The VRH5501NTX is a dropout regulator (LDO) manufactured by AnaSem. It is RoHS compliant and is housed in a small SOT-23-5 package. The VRH5501NTX provides fixed output voltage of 1.2V, supply current of 1mA and maximum output current of 400mA. It features a low dropout voltage of 800mV. It is capable of achieving features such as high efficiency with low ripple, fast transient response, low noise, high power density, wide operating temperature range and improved thermal performance. The VRH5501NTX is optimum for applications requiring low noise and high efficiency, such as digital power supplies, imaging systems and cellular phone applications.