The VRH2851NTX is a Dropout Regulator (LDO) manufactured by AnaSem. It is a low-noise, fast response, high accuracy, wide range output voltage device. The device's operating range is from 2.2V to 5.5V, and its output voltage can be programmed from 0.8V to 4.4V with an accuracy of ±0.4%. The device features an ultra-low noise and fast settling time, which allows the regulator to be used in noise-sensitive applications. It is available in a tiny SOT-23-5 RoHS package. In addition, the VRH2851NTX is capable of providing up to 100mA of continuous output current and can operate at ambient temperatures of up to +125°C.