LP3891EMR-1.2 - Texas Instruments

Manufacturer Part Number

LP3891EMR-1.2

Manufacturer

Texas Instruments

Introduction

The LP3891EMR-1.2 is a low-dropout linear voltage regulator optimized for power management in various electronic applications.

Product Features and Performance

Output Configuration - Positive

Output Type - Fixed

Number of Regulators - 1

Voltage Dropout (Max) - 0.43V @ 800mA for efficient operation

Current - Output - 800mA for substantial output current provision

Current - Quiescent (Iq) - 30 µA for minimal idle power consumption

PSRR - 80dB to 65dB from 120Hz to 1kHz for excellent power supply rejection

Control Features - Enable for easy power management

Mounting Type - Surface Mount for convenient PCB integration

Operates over wide temperature range (-40°C to 125°C)

Product Advantages

High efficiency due to low dropout voltage

Effective power noise suppression with high PSRR

Fully protected with Over Current, Over Temperature, Short Circuit, UVLO protective features

Small footprint in 8-PowerSOIC package for space-sensitive applications

Key Technical Parameters

Voltage - Input (Max) - 5.5V

Voltage - Output (Min/Fixed) - 1.2V

Current - Supply (Max) - 8 mA

Package / Case - 8-PowerSOIC (0.154", 3.90mm Width)

Supplier Device Package - 8-SO PowerPad

Quality and Safety Features

Protection Features include Over Current, Over Temperature, Short Circuit, UVLO for device reliability and safety

Certified for operation in extended temperature ranges ensuring performance under harsh conditions

Compatibility

Surface mount compatible with standard PCB technology

PowerSOIC package widely accepted in industry-standard designs

Application Areas

Ideal for use in electronic devices requiring stable and efficient low-voltage power supply such as consumer electronics, telecommunications, and industrial equipment

Product Lifecycle

Product Status - Last Time Buy indicating nearing discontinuation

Information on replacement or upgrade options should be sought from Texas Instruments

Several Key Reasons to Choose This Product

Suitable for applications requiring high output current (800mA)

Low quiescent current helps preserve battery life in portable devices

Excellent line and load regulation maintaining steady output despite changes

Availability in Tube packaging for ease of handling and storage

Durable and reliable with inbuilt protection features for long-term usage

Simple enable control feature for efficient power management strategies

Industry-standard package ensuring compatibility with a wide range of circuit designs