LM3544MX-L - Texas Instruments

Manufacturer Part Number

LM3544MX-L

Manufacturer

Texas Instruments

Introduction

The LM3544MX-L is part of the Power Management (PMIC) Power Distribution Switches, Load Drivers category, designed by Texas Instruments for efficient power distribution, particularly for USB applications.

Product Features and Performance

Efficient power distribution for USB devices

Four output channels for multiple device support

High Side output configuration improves safety and simplicity in design

N-Channel output type for better conduction and efficiency

On/Off interface for easy control

Operates at a voltage range of 2.7V to 5.5V, accommodating various USB devices

Does not require external voltage supply for operation (Vcc/Vdd)

Provides up to 500mA output current per channel

Features a low Rds (On) of 90mOhm for enhanced power efficiency

Non-Inverting input type supports straightforward integration

Status Flag feature for real-time monitoring

Incorporates multiple fault protection mechanisms including Current Limiting, Over Temperature Protection, and Under Voltage Lock Out (UVLO) for enhanced safety

Product Advantages

Multiple protection features significantly reduce risk of device damage

High integration capability with four outputs in a compact design

Low Rds (On) ensures minimal power loss and heat generation

Broad operating temperature range (-40°C to 125°C) suitable for various environments

Surface Mount technology facilitates miniaturized and automated manufacturing processes

Key Technical Parameters

Number of Outputs: 4

Voltage Load: 2.7V ~ 5.5V

Current Output (Max): 500mA

Rds On (Typ): 90mOhm

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

Package: 16-SOIC

Quality and Safety Features

Current Limiting (Fixed)

Over Temperature Protection

UVLO (Under Voltage Lock Out)

Compatibility

Designed primarily for USB powered devices requiring efficient power distribution

Compatible with a wide range of USB devices due to its voltage range and current capabilities

Application Areas

USB Hubs

USB Peripheral Devices

Power Distribution Units for Consumer Electronics

Mobile and Portable USB Devices

Product Lifecycle

Status: Obsolete

Note: As the product is obsolete, potential buyers should consider availability of replacements or upgrades for future applications

Several Key Reasons to Choose This Product

Highly integrated power distribution solution for up to four USB devices

Multiple safety features guard against common electrical faults

Low Rds (On) translates to higher efficiency and lower heat

Broad operating temperature range supports use in various environments

Obsolete status may favor applications with specific legacy requirements where this model's unique characteristics are essential