LT1121CST-5#PBF - Analog Devices Inc.

Manufacturer Part Number

LT1121CST-5#PBF

Manufacturer

Analog Devices

Introduction

Low Drop Out linear voltage regulator ideal for power management applications

Product Features and Performance

Positive fixed output voltage regulator

Single regulator configuration

Maximum input voltage of 30V

5V output voltage

Low 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

Includes enable control feature for power saving

Product Advantages

High efficiency with low dropout performance

Low idle power consumption

Robust protection features against over temperature and reverse polarity incidents

Wide operating temperature range from 0°C to 125°C

Compact surface mount package suitable for densely populated PCBs

Key Technical Parameters

Voltage Input (Max): 30V

Voltage Output (Min/Fixed): 5V

Current Output: 150mA

Current Quiescent (Iq): 50 µA

PSRR: 58dB (120Hz)

Operating Temperature: 0°C ~ 125°C

Quality and Safety Features

Over Temperature Protection

Reverse Polarity Protection

Compatibility

Surface mount technology compatible

SOT-223-3 package ensures standardized integration

Application Areas

Consumer Electronics

Portable Devices

Telecommunication Systems

Power Supplies

Computer Systems

Product Lifecycle

Currently active status

No known discontinuation, with ongoing support for replacements or upgrades

Key Reasons to Choose This Product

Reliable performance from a reputable manufacturer, Analog Devices

Ideal for applications where power efficiency is critical

Low power consumption for battery-powered devices

Stable output with high PSRR for sensitive loads

Suitable for a wide range of operating temperatures

Easy to integrate into existing designs with surface mount packaging