LTC3890EUH#PBF - Analog Devices Inc.

Manufacturer Part Number

LTC3890EUH#PBF

Manufacturer

Analog Devices

Introduction

High voltage, dual 2-phase synchronous step-down DC/DC controller

Product Features and Performance

Synchronous operation for improved efficiency

Low dropout operation for extended duty cycle range

Selectable frequency from 105kHz to 835kHz

Phase-lockable frequency of 350kHz to 535kHz

Dual output channels with independent phase control

Up to 99% duty cycle for low dropout conditions

Product Advantages

Ability to operate from wide input voltage range (4V to 60V)

PolyPhase operation for less ripple and improved load response

On-chip current limit, soft-start, and power good indicator

Robust thermal performance with -40°C to 125°C operating temperature range

Key Technical Parameters

Output Phases: 2

Voltage - Supply (Vcc/Vdd): 4V ~ 60V

Frequency - Switching: 105kHz ~ 835kHz, 350kHz ~ 535kHz

Duty Cycle (Max): 99%

Control Features: Current Limit, Enable, Frequency Control

Quality and Safety Features

Protection features including over-temperature and over-current limits

Thermal shutdown

Compatibility

Surface mount compatible in a 32-WFQFN Exposed Pad

Configurable for a variety of circuit topologies

Application Areas

Powering FPGAs, ASICs, microprocessors, and other digital ICs

Telecommunications, networking, and industrial applications

Product Lifecycle

Active Product, not nearing discontinuation

Replacement and upgrade options are typically available for active Analog Devices products

Several Key Reasons to Choose This Product

Advanced process technology for power efficiency

High integration for space and cost savings

Flexible design to support numerous applications

Extensive protection features to ensure reliability and longevity

Trusted manufacturer with industry-wide recognition for quality