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MAX25276D

更新时间： 2024-11-19 14:57:27
品牌 Logo 应用领域
亚德诺 - ADI 转换器
页数 文件大小 规格书
20页 718K
描述
具有3.5μA IQ的36V、600mA/1.2A小型降压转换器

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MAX25276D 数据手册

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Click here to ask an associate for production status of specific part numbers.  
MAX20075D/MAX20076D/  
MAX20076E/MAX25276D  
36V, 600mA/1.2A Mini Buck Converter  
with 3.5μA I  
Q
General Description  
Benefits and Features  
The MAX20075D/MAX20076D/MAX25276D are small,  
synchronous buck converters with integrated high-side  
and low-side switches. The MAX20076D/MAX25276D are  
designed to deliver up to 1.2A and the MAX20075D up  
to 0.6A, with 3.5V to 36V input voltages, while using only  
3.5µA quiescent current at no load. The devices provide  
an accurate output voltage of ±2% within the normal op-  
eration input range of 6V to 18V. With 20ns minimum on-  
time capability, the converter is capable of large input-to-  
output conversion ratios. Voltage quality can be monitored  
by observing the PGOOD signal. The devices can operate  
in dropout by running at 99% duty cycle, making them ide-  
al for automotive and industrial applications. The devices  
offer two fixed output voltages of 5V and 3.3V. In addition,  
the devices can be configured for 1V to 10V output volt-  
ages using an external resistor-divider. Frequency is inter-  
nally fixed at 2.1MHz, which allows for small external com-  
ponents and reduced output ripple, and guarantees no AM  
interference. The devices automatically enter skip mode  
at light loads with ultra-low quiescent current of 3.5µA at  
no load. The devices offer pin-enabled spread-spectrum-  
frequency modulation designed to minimize EMI-radiated  
emissions due to the modulation frequency.  
● Synchronous DC-DC Converter with Integrated FETs  
• MAX20075D = 0.6A I  
OUT  
• MAX20076D/MAX25276D = 1.2A I  
OUT  
• 3.5µA Quiescent Current when in Standby Mode  
● 20ns Minimum On-Time Small Solution Size Saves  
Space  
• 2.1MHz Frequency  
• Programmable 1V to 10V Output for the Buck, or  
Fixed 5V/3.3V Options Available  
• Fixed 2.5ms Internal Soft-Start  
• Fixed Output Voltage with ±2% Output Accuracy  
(5V/3.3V), or Externally Resistor Adjustable (1V to  
10V) with ±1.5% FB Accuracy  
• Innovative Current-Mode-Control Architecture  
Minimizes Total Board Space and BOM Count  
● PGOOD Output and High-Voltage EN Input Simplify  
Power Sequencing  
● Protection Features and Operating Range Ideal for  
Automotive Applications  
• 3.5V to 36V Operating V Range  
IN  
• 40V Load-Dump Protection  
• 99% Duty-Cycle Operation with Low Dropout  
• -40°C to +125°C Automotive Temperature Range  
• AEC-Q100 Qualified  
The MAX20075D/MAX20076D/MAX25276D are available  
in small (3mm x 3mm) 12-pin TDFN and side-wettable  
TDFN packages with an exposed pad, and use very few  
external components.  
Applications  
● Automotive  
● Industrial  
● High-Voltage DC-DC Converters  
19-100603; Rev 10; 1/23  
Ordering Information appears at end of data sheet.  
© 2023 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.  
One Analog Way, Wilmington, MA 01887 U.S.A. | Tel: 781.329.4700 | © 2023 Analog Devices, Inc. All rights reserved.  
 
 
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