Saturday, December 7, 2013

Toshiba Launches Industry's Lowest ON Resistance 8.5mΩ Load Switch ICs with Reverse Current Blocking and Thermal Shutdown Circuits

ME NewsWire / Business Wire

TOKYO - Thursday, December 5th 2013

Toshiba Corporation (TOKYO:6502) today announced the launch of load switch ICs embedded with reverse current blocking circuits[1] and thermal shutdown circuits[2] that offer an ON resistance of 8.5mΩ[3], the industry’s lowest[4]. The ICs are suited for use as power management switches in smartphones, tablets, Ultrabooks™ and other mobile devices. Samples shipment starts from today with mass production scheduled for spring 2014.

The new products, TCK111G and TCK112G, achieve low ON resistance and low operating voltage in a 1.0mm x 1.5mm compact package by adopting Toshiba's unique CMOS process and analog circuit design techniques. As smartphones, tablets, Ultrabooks and other mobile devices require longer battery hours, lighter weight and smaller size, there is increasing demand for ultra-compact, low power consumption, low power dissipation switches.

Toshiba will increase its line-up of compact, high performance load switch IC to meet the requirements of the rapidly increasing mobile equipment market, with devices suitable for other markets also in the pipeline.


Power management switches for smartphones, tablets, Ultrabooks and other mobile devices.

Key Features

    Low ON resistance: 8.5mΩ
    Wide voltage operation: 1.1 to 5.5V
    Low standby current: 0.5uA[5]
    Reverse current blocking circuit
    Thermal shutdown circuit
    Auto discharge[6]
    Small package: WCSP6C (1.0mm x 1.5mm, t:0.5mm)

Outline of the New Products

Part Number


Inrush Current Reduction

Reverse Current Blocking

Thermal Shutdown

Auto Discharge

Control Pin Connection






Pull-down (Active-High)






Notes [1] A circuit that prevents flow of current towards the input pin when output pin voltage is larger than the input pin voltage. [2] A circuit that prevents excessive heating and damage to the device caused by unintentional current and large load current, and also from increase in ambient temperature. [3] Sample typical value under the conditions of Input voltage: 1.1V, Output current: -3.0A, room temperature. [4] Silicon semiconductor CMOS IC devices under 1.5mm2 as of December 5, 2013. Toshiba survey. [5] Sample typical value under the conditions of Input voltage: 5.5V, room temperature during standby. [6] A function that quickly removes electric charge gathered in the elements connected to the output.

* Ultrabook™ is a registered trademark of Intel Corporation in the United States and/or other countries.

Follow this link for more on Toshiba load switch ICs.

Customer Inquiries: Small Signal Device Sales and Marketing Department Tel: +81-3-3457-3416

Information in this document, including product prices and specifications, content of services and contact information, is current on the date of the announcement but is subject to change without prior notice.

About Toshiba

Toshiba is a world-leading diversified manufacturer, solutions provider and marketer of advanced electronic and electrical products and systems. Toshiba Group brings innovation and imagination to a wide range of businesses: digital products, including LCD TVs, notebook PCs, retail solutions and MFPs; electronic devices, including semiconductors, storage products and materials; industrial and social infrastructure systems, including power generation systems, smart community solutions, medical systems and escalators & elevators; and home appliances.

Toshiba was founded in 1875, and today operates a global network of more than 590 consolidated companies, with 206,000 employees worldwide and annual sales surpassing 5.8 trillion yen (US$61 billion). Visit Toshiba's web site at

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Media Inquiries:

Toshiba Corporation

Semiconductor & Storage Products Company

Koji Takahata, +81-3-3457-4963


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