transfer systems. Renesas' broad portfolio of wireless power ICs consists of both transmitters and receivers that offer distinct advantages in physical size, power efficiency, and flexibility.

Options include a fixed or adjustable linear rise time. This can be used to manage inrush current or power sequence loads

Lower power consumption

For battery powered applications, we offer load switches with as low as 10nA of shutdown current.

Broad current range

Select a switch to support your low, mid or high current rails

Extensive package options

Find the package option that works best in your manufacturing environment.

Featured load switches

TPS22950

High Side Oring Fet Controller

5.5-V, 2-A, 40-mΩ load switch with an adjustable current limit

TPS22918

TPS22918 is a 5.5V, 2A, 52m Ω load switch with adjustable rise time and output discharge, allowing design flexibility. Interface directly with low-voltage control signals with a small sized switch.

TPS22965-Q1

TPS22965-Q1 is a 5.5V, 4A, 16mΩ automotive high-side load switch with adjustable rise time & quick output discharge. This is in a small package solving your power dissipation concern.

What are load switches?

Integrated load switches from the TPS229xx family are integrated electronic relays used to turn on and off power rails. Most basic load switches consist of four pins: input voltage, output voltage, enable, and ground.

Shown below is a block diagram of a basic load switch. For a higher level of input or output power protection, check out our eFuse devices, which include features such as overvoltage shutdown, current limiting, and short circuit protection.

Hover over a block for additional information

The pass FET is the main component of the load switch, which determines the maximum input voltage and maximum load current the load switch can handle. The on-resistance (RON) of the load switch is a characteristic of the pass FET.
The gate driver charges and discharges the gate of the FET in a controlled manner, thereby controlling the rise time (tR) of the device.
The control logic is driven by an external logic signal. It controls the turn-on and turn-off of the pass FET and other blocks, such as quick output discharge (QOD), the charge pump, and blocks with protection features.
The charge pump is used in load switches with an N-channel FET, since a positive differential voltage between the gate and the source is needed to turn on the FET.
Quick Output Discharge (QOD) is an on-chip resistor from VOUT to GND that is turned on when the device is disabled via the ON pin. This will discharge the output node, preventing the output from floating.
Additional features are included in different load switches. These include, but are not limited to, thermal shutdown, current limiting, and reverse current protection.
Additional features are included in different load switches. These include, but are not limited to, thermal shutdown, current limiting, and reverse current protection.
Additional features are included in different load switches. These include, but are not limited to, thermal shutdown, current limiting, and reverse current protection.

O'ring Fittings

Featured literature

Basics of load switches

Learn fundamental basics of what load switches are, when they should be used, and how they can be implemented in a system.

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O-ring Fet Controller

Integrated load switches versus discrete MOSFETs

Learn about the many drawbacks and limitations of a discrete switching solution and how they can be overcome with an integrated load switch.

With an integrated load switch you can reduce solution size by 90% and greatly simplify the design process. These short videos explain what challenges you can overcome with an integrated solution.

Personalize your training experience by accessing advice and support from the integrated load switch experts. Explore our on- demand training videos, application notes, reference designs and more.

If you’re looking to reduce solution size and distribute your power, improve robustness with protection features, or diagnose against current conditions, then check out the rest of our portfolio.