LP3874EMPX-3.3/NOPB

LP3871 / LP3874 0.8A快速超低压降线性稳压器 LP3871/LP3874 0.8A Fast Ultra Low Dropout Linear Regulators

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.