- Packet Digital designs, develops and markets advanced power management integrated circuits for portable electronic devices. By taking a real-time systems approach to power management, Packet Digital developed PowerSage®, a product family of intelligent integrated circuits that monitors an entire system and distributes power only when needed by using dynamic frequency and voltage scaling. Through this innovative approach, PowerSage components have extended battery life up to 400% in wireless sensors and greater than 25% on complex handset designs.