Low Dropout Regulators
These micropower regulators are ideal for portable RF applications. In operation, the MIC5255/6 draws only 90 uA and "zero" current in the off-mode. The MIC5255/6 also offers best-in-class dropout voltage (135mV @ 150mA), load transient response (output settles in < 10us from a change in load), and noise performance. Optimized for ultra-low-noise performance, the MIC5255 features a noise bypass pin to further reduce the output noise to 30 uVrms. The MIC5256 provides an error flag to indicate detection of an over-current, thermal shutdown, or dropout condition.
Applications include cellular phones & pagers, cellular phone accessories, battery-power equipment, laptop, notebook & palm computers.