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EVNB679-D-00A

更新时间： 2024-11-06 01:20:59
品牌 Logo 应用领域
芯源 - MPS /
页数 文件大小 规格书
5页 249K
描述
26V, Low Iq, High Current, Fixed 5.5V-8A Synchronous Buck Converter with 100mA LDO

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EVNB679-D-00A 数据手册

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EVNB679  
26V, Low Iq, High Current, Fixed 5.5V-8A  
Synchronous Buck Converter  
with 100mA LDO  
The Future of Analog IC Technology  
PRELIMINARY SPECIFICATIONS SUBJECT TO CHANGE  
DESCRIPTION  
FEATURES  
The NB679 is a fully integrated high frequency  
synchronous rectified step-down switch mode  
converter with fixed 5V Vout. It offers very  
compact solution to achieve 8A continuous  
output current and 10A peak output current over  
a wide input supply range with excellent load  
and line regulation.  
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Wide 5.5V to 26V Operating Input Range  
Fixed 5V Vout, Support 5.5V-5V  
Ultrasonic Mode  
100μA low quiescent Current  
8A Continous Output Current  
10A Peak Output Current  
Adaptive COT for Fast transient  
DC Auto Tune Loop  
Stable with POSCAP and Ceramic Output  
Built-in 5V, 100mA LDO with Switch Over  
1% Reference Voltage  
Internal Soft Start  
Output Discharge  
700kHZ Switching Frequency  
OCP, OVP, UVP(metal Hiccup) Protection  
and Thermal Shutdown.  
The NB679 operates at high efficiency over a  
wide output current load rang based on MPS  
proprietary switching loss reduction tech and  
internal Low Ron Power MOSFETs  
Adaptive Constant-On-Time (COT) control  
mode provides fast transient response and  
eases loop stabilization. The DC auto tune loop  
provides good load and line regulation.  
NB679 also provide fixed 5V LDO which can be  
used to power the external peripheries.  
•
Latch off reset via EN or Power cycle.  
APPLICATIONS  
Full protection features include OC Limit, OVP,  
UVP and thermal shut down. The converter  
•
•
•
•
Notebook Systems and Tablet PC  
Networking Systems and Server  
Personal Video Recorders  
requires  
minimum  
number  
of  
external  
components and is available in QFN 2x3  
packages.  
Distributed Power Systems  
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green  
status, please visit MPS website under Products, Quality Assurance page.  
“MPS” and “The Future of Analog IC Technology” are registered trademarks of  
Monolithic Power Systems, Inc.  
EVNB679-D-00A EVALUATION BOARD  
100  
90  
V
=5.5V  
IN  
80  
70  
60  
V
=8.4V  
IN  
V
=12V  
IN  
(L x W ) 635mm x 635mm  
V
=19V  
IN  
Board Number  
MPS IC Number  
0.001  
0.01  
0.1  
1
10  
EVNB679-D-00A  
NB679  
OUTPUT CURRENT(A)  
EVNB679 Rev. 1.0  
11/14/2014  
Preliminary Specifications Subject to Change  
www.MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2014 MPS. All Rights Reserved.  
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