The ADP120/ADP121 are products that are optimized for direct connection to a battery. The devices offer a PSRR of 70dB @ 10kHz and a noise rating of 40uVRMS at 1.2V out. A key figure of merit for a performance LDO is the amount of supply or quiescent current it consumes under no-load conditions. The ADP120/121 consumes only 11uA. Additionally, the device is available in a small package size of 0.86 x 0.86mm.