LP3853

LP3853, LP3856 www.ti.com SNVS173G – FEBRUARY 2003 – REVISED APRIL 2013 LP3853/LP3856 3A Fast Response Ultra Low Dropout Linear Regulators Check for Samples: LP3853, LP3856 FEATURES 1 2 Ultra Low Dropout Voltage Stable with Selected Ceramic Capacitors Low Ground Pin Current Load Regulation of 0.08% 10nA Quiescent Current in Shutdown Mode Ensured Output Current of 3A DC Available in TO-263 and TO-220 Packages Output Voltage Accuracy ± 1.5% Error Flag Indicates Output Status Sense Option Improves Load Regulation Overtemperature/overcurrent Protection −40°C to +125°C Junction Temperature Range APPLICATIONS Microprocessor Power Supplies Stable with Ceramic Output Capacitors 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 LP3853/LP3856 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 LP3853/LP3856 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3853/LP3856 to operate under extremely low dropout conditions. Dropout Voltage: Ul...