Manufacturer Part Number
LTC3891IUDC#TRPBF
Manufacturer
Analog Devices
Introduction
The LTC3891IUDC#TRPBF is a low voltage, high performance step-down switching regulator controller from Analog Devices, designed for power management applications.
Product Features and Performance
Step-Down (Buck) regulator topology for efficient down conversion of input voltage.
Operates across a wide input voltage range of 4V to 60V catering to a variety of power sources.
Adjustable switching frequency from 105kHz to 835kHz allows for optimization between efficiency and external component size.
High duty cycle of up to 99% for low dropout operation.
Incorporates synchronous rectification for improved efficiency.
Offers features like current limit, enable, frequency control, power good signal, soft start, and tracking for enhanced control and protection.
Product Advantages
Wide input voltage range supports applications with varying input voltages.
High efficiency conversion reduces power losses and heat generation.
Flexibility in frequency adjustment enables customization for specific application needs.
Comprehensive control and safety features enhance system reliability and performance.
Key Technical Parameters
Voltage Supply (Vcc/Vdd): 4V ~ 60V
Frequency Switching: 105kHz ~ 835kHz, 350kHz ~ 535kHz
Duty Cycle (Max): 99%
Number of Outputs: 1
Output Phases: 1
Operating Temperature: -40°C ~ 125°C (TJ)
Quality and Safety Features
Built-in current limit feature prevents over-current conditions.
Soft start mechanism mitigates inrush current during startup.
Temperature range of -40°C to 125°C ensures operation in extreme conditions.
Compatibility
Surface Mount technology for compatibility with modern PCB assembly processes.
Suitable for use in a wide range of applications due to its flexible input voltage range and adjustable switching frequency.
Application Areas
Automotive systems
Industrial power supplies
Communications equipment
Portable devices and battery-powered electronics
Product Lifecycle
Currently active with no immediate plans for discontinuation, ensuring long-term availability.
Potential for future upgrades or replacements as technology advances.
Several Key Reasons to Choose This Product
Wide input voltage range facilitates use in versatile applications requiring different power levels.
High efficiency and synchronization capability for power saving and heat management.
Flexible control options and protection features ensure customizable and secure operation.
Robust operation in diverse environmental conditions increases applicability across different sectors.
Active product status with ongoing support from Analog Devices guarantees reliability and future-proofing.
LTC3892IFE-1#PBFAnalog Devices Inc.IC REG CTRLR BUCK 28TSSOP