The wearable market of smart watches and activity monitors is a typical application for translation. These systems often use two power domains: a low voltage supply for the microcontroller, and a higher power supply for the various sensors.  To extend battery life, the sensors are only turned on for a brief period when needed, while the microcontroller is constantly powered in a low current mode. The AXP Translator provides an ideal interface between these two power domains, providing level shifting and isolation.