LP2981A-50DBVRG4 - Texas Instruments

Manufacturer Part Number

LP2981A-50DBVRG4

Manufacturer

Texas Instruments

Introduction

The LP2981A-50DBVRG4 is a Low Drop Out (LDO) regulator designed for power-sensitive applications, offering a fixed 5V output from a maximum input of 16V.

Product Features and Performance

Low Dropout: 0.37V @ 100mA

Output Current: 100mA

Quiescent Current: 95 µA

Supply Current (Max): 1.7 mA

Power Supply Rejection Ratio (PSRR): 63dB at 1kHz

Fixed 5V Output Voltage

Over Current, Over Temperature, and Short Circuit Protection

Control features include Enable function for power conservation

Product Advantages

High efficiency for battery-operated devices

Minimal power consumption in standby

Robust protection features enhance device reliability

Compact SC-74A, SOT-753 package suitable for space-constrained applications

Key Technical Parameters

Voltage Input (Max): 16V

Voltage Output (Min/Fixed): 5V

Voltage Dropout (Max): 0.37V @ 100mA

Current Output: 100mA

PSRR: 63dB (1kHz)

Operating Temperature: -40°C ~ 125°C

Quality and Safety Features

Over Current Protection

Over Temperature Protection

Short Circuit Protection

Compatibility

Compatible with a wide range of digital and analog circuits due to its 5V fixed output

Application Areas

Mobile Phones

Portable Media Players

Low-Power Handheld Devices

Battery-Powered Equipment

Product Lifecycle

Discontinued at Digi-Key, indicating it might be nearing the end of its lifecycle. Users should verify availability and seek replacements or upgrades.

Several Key Reasons to Choose This Product

High reliability and robust protection ensure long-term performance

Low dropout voltage maximizes battery efficiency

Ultra-low quiescent current ideal for battery-sensitive applications

Compact form factor enables usage in space-restricted designs

Wide operating temperature range suitable for various environments