LP2981A-33DBVTG4 - Texas Instruments

Manufacturer Part Number

LP2981A-33DBVTG4

Manufacturer

Texas Instruments

Introduction

A highly efficient, low dropout voltage regulator designed for power-sensitive applications.

Product Features and Performance

Linear, Low Drop Out (LDO) regulator

Fixed 3.3V output voltage

Low dropout voltage of 0.37V @ 100mA, optimizing efficiency

Able to supply 100mA output current

Low quiescent current of 95 µA, enhancing battery life

High PSRR of 63dB at 1kHz, minimizing output noise

Features enable control for power saving

Over current, over temperature, and short circuit protection for reliable operation

Product Advantages

High efficiency in power regulation

Minimal power wastage due to low dropout

Suitable for battery-operated devices due to low quiescent current

High noise suppression capabilities

Built-in safety and protection features ensure stability and longevity

Compact surface mount package, ideal for space-constrained applications

Key Technical Parameters

Voltage Input (Max): 16V

Voltage Output (Min/Fixed): 3.3V

Voltage Dropout (Max): 0.37V @ 100mA

Current Output: 100mA

Current Quiescent (Iq): 95 µA

Current Supply (Max): 1.7 mA

Operating Temperature: -40°C ~ 125°C

Quality and Safety Features

Over Current Protection

Over Temperature Protection

Short Circuit Protection

Compatibility

Surface Mount mounting type compatible with common PCB technologies

Housed in an SOT-23-5 package compatible with standard soldering and assembly processes

Application Areas

Portable and battery-powered devices

Microcontrollers and digital systems

Low power consumption and sensitive electronics

Product Lifecycle

Discontinued at Digi-Key

Assessment on replacement or upgrade requirements encouraged

Several Key Reasons to Choose This Product

Texas Instruments' reputation for quality and reliability

High efficiency and low power loss ideal for portable applications

Built-in protections ensure product longevity and safety

Low quiescent current extends battery life

Compact and versatile, fitting a wide range of applications

Effective noise suppression for sensitive electronics