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NB675 参数 Datasheet PDF下载

NB675图片预览
型号: NB675
PDF下载: 下载PDF文件 查看货源
内容描述: 24V高电流同步降压转换器1.5A LDO和磨光参考 [24V, High Current Synchronous Buck Converter With 1.5A LDO and Buffed Reference]
分类和应用: 转换器
文件页数/大小: 21 页 / 617 K
品牌: MPS [ MONOLITHIC POWER SYSTEMS ]
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NB675 –24V, HIGH CURRENT SYNCHRONOUS BUCK CONVERTER  
ELECTRICAL CHARACTERISTICS (continued)  
VIN = 12V, TJ = 25°C, unless otherwise noted.  
Parameters  
Symbol  
Condition  
Min  
Typ  
Max  
Units  
VCC Regulator  
VCC Regulator  
VCC  
4.8  
5.1  
5
5.3  
V
VCC Load Regulation  
Icc=8mA  
%
Power Good  
FB Rising (Good)  
FB Falling (Fault)  
FB Rising (Fault)  
FB Falling (Good)  
PGVth-Hi  
PGVth-Lo  
PGVth-Hi  
PGVth-Lo  
95  
85  
%VREF  
115  
105  
450  
Power Good Low to High Delay  
PGTd  
VPG  
μs  
V
Power Good Sink Current  
Capability  
Sink 4mA  
0.4  
1
Power Good Leakage Current  
VTTREF Output  
IPG_LEAK  
VPG = 3.3V  
μA  
VTTREF Output Voltage  
VTTREF  
VDDQSEN/2  
50%  
IVTTREF<0.1mA,  
1V<VDDQ<1.4V  
48.2%  
51.8%  
52%  
Output Voltage tolerance to  
VDDQ  
IVTTREF<10mA,  
1V<VDDQ<1.4V  
48%  
10  
50%  
15  
Current Limit  
VTT LDO  
ILIMIT_VTTREF  
mA  
VTT Output Voltage  
VTT  
VTTREF  
-10mA<IVTT<10mA,  
1V<VDDQ<1.4V  
-20  
-45  
20  
45  
mV  
mV  
VTT tolerance to VTTREF  
-1A<IVTT<1A,  
1V<VDDQ<1.4V  
Source Current Limit  
Sink Current Limit  
ILIMIT_SOUCE  
ILIMIT_SINK  
1.8  
1.6  
A
A
Thermal Protection  
Thermal Shutdown(6)  
TSD  
150  
25  
°C  
°C  
Thermal Shutdown Hysteresis  
Note:  
6) Guaranteed by design.  
NB675 Rev. 1.0  
1/14/2013  
www.MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2013 MPS. All Rights Reserved.  
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