LT3743EFE - Linear Technology

Manufacturer Part Number

LT3743EFE

Manufacturer

analog-devices

Introduction

The LT3743EFE is a high-efficiency, constant-frequency, current-mode step-down DC/DC controller designed for driving high-current LED arrays. It features a wide 6V to 36V input voltage range and operates at a constant frequency between 200kHz to 1MHz, making it suitable for a variety of LED lighting applications.

Product Features and Performance

Wide input voltage range from 6V to 36V

Constant switching frequency from 200kHz to 1MHz

Current-mode control for easy loop compensation

Integrated high-side MOSFET driver

Single-wire analog or PWM dimming control

Thermal shutdown and current limit protection

Available in a space-saving 28-pin TSSOP package

Product Advantages

High efficiency and wide input voltage range make it suitable for a variety of LED lighting applications

Constant-frequency operation simplifies EMI filtering

Current-mode control provides easy loop compensation and good line and load regulation

Integrated high-side MOSFET driver simplifies the design

Single-wire dimming control for easy implementation

Key Reasons to Choose This Product

Excellent performance and efficiency for LED lighting applications

Wide input voltage range and constant-frequency operation provide design flexibility

Integrated features simplify the design and reduce component count

Reliable and robust with thermal shutdown and current limit protection

Quality and Safety Features

Meets relevant safety and regulatory standards for LED lighting applications

Robust thermal management and protection features ensure reliable operation

Compatibility

Suitable for a wide range of LED lighting applications, including indoor and outdoor lighting, architectural lighting, and industrial lighting

Application Areas

LED lighting, including indoor and outdoor lighting, architectural lighting, and industrial lighting

Product Lifecycle

The LT3743EFE is an obsolete product, meaning it is no longer in active production. However, there are equivalent and alternative models available from Analog Devices. Customers are advised to contact our website's sales team for more information on suitable replacement options.