LTC3851EUD-1#TRPBF - Analog Devices Inc.

Manufacturer Part Number

LTC3851EUD-1#TRPBF

Manufacturer

Analog Devices, Inc.

Introduction

Highly Integrated, Constant Frequency, Current Mode Step-Down DC/DC Controller

Product Features and Performance

Wide 4V to 38V input voltage range

Up to 750kHz switching frequency for reduced external component size

Accurate current-mode control with internal slope compensation

Programmable switching frequency from 250kHz to 750kHz

Programmable soft-start and tracking

Adjustable output voltage down to 0.8V

Analog power good output

Enable/shutdown control

Integrated bootstrap diode

Undervoltage lockout, cycle-by-cycle current limit, and thermal shutdown protection

Product Advantages

Wide input voltage range

High switching frequency for smaller external components

Accurate current-mode control

Flexible programming of switching frequency, soft-start, and tracking

Adjustable output voltage down to 0.8V

Analog power good output and enable/shutdown control

Comprehensive protection features

Key Technical Parameters

Input voltage range: 4V to 38V

Output voltage range: 0.8V to 38V

Switching frequency: 250kHz to 750kHz

Output current capability: Dependent on external components

Efficiency: Up to 95% efficient

Quality and Safety Features

RoHS3 compliant

Thermal shutdown protection

Undervoltage lockout

Cycle-by-cycle current limit

Compatibility

Can be used in a wide range of DC-DC converter applications

Application Areas

Industrial and consumer electronic devices

Telecommunications equipment

Automotive electronics

Portable and battery-powered systems

Product Lifecycle

This product is currently in production and is not nearing discontinuation.

Replacements or upgrades may be available in the future as Analog Devices continues to develop new power management solutions.

Key Reasons to Choose This Product

Wide input voltage range for versatile applications

High switching frequency for smaller external components

Accurate current-mode control for precise regulation

Flexible programming options for customized performance

Adjustable output voltage down to 0.8V

Comprehensive protection features for reliability

RoHS3 compliance for environmentally-friendly designs