LTC3857IGN-1#PBF - Analog Devices Inc.

Manufacturer Part Number

LTC3857IGN-1#PBF

Manufacturer

Analog Devices

Introduction

The LTC3857IGN-1#PBF is a high-performance Power Management (PMIC) DC DC Switching Controller designed for a wide range of power conversion applications. It incorporates Analog Devices' PolyPhase® technology for efficient multi-phase power distribution.

Product Features and Performance

Dual output step-down (Buck) switching controller

Supports a wide input voltage range of 4V to 38V

Flexible switching frequency from 105kHz to 835kHz, with a selectable range of 350kHz to 535kHz for optimal performance and efficiency

High duty cycle up to 99.4% for low dropout operations

Features synchronous rectification for improved efficiency

Soft Start, Tracking, Power Good, Enable, and Frequency Control functionalities for advanced power management

Capable of operating in high temperatures, between -40°C and +125°C (TJ)

Product Advantages

Offers efficient power conversion and distribution with its PolyPhase® multi-phase technology

Flexible power solution with dual output and adjustable switching frequencies

High efficiency with synchronous rectification and high duty cycle capabilities

Robust design enables reliable operation in extreme temperature environments

Key Technical Parameters

Number of Outputs: 2

Output Phases: 2

Voltage Supply (Vcc/Vdd): 4V ~ 38V

Frequency Switching: 105kHz ~ 835kHz, selectable to 350kHz ~ 535kHz

Duty Cycle (Max): 99.4%

Operating Temperature: -40°C ~ 125°C (TJ)

Quality and Safety Features

Designed to meet rigorous Analog Devices’ quality and safety standards

Includes protection features and robust thermal management for reliable operation under various conditions

Compatibility

Suitable for surface mount technology with its 28-SSOP package

Compatible with a wide range of power supply designs due to its flexible input voltage and dual output capability

Application Areas

Ideal for computing systems, communications infrastructure, industrial equipment, and other applications requiring efficient power distribution and conversion

Product Lifecycle

Currently in an active phase with no immediate indication of nearing discontinuation

Future replacements or upgrades will be guided by Analog Devices’ ongoing product evolution strategy

Several Key Reasons to Choose This Product

High performance and efficiency with Analog Devices’ PolyPhase® technology

Flexible application range due to dual output and wide input voltage

Enhanced power management capabilities with integrated control features

Reliable operation in extreme conditions with robust design and safety features

Supported by Analog Devices’ reputation for quality and innovation in power management solutions