Datasheet > MAX25254

MAX25254

更新时间： 2023-12-20 18:45:23

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
24页	2010K
描述
具有多相能力和ASIL B安全等级的双路36V输入电压、8A同步降压转换器

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中文翻译

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数据手册

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MAX25254 数据手册

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Dual 36V Input Voltage, 8A Synchronous

MAX25254/MAX25255

Buck Converters with Multiphase Capability

and ASIL B Safety Level

General Description

Benefits and Features

The MAX25254/MAX25255 are small, synchronous dual

buck converters with integrated high-side and low-side

Dual Buck Converter

•

Wide Input Range from 3.0V to 36V (42V, max)

Low Shutdown Supply Current (6.5µA, max)

Low Operating Quiescent Current with One

Channel ON (12µA, typ)

switches. The ICs are designed to deliver up to 8A per

channel with input voltages from 3V to 36V while using

only 12μA quiescent current at no load. Voltage quality

can be monitored by observing the PGOOD signals. The

MAX25254/MAX25255 can regulate the output voltage

in the dropout region by running at 99% of the duty cycle,

making them ideal for automotive and industrial

applications.

•

Programmable V

from 0.8V to 14V

OUT

Up to 8A per Channel

180° Out-of-Phase Operation between Two

Converters

•

24ns (typ) Minimum On-Time

The MAX25254/MAX25255 offer two fixed output

voltages of 5V and 3.3V. Four fixed frequency options

allow for small external components and reduced output

ripple, and also guarantee no AM interference. The

MAX25254/MAX25255 can enter skip mode at light

loads with ultra-low quiescent current of 12μA at no load.

The MAX25254/MAX25255 can be ordered with spread

spectrum enabled for optimum EMI performance.

Dual/Quad-Phase Operation

•

Ability to Operate Two ICs in Parallel for Quad-Phase

Operation

•

±10% Current Sharing Accuracy

Supports up to 16A in Dual-Phase and 32A in Quad-

Phase

Two buck converters within the MAX25254D and

MAX25255D can be configured for dual-phase operation

with up to 16A output load capability. Furthermore, the

MAX25254D/MAX25255D and the MAX25254Q/

MAX25255Q can be used in parallel to provide quad-

phase operation that supports up to 32A (max) output

current.

Diagnostics and Redundant Circuits (MAX25255)

•

ASIL B Compliant

Redundant Reference

Die Temperature Monitor

Precision Overvoltage and Undervoltage Protection

General

The MAX25254/MAX25255 are available in a small,

4.50mm x 5.75mm, 23-pin FC2QFN package and use

very few external components.

•

23-Pin, 4.50mm x 5.75mm FC2QFN Package

-40°C to +125°C Operating Ambient Temperature

AEC-Q100 Rating

200kHz, 400kHz, 1MHz, or 2MHz Switching

Frequency Options

Spread Spectrum

Applications

•

Front-End Power Supply for Head Units

ASIL Applications

General-Purpose Dual Buck Converters

Telematics Modules

•

Front Camera Power

Ordering Information appears at end of data sheet.

19-101441; Rev 7; 9/23

12 3 4 5 6 7...24

中文翻译

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与MAX25254相关器件

型号	品牌	获取价格	描述	数据表
MAX25255	ADI	获取价格	具有多相能力和ASIL B安全等级的双路36V输入电压、8A同步降压转换器
MAX25256	ADI	获取价格	用于隔离电源的汽车级36V H桥变压器驱动器
MAX25262	ADI	获取价格	汽车级65V、2A/3A微型降压转换器
MAX25263	ADI	获取价格	汽车级65V、2A/3A微型降压转换器
MAX25276	MAXIM	获取价格	36V, 600mA/1.2A Mini Buck Converter
MAX25276	ADI	获取价格	36V、600mA/1.2A、微型Buck转换器，3.5μA IQ
MAX25276ATCA	MAXIM	获取价格	36V, 600mA/1.2A Mini Buck Converter
MAX25276ATCA/VY+	MAXIM	获取价格	Switching Regulator,
MAX25276D	ADI	获取价格	具有3.5μA IQ的36V、600mA/1.2A小型降压转换器
MAX25277	ADI	获取价格	36V、2.5A、微型Buck转换器，3.5uA IQ

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