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MAX17624

更新时间： 2024-09-25 14:58:23
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
19页 2260K
描述
2.9V to 5.5V,1A, Synchronous Step-Down Converter with Integrated MOSFETs

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中文翻译

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MAX17624 数据手册

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Click here for production status of specific part numbers.  
MAX17623  
MAX17624  
2.9V to 5.5V,1A, Synchronous Step-Down  
Converter with Integrated MOSFETs  
General Description  
Benefits and Features  
The Himalaya series of voltage regulator ICs, power  
modules, and chargers enable cooler, smaller, and  
simpler power supply solutions.ꢀ MAX17623 and  
MAX17624 are high-frequency synchronous Himalaya  
step-down DC-DC converters with integrated MOSFETs  
and internal compensation. MAX17623 and MAX17624  
have an input-voltage range of 2.9V to 5.5V, supports up  
to 1A, and output voltage can be adjusted from 0.8V to  
3.3V.  
● Easy to Use  
•
•
•
•
•
•
•
•
2.9V to 5.5V Input  
Adjustable 0.8V to 3.3V Output  
±1% Feedback Accuracy  
Up to 1A Output Current  
Fixed 2MHz or 4MHz Operation  
100% Duty-Cycle Operation  
Internally Compensated  
All Ceramic Capacitors  
The MAX17623 and MAX17624 employ peak-current-  
mode control architecture under steady-state operation.ꢀ  
To reduce input-inrush current, the devices offer a fixed  
1ms soft-start time. Both devices feature selectable  
PWM for fixed frequency operation, or PFMꢀmode for  
better efficiency at light loads.ꢀWhen PWM mode is  
selected, MAX17623 operates at a fixed 2MHz switching  
frequency and MAX17624 operates at a fixed 4MHz  
switching frequency. MAX17623 offers output voltages  
from 0.8V to 1.5V, and MAX17624 offers output voltages  
from 1.5V to 3.3V.  
● High Efficiency  
•
•
Selectable PWM- or PFM-Mode of Operation  
Shutdown Current as Low as 0.1μA (typ)  
● Flexible Design  
•
•
Internal Soft-Start and Prebias Startup  
Open-Drain Power Good Output (PGOOD Pin)  
● Robust Operation  
•
•
•
Overtemperature Protection  
Overcurrent Protection  
-40°C to +125°C Ambient Operating  
Temperature/ -40°C to +150°C Junction  
Temperature  
The MAX17623 and MAX17624 devices are available in  
a compact 8-pin, 2mm × 2mm TDFN package.  
Applications  
•
•
•
•
•
Point-of-Load Power Supply  
Standard 5V Rail Supplies  
Battery-Powered Applications  
Distributed Power Systems  
Ordering Information at end of data sheet.  
Industrial Sensors and Process Control  
Typical Application Circuit  
L1  
1µH  
3.6V TO 5.5V  
3.3V, 1A  
MAX17624  
LX  
V
IN  
IN  
C
10µF  
C
2.2µF  
OUT  
IN  
R1  
118kΩ  
OUTSNS  
EN  
PGOOD  
FB  
R2  
37.4kΩ  
MODE  
GND  
19-100976; Rev 0; 10/20  
1234567...19

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