LTC3857IUH#TRPBF - Analog Devices Inc.

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