LP3871EMP-3.3 - Texas Instruments

Manufacturer Part Number

LP3871EMP-3.3

Manufacturer

Texas Instruments

Introduction

The LP3871EMP-3.3 is a low-dropout linear regulator optimized for power management.

Product Features and Performance

Low dropout voltage of 0.35V at 800mA output

Fixed 3.3V output voltage

800mA output current capability

Good ripple rejection with 73dB to 57dB PSRR at 120Hz

Low quiescent current of 5 mA

Enable control feature for power-saving

Product Advantages

High efficiency due to low dropout voltage

Stable output with excellent PSRR

Low ground pin current at full load

Thermal shutdown and short-circuit protection for safety

Key Technical Parameters

Output Voltage: 3.3V

Input Voltage (Max): 7V

Current - Output: 800mA

Current - Quiescent (Iq): 5 mA

Voltage Dropout (Max): 0.35V

PSRR: 73dB ~ 57dB

Quality and Safety Features

Over Current protection

Over Temperature protection

Short Circuit protection

Compatibility

The SOT-223-5 package is compatible with similar footprint regulators

Application Areas

Suitable for consumer electronics, power supply modules, and other electronic devices requiring a stable 3.3V

Product Lifecycle

Obsolete - may need to consider replacements or upgrades

Several Key Reasons to Choose This Product

High-efficiency power conversion

Compact SOT-223-5 package suitable for space-constrained applications

Built-in safety features ensure long-term reliability

Low quiescent current suitable for battery-powered devices

Good thermal performance with -40°C to 125°C operating temperature range