National's FlexCap LDO's feature unique compensation thatallows the use of any type of output capacitor with no limitson minimum or maximum ESR. The LP38501/3 series of lowdropoutlinear regulators operates from a +2.7V to +5.5V inputsupply. These ultra low dropout linear regulators respond veryquickly to step changes in load, which makes them suitablefor low voltage microprocessor applications. Developed on aCMOS process, (utilizing a PMOS pass transistor), theLP38501/3 has low quiescent current that changes little withload current.