Datasheet4U Logo Datasheet4U.com

LP3893 Datasheet 3A Fast-Response Ultra Low Dropout Linear Regulators

Manufacturer: National Semiconductor (now Texas Instruments)

General Description

The LP3893 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

LP3893 3A Fast-Response Ultra Low Dropout Linear Regulators September 2003 LP3893 3A Fast-Response Ultra Low Dropout Linear.

Key Features

  • n n n n n n n n Ultra low dropout voltage (270 mV @ 3A 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, TO-263 packages Over temperature/over current protection.
  • 40˚C to +125˚C junction temperature range.