Datasheet > MAX25240

MAX25240

更新时间： 2024-10-29 14:57:35

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
24页	1445K
描述
适合汽车应用的2V至36V、6A降压-升压转换器

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中文翻译

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MAX25240 数据手册

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Automotive 2V to 36V, 6A Buck-Boost

Converters

MAX25239/MAX25240

General Description

Benefits and Features

The MAX25239/MAX25240 are small, synchronous, buck-

boost converters with integrated H-bridge switches. These

ICs provide a fixed-output regulation voltage and an ex-

ternally adjustable output voltage in the 3V to 20V range

with an input voltage above, below, or equal to the output

regulation voltage. The IC has typical 8.2A and 10A input

current limit options and can support continuous load cur-

rents up to 6A depending on the input-to-output voltage

ratio and operating frequency. It also has a wide input volt-

age range of 2V to 36V.

● Meets Stringent Automotive Quality and Reliability

Requirements

• 2V to 36V Operating Input Voltage Range Allows

Operation in Cold-Crank Conditions

• Tolerates Input Transients up to 42V

• EN Pin Compatible up to 42V

• 8.2A/10A Typical Input Current Limit

• Fixed and Adjustable Output Voltage Options

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

Range

The MAX25239/MAX25240 have three switching frequen-

cy options: 2.1MHz, 400kHz, and 200kHz. The 2.1MHz

high switching frequency allows small external compo-

nents and reduced output ripple, and guarantees no AM

band interference, while the 400kHz or 200kHz switching

frequency offers better efficiency and relieves the power

consumption concern. The SYNC input allows three oper-

ation modes: skip mode with ultra-low quiescent current,

forced fixed-frequency PWM operation, and synchroniza-

tion to an external clock. The IC also includes spread-

spectrum frequency modulation to minimize EMI interfer-

ence.

● AEC-Q100 Qualified High Integration and Thermally

Enhanced Package Reduces BOM Cost and Board

Space

• Integrated FETs H-Bridge Architecture

• 2.1MHz/400kHz/200kHz Switching Frequency

Options

• Phase-Locked Loop (PLL) Frequency

Synchronization

• Thermally Enhanced, 22-Pin FC2QFN Package

● Low Quiescent Current Meets Stringent OEM Current

Requirements

• 95μA Quiescent Current in Standby Mode

• 10μA Maximum Shutdown Current

The MAX25239/MAX25240 feature a power-OK (POK) in-

dicator, undervoltage lockout, overvoltage protection, cy-

cle-by-cycle current limit, and thermal shutdown. The ICs

are available in a small, 4.25mm x 4.25mm x 0.75mm,

22-pin FC2QFN package.

● Reduced EMI Emissions at Switching Frequency

• Spread-Spectrum Function Enabled/Disabled by

SPS Pin

● Protection Features Improve System Reliability

• Supply Undervoltage Lockout and Thermal

Protection

Applications

● ADAS ECU

• Output PGOOD Indicator, Overvoltage, and Short-

Circuit Protection

● Infotainment Systems

● Body Electronics

● Start-Stop Systems

● Point-of-Load Power Supplies

19-101236; Rev 10; 6/23

Ordering Information appears at end of data sheet.

12 3 4 5 6 7...24

中文翻译

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