LP3981ILD-3.0 - Texas Instruments

Manufacturer Part Number

LP3981ILD-3.0

Manufacturer

Texas Instruments

Introduction

LP3981ILD-3.0 is a Low-Dropout (LDO) Linear Voltage Regulator designed to provide a fixed output voltage with high power efficiency and accuracy.

Product Features and Performance

Positive output configuration

Fixed output voltage at 3V

Low voltage dropout of 0.2V at 300mA load

PSRR between 50dB to 55dB at frequencies ranging 1kHz to 10kHz

Support for enabling control feature

Product Advantages

High efficiency in power conversion

Minimal power loss with low dropout feature

Integrated protection against overcurrent, overheating, and short circuits

High stability and reliability over a wide operational temperature range

Key Technical Parameters

Input Voltage (Max): 6V

Output Voltage: 3V

Output Current: 300mA

Quiescent Current (Iq): 120 µA

Supply Current (Max): 210 µA

Voltage Dropout (Max): 0.2V at 300mA load

Power Supply Rejection Ratio (PSRR): 50dB ~ 55dB (1kHz ~ 10kHz)

Operating Temperature: -40°C to 125°C

Quality and Safety Features

Overcurrent protection

Over temperature protection

Short circuit protection

Compatibility

Compatible with surface mount technology for easy PCB integration

Package/Case: 6-WDFN Exposed Pad

Supplier Device Package: 6-WSON (3x4)

Application Areas

Ideal for battery-powered devices, portable electronics, and IoT devices requiring efficient power management

Product Lifecycle

The product is marked as Obsolete

Alternatives or upgrades should be checked for compatibility and specifications

Several Key Reasons to Choose This Product

Guaranteed fixed output with high precision and stability

Efficiency aids in prolonging battery life in portable setups

Low dropout enhances overall power efficiency

Robust protection features ensure long-term reliability

Wide operating temperature range suited for diverse environments and applications