Datasheet > MAX20098

MAX20098

更新时间： 2023-12-20 18:45:33

品牌	Logo	应用领域
亚德诺 - ADI		控制器
页数	文件大小	规格书
28页	847K
描述
通用36V 2.2MHz Buck控制器，具有3.5μA IQ

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MAX20098 数据手册

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MAX20098

Versatile Automotive 36V 2.2MHz Buck

Controller with 3.5μA I

General Description

Benefits and Features

The MAX20098 is an automotive 2.2MHz synchronous

step-down controller IC with 3.5µA IQ. This IC operates

with an input-voltage supply from 3.5V to 42V and can op-

erate in dropout condition by running at 99% (typ) duty cy-

cle. It is intended for applications with mid- to high- pow-

er requirements that operate at a wide input voltage range

such as during automotive cold-crank or engine stop-start

conditions.

● Meets Stringent Automotive OEM Module Power

Consumption and Performance Specifications

• 3.5µA Quiescent Current in Skip Mode at V

3.3V

OUT

• Fixed 5.0V/3.3V or Adjustable 1V to 10V Output

• ±1.1% Output-Voltage Accuracy for 5V Fixed

Setting

● Enables Crank-Ready Designs

The step-down controller operates at up to 2.2MHz fre-

quency to allow small external components, reduced out-

put ripple, and to guarantee no AM band interference.

The switching frequency is resistor adjustable (220kHz

to 2.2MHz). FSYNC input programmability enables three

frequency modes for optimized performance: forced fixed-

frequency operation, skip mode with ultra-low quiescent

current, and synchronization to an external clock. The IC

also provides a SYNC output to enable two controllers to

operate in parallel. The IC has a factory-programmable

spread-spectrum option for frequency modulation to mini-

mize EMI interference.

• Wide Input Supply Range from 3.5V to 42V

● EMI Reduction Features Reduce Interference with

Sensitive Radio Bands without Sacrificing Wide Input

Voltage Range

• 50ns (typ) Minimum On-Time Allows

• Skip-Free Operation for 3.3V Output from Car

Battery at 2.2MHz

• Spread-Spectrum Option

• Frequency-Synchronization Input

• Resistor-Programmable Frequency Between

220kHz and 2.2MHz

● Integration and Thermally Enhanced Packages Save

Board Space and Cost

The PGOOD output indicates when the voltage is within

regulation range. Protection features include cycle-by- cy-

cle current limit and thermal shutdown. The MAX20098 is

specified for operation over the -40°C to +125°C auto- mo-

tive temperature range.

• 2MHz Step-Down Controller

• Current-Mode Controller with Forced-Continuous

and Skip Modes

• 16-Pin Side-Wettable (SW) TQFN-EP Package

• 20A Reference Design Available

Applications

● Infotainment Systems

● USB Hub

● General-Purpose Point-of-Load (POL)

● Protection Features Improve System Reliability

• Supply Undervoltage Lockout

• Overtemperature and Short-Circuit Protection

• Output Overvoltage and Undervoltage Monitoring

• -40°C to +125°C Grade 1 Automotive Temperature

Range

• AEC-Q100 Qualified

19-100089; Rev 16; 10/21

Ordering Information appears at end of data sheet.

12 3 4 5 6 7...28

中文翻译

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