General Description
The MAX1598 low-noise, low-dropout linear regulator operates from a 2.5V to 6.5V input and delivers up to 200mA. Typical output noise is 30µVRMS, and typical dropout is only 236mV at 200mA. The output voltage is preset to voltages from 2.5V to 5V in 100mV increments.

Features
♦ 200mA Output Current
♦ Low Output Noise: 30µVRMS
♦ Low 55mV Dropout at 50mA Output
♦ Low 85µA No-Load Supply Current
♦ Low 100µA Operating Supply Current, Even in Dropout
♦ Thermal-Overload and Short-Circuit Protection
♦ Reverse Battery Protection
♦ Output Current Limit
♦ Preset Output Voltages
♦ 10nA Logic-Controlled Shutdown

Applications
    Cellular, Cordless, and PCS Phones
    PCMCIA Cards
    Modems
    Hand-Held Instruments
    Palmtop Computers
    Electronic Planners