●The LP3871 and LP3874 series of fast ultra-low-dropout linear regulators operate from a 2.5-V to 7-V 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 devices are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3871 and LP3874 to operate under extremely low dropout conditions.
●Dropout Voltage:
● Ultra-low-dropout voltage; typically 24 mV at 80-mA load current and 240 mV at 0.8-A load current.
●Ground Pin Current:
● Typically 6 mA at 0.8-A load current.
●Shutdown Mode:
● Typically 10-nA quiescent current when the SD pin is pulled low.
●ERROR Flag:
●ERROR flag goes low when the output voltage drops 10% below nominal value.
●SENSE:
● SENSE pin improves regulation at remote loads.
●Precision Output Voltage:
● Multiple output voltage options are available ranging from 1.8 V to 5 V with a ensured accuracy of ±1.5% at room temperature, and ±3% over all conditions (varying line, load, and temperature).
● Input Voltage: 2.5 V to 7 V
● Ultra-Low-Dropout Voltage
● Low Ground Pin Current
● Load Regulation of 0.04%
● 10-nA Quiescent Current in Shutdown Mode
● Specified Output Current of 0.8-A DC
● Output Voltage Accuracy ±1.5%
● ERROR Flag Indicates Output Status
● SENSE Option Improves Load Regulation
● Minimum Output Capacitor Requirements
● Overtemperature/Overcurrent Protection
● −40°C to +125°C Junction Temperature Range
