LT1121CST-5#TRPBF - Analog Devices Inc.

Manufacturer Part Number

LT1121CST-5#TRPBF

Manufacturer

Analog Devices

Introduction

The LT1121CST-5#TRPBF is a low dropout (LDO) linear voltage regulator designed for power management in various electronic applications.

Product Features and Performance

Positive output configuration with fixed voltage output

High Input Voltage Capability up to 30V

Fixed Output Voltage of 5V

Maximum Dropout Voltage of 0.7V at 150mA load

Output Current Capacity of 150mA

Low Quiescent Current of 50 µA

High PSRR of 58dB at 120Hz

Protection Features include Over Temperature and Reverse Polarity Protection

High Operating Temperature Range from 0°C to 125°C

Product Advantages

Efficient handling of low voltage drop at higher output currents

Minimal power loss due to low quiescent current

Robust against temperature variations and reverse voltage scenarios

Key Technical Parameters

Voltage Input (Max): 30V

Voltage Output (Min/Fixed): 5V

Voltage Dropout (Max): 0.7V @ 150mA

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

Mounting Type: Surface Mount

Package / Case: TO-261-4, TO-261AA

Supplier Device Package: SOT-223-3

Application Areas

Suitable for diverse electronics including consumer electronics, automotive systems, and industrial applications

Product Lifecycle

Product Status: Active

Not near discontinuation, availability of replacements or upgrades available within Analog Devices product range

Several Key Reasons to Choose This Product

Reliable performance across extensive input voltage and operating temperature ranges

Enhanced safety features protect against common circuit faults

Low dropout feature maintains voltage regulation despite low input-output voltage difference

Economical power consumption beneficial for battery-powered devices

Highly compatible and easy integration with surface mount technology