The RT9179 is a high performance linear voltage regulatorwith enable high function and adjustable output with a1.175V reference voltage. It operates from an input of 3Vto 5.5V and provides output current up to 300mA with twoexternal resistors to set the output voltage ranges from1.175V to 4.5V.The RT9179 has superior regulation over variations in lineand load. Also it provides fast respond to step changes inload. Other features include over-current and overtemperatureprotection. The device has enable pin to reducepower consumption in shutdown mode.The devices is available in the popular SOT-23-5 package.