LeeThe AH1117CLTR50 is a Linear Voltage Regulator (LDO) in a SOT-223 package from Belling-Lee, that is RoHS compliant. It is a low dropout, low noise voltage regulator designed for applications requiring low quiescent current. It has an input voltage range of 4.5V to 40V, and outputs 5V at an ultra-low, 50mA current. The AH1117CLTR50 also features a low power, "Power-Down" mode to further reduce power consumption. This feature allows an external control pin to shut down the device when there is no load. The two intergrated-oscillator frequencies allow for improved performance in system noise reduction and stability. The AH1117CLTR50 is an ideal choice for applications that requires high speed, good accuracy, low noise, and ultra-low quiescent current.