LM5642XMH - Texas Instruments

Manufacturer Part Number

LM5642XMH

Manufacturer

Texas Instruments

Introduction

The LM5642XMH is a high-performance, dual-channel, synchronous step-down DC-DC switching regulator controller from Texas Instruments.

Product Features and Performance

High-efficiency synchronous buck converter

Supports wide input voltage range from 4.5V to 36V

Switching frequency of 375kHz

Current limiting and soft-start control

Synchronization capability for multiple channels

Maximum duty cycle of 98.9%

Supports two-phase operation

Product Advantages

High efficiency power conversion

Wide input voltage range for versatile applications

Fast transient response and tight regulation

Comprehensive protection features

Flexible configuration for multi-phase operation

Key Technical Parameters

Input voltage range: 4.5V to 36V

Switching frequency: 375kHz

Maximum duty cycle: 98.9%

Number of outputs: 2

Output configuration: Positive

Synchronous rectification: Yes

Operating temperature range: -40°C to 125°C

Quality and Safety Features

RoHS non-compliant

28-pin HTSSOP package

Compatibility

The LM5642XMH is compatible with a wide range of applications that require a high-performance, dual-channel, synchronous step-down DC-DC switching regulator.

Application Areas

Industrial and automation equipment

Telecom and networking infrastructure

Automotive and transportation systems

Medical devices

Consumer electronics

Product Lifecycle

The LM5642XMH is an active product from Texas Instruments. Replacement or upgrade options may be available, but the product is not nearing discontinuation.

Key Reasons to Choose This Product

Wide input voltage range for versatile applications

High efficiency power conversion with synchronous rectification

Flexible multi-phase operation for improved power delivery

Comprehensive protection features for reliable performance

Compact 28-pin HTSSOP package for space-constrained designs