The MAS9485 is a low dropout voltage regulator with an enable/disable pin, which allows device to be turned off or on by pulling control to low or high. Due to the low noise level of only 30 Vrms, MAS9485 is suitable for sensitive circuits, e.g., in portable applications. In addition to the noise levels, MAS9485 excels in dropout voltage (150 mV typical at 100 mA) and rise time (15 s typical without bypass capacitor.