Power Management

Large-scale adoption of wearable devices will depend on availability of two important technologies: improved batteries and higher density transistor circuits. These two technologies have been made possible by semiconductor lithography.

There are several unique challenges when we attempt to use supercapacitors in a backup solution.

This micropower op amp achieves 0.06-μV/°C drift (max.) and 5-µV offset voltage at 2-µA (max.) supply current.

A charge pump DC/DC controller IC and four external MOSFETS eliminate magnetic components in a non-isolated intermediate bus converter (IBC). The combination provides 2:1 step-down ratio,1:2 step-up ratio, or 1: –1 ratio as an inverter.