LT3741EFE#PBF - Analog Devices Inc.

Manufacturer Part Number

LT3741EFE#PBF

Manufacturer

Analog Devices

Introduction

The LT3741 is a fixed frequency step-down DC/DC controller designed to drive an external transistor in high power buck converter applications.

Product Features and Performance

Fixed frequency, voltage-mode control architecture

Wide input voltage range from 6V to 36V

Capable of switching frequencies from 200kHz to 1MHz

Integrated synchronous rectifier driver for improved efficiency

Frequency synchronization capability

Features include enable, frequency control, and soft start for ease of use

Supports single output with a one-phase configuration

Operating temperature range from -40°C to 125°C

Product Advantages

High efficiency due to synchronous rectification

Flexible design options with adjustable switching frequency

Robust thermal performance with an exposed pad TSSOP package

Wide input voltage range suitable for various applications

Key Technical Parameters

Supply Voltage (Vcc/Vdd): 6V to 36V

Switching Frequency: 200kHz to 1MHz

Topology: Buck

Number of Outputs: 1

Output Configuration: Positive

Synchronous Rectifier: Yes

Clock Sync: Yes

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

Quality and Safety Features

Precise control loop for steady performance

Thermal shutdown for over-temperature protection

Compatibility

Suitable for driving an external N-channel MOSFET

Compatible with high power buck converter topologies

Can be employed in various designs due to the TSSOP-20 package

Application Areas

Automotive and industrial power systems

High power LED lighting

Battery-powered equipment

Telecommunications infrastructure

Product Lifecycle

Status: Active

Not reported as nearing discontinuation

Replacements or upgrades should be checked with manufacturer for the latest information

Several Key Reasons to Choose This Product

High integration level for simplified design and reduced external component count

Wide input voltage suitable for diverse power supply conditions

High efficiency and optimal power management through synchronous rectification

Stable operation across a wide temperature range

Flexibility in design for various applications due to adjustable switching frequency

Reliable performance with built-in safety and control features

Supported by Analog Devices’ reputation for high-quality power management products