LP3855

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LP3852, LP3855 SNVS174I – FEBRUARY 2003 – REVISED FEBRUARY 2015 LP385x 1.5-A Fast Response Ultra-Low Dropout Linear Regulators 1 Features 1 Input Supply Voltage: 2.5 V to 7 V Ultra-Low Dropout Voltage Stable with Selected Ceramic Capacitors Low Ground-Pin Current Load Regulation of 0.06% 10-nA Quiescent Current in Shutdown Mode Specified Output Current of 1.5 A DC Output Voltage Accuracy ± 1.5% ERROR Pin Indicates Output Status SENSE Option Improves Load Regulation Overtemperature/Overcurrent Protection −40°C to 125°C Junction Temperature Range 2 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 3 Description The LP3852 and LP3855 series of fast ultra-low dropout linear regulators operate from a 2.5-V to 7-V input supply. A 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 LP3852 and LP3855 are developed on a CMOS process which allows low quiescent-current operation independent of output load current, typically 4 mA at 1.5-A load current. This CMOS process also allows the LP3852 and LP3855 to operate under...