LP3891 Datasheet 0.8A Fast-Response Ultra Low Dropout Linear Regulators

Manufacturer: Texas Instruments

LP3891 0.8a fast-response ultra low dropout linear regulators by Texas Instruments - Datasheet Preview

Datasheet Details

Part number	LP3891
Manufacturer	Texas Instruments
File Size	787.69 KB
Description	0.8A Fast-Response Ultra Low Dropout Linear Regulators
Datasheet	LP3891 Datasheet

General Description

The LP3891 is a high current, fast response regulator which can maintain output voltage regulation with minimum input to output voltage drop.

Fabricated on a CMOS process, the device operates from two input voltages: Vbias provides voltage to drive the gate of the N-MOS power transistor, while Vin is the input voltage which supplies power to the load.

The use of an external bias rail allows the part to operate from ultra low Vin voltages.

Overview

LP3891 www.ti.com SNVS235D – SEPTEMBER 2003 – REVISED APRIL 2013 LP3891 0.

Key Features

1.
2 Ultra Low Dropout Voltage (100mV at 0.8A typ).
Low Ground Pin Current.
Load Regulation of 0.04%/A.
60 nA Typical Quiescent Current in Shutdown.
1.5% Output Accuracy (25°C).
TO-220, DDPAK/TO-263 and SO PowerPAD-8 Packages.
Over Temperature/Over Current Protection.
40°C to +125°C Junction Temperature Range.

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