Datasheet > MAX20474

MAX20474

更新时间： 2023-12-20 18:45:30

品牌	Logo	应用领域
亚德诺 - ADI		升压转换器
页数	文件大小	规格书
21页	2028K
描述
3.0V至5.5V输入、6V至18V输出、同步升压转换器

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中文翻译

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数据手册

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MAX20474 数据手册

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3.0V to 5.5V Input, 6V to 18V Output,

Synchronous Boost Converter

MAX20474

General Description

Benefits and Features

The MAX20474 is a high-efficiency DC-DC converter that

boosts 3.0V to 5.5V input supply from 6V to 18V at up to

1A load. The boost converter achieves ±1.5% output error

over load, line, and temperature range.

● Synchronous Boost Converter for Small Solution Size

• 4.0A Peak Input Current

• Resistor-Adjustable Output Voltage from 6V to 18V

• 6V to 18V Fixed Output Selection in 0.25V Steps

• 3.0V to 5.5V Operating Supply Voltage

• 2.2MHz Operation

• RESET Output

• Spread Spectrum

The device features a 2.2MHz fixed-frequency PWM

mode for better noise immunity and load-transient re-

sponse, as well as a pulse-frequency modulation mode

(skip) for increased efficiency during light-load operation.

The 2.2MHz frequency operation allows for the use of all

ceramic capacitors and minimizes external components.

The programmable spread-spectrum frequency modula-

tion minimizes radiated electromagnetic emissions. Inte-

● High Precision

• ±1.5% Output Voltage Accuracy, Fixed

• ±2.2% Output Voltage Accuracy, Adj

• 81 ± 3% UV Monitoring

grated low R

switches improve efficiency at heavy

• 121 ± 3% OV Monitoring

DSON

loads and make planning the layout a much simpler task

with respect to discrete solutions.

• Good Load-Transient Performance

● Robust for the Automotive Environment

• Current-Mode, Forced-PWM, and SKIP Operation

• Overtemperature and Short-Circuit Protection

• 3mm x 3.5mm, 14-Pin TDFN

Other features include True Shutdown™, soft-start, over-

current, and overtemperature protections.

• -40°C to +125°C Automotive Temperature Range

Applications

● Automotive Point of Load

Simplified Block Diagram

INPUT

OUTPUT

OUT

BIAS

REG

BIAS LDO

REG LDO

OUTPUT

DRIVER

OUTS

PGND

INPUT

MAIN

CONTROL

TO INTERNAL

CIRCUITRY

GND

MAX20474

SYNC

OSC

SSEN

10kΩ

CONTROL

LOGIC

RESET

True Shutdown is a trademark of Maxim Integrated Products, Inc.

19-101170; Rev 2; 2/23

Ordering Information appears at end of data sheet.

12 3 4 5 6 7...21

中文翻译

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与MAX20474相关器件

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MAX2047ETJ	MAXIM	获取价格	暂无描述
MAX2047ETJ+	MAXIM	获取价格	Baseband Circuit, 5 X 5 MM, 0.80 MM HEIGHT, TQFN-32
MAX2047ETJ+T	MAXIM	获取价格	Baseband Circuit, 5 X 5 MM, 0.80 MM HEIGHT, TQFN-32
MAX2047ETJ-T	MAXIM	获取价格	High-Gain Vector Multipliers
MAX2047EVKIT	MAXIM	获取价格	Fully Assembled and Tested
MAX20481	ADI	获取价格	四到七路输入汽车电源系统监视器系列
MAX20484	ADI	获取价格	带有时钟监视器和看门狗的三到五路输入电源系统监视器
MAX20499	ADI	获取价格	汽车核心供电电源5V、8A/12A降压型转换器
MAX20499C	ADI	获取价格	车用单个16A/12A降压转换器

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