LTC3855EUJ - Linear Technology

Manufacturer Part Number

LTC3855EUJ

Manufacturer

Analog Devices

Introduction

The LTC3855EUJ is a dual-channel synchronous step-down DC/DC switching regulator controller from Analog Devices. It is designed to provide two high-efficiency, current-mode controlled buck regulators from a wide input voltage range of 4.5V to 38V.

Product Features and Performance

Dual-channel synchronous step-down DC/DC controller

Wide input voltage range of 4.5V to 38V

Output voltage adjustable from 0.8V to 99% of VIN

Switching frequency adjustable from 250kHz to 770kHz

95% maximum duty cycle

Cycle-by-cycle current limiting

Soft-start and tracking capabilities

Integrated power good signal

-40°C to 85°C operating temperature range

Product Advantages

Dual-channel design for increased power density and efficiency

Wide input voltage range accommodates a variety of applications

Adjustable switching frequency for flexibility in system design

Robust current limiting and soft-start features for safe operation

Integrated power good signal for system monitoring

Key Reasons to Choose This Product

High-performance dual-channel synchronous buck controller

Wide operating voltage range for versatile power supply solutions

Adjustable switching frequency for optimized system design

Comprehensive protection and monitoring features for reliable operation

Compact 40-WFQFN package for space-constrained applications

Quality and Safety Features

Designed and manufactured to Analog Devices' high-quality standards

Integrated protection features, including current limiting and soft-start

Operating temperature range of -40°C to 85°C for robust performance

Compatibility

The LTC3855EUJ is compatible with a wide range of applications that require a dual-channel, high-efficiency step-down DC/DC converter, such as industrial equipment, telecom systems, and automotive electronics.

Application Areas

Industrial equipment and controls

Telecom and networking infrastructure

Automotive electronics and power systems

General-purpose DC/DC conversion applications

Product Lifecycle

The LTC3855EUJ is an obsolete product, meaning it is no longer in active production. However, Analog Devices may have alternative or equivalent models available that could potentially meet your power management requirements. We recommend contacting our website's sales team for the most up-to-date information on available options.