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MAX17554

更新时间： 2024-11-16 15:18:39
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
21页 1882K
描述
集成60V、50mA、超小型、高效率、同步降压DC-DC转换器

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MAX17554 数据手册

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Click here to ask an associate for production status of specific part numbers.  
MAX17554, MAX17555  
Product Highlights  
Integrated 60V, 50mA, Ultra-Small,  
High Efficiency, Synchronous  
Step-Down DC-DC Converters  
less heat since they are fully synchronous integrated  
FETs DC-DC converters with high efficiency.  
•
Reduces External Components and Total Cost  
• No Schottky–Synchronous Operation  
• Internal Control Loop Compensation  
• Internal Fixed Soft-Start  
•
•
Aftermarket Market Automotive  
Asset tracking application is an example within the  
aftermarket automotive space where the MAX17554  
and MAX17555 would provide a benefit. Typically,  
these units are designed to be as small as possible.  
The MAX17554 and MAX17555 have integrated FETs  
and internal loop compensation in delivering a small  
solution size.  
• Fixed Turn ON/OFF Input Voltage (MAX17554)  
• All-Ceramic Capacitors, Ultra-Compact Layout  
•
Reduces Number of DC-DC Regulators to Stock  
• Wide 4V to 60V Input Voltage (MAX17555)  
• Wide 10V to 60V Input Voltage (MAX17554)  
• Fixed 3.3V (MAX17554A, MAX17555A) and 5V  
(MAX17554B, MAX17555B) Output Voltage  
Options  
General Point of Load  
General point of load applies to a switching regulator  
that serves many applications and design  
environments. Robustness of the power conversion is  
critical to any environment. With an operating range of  
-40°C to +125 °C, current limit protection, overtemperature  
protection, and the ability to adhere to the CISPR32  
class B emission standards, the MAX17554 and  
MAX17555 deliver a small, highly efficient power  
conversion in the most adverse environments.  
• Adjustable Output Range from 0.8V up to 90% of  
V
IN  
(MAX17554C, MAX17555C)  
• Deliver up to 50mA of Load Current  
•
Reduced Power Dissipation  
• Higher Light-Load Efficiency with Discontinuous-  
Conduction Mode (DCM) Operation  
• Power Loss Reduction with External Boot-Strap  
Input (FB/VO) for Internal Circuitry (Fixed Output  
Part Options)  
Simplified Application Diagram  
L1  
V
IN  
V
OUT  
• Fixed 70kHz Switching Frequency  
• 3.8µA Shutdown Current (MAX17555)  
LX  
IN  
C
IN  
C
OUT  
GND  
MAX17554A  
•
•
Flexible Design  
• Programmable EN/UV and HYST Threshold  
(MAX17555)  
• Open-Drain Output (RESET) for Output Status  
Monitoring (MAX17555)  
GND  
GND  
GND  
GND  
FB/VO  
Robust Operation  
• Built-in Hiccup Mode Overload Protection  
• Overtemperature Protection  
• CISPR32 Class B Compliant  
• Wide -40°C to +125°C Ambient Operating  
Temperature, -40°C to +150°C Junction  
Temperature  
Pin Description  
TOP VIEW  
+
+
IN  
LX  
IN  
EN/UV  
HYST  
GND  
LX  
1
2
3
4
8
1
2
3
4
8
7
6
5
MAX17554A  
MAX17554B  
MAX17554C  
MAX17555A  
MAX17555B  
MAX17555C  
GND  
GND  
GND  
GND  
GND  
7
6
5
GND  
RESET  
FB/VO  
Key Applications  
FB/VO  
•
Factory Automation  
Within 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 MAX17554 and MAX17555 generate  
TDFN  
TDFN  
2mm x 2mm  
2mm x 2mm  
Ordering Information appears at end of data sheet.  
19-101535; Rev 1; 5/22  
One Analog Way, Wilmington, MA 01887 U.S.A. | Tel: 781.329.4700 | © 2022 Analog Devices, Inc. All rights reserved.  
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