MAX603，MAX604 datasheet pdf5V/3.3V or Adjustable, Low-Dropout,Low IQ, 500mA Linear RegulatorsThe MAX603/MAX604 low-dropout, low quiescent current,linear regulators supply 5V, 3.3V, or an adjustableoutput for currents up to 500mA. They are available in a1.8W SO package. Typical dropouts are 320mV at 5Vand 500mA, or 240mV at 3.3V and 200mA. Quiescentcurrents are 15μA typ and 35μA max. Shutdown turnsoff all circuitry and puts the regulator in a 2μA off mode.A unique protection scheme limits reverse currentswhen the input voltage falls below the output. Other featuresinclude foldback current limiting and thermaloverload protection.