App note: The load switch – Selection and use of ecoSWITCH(TM) products


ecoSWITCH(TM) from ON Semiconductors offers space saving solution on power distribution system. Link here (PDF)

Load switches play an important part in the management of supply domains and the protection of the loads they supply. Loads switches are often used for power sequencing, standby load leakage reduction, and inrush current control. Integrated ecoSWITCH products deliver an area reducing solution, offering over current protection, load soft start, and extremely low on series resistances of sub − 20 milliohm. This article discusses the primary benefits of load switches, application considerations, and how ecoSWITCH differs from other types of integrated switch offerings. A generic cloud system application and USB power delivery example are presented to demonstrate how the addition of ecoSWITCH solves design challenges such as achieving low quiescent current, local load protection, and startup sequencing.

App note: Load switches: What are they, why do you need them and how do you choose the right one?


Application report from Texas Instruments on load switches to simplify power supply design. Link here (PDF)

Integrated load switches are electronic relays that can be used to turn on and turn off power supply rails in systems. Load switches offer many other benefits to the system and can include protection features that are often difficult to implement with discrete components. There are many different applications where load switches can be used including, but not limited to:

-Power Distribution
-Power Sequencing and Power State Transition
-Reduced Leakage Current in Standby Mode
-Inrush Current Control
-Controlled Power down

This application note will provide the fundamental basics of what load switches are, when they should be used, and how they can be implemented in a system.