These complete 5V regulators require only one resistor and three external capacitors--no inductors are needed. High switching frequencies (externally adjustable up to 2MHz) and a unique regulation scheme allow the use of capacitors as small as 1F per 100mA of output current. The MAX683/MAX684 are offered in a spacesaving 8-pin MAX package that is only 1.1mm high, while the MAX682 is available in an 8-pin SO.