Datasheet > LT8551

LT8551

更新时间： 2023-12-20 18:44:10

品牌	Logo	应用领域
亚德诺 - ADI		升压转换器栅极驱动驱动器
页数	文件大小	规格书
32页	2825K
描述
具有内部栅极驱动器的多相升压转换器扩展器

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中文翻译

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数据手册

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LT8551 数据手册

LT8551

Multiphase Boost Converter

Expander with Internal Gate Drivers

DESCRIPTION

FEATURES

The LT^®8551 is a multiphase expander for synchronous

boost DC/DC converters. It operates in tandem with any

Expands Up to 4 Phases per Chip

Up to 80V Input or Output Voltage

Cascade with Multiple Chips for High Current

Applications

Supports Up to 18 Distinct Phases from 20° to 180°

Phases Can Share Phase Angle

Excellent DC and Transient Current Sharing

Phase-Lockable Fixed Frequency 125kHz to 1MHz

Supports Bidirectional Current Flow

synchronous boost DC/DC converter to increase the load

current capability by adding additional phases, which are

clocked out-of-phase to reduce ripple current and filtering

capacitance. It easily adds phases without the need to

route sensitive feedback and control signals.

The LT8551 integrates 5V gate drivers and can support up

to four boost phases per device. Multiple LT8551 devices

can be used for up to 18 phases. It accurately monitors

and adjusts the current of each channel to achieve excel-

lent DC and transient current sharing.

SENSE

or DCR Current Sensing

Eliminates the Need to Route Sensitive Feedback and

Control Signals.

52-Lead (7mm × 8mm) QFN Package

The LT8551 operates over a fixed frequency from 100kHz

to 1MHz or can be synchronized to an external clock.

APPLICATIONS

All registered trademarks and trademarks are the property of their respective owners. Protected

by U.S. patents, including 9077244.

High Current Distributed Power Systems

Telecom, Datacom, and Storage Systems

Industrial and Automotive

TYPICAL APPLICATION

24V/25A Step-Up Expander System

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与LT8551相关器件

型号	品牌	获取价格	描述	数据表
LT8570	Linear	获取价格	Boost/SEPIC/Inverting DC/DC Converter with 65V Switch, Soft-Start and Synchronization
LT8570	ADI	获取价格	具 65V 开关、软起动和同步功能的升压 / SEPIC / 负输出 DC/DC 转换器
LT8570_15	Linear	获取价格	Boost/SEPIC/Inverting DC/DC Converter with 65V Switch, Soft-Start and Synchronization
LT8570-1_15	Linear	获取价格	Boost/SEPIC/Inverting DC/DC Converter with 65V Switch, Soft-Start and Synchronization
LT8580	ETC	获取价格	LT8580 系列产品是一种高效率、低纹波、工作频率高的PFM 升压DC-DC 变换器
LT8580	ADI	获取价格	配备1A、65V开关以及软启动和同步功能的升压/SEPIC/反相DC/DC转换器
LT8580EDD#PBF	Linear	获取价格	LT8580 - Boost/SEPIC/Inverting DC/DC Converter with 1A, 65V Switch, Soft-Start and Synchro
LT8580EDD#TRPBF	Linear	获取价格	LT8580 - Boost/SEPIC/Inverting DC/DC Converter with 1A, 65V Switch, Soft-Start and Synchro
LT8580EMS8E#PBF	Linear	获取价格	LT8580 - Boost/SEPIC/Inverting DC/DC Converter with 1A, 65V Switch, Soft-Start and Synchro
LT8580EMS8E#TRPBF	Linear	获取价格	LT8580 - Boost/SEPIC/Inverting DC/DC Converter with 1A, 65V Switch, Soft-Start and Synchro

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