The SGM2038-1.25XUDY4G/TR with UTDFN-1.2x1.2-4L is an LDO Linear Voltage Regulator manufactured by SGMICRO. The device is a very low dropout, 1.25V fixed output, ultra low noise, 1A regulator with a built-in high-efficiency Shutdown mode. It has a low quiescent current of 0.9µA in various temperature ranges, and low output noise of 30µVrms in extended temperature range. The device has enhanced logic controlled portability and flexible output voltage ranges from 1.2V to 5.5V, with a typical output voltage accuracy of ±1%. The device is RoHS Compliant and its package type is UTDFN-1.2×1.2-4L, which is an ultra thin plastic DFN with an exposed pad. In addition, it also features a transient dropout protection, current limiting protection, and over temperature protection.