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
LT3728Linear Technology / Analog Devices
LT3734LT