LP3966

LP3963, LP3966 www.ti.com SNVS067H – APRIL 2000 – REVISED APRIL 2013 LP3963/LP3966 3A Fast Ultra Low Dropout Linear Regulators Check for Samples: LP3963, LP3966 FEATURES 1 2 Ultra Low Dropout Voltage Low Ground Pin Current Load Regulation of 0.06% 15µA Quiescent Current in Shutdown Mode Specified Output Current of 3A DC Available in DDPAK/TO-263 and TO-220 Packages Output Voltage Accuracy ± 1.5% Error Flag Indicates Output Status (LP3963) Sense Option Improves Load Regulation (LP3966) Minimum Output Capacitor Requirements Overtemperature/Overcurrent Protection −40°C to +125°C Junction Temperature Range APPLICATIONS Microprocessor Power Supplies GTL, GTL+, BTL, and SSTL Bus Terminators Power Supplies for DSPs SCSI Terminator Post Regulators High Efficiency Linear Regulators Battery Chargers Other Battery Powered Applications DESCRIPTION The LP3963/LP3966 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V input supply. Wide range of preset output voltage options are available. These ultra low dropout linear regulators respond very quickly to step changes in load which makes them suitable for low voltage microprocessor applications. The LP3963/LP3966 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3963/LP3966 to operate under extremely low dropout conditions. Dropout Voltage: Ultra low dropout voltage; typi...