Load Switch ICs are designed for USB Type-C devices.

Press Release Summary:

With 3 A max output current and 28 V max input voltage, TCK30x series suits devices conforming to USB Type-C™ specifications (for USB PD). Products comes in 0.5 mm pitch, 1.5 x 1.5 mm WCSP, support auto-power source select mode without need for external control, and offer daisy chain connection. Other features include on-resistance of 73 mΩ @V(IN)=4.5 V as well as built-in over voltage lock out (OVLO), reverse current blocking, thermal shutdown, under voltage lockout (ULVO) protections.

Original Press Release:

Toshiba Introduces New Series of Power Mux, High Voltage Load Switch ICs

Suited to Devices Conforming to USB Type-CSpecifications (for USB PD)

IRVINE, Calif. – Toshiba America Electronic Components, Inc. (TAEC)*, a committed leader that collaborates with technology companies to create breakthrough designs, today announced the launch of a new series of 28 V load switch IC products. Appropriate for devices conforming to USB Type-C™([1) specifications (for USB PD([2)), the TCK30x series incorporates protection features that include over voltage lock out (OVLO([3)) and reverse current blocking functions. The new ICs support an auto-power source select mode, without the need for external control, and offer a daisy chain connection (Fixed Input Priority). These features enable the TCK30x series to be utilized as switching solutions for large capacity power supplies.

"The USB Type-C standard is rapidly gaining support, as it enables a robust, small form factor,  single cable solution that works for all devices," noted Talayeh Saderi, business development manager for TAEC. "Our new TCK30x series supports this new standard, and has been designed with safety in mind - it automatically isolates a system from a faulty source or load."

Applications include devices conforming to USB Type-C specification (USB PD); devices requiring 5 to 12 V power sources such as quick charging and wireless power supplies; mobile devices such as smartphones, tablet PCs, wearables, devices utilizing USB, and other battery-driven devices.

Product Lineup

Part number

Over Voltage Lock out

Control pin

Control pin internal


VOVL typ. (V)



VCT resistance



Acitve low

Active high

Pull up



Acitve low

Active high

Pull up



Acitve low

Active high

Pull up



Active high

Acitve low

Pull down



Acitve low

Acitve low

Pull down

Key Features

--  Low On-resistance: 73 mΩ @V(IN)=4.5 V

--  Maximum output current: 3 A

--  Maximum input voltage: 28 V

--  Various built-in protections: Over voltage lock out (OVLO) function, Reverse current blocking function, Thermal Shutdown function, Under voltage lockout (ULVO([4)) function

--  Package: WCSP9By adopting the 0.5mm pitch WCSP type package, a small size of 1.5×1.5mm has been achieved (P(D)=1.65 W)

Pricing and Availability

Toshiba's new load switch ICs are available now at the budgetary price of approximately $0.033 for low volumes. Please contact your local Toshiba Sales Office for samples.


[1: USB Type-C is a trademark of USB Implementers Forum, Inc. (USB-IF)

[2: USB Power Delivery

"USB PD" are the standards defined by USB-IF

[3: OVLO (Over Voltage Lock Out): A function to cut off the output (V(OUT)) when the input voltage exceeds a predefined value.

[4: UVLO (Under Voltage Lock Out): An output (V(OUT)) is cut off when input voltage is less than the input voltage defined beforehand. And the function to prevent malfunction of a latter-part system.

*About Toshiba Corp. and TAEC

About TAEC

Through proven commitment, lasting relationships and advanced, reliable electronic components, Toshiba enables its customers to create market-leading designs. Toshiba is the heartbeat within product breakthroughs from OEMs, ODMs, CMs, VARs, distributors and fabless chip companies worldwide. A committed electronic components leader, Toshiba designs and manufactures high-quality flash memory-based storage solutions, solid state drives (SSDs), hard disk drives (HDDs), solid state hybrid drives (SSHDs), discrete devices, custom SoCs/ASICs, imaging products, microcontrollers, wireless components, mobile peripheral devices, advanced materials and medical tubes that make possible today's leading smartphones, tablets, cameras, medical devices, automotive electronics, industrial applications, enterprise solutions and more.

Toshiba America Electronic Components, Inc. is an independent operating company owned by Toshiba America, Inc., a subsidiary of Toshiba Corporation, Japan's largest semiconductor manufacturer and the world's sixth largest semiconductor manufacturer (Gartner, 2014 Worldwide Semiconductor Revenue Estimates, December 2014). Founded in Tokyo in 1875, Toshiba is at the heart of a global network of over 590 consolidated companies employing over 200,000 people worldwide. Visit Toshiba's web site at www.toshiba.co.jp/index.htm.

© 2014 Toshiba America Electronic Components, Inc. All rights reserved.

Information in this press release, including product pricing and specifications, content of services and contact information,  is current and believed to be accurate on the date of the announcement, but is subject to change without prior notice.  Technical and application information contained here is subject to the most recent applicable Toshiba product specifications.


Dena Jacobson

Lages & Associates

Tel.: (949) 453-8080



Rebecca Bueno

Toshiba America Electronic Components, Inc.

Tel.: (949) 462-7885


Web Site: http://www.toshiba.com/taec

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