LDO Regulators

A family of three low-voltage, high current low-dropout regulator (LDO) ICs are available from Micrel. They are ideal for powering low-voltage ICs where real estate is limited but performance requirements are high. Manufactured in S-Pak packaging the 3-Amp MIC3730X LDOs provide 1.5 , 1.8 V, or 2.5 V from a minimum supply of 2.25 V or 3.0 V. All devices in the family feature a dropout of 500 mV over all conditions.

The MIC37300 is a three-terminal device, offering application simplicity and high performance. The MIC37301 includes an error flag to warn of fault conditions, and the device provides an enable pin for on/off control. The MIC37302 offers the benefit of an adjustable output voltage as well as on/of control of the output voltage.