Toshiba Electronic Devices & Storage Corp. has unveiled the TCK12xBG Series of load switch ICs that offer a significant decrease in quiescent current compared with a predecessor device, the TCK107AG. With an output current rating of 1 A, the TCK12xBG devices are housed in a small WCSP4G package, targeting wearables, smartphones, and IoT devices that demand lower power consumption and longer charge life.
The TCK12xBG Series uses a new driver circuit, enabling a typical ON-state quiescent current of 0.08 nA, representing about a 99.9% reduction from Toshiba’s TCK107AG product. This results in “a huge advance in efficiency that will allow wearables and IoT devices powered by small batteries to operate for significantly longer,” said Toshiba.
In addition, the WCSP4G, measuring 0.645 × 0.645 mm, is a new package developed for the load switches and are about 34% smaller than the TCK107AG. The back coating of the new package is said to reduce damage that can happen to tiny chips in the mounting process.
The product family includes three chips, offering product designers more options to select the best load switch for their design requirements. These include the TCK127BG with automatic discharge that turns on at active high, the TCK126BG without automatic discharge that turns on at active high, and the TCK128BG with automatic discharge that turns on at active low. Click here for more information about Toshiba’s load switch ICs.
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