LTC3894EFE#TRPBF - Analog Devices Inc.

Manufacturer Part Number

LTC3894EFE#TRPBF

Manufacturer

Analog Devices

Introduction

High voltage step-down switching regulator controller capable of driving a high side N-channel MOSFET for DC/DC conversion.

Product Features and Performance

High voltage input capability up to 150V

Step-down (buck) regulator topology

Single output transistor driver

Supports a duty cycle up to 100%

Synchronous rectification for improved efficiency

Frequency switching range from 50kHz to 850kHz

Enables clock synchronization

Integrated features for current limit, enable, frequency control, power good signal, and soft start functionality

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

Surface mount TSSOP-20 package with exposed pad for enhanced thermal performance

Product Advantages

High input voltage range accommodates various applications

Versatility with adjustable switching frequency

Optimization for efficiency with synchronous rectification

Thermal reliability with appropriate package design

Built-in protection and control features extend device lifetime and improve system stability

Key Technical Parameters

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

Output Phases: 1

Output Configuration: Positive

Synchronous Rectifier: Yes

Clock Sync: Yes

Control Features: Current Limit, Enable, Frequency Control, Power Good, Soft Start

Quality and Safety Features

Built-in current limiting to protect against overload

Thermal regulation to ensure safe operating temperatures

Robust design for high reliability and long-term performance

Compatibility

Designed for use with high side N-channel MOSFETs in a variety of power conversion applications

Application Areas

Automotive electronics

Industrial power systems

Telecom power supplies

Heavy duty transportation

High voltage battery-operated devices

Product Lifecycle

Currently active with no immediate discontinuation date

Availability of replacements or upgrades should be checked with the manufacturer or distributors

Several Key Reasons to Choose This Product

Ability to manage high input voltages making it versatile for various industrial applications

Adjustable frequency allows for design flexibility and optimization

High efficiency design reduces power loss and thermal stress

Multiple built-in control and safety features ensure system stability and protection

Reliable performance over a wide temperature range meets demands of harsh environments