LTC3859ALEUHF#PBF - Analog Devices Inc.

Manufacturer Part Number

LTC3859ALEUHF#PBF

Manufacturer

Analog Devices

Introduction

High performance, multiphase synchronous step-up/step-down switching controller for power management applications.

Product Features and Performance

Multifunctional step-down, step-up, and SEPIC controller

3 outputs with 2 output phases

115kHz to 835kHz programmable frequency range

Up to 99% and 100% duty cycle for efficient operation

Synchronous rectification for improved efficiency

Soft start, frequency control, and tracking for versatile power management

Operating temperature range from -40°C to 125°C

Surface mount 38-WFQFN package for compact designs

Product Advantages

Flexible power solution suitable for a wide range of supply voltages

High efficiency with synchronous rectification and variable duty cycle

Multi-phase operation for better load response and lower ripple

Robust thermal and voltage ranges for harsh environments

Key Technical Parameters

Supply Voltage: 4.5V ~ 38V

Switching Frequency: 115kHz ~ 835kHz

Duty Cycle: Max 99% and 100%

Output Phases: 2

Number of Outputs: 3

Quality and Safety Features

Wide operating temperature ensures reliability in extreme conditions

Exposed pad package aids in thermal performance

Compatibility

Compatible with various topologies including Buck, Buck-Boost, and SEPIC

Application Areas

Telecommunications

Automotive electronics

Industrial power systems

Computing and networking systems

Product Lifecycle

Active product status indicates current production with ongoing manufacturer support.

Several Key Reasons to Choose This Product

Versatile for both step-down and step-up applications

Highly efficient with synchronous rectification and high duty cycle

Adjustable switching frequency allows optimization for specific applications

Suitable for use in environments with wide temperature ranges

Active status of product ensures availability and support for integrations