Manufacturer Part Number
LTC3851AEMSE#PBF
Manufacturer
Analog Devices
Introduction
High performance step-down switching regulator controller for power management
Product Features and Performance
Wide supply voltage range of 4V to 38V
Variable switching frequency from 235kHz to 750kHz
Maximum duty cycle of 99%
Supports synchronous rectification
Step-down (Buck) topology
Single output phase
Current limit, enable, frequency control, soft start, and tracking control features
Designed for surface mount technology
Product Advantages
High efficiency due to synchronous rectification
Maintains performance over a wide voltage supply range
Adjustable frequency allows flexibility in design
Soft start feature minimizes inrush current during startup
Key Technical Parameters
Voltage - Supply (Vcc/Vdd): 4V ~ 38V
Frequency - Switching: 235kHz ~ 750kHz
Output Configuration: Positive
Duty Cycle (Max): 99%
Operating Temperature: -40°C ~ 125°C (TJ)
Quality and Safety Features
Robust operating temperature range ensuring reliability in varying environments
Current limit feature to protect against overcurrent conditions
Compatibility
Compatible with 16-TFSOP surface mount packaging standards
Adheres to Power Management (PMIC) industry standards for DC DC Switching Controllers
Application Areas
Power regulation in telecommunications
Computing systems
Consumer electronics
Industrial applications
Product Lifecycle
Product Status: Active
Includes information about replacements or upgrades if nearing discontinuation
Several Key Reasons to Choose This Product
Wide input voltage range supports various sources
High efficiency reduces thermal load and improves system performance
Flexible design options provided by adjustable frequency
Synchronous rectification feature allows for better power conversion efficiency
Suitable for a broad range of operating temperatures, enhancing product reliability