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MAX17573

更新时间： 2023-12-20 18:44:26
品牌 Logo 应用领域
亚德诺 - ADI DC-DC转换器
页数 文件大小 规格书
22页 1803K
描述
具有内部补偿的4.5V至60V、3.5A、高效、同步降压DC-DC转换器

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中文翻译

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MAX17573 数据手册

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Click here to ask an associate for production status of specific part numbers.  
4.5V to 60V, 3.5A, High-Efficiency,  
MAX17573  
Synchronous Step-Down DC-DC Converter  
with Internal Compensation  
to withstand load dump voltage perturbations. The  
MAX17573 has integrated FETS, integrated  
compensation, and can support up to 60V on the  
input pin, making the solution robust and reliable.  
Product Highlights  
•
Reduces External Components and Total Cost  
• No Schottky-Synchronous Operation  
• Internal Loop Compensation  
•
General Point of Load  
• All-Ceramic Capacitors, Compact Layout  
General point of load applies to a switching regulator  
that serves many applications and design  
environments. The robustness of the power  
conversion is critical to any environment. With a wide  
-40°C to +125°C Ambient Operating Temperature  
Range/-40°C to +150°C Junction Temperature  
Range, current limit protection, and overtemperature  
protection, the MAX17573 delivers a small, highly  
efficient power conversion in the most adverse  
environments and provides the designer the peace  
of mind that it is robust and reliable.  
•
Reduces Number of DC-DC Regulators to Stock  
• Wide 4.5V to 60V Input  
• Adjustable Output Voltage Range from 0.9V up to  
90% of VIN  
• 100kHz to 2.2MHz Adjustable Frequency with  
External Clock Synchronization  
•
Reduces Power Dissipation  
• Peak Efficiency of 95.4% at VIN = 12V, VOUT  
5V at 500kHz Switching Frequency  
=
• Pin-to-Pin Compatible with MAX17574, and  
Improved Efficiency through Superior Switching  
Performance compared to MAX17574  
• PFM and DCM Modes Enable Enhanced Light-  
Load Efficiency  
Simplified Application Diagram  
V
IN  
• Auxiliary Bootstrap Supply (EXTVCC) for  
Improved Efficiency  
• 2.8μA Shutdown Current  
EN/UVLO  
MODE/SYNC  
IN  
RT  
BST  
LX  
V
OUT  
V
CC  
MAX17573  
•
Operates  
Reliably  
in  
Adverse  
Industrial  
EXTVCC  
CF  
SGND  
Environments  
• Built-in Hiccup Mode Overload Protection  
• Built-In Output-Voltage Monitoring with RESET  
• Programmable EN/UVLO Threshold  
• Adjustable and Monotonic Startup with Prebiased  
Output Voltage  
FB  
SS  
RESET  
PGND  
• Overtemperature Protection  
Pin Description  
TOP VIEW  
Key Applications  
24  
23  
22  
21  
20  
•
Factory Automation  
+
LX  
PGND  
PGND  
NC  
1
2
3
4
5
6
7
19 RT  
Within the many different applications in the Factory  
Automation space, one key need is the ability to  
generate less heat. Heat within the system has to be  
managed to prevent overheating and shutdown. The  
MAX17573 produces less heat since it is a fully  
synchronous integrated FETs DC-DC converter with  
high efficiency.  
18 FB  
17 CF  
MAX17573  
16 SS  
IN  
15 MODE/SYNC  
14 RESET  
13 NC  
IN  
IN  
EP  
8
9
10  
11  
12  
•
Aftermarket Automotive  
The mobile PLC market is example within the  
aftermarket automotive space where the MAX17573  
would provide a benefit. Typically, these units are  
designed to be as small as possible and must be able  
24L TQFN-EP  
(4mm × 5mm)  
Ordering Information appears at end of data sheet.  
19-101491; Rev 0; 4/22  
One Analog Way, Wilmington, MA 01887 U.S.A. | Tel: 781.329.4700 | © 2022 Analog Devices, Inc. All rights reserved.  
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