by Daniel Webster, dWeb.News Publisher
KAWASAKI, Japan–(BUSINESS WIRE)–Toshiba Electronic Devices & Storage Corporation (“Toshiba”) has brought to market the “TCK12xBG Series” of load switch ICs that deliver a remarkable decrease in quiescent current and an output current rating of 1A. The new ICs are housed in a small WCSP4G box and will be used by product developers to invent new wearables and IoT devices. Volume orders are available now.
TCK12xBG Series uses a new driver circuit, which realizes a typical ON-state quiescent current of 0.08nA. This represents in the region of 99.9% reduction from Toshiba’s current product, “TCK107AG,” a huge advance in efficiency that will allow wearables and IoT devices powered by small batteries to operate for significantly longer.
WCSP4G, a new package developed for the products, is about 34% smaller than that of TCK107AG, only 0.645×0. 645mm, which allows mounting on small boards. The back coating reduces damage to tiny chips during mounting.
Toshiba has prepared a line-up of three ICs: TCK127BG with automatic discharge that turns on at active high; TCK126BG without automatic discharge that turns on at active high; and TCK128BG with automatic discharge that turns on at active low. Designers and product developers have the option to choose the load switch IC that suits their needs.
Toshiba will continue enhancing low quiescent current technology products to help with equipment downsizing, lower power consumption and a sustainable future.
Wearables, IoT devices, smartphones (ON and OFF switch of power supply for sensors, etc.)
Replacing load switch circuits made by discrete semiconductors like MOSFETs, transistors and so on.
Ultra-low quiescent current (ON state): IQ=0. 08nA (typ.)
Low standby current (OFF state): IQ(OFF)+ISD(OFF)=13nA (typ.)
Compact WCSP4G package: 0.645×0. 645mm (typ. ), t:0. 465mm (max.)
Backside coating that reduces damage in board-mounting process
 Among load switch ICs with a compact package size of 1mm2 or less and an output current rating of 1A. Toshiba survey, as of January 2022.
(Unless otherwise specified, @Ta=25degC)
Size typ. (mm)
t:0. 465 (max)
Input voltage VIN (V)
-0.3 to 6.0
Control voltage VCT (V)
-0.3 to 6.0
Output current IOUT (A)
Power dissipation PD (W)
-40 to 85degC)
Input voltage VIN (V)
1.0 to 5.5
Output current IOUT max (A)
IQ typ. (nA)
IQ(OFF) + ISD(OFF) typ. (nA)
RON typ. (mO)
@VIN=5.0V, IOUT= -0.5A
@VIN=3.3V, IOUT= -0.5A
@VIN=1.8V, IOUT= -0.5A
@VIN=1.2V, IOUT= -0.2A
@VIN=1.0V, IOUT= -0. 05A
VOUT rise time tr typ. (ms)
VOUT fall time tf typ. (ms)
Turn on delay tON typ. (ms)
Turn off delay tOFF typ. (ms)
ON/OFF control logic
Sample Check & Availability
Follow the link below for more on Toshiba’s Load Switch ICs.
Load Switch ICs
Small Signal Device Sales & Marketing Dept.
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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 Electronic Devices & Storage Corporation
Toshiba Electronic Devices & Storage Corporation, a leading supplier of advanced semiconductor and storage solutions, draws on over half a century of experience and innovation to offer customers and business partners outstanding discrete semiconductors, system LSIs and HDD products.
The company’s 22,000 employees around the world share a determination to maximize product value, and promote close collaboration with customers in the co-creation of value and new markets. With annual sales now surpassing 710-billion yen (US$6.5 billion), Toshiba Electronic Devices & Storage Corporation looks forward to building and to contributing to a better future for people everywhere.
Find out more at https://toshiba.semicon-storage.com/ap-en/top.html
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