LP3990MFX-3.3 - Texas Instruments

Manufacturer Part Number

LP3990MFX-3.3

Manufacturer

Texas Instruments

Introduction

Linear voltage regulator IC

Provides a fixed 3.3V output

Product Features and Performance

Output current up to 150mA

Wide input voltage range up to 6V

Low dropout voltage: 0.2V at 150mA

Low quiescent current: 80μA

High power supply rejection ratio (PSRR): 55dB at 1kHz, 35dB at 10kHz

Overtemperature and short-circuit protection

Enable control feature

Product Advantages

Stable and reliable voltage regulation

Efficient power management

Compact surface-mount package

Suitable for a wide range of applications

Key Technical Parameters

Input voltage range: Up to 6V

Output voltage: 3.3V fixed

Output current: Up to 150mA

Quiescent current: 80μA

Dropout voltage: 0.2V at 150mA

PSRR: 55dB at 1kHz, 35dB at 10kHz

Operating temperature: -40°C to 85°C

Quality and Safety Features

Overtemperature protection

Short-circuit protection

Compatibility

Surface-mount SOT-23-5 package

Application Areas

Portable electronics

Wireless devices

Industrial control systems

Automotive electronics

Product Lifecycle

This product is currently in production and available for purchase.

Replacement or upgraded products may be available in the future.

Key Reasons to Choose This Product

Reliable and stable voltage regulation

Efficient power management with low quiescent current

Compact surface-mount package for space-constrained designs

Wide operating temperature range for versatile applications

Integrated protection features for improved safety and reliability