Manufacturer Part Number
LTC3851AIMSE-1#PBF
Manufacturer
Analog Devices
Introduction
The LTC3851AIMSE-1#PBF is a step-down (buck) DC/DC switching controller designed to drive an external MOSFET for high efficiency power conversion.
Product Features and Performance
Step-Down Controller
Positive Output Configuration
Buck Topology
Single Output
Supports 4V to 38V Supply Voltage
Switching Frequency between 235kHz and 750kHz
Up to 99% Duty Cycle
Integrated Synchronous Rectifier for Efficiency
Supports Soft Start and Tracking for Smooth Operation
Product Advantages
High efficiency power conversion reduces thermal footprint
Flexible power supply handling from 4V to 38V
Adjustable frequency allows optimization between efficiency and component size
High duty cycle capable for low dropout operation
Key Technical Parameters
Voltage Supply (Vcc/Vdd): 4V ~ 38V
Frequency Switching: 235kHz ~ 750kHz
Duty Cycle (Max): 99%
Topology: Buck
Operating Temperature: -40°C ~ 125°C (TJ)
Quality and Safety Features
Robust thermal management capability
Operates effectively across wide temperature ranges
Compatibility
Can drive standard external MOSFETs
Wide compatibility with varied power supply specifications
Application Areas
Industrial Power Supplies
Telecommunications Equipment
Automotive Systems
Aerospace and Defense Electronics
Product Lifecycle
The product is currently active
Not nearing discontinuation, and no immediate replacements or upgrades required
Several Key Reasons to Choose This Product
Versatile input voltage range suitable for diverse applications
High switching frequency that allows for smaller peripheral components
High maximum duty cycle facilitating low voltage drops
Integrated features facilitate easy implementation and ensure smooth operation
Reliable performance across wide temperature and voltage ranges
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