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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  
TYPICAL PERFORMANCE CHARACTERISTICS  
VIN =20V, VDDQ =1.35V, L=1.2µH, TJ=+25°C, unless otherwise noted.  
Load Regulation  
95  
85  
2
3500  
3000  
V
=6V  
1.5  
IN  
1
75  
65  
55  
45  
V
=8.4V  
IN  
2500  
2000  
V
=19V  
IN  
0.5  
0
V
=12.6V  
IN  
V
=19V  
IN  
V
=12.6V  
IN  
1500  
1000  
-0.5  
-1  
V
=12.6V  
IN  
V
=8.4V  
IN  
V
=19V  
35  
25  
15  
V
=8.4V  
IN  
IN  
V
=6V  
4
IN  
500  
0
V
=6V  
-1.5  
-2  
IN  
0.001 0.01  
0.1  
1
10  
0
1
2
3
4
5
6
7
8
9 10  
0
1
2
3
5
6
7
8
9 10  
LOAD CURRENT (A)  
LOAD CURRENT (A)  
LOAD CURRENT (A)  
I_v_limit vs. Temperature  
Switching Frequency  
vs. Temperature  
Switching Frequency  
vs. Output Current  
I
=5A  
I
=10A  
OUT  
OUT  
600  
500  
13  
12.8  
12.6  
12.4  
12.2  
12  
520  
518  
516  
514  
512  
510  
508  
506  
504  
502  
500  
400  
300  
200  
100  
0
11.8  
11.6  
11.4  
11.2  
11  
-40  
10  
60  
110  
-50  
0
50  
100  
150  
0
2
4
6
8
10  
OUTPUT CURRENT (A)  
V
LDO Sink Current  
VTT LDO Source Current  
Load Regulation  
TT  
Load Regulation  
V
DDQ  
=1.35V, V =V  
TT DDQ  
/2  
V
=1.35V, V =V /2  
TT DDQ  
DDQ  
0.725  
0.715  
0.705  
0.695  
0.685  
0.675  
0.665  
0.655  
0.645  
0.635  
0.625  
0.725  
0.715  
0.705  
0.695  
0.685  
0.675  
0.665  
0.655  
0.645  
0.635  
0.625  
V
TTREF  
V
TTREF  
V
TT  
V
TT  
0
500  
1000  
1500  
0
500  
1000  
1500  
V
SINK CURRENT (mA)  
V
TT  
SOURCE CURRENT (mA)  
TT  
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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