Manufacturer Part Number
LTC3891HUDC#PBF
Manufacturer
Analog Devices
Introduction
The LTC3891HUDC#PBF is a high-performance step-down switching controller designed for power management applications.
Product Features and Performance
Single output transistor driver
Buck topology optimizes it for step-down applications
Voltage supply range from 4V to 60V
Dual-frequency switching: 105kHz to 835kHz and 350kHz to 535kHz
Maximum duty cycle of 99%
Integrated synchronous rectifier for improved efficiency
Supports current limit, enable, frequency control, power good, soft start, and tracking control features
Product Advantages
Wide input voltage range allows for flexible application use
High-efficiency synchronous operation
Dual selectable frequencies to optimize performance
Advanced control features ensure stable and reliable operation
Key Technical Parameters
Topology: Buck
Output Phases: 1
Voltage Supply (Vcc/Vdd): 4V ~ 60V
Frequency Switching: 105kHz ~ 835kHz, 350kHz ~ 535kHz
Duty Cycle (Max): 99%
Operating Temperature: -40°C ~ 150°C (TJ)
Quality and Safety Features
Operation temperature range supports harsh environments
Current limiting and thermal shutdown for enhanced safety
Compatibility
Surface mount package supports standard PCB manufacturing processes
Application Areas
Distributed Power Systems
Industrial Power Supplies
Automotive Electronics
Telecommunication Equipment
Product Lifecycle
Currently active with ongoing support
No reported plans for discontinuation or replacements at this moment
Several Key Reasons to Choose This Product
Versatile input voltage range applicable for multiple industries
Dual-frequency operation allows customization for specific application needs
High maximum duty cycle facilitates near-continuous operation
Robust temperature range grants operation in extreme environments
Comprehensive control features enhance performance, safety, and reliability