The following image shows a MOSFET based high-side switch:
The following image shows an IC based high-side switch.
Some load-switches have reverse-polarity protection. More information of how they exactly implement reverse-protection with only the one MOSFET can be found in the The Substrate (Body) Connection section of the MOSFET page.
Posted: November 8th, 2013 at 2:04 pm
Last Updated on: May 13th, 2015 at 5:43 pm