LT1121IS8-5#TRPBF - Analog Devices Inc.

Manufacturer Part Number

LT1121IS8-5#TRPBF

Manufacturer

Analog Devices

Introduction

The LT1121IS8-5#TRPBF is a low dropout (LDO) linear regulator designed for power management applications, particularly in compact and heat-sensitive environments.

Product Features and Performance

High accuracy fixed output voltage of 5V

Supports input voltage up to 30V

Maximum dropout voltage of 0.7V at 150mA load

Output current capacity of 150mA

Low quiescent current of 50 µA

High power supply rejection ratio of 58dB at 120Hz

Integrated features for Enable control

Over Temperature and Reverse Polarity protection

Product Advantages

Provides stable and reliable output voltage

Suitable for high-input voltage applications

Efficient performance with low dropout

Minimal power consumption in idle state

Robust protection features enhance safety and device longevity

Key Technical Parameters

Voltage Input (Max): 30V

Voltage Output (Min/Fixed): 5V

Current Output: 150mA

Current Quiescent (Iq): 50µA

PSRR: 58dB (120Hz)

Operating Temperature: -40°C ~ 125°C

Quality and Safety Features

Over Temperature Protection

Reverse Polarity Protection

Built to operate reliably in a wide range of temperatures

Compatibility

Compatible with various applications requiring 5V fixed output within specified current and temperature ranges

Mounting Type: Surface Mount

Package / Case: 8-SOIC

Application Areas

Power management in compact electronic devices

Automotive electronics

Telecommunication systems

Portable devices

Product Lifecycle

Status: Active

Not nearing discontinuation

Standard product with ongoing manufacturer support and availability

Several Key Reasons to Choose This Product

High input voltage capability up to 30V for versatile use in diverse applications

Low dropout voltage ensures efficient operation minimizing power loss

Ultra-low quiescent current helps to preserve battery life in portable setups

Comprehensive protection features for improved reliability and durability in harsh environments

Stable output with high PSRR ideal for noise-sensitive applications