As electronic systems continue to include more features and higher performance in smaller packages, system heating issues are increasingly becoming a crucial design consideration. System overheating can reduce performance, damage components, or even be a safety concern. Two parameters often monitored to track and mitigate these system heating issues are continuous temperature measurement and over-temperature alarm signaling.

The integrated LM57 analog temperature sensor and temperature switch incorporates all the features of
a traditional temperature sensor and comparator
circuit, plus adds features and has better performance
than discrete solutions.