Description

This new very low dropout regulator is designed to power the next generation of advanced microprocessors. To achieve very low dropout, the internal pass transistor is powered separately from the control circuitry. Furthermore, with the control and power inputs tied together, this device can be used in single supply configuration and still offer a better dropout voltage than conventional PNP-NPN based LDO regulators. In this mode the dropout is determined by the minimum control voltage.

Features

■ 1.25V to 5V VOUT at 3A

■ VPOWER Dropout < 0.40V @ 3A

■ VCONTROL Dropout < 1.05V @ 3A

■ 1 Trimmed Reference

■ Fast Transient Response

■ Remote Voltage Sensing

■ Thermal Shutdown

■ Current Limit

■ Short Circuit Protection

■ Drop-In Replacement for Semtech EZ1582

■ Backwards Compatible with 3-pin Regulators