Product Model

LM5003MTCX/NOPB

Introduction

High-Voltage 3.5A Step-Down Regulator

Brand and Manufacturer

Texas Instruments (TI)

Features

High efficiency with peak of 92%

Integrated 75V N-Channel Buck Switch

Intelligent Current Limiting

Thermal Shutdown

Frequency Adjustability with Single Resistor

Programmable Soft-Start

Supports pre-biased startup

Product Performance

Output voltage adjustable from 3.3V to 50V

Switching frequency adjustable up to 500 kHz

5A continuous output current

Wide input voltage range from 6V to 75V

Technical Specifications

High-side current sense

Voltage mode control with feed-forward

Stable with low ESR ceramic capacitors

Cycle-by-cycle current limit

Input undervoltage lockout

Dimensions, Shape, and Packaging

Thermally-enhanced TSSOP-16 package

Supplied in tape and reel packaging for automated assembly

Quality and Reliability

Built-in thermal shutdown protection

Overcurrent protection with hiccup mode

Automotive-grade product available

Product Advantages

Highly efficient for power-sensitive applications

Easy to use with minimal external components

Robust design suitable for harsh environments

Product Competitiveness

Optimized balance of performance and cost

Supports wide range of applications due to flexible design

Compatibility

Flexible for use in a variety of step-down applications

Can be used with a wide array of inductors and capacitors

Standard Certification and Compliance

Meets or exceeds industry standards for quality and reliability

RoHS compliant

Automotive qualification in accordance with AEC-Q100 (Grade 1)

Lifespan and Sustainability

Designed for long-term reliability

Builds on TI’s proven manufacturing techniques for extended life

Actual Application Fields

Automotive systems

Industrial power supplies

Telecommunications equipment

Distributed power architectures

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