LM5642MTC - Texas Instruments

Manufacturer Part Number

LM5642MTC

Manufacturer

Texas Instruments

Introduction

The LM5642MTC is a high-performance step-down switching controller designed for power management, specifically in DC-DC conversion applications.

Product Features and Performance

Dual output transistor driver

Step-down (buck) topology configuration

Supports dual output phases

Synchronous rectification for improved efficiency

Clock synchronization capability

High maximum duty cycle of 98.9%

Wide input voltage supply range from 4.5V to 36V

Switching frequency at 200kHz

Product Advantages

High efficiency and reliability

Multi-phase operation reduces stress and improves performance

Clock synchronization helps in noise reduction in power-sensitive applications

Key Technical Parameters

Output Type: Transistor Driver

Function: Step-Down

Number of Outputs: 2

Output Phases: 2

Voltage Supply (Vcc/Vdd): 4.5V to 36V

Frequency Switching: 200kHz

Duty Cycle (Max): 98.9%

Operating Temperature: -40°C to 125°C (TJ)

Quality and Safety Features

Built-in current limit

Enable feature for controlled operation

Soft start function minimizes inrush current

Compatibility

Compatible for surface mounting (Mounting Type: Surface Mount)

Packaged in a 28-TSSOP (0.173", 4.40mm Width)

Application Areas

Power supply for FPGA, DSP, ASIC

Communication equipment

Complex digital systems requiring efficient power management

Product Lifecycle

Status: Last Time Buy

Important for planning future purchases or system upgrades, as product is nearing discontinuation with limited time for acquisitions.

Several Key Reasons to Choose This Product

High efficiency conducive to power-sensitive applications

Dual phase output for improved system performance

Broad input voltage range suitable for variable power sources

Strong thermal performance and device operation up to 125°C

Integration features like synchronous rectification and clock synchronization reduce additional component needs