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MAX17570

更新时间： 2024-11-16 15:19:39
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
29页 3068K
描述
4.5V至60V、300mA、超小型、高效率同步降压DC-DC转换器

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MAX17570 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, 300mA, Ultra Small, High-  
MAX17570  
Efficiency Synchronous Step-Down DC-DC  
Converters  
monitors has become easier. Typically, these units are  
designed to be as small as possible. The MAX17570 has  
integrated FETs, integrated compensation, and can  
even have pre-programmed output voltages, all  
delivering a small solution size. Small size and fewer  
components help drive overall design cost down for the  
system.  
Product Highlights  
•
Reduces External Components and Total Cost  
• No Schottky—Synchronous Operation  
• Internal Compensation  
• Internal Soft-Start  
• All-Ceramic Capacitors, Ultra-Compact Layout  
•
Flexibility to Support Multiple Rails in a System  
• Wide 4.5V to 60V Input Voltage Range  
• Fixed 3.3V and 5V Output Options  
•
General Point of Load  
General point of load is just that, a generic term. It  
applies to a switching regulator that serves many  
applications and design environments. Critical to any  
environment is the robustness of the power conversion.  
With an operating range of -40°C to +125°C, current limit  
protection, overtemperature protection, and the ability to  
adhere to the CISPR-32 class B emission standards, the  
MAX17570 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.  
• Adjustable Output from 0.9V to 97% of V  
IN  
• Delivers Up to 300mA Load Current  
• 200kHz to 1MHz Adjustable Switching Frequency  
with External Clock Synchronization  
•
•
Reduces Power Dissipation  
• 95.8% Peak Efficiency for V = 15V,  
IN  
V
= 12V, I  
= 150mA  
OUT  
OUT  
• Shutdown Current = 2.2μA (typ)  
• PFM Options for Superior Light Load Efficiency  
Operates Reliably in Adverse Industrial Environme-  
nts  
Simplified Application Diagram  
L1  
V
OUT  
• Hiccup-Mode Current Limit and Autoretry Startup  
• Open-Drain Power Good Output (RESET Pin)  
• Programmable EN/UVLO Threshold  
• Monotonic Startup into Prebiased Output  
• Overtemperature Protection  
V
IN  
LX  
V
IN  
C
IN  
C
OUT  
EN/UVLO  
GND  
MAX17570  
V
CC  
V
/FB  
OUT  
• High Industrial -40°C to +125°C Ambient Operat-  
ing Temperature Range/-40°C to +150°C Juncti-  
on Temperature Range  
C
VCC  
RT/SYNC  
RESET  
• Complies with CISPR32 (EN55032) Class B  
Conducted and Radiated Emissions  
Key Applications  
Pin Description  
•
Factory Automation  
Within the factory automation space, which includes  
many different applications, one key need is the ability  
to generate less heat. Heat within the system must be  
managed, prevent overheating and shutdown. The  
MAX17570 produces less heat as it is a fully synchrono-  
us DC-DC with integrated FETs with high efficiency. The  
more efficient a switching regulator is, the less it loses  
the power and therefore create less heat in the system.  
TOP VIEW  
+
V
1
IN  
8
7
6
5
LX  
GND  
EN/UVLO  
2
3
4
MAX17570  
V
CC  
RESET  
RT/SYNC  
V
/FB  
OUT  
•
Aftermarket Automotive  
8-pin 2mm x 2mm  
TDFN Package  
An example of within the aftermarket automotive space  
where the MAX17570 provides a benefit is asset  
tracking application. Asset tracking has increased in  
popularity as the ability to wireless connect to these  
Ordering Information appears at end of data sheet.  
19-101698; Rev 1; 7/23  
© 2023 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.  
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