The LT1964ES5-5#TRMPBF is a Low DropOut (LDO) linear voltage regulator manufactured by Analog Devices. It is a Negative LDO, in a Thin Small Outline Transistor package, with an output current capability of 200mA. This part has low dropout voltage and ultra-low quiescent current, which makes it well suited for battery powered applications. The part also features shutdown logic, short-circuit and thermal protection, and maintains high accuracy, even under large variations in load current and temperature.