LT1521IS8-5#PBF - Analog Devices Inc.

Manufacturer Part Number

LT1521IS8-5#PBF

Manufacturer

Analog Devices

Introduction

The LT1521IS8-5#PBF is a low-dropout linear regulator designed for power management, specifically in applications requiring low voltage drop and high-performance regulation.

Product Features and Performance

Fixed output voltage of 5V

Maximum input voltage of 20V

Maximum output current of 300mA

Low dropout voltage of 0.75V at 300mA load

Low quiescent current of 25 µA

High power supply rejection ratio (PSRR) of 58dB at 120Hz

Temperature operating range from -40°C to 125°C

Product Advantages

High efficiency due to low quiescent current and low dropout voltage

Robust performance in wide temperature ranges

Enhanced power supply stability and noise rejection

Key Technical Parameters

Voltage Input (Max): 20V

Voltage Output (Min/Fixed): 5V

Current Output: 300mA

Voltage Dropout (Max): 0.75V @ 300mA

Current Quiescent (Iq): 25 µA

PSRR: 58dB (120Hz)

Quality and Safety Features

Protection Features: Over Current, Over Temperature, Reverse Polarity

Compatibility

Mounted using Surface Mount technology

Compatible with 8-SOIC packaging

Application Areas

Ideal for battery-powered devices

Suitable for portable electronic devices, automotive applications, and microprocessor power supply

Product Lifecycle

Product Status: Active

Not nearing discontinuation; replacement and upgrade options are available

Several Key Reasons to Choose This Product

Minimizes power loss with ultra-low dropout performance

Ensures device safety through comprehensive protection features

Supports design flexibility due to compatibility with common SMT practices

Long-term reliability shown through wide operating temperature range

Ideal for low-power applications to enhance battery life