3.0 A LDO 5−Pin Adjustable Linear Regulator

This new very low dropout linear regulator reduces total power dissipation in the application. 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. 2

Features

• VOUT Range Is 1.25 V to 5.0 V @ 3.0 A

• VPOWER Dropout < 0.40 V @ 3.0 A

• VCONTROL Dropout < 1.05 V @ 3.0 A

• 1.0 Trimmed Reference

• Fast Transient Response

• Remote Voltage Sensing

• Thermal Shutdown

• Current Limit

• Short Circuit Protection

• Drop−In Replacement for EZ1582

• Backwards Compatible with 3−Pin Regulators

• Very Low Dropout Reduces Total Power Consumption

• Pb−Free Package is Available*