LM3489MMX - Texas Instruments

Manufacturer Part Number

LM3489MMX

Manufacturer

Texas Instruments

Introduction

The LM3489MMX is a high-efficiency, automotive-grade, step-down DC-DC switching controller designed for power management applications.

Product Features and Performance

Step-down (Buck) topology

Transistor driver output type

Supports a single output with a positive output configuration

Frequency switching up to 1MHz

Capable of 100% duty cycle

Operates from a supply voltage of 4.5V to 35V

Current limit and enable control features

Product Advantages

High efficiency for power-sensitive applications

Automotive-grade qualification (AEC-Q100) ensures reliability in automotive environments

High switching frequency allows for smaller external components

Wide input voltage range accommodates various sources

Key Technical Parameters

Voltage Supply (Vcc/Vdd): 4.5V ~ 35V

Frequency Switching: Up to 1MHz

Duty Cycle (Max): 100%

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

Quality and Safety Features

AEC-Q100 qualified

Overcurrent protection with built-in current limit

Compatibility

Compatible with a wide range of input voltages and standard surface mount technologies

Application Areas

Automotive power systems

Portable electronics

Power management solutions

Product Lifecycle

The LM3489MMX is listed as an obsolete product. Users should seek replacements or consider upgrades for continuous production.

Several Key Reasons to Choose This Product

High reliability and performance in automotive and other demanding environments

Flexible power solution due to wide input voltage range and high max duty cycle

Compact and efficient design possible due to high switching frequency

AEC-Q100 qualification ensures compliance and quality for automotive applications