LM3503SQ-44 - Texas Instruments

Manufacturer Part Number

LM3503SQ-44

Manufacturer

Texas Instruments

Introduction

The LM3503SQ-44 is a high-efficiency, dual-channel, step-up (boost) DC-DC converter designed to drive high-brightness LEDs for applications such as backlight. It features a wide input voltage range, programmable output current, and PWM/analog dimming control.

Product Features and Performance

Wide input voltage range: 2.5V to 5.5V

Dual-channel LED driver with 750mA output current per channel

1MHz switching frequency

Analog and PWM dimming control

Built-in over-temperature and over-current protection

Compact 16-WFQFN exposed pad package

Product Advantages

High conversion efficiency for extended battery life

Flexible dimming control for optimal LED brightness

Robust protection features for reliable operation

Small footprint for space-constrained designs

Key Reasons to Choose This Product

Optimized for high-brightness LED backlight applications

Delivers high output current with excellent efficiency

Provides reliable and safe operation with built-in protection

Easy to integrate and design with thanks to the compact package

Quality and Safety Features

UL recognized

REACH and RoHS compliant

Automotive-grade qualified

Compatibility

The LM3503SQ-44 is compatible with a wide range of high-brightness LEDs and can be used in various backlight applications, such as LCD displays, mobile devices, and industrial equipment.

Application Areas

Backlight for LCD displays

LED lighting for mobile devices and tablets

Industrial equipment and instrumentation

Product Lifecycle

The LM3503SQ-44 is an obsolete product, meaning it is no longer in active production. However, there are several alternative and equivalent models available, such as the LM3503-Q1, LM3509, and LM3510. Customers are advised to contact our website's sales team for more information on the available options and to discuss their specific requirements.