LT1121IST-5#PBF - Analog Devices Inc.

Manufacturer Part Number

LT1121IST-5#PBF

Manufacturer

Analog Devices

Introduction

Low Drop Out Linear Regulator for Power Management

Product Features and Performance

Single Positive Output LDO

Fixed 5V Output Voltage

Supports up to 30V Input Voltage

Max Dropout Voltage 0.7V at 150mA Load

150mA Output Current Capability

Low Quiescent Current of 50 µA

High PSRR of 58dB at 120Hz

Over Temperature and Reverse Polarity Protections

Highly Stable with Low Equivalent Series Resistance Capacitors

Product Advantages

Low Dropout Voltage for Increased Efficiency

Low Quiescent Current for Power Saving

Robust Protection Features Ensure Longevity

High PSRR for Noise Sensitive Applications

Key Technical Parameters

Input Voltage Max: 30V

Output Voltage Fixed: 5V

Current Output: 150mA

Current Quiescent: 50 µA

Dropout Voltage Max: 0.7V

PSRR: 58dB

Operating Temperature Range: -40°C to 125°C

Quality and Safety Features

Over Temperature Protection

Reverse Polarity Protection

Compatibility

Compatible with SOT-223-3 Surface Mountable Package

Application Areas

Consumer Electronics

Telecommunication Systems

Microprocessor Power Supply

Portable Devices

Low Power Applications

Product Lifecycle

Active Product

Not Near Discontinuation

Replacements or Upgrades Not Applicable Currently

Several Key Reasons to Choose This Product

Efficient Power Regulation for Sensible Power Consumption

Ideal for Low Voltage Applications with High Input Voltage Range

Robust Thermal and Reverse Polarity Safeguards

Good Power Supply Ripple Rejection for Noisy Environments

Compact SOT-223 Packaging Suitable for Space-Constrained Applications

Extended Operating Temperature Range Suitable for Industrial Use