LT1585CT

7A, 4.6A, 3A Low Dropout Fast Response Positive Regulators Adjustable and Fixed

DESCRIPTION

The LT ®1584/LT1585/LT1587 are low dropout three terminal regulators with 7A, 4.6A and 3A output current capability, respectively. Design has been optimized for low voltage applications where transient response and minimum input voltage are critical. Similar to the LT1083/4/5 family, it has lower dropout voltage and faster transient response. These improvements make it ideal for low voltage microprocessor applications requiring a regulated 2.5V to 3.6V output with an input supply below 7V.

Current limit is trimmed to ensure specified output current and controlled short-circuit current. On-chip thermal limiting provides protection against any combination of overload that would create excessive junction temperatures.

FEATURES

■ Fast Transient Response

■ Guaranteed Dropout Voltage at Multiple Currents

■ Load Regulation: 0.05% Typical

■ Trimmed Current Limit

■ On-Chip Thermal Limiting

■ Standard 3-Pin Power Package

APPLICATIO S U

■ Pentium™ Processor Supplies

■ PowerPC™ Supplies

■ Other 2.5V to 3.6V Microprocessor Supplies

■ Low Voltage Logic Supplies

■ Battery-Powered Circuitry

■ Post Regulator for Switching Supply