Manufacturer Part Number
LT8643SIV#WPBF
Manufacturer
Analog Devices
Introduction
The LT8643SIV#WPBF is a high-performance step-down Silent Switcher®2 regulator designed for power management applications.
Product Features and Performance
High efficiency synchronous step-down DC/DC converter
Silent Switcher 2 architecture minimizes EMI/EMC emissions
Wide input voltage range from 3V to 42V
Adjustable output voltage from 0.97V to 42V
Maximum output current of 6A
Switching frequency range from 200kHz to 3MHz
Thermally efficient 24-TFQFN package
Supports external synchronization
Product Advantages
Low EMI characteristics suitable for noise-sensitive applications
High efficiency for reduced power loss and better thermal performance
Wide input voltage range compatible with various input supplies
Ability to provide a wide range of output voltages for increased versatility
Optimized for automotive and industrial environments
Key Technical Parameters
Topology: Buck (Step-Down)
Output Configuration: Positive, Adjustable
Number of Outputs: 1
Voltage - Input (Min): 3V
Voltage - Input (Max): 42V
Voltage - Output (Min/Fixed): 0.97V
Voltage - Output (Max): 42V
Current - Output: 6A
Frequency - Switching: 200kHz ~ 3MHz
Synchronous Rectifier: Yes
Operating Temperature: -40°C ~ 125°C (TJ)
Quality and Safety Features
Qualified to AEC-Q100 standards for automotive applications
Operates reliably in extreme temperatures ranging from -40°C to 125°C
Compatibility
Surface Mount 24-LQFN (4x4) Package compatible with standard PCB manufacturing processes
Can be used in conjunction with a wide range of external components
Application Areas
Automotive electronics
Industrial power supplies
Telecommunications equipment
Datacom and servers
Medical and healthcare systems
Product Lifecycle
Product Status: Active
Not indicated as nearing discontinuation, replacements or upgrades should be checked with the manufacturer.
Several Key Reasons to Choose This Product
Exceptionally low EMI emissions for use in RF-sensitive environments
High efficiency and switching frequency allows smaller external components, saving board space
Capable of supporting a wide range of input and output voltages meeting diverse application needs
Robust thermal performance enhancing system reliability
Compliance with automotive qualification standards ensures suitability for use in harsh automotive applications
Flexible switching frequency can be synchronized to external clock signals to manage system-level noise and performance.
LT8645SEV#WPBFADI (Analog Devices, Inc.)
LT8645SEVLT