Ultra-Low Quiescent Current Load Switch ICs for Wearables and IoT Devices

Toshiba Electronic Devices & Storage Corporation has introduced new “TCK12xBG Series” of load switch ICs that uses a new driver circuit, which realizes a typical ON-state quiescent current of 0.08nA. Housed in a small WCSP4G package, these new ICs are suitable for the new generation of wearables and IoT devices that consume less power and offer a longer charge life.

The company has prepared a line-up of three ICs which are now available in 0.35 mm pitch ultra-small package. TCK127BG IC with automatic discharge that turns on at active high, TCK126BG IC without automatic discharge that turns on at active high, and TCK128BG IC with automatic discharge that turns on at active low.

Key Features

• Ultra-low quiescent current (ON state): I_Q=0.08nA (typ.)
• Low standby current (OFF state): I_Q(OFF)+I_SD(OFF)=13nA (typ.)
• Compact WCSP4G package: 0.645×0.645mm (typ.), t:0.465mm (max.)
• Backside coating that reduces damage in board-mounting process