The LDK320ADU33R with LDO Voltage Regulators 200 mA low quiescent current and high PSRR voltage regulator by STMicroelectronics is a low power voltage regulator specifically designed for providing an accurate, stable and consistent power supply for light load applications. The part has a low quiescent current of 200mA, and offers a very high power supply rejection ration (PSRR) of up to 72.5 dB. The device is designed to be able to render a precise output that remains highly linear over a wide input range, even in the most demanding conditions. Additionally, the LDK320ADU33R has an excellent line and load transient response, in order to provide a very low output voltage ripple. In addition, the parts has provides a soft start option, which makes it ideal for applications that require instant start up of the system.