The LP3873/LP3876 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 LP3873/LP3876 are developed on a CMOS process
which allows low quiescent current operation independent of output load current. This CMOS process
also allows the LP3873/LP3876 to operate under extremely low dropout conditions.
Dropout Voltage: Ultra low dropout voltage; typically
80mV at 300mA load current and 800mV at 3A load current.
Ground Pin Current: Typically 6mA at 3A load
Shutdown Mode: Typically 1µA quiescent current when the
shutdown pin is pulled low.
Flag:Error flag goes low when the output voltage drops 10% below
SENSE: Sense pin improves regulation at remote
Precision Output Voltage: Multiple output voltage
options are available ranging from 1.8V to 5.0V with an ensured accuracy of ±1.5% at room
temperature, and ±3.0% over all conditions (varying line, load, and temperature).
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