LM3544M-L - Texas Instruments

Manufacturer Part Number

LM3544M-L

Manufacturer

Texas Instruments

Introduction

The LM3544M-L is an integrated USB power distribution switch designed for power management.

Product Features and Performance

Four high-side N-Channel output switches

Individual on/off control

Integrated status flag for reporting errors

Current limiting (fixed) for load protection

Over-temperature protection enhances safety

Under Voltage Lock Out (UVLO) feature

Non-inverting input logic

Product Advantages

Optimized for USB power distribution

High integration reduces external component count

Supports a wide operational voltage range of 2.7V to 5.5V

Low Rds (On) of 90mOhm minimizes power loss

Thermal shutdown feature improves system reliability

Key Technical Parameters

Number of Outputs: 4

Voltage Load: 2.7V to 5.5V

Current Output (Max): 500mA

Rds On (Typ): 90mOhm

Operating Temperature Range: -40°C to 125°C

Quality and Safety Features

Current Limiting (Fixed)

Over Temperature Protection

Under Voltage Lock Out (UVLO)

Operating Temperature: -40°C to 125°C

Compatibility

Supports various USB powered devices

Compatible with 16-SOIC surface mount packaging for standard circuit board assembly

Application Areas

USB hubs and devices

Computer peripherals

Consumer electronics

Product Lifecycle

Obsolete status, potential issues with future availability

Consult manufacturer for replacement or upgrade options

Several Key Reasons to Choose This Product

Provided by Texas Instruments, a leader in power management solutions

Robust thermal and fault protection for device safety

Versatile voltage range suitable for a variety of USB-powered applications

Low resistance switch ensures efficient operation

Industry-standard packaging for ease of integration into existing designs