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Power Supplies 101 Slide 6

The dropout voltage of a linear regulator is the minimum voltage needed above VOUT to maintain proper regulation. An LDO is a regulator which functions when VDROPOUT is very small. The stability region of a linear regulator is the area where the output will remain stable. It is given for different output capacitances and depends on the ESR of the output capacitor.

PTM Published on: 2011-09-27