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TPS54332 参数 Datasheet PDF下载

TPS54332图片预览
型号: TPS54332
PDF下载: 下载PDF文件 查看货源
内容描述: 3.5A , 28V , 1MHz的降压DC / DC转换器,生态modeâ ?? ¢ [3.5A, 28V, 1MHz, STEP DOWN DC/DC CONVERTER WITH Eco-mode™]
分类和应用: 转换器
文件页数/大小: 26 页 / 1105 K
品牌: TI [ TEXAS INSTRUMENTS ]
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TPS54332  
SLVS875B JANUARY 2009REVISED FEBRUARY 2012  
www.ti.com  
TYPICAL CHARACTERISTICS (continued)  
MINIMUM CONTROLLABLE ON  
MINIMUM CONTROLLABLE DUTY  
VOLTAGE REFERENCE  
vs  
TIME  
vs  
RATIO  
vs  
JUNCTION TEMPERATURE  
JUNCTION TEMPERATURE  
JUNCTION TEMPERATURE  
14  
13.5  
13  
0.824  
0.818  
0.812  
0.806  
0.8  
140  
VIN = 12 V  
VIN = 12 V  
VIN = 12 V  
130  
120  
110  
12.5  
12  
11.5  
11  
0.794  
0.788  
10.5  
10  
100  
90  
0.782  
0.776  
9.5  
9
-50  
-25  
0
25  
50  
75  
100  
125  
150  
-50  
-25  
0
25  
50  
75  
100  
125  
150  
-50  
-25  
0
25  
50  
75  
100  
125  
150  
T
- Junction Temperature - °C  
T
- Junction Temperature - °C  
J
J
T
- Junction Temperature - °C  
J
Figure 4.  
Figure 5.  
Figure 6.  
SS CHARGE CURRENT  
vs  
CURRENT LIMIT THRESHOLD  
vs  
JUNCTION TEMPERATURE  
INPUT VOLTAGE  
7
2.1  
T
= 25°C  
J
VIN = 12 V  
6.5  
6
T
= 150°C  
J
2.05  
5.5  
5
T = -40°C  
J
2
4.5  
4
3.5  
3
1.95  
1.9  
-50  
-25  
0
25  
50  
75  
100  
125  
150  
3
8
13  
18  
23  
28  
V - Input Voltage - V  
I
T
- Junction Temperature - °C  
J
Figure 7.  
Figure 8.  
SUPPLEMENTAL APPLICATION CURVES  
TYPICAL MINIMUM OUTPUT VOLTAGE  
TYPICAL MAXIMUM OUTPUT VOLTAGE  
vs  
vs  
INPUT VOLTAGE  
INPUT VOLTAGE  
3.75  
30  
25  
20  
15  
10  
3.25  
2.75  
I
= 3.5 A  
I
= 3.5 A  
O
O
2.25  
1.75  
5
0
1.25  
0.75  
23  
28  
3
8
13  
18  
18  
13  
23  
28  
8
3
V - Input Voltage - V  
I
V - Input Voltage - V  
I
Figure 9.  
Figure 10.  
6
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Copyright © 2009–2012, Texas Instruments Incorporated  
Product Folder Link(s): TPS54332  
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