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MAX42408

更新时间： 2024-12-01 17:00:47
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
19页 979K
描述
36V, 8A/10A Fully Integrated Buck Converter with 10μA Quiescent Current and Dual-Phase Capability

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MAX42408 数据手册

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36V, 8A/10A Fully Integrated Buck Converter  
with 10μA Quiescent Current and Dual-Phase  
Capability  
MAX42408/MAX42410  
General Description  
Benefits and Features  
The MAX42408/MAX42410 are highly-integrated  
synchronous buck converters with internal high-side and  
low-side switches. The ICs deliver up to 8A/10A with  
input voltage from 4.5V to 36V. The voltage quality can  
be monitored by the PGOOD signal. The  
MAX42408/MAX42410 can operate in the dropout mode  
by running at very high duty cycle, which make them  
ideal for industrial applications.  
•
High-Power DC/DC Converter in Small Solution Size  
• Operating V range of 4.5V to 36V  
IN  
• Synchronous DC-DC Converter with Integrated  
FETs  
• 8A/10A Maximum Output Current  
• 400kHz and 1.5MHz Fixed Frequency Options  
• Fixed Soft-Start Time  
- 2.5ms for 400kHz  
The MAX42408/MAX42410 offer programmable output-  
voltage options. High switching frequency at 1.5MHz  
and 400kHz options allow for small external components  
and reduced output ripple. SYNC input programmability  
enables three modes for optimized performance: forced  
PWM mode, skip mode with ultra-low quiescent current,  
and synchronization to an external clock.  
- 3.5ms for 1.5MHz  
• 36ns Minimum On-Time  
• Programmable Output Voltage  
- 0.8V to 10V for 400kHz  
- 0.8V to 6V for 1.5MHz  
• Symmetric and Balanced SUP and PGND Pinout  
Placement for Better EMI Performance  
• Thermally-Enhanced 3.5mm x 3.75mm, 17-Pin  
FC2QFN Package  
The MAX42408/MAX42410 also come with dual-phase  
capability, which allows up to 20A designs. Two ICs can  
be configured as a controller and target with dynamic  
current sharing and 180º out-of-phase operation.  
•
•
High Efficiency at All Load Ranges  
• 20μA Quiescent Current in Skip Mode  
• Up to 95.6% Eff. at 12V /3.3V  
• Up to 93.9% Eff. at 12V /3.3V  
IN  
/400kHz  
/1.5MHz  
IN  
OUT  
OUT  
The MAX42408/MAX42410 are available in a small  
3.5mm x 3.75mm, 17-pin FC2QFN package. They are  
pin-to-pin compatible with the MAX42405/MAX42406  
(5A to 6A) family of products.  
Dual-Phase Operation up to 20A Load Capability  
• Frequency Synchronization Input/Output  
• 180º Out-of-Phase Between Controller and  
Target  
Applications  
• Dynamic Current Sharing  
•
•
•
Point-of-Load  
Industrial Automation  
Distributed DC Power Systems  
•
•
•
•
•
•
Forced PWM and Skip-Mode Operation  
Low Dropout Operation  
Power Good Indicator  
Overtemperature and Short-Circuit Protection  
-40°C to +125°C Temperature Range  
Scalable Power Solution  
• Footprint Compatible with MAX42405/MAX42406  
Ordering Information appears at end of data sheet.  
19-101749; Rev 1; 12/23  
© 2023 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.  
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