LTC7149IFE#PBF - Analog Devices Inc.

Manufacturer Part Number

LTC7149IFE#PBF

Manufacturer

Analog Devices

Introduction

High-Performance Buck Regulator for Negative Output Voltage Applications

Product Features and Performance

Step-Down Converter

Negative Output Configuration

Buck Topology

Adjustable Output Type

Single Output

4V to 60V Input Voltage Range

0V to -28V Adjustable Output Voltage

4A Output Current Capacity

1MHz Switching Frequency

Built-In Synchronous Rectifier

Optimized for Fast Transient Response

Thermally Enhanced 28-TSSOP-EP Package

Stable with Ceramic Output Capacitors

Product Advantages

High Efficiency for Thermal Management

Wide Input Voltage Range Supporting Various Applications

Flexible Output Voltage for Diverse Circuit Requirements

High Switching Frequency Reduces External Component Size

Synchronous Operation for Better Efficiency at Light Loads

Thermal Protection Ensures Reliable Operation

Key Technical Parameters

Voltage - Input (Min): 3.4V

Voltage - Input (Max): 60V

Voltage - Output (Min/Fixed): 0V

Voltage - Output (Max): -28V

Current - Output: 4A

Frequency - Switching: 1MHz

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

Quality and Safety Features

Over-Temperature Protection

High Reliability

Built-in Current Limiting

Robust Thermal Performance with Exposed Pad Package

Compatibility

Compatible with Surface Mount Technology

28-TSSOP Mounting for PCB Efficiency

Application Areas

Industrial Power Supplies

Telecommunications Equipment

Negative Voltage Generators

Automotive Electronics

Distributed Power Systems

Product Lifecycle

Status: Active

Not Nearing Discontinuation

Availability of Replacements or Upgrades

Several Key Reasons to Choose This Product

Suited for Rugged Industrial Applications due to Wide Temperature Range

High Flexibility for Use in Multiple Voltage Environments

Space Savings with High Frequency Operation and Use of Small Inductors and Capacitors

Enhanced Reliability through Integrated Safety Features

Ease of Use with Minimal External Components Required

Optimal Power Solution for Negative Output Voltage Applications