Manufacturer Part Number
LTC3857IUH#TRPBF
Manufacturer
Analog Devices
Introduction
The LTC3857IUH#TRPBF is a high-performance, PolyPhase® step-down DC DC Switching Controller designed for power management applications.
Product Features and Performance
Supports step-down (buck) conversion
Dual output phases for efficient power distribution
Versatile supply voltage range from 4V to 38V
Adjustable switching frequency between 105kHz and 835kHz, with a secondary range from 350kHz to 535kHz
Maximizes power efficiency with up to 99.4% duty cycle
Incorporates synchronous rectification for improved efficiency
Features include Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start, and Tracking for comprehensive control
Product Advantages
Enhanced power efficiency and flexibility in managing different power levels
Robust design for reliable operation across a wide voltage range
Dual output phases help reduce thermal stress and distribute load more effectively
High duty cycle maximizes power transmission efficiency
Synchronous rectification enhances overall energy efficiency
Key Technical Parameters
Voltage Supply (Vcc/Vdd): 4V ~ 38V
Frequency Switching: 105kHz ~ 835kHz, secondary range 350kHz ~ 535kHz
Duty Cycle (Max): 99.4%
Operating Temperature: -40°C ~ 125°C
Quality and Safety Features
Built for robust and reliable operation in extreme temperatures
Complies with industry standards for safety and performance
Compatibility
Suited for surface mount technology (SMT) with 32-WFQFN Exposed Pad package
Flexible for integration in diverse electronic circuits and systems
Application Areas
Ideal for power management in telecommunications, computing, industrial applications, and high-performance electronics
Product Lifecycle
Status: Active
Continues to be manufactured and supported, with no current indication of nearing discontinuation
Several Key Reasons to Choose This Product
High efficiency and flexibility in voltage and frequency adjustments cater to various application needs
Suitable for systems requiring precise power control and distribution, enhancing performance and reliability
Longevity and reliability of the product ensure a sustainable supply and support
Advanced features like synchronous rectification and dual-phase output optimize power usage and efficiency
LTC3857EUHLinear Technology / Analog Devices