LTC3894IFE#TRPBF - Analog Devices Inc.

Manufacturer Part Number

LTC3894IFE#TRPBF

Manufacturer

Analog Devices

Introduction

High voltage step-down DC DC switching controller for power management applications

Product Features and Performance

Supports step-down (buck) conversion

Single output transistor driver

Topology is buck

One output phase

Synchronous rectification for improved efficiency

Clock synchronization capability

Features current limit, enable, frequency control, power good, and soft start control functions

High voltage supply capability ranging from 4.5V to 150V

Adjustable switching frequency from 50kHz to 850kHz

Maximum duty cycle of 100%

Designed for surface mount technology with a 20-TSSOP-EP package

Product Advantages

High input voltage range suitable for various applications

Integrated synchronous rectifier to minimize power losses

Soft start function to prevent inrush current and ensure smooth startup

Power good signal for power sequence management

Frequency synchronization to reduce electromagnetic interference (EMI)

Key Technical Parameters

Voltage - Supply (Vcc/Vdd): 4.5V ~ 150V

Frequency - Switching: 50kHz ~ 850kHz

Duty Cycle (Max): 100%

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

Package: 20-TSSOP (0.173", 4.40mm Width), 16 Leads, Exposed Pad

Quality and Safety Features

Operational temperature range suitable for industrial environments

Built-in current limit function for protection against overcurrent conditions

Compatibility

Compatible with a range of high voltage power supply designs

Suitable for surface mount technology

Application Areas

Power management for industrial systems

Automotive electronics

Telecommunications equipment

Data center power supplies

Product Lifecycle

Status: Active

Continued manufacturer support with no near-term discontinuation

Replacements or upgrades available as new technologies emerge

Several Key Reasons to Choose This Product

Efficient power conversion through synchronous rectification and buck topology

Flexible power supply operation with wide voltage range

Customizable switching frequency for design optimization

Robust thermal and operational temperature specs for demanding environments

Comprehensive control features to enhance performance and safety

Reputable manufacturer Analog Devices ensures reliability and support