Toshiba Electronics Europe has launched three load switches that offer a significant reduction in quiescent current.
The new devices are mainly intended for use in wearable and IoT applications for power control of peripheral devices such as sensors.
These switches are also useful for upgrading existing designs built around discrete semiconductors.
The new TCK12xBG series devices feature a new control circuit developed by Toshiba, which enables a typical quiescent current in the ON state (IQ) of only 0.08nA.
This represents a reduction of 99.9% compared to Toshiba's current TCK107AG product.
This contributes significantly to extending the life of wearable and IoT-type devices powered by small batteries.
The series includes three devices. The TCK127BG offers an automatic discharge that starts with the active state high, the TCK126BG switches on without automatic discharge and the TCK128BG switches on with the active state low.
The devices operate with a supply voltage (VIN) and control voltage (VCT) in the range of -0.3V to 6.0V.
The output current (IOUT) is 1.0 A nominal in continuous mode and 2.0 A for pulsed operation.
All of the new TCK12xBG devices are housed in a newly developed WCSP4G package that occupies an on-board area of just 0.645mm x 0.645mm with a height of 0.465mm, providing significant space savings in compact wearable and IoT device designs.
An innovative back coating reduces the possibility of damage to devices during the assembly process.
