Precision Output Current Limiting Using Average Current Monitor Feature

July 06, 2011 // By Eric Lee, Robert Bell, National Semiconductor
In this paper, a unique average output current monitor feature of National Semiconductor's LM5117 synchronous buck controller will be introduced and a method to use this feature in order to implement precise current limiting will be shown. An example of a constant current regulator providing output overvoltage protection will also be presented.
National Semiconductor, Precision Output Current Limiting, Using Average Current Monitor Feature