LT1121CS8-3.3#TRPBF - Analog Devices Inc.

Manufacturer Part Number

LT1121CS8-3.3#TRPBF

Manufacturer

analog-devices

Introduction

LT1121CS8-3.3#TRPBF is a linear, low dropout (LDO) voltage regulator designed for power management, capable of delivering a fixed 3.3V output from an input up to 30V.

Product Features and Performance

Low dropout voltage: 0.7V @ 150mA

Output current: 150mA

Quiescent current: 50 µA

Maximum supply current: 14 mA

Power supply rejection ratio (PSRR): 58dB at 120Hz

Control features include Enable function

Protection against over temperature and reverse polarity

Product Advantages

High efficiency due to low dropout

Minimal power loss

Extended battery life with low quiescent current

Robust protection features enhance reliability

Supports design flexibility with Enable function

Key Technical Parameters

Input Voltage (Max): 30V

Output Voltage (Min/Fixed): 3.3V

Voltage Dropout (Max): 0.7V @ 150mA

Output Current: 150mA

Quiescent Current (Iq): 50 µA

Supply Current (Max): 14 mA

PSRR: 58dB (120Hz)

Operating Temperature: 0°C ~ 125°C

Quality and Safety Features

Overtemperature protection ensures safe operation under excessive heat

Reverse polarity protection prevents damage from incorrect power supply connection

Compatibility

Compatible with applications requiring a stable 3.3V output

Surface Mount, 8-SOIC package for easy integration into varied designs

Application Areas

Portable devices

Battery-powered equipment

Microcontrollers and digital systems

Wireless communication modules

Product Lifecycle

Status: Active

Not nearing discontinuation, ensuring long-term availability

Several Key Reasons to Choose This Product

High input voltage range up to 30V allows versatility in applications

Low dropout voltage ensures efficient operation and power saving

Ultra-low quiescent current extends battery life for portable applications

Comprehensive protection features guarantee reliability and product longevity

Active product status with Analog Devices' reputation for quality and support