The RT9001 series are CMOS low dropout regulators optimized for ultra-fast transient response. The devices are capable of supplying 600mA of output current with a dropout voltage of 580mV respectively. The RT9001 series are is optimized for CD/DVD-ROM, CD/RW or wireless communication supply applications. The RT9001 regulators are stable with output capacitors as low as 1F. The other features include ultra low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio. The devices are available in fixed output voltages range of 1.2V to 4.5V with 0.1V per step. The RT9001 regulators are available in 3-lead SOT-223 package.