【TIP】4 different types of current limiting/current foldback circuits on Torex LDO
A TIP that explains 4 different types of current limiting/current foldback circuits has been released.
The current limiting/ current foldback circuit plays an important role by controlling any excessive output current. Despite numerous Torex LDO's integrate such a circuit, how many people realise that the shape of the foldback waveform differs between different Torex LDO datasheets.
Amongst the multitude of current limit methods, Torex currently implements 4 of them:
- Type A Current limiter, then current foldback;
- Type B Current foldback only;
- Type C Current limiter, then current limiter;
- Type D Current foldback, then current limiter.
The detailed operation for some of these types is given inside this TIP.
It is a good opportunity to learn something new about Torex LDO's.
You can learn more about power IC's by consulting our other application notes and TIP's by clicking on the following link: https://www.torexsemi.com/technical-support/tips/.