Toshiba TCK12xBG Series load switch ICs

Toshiba Electronic Devices & Storage has released the TCK12xBG Series compact load switch ICs, claimed to deliver a decrease in quiescent current and an output current rating of 1A. Housed in a small WCSP4G package, the ICs are designed to support product developers in innovating the next generation of wearables and IoT devices that consume less power and offer a longer charge life.

The series uses a driver circuit that realises a typical ON-state quiescent current of 0.08 nA. This represents a 99.9% reduction from Toshiba’s previous product, the TCK107AG, which will allow wearables and IoT devices powered by small batteries to operate for longer.

The WCSP4G package is about 34% smaller than that of the TCK107AG, at only 0.645 x 0.645 mm, which allows mounting on small boards. Its back coating can reduce the damage that can happen to such a minute chip in the mounting process.

Toshiba has prepared a line-up of three ICs: 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. This offers product developers and designers the freedom to select the load switch IC that best suits their design requirement.