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78ST205 参数 Datasheet PDF下载

78ST205图片预览
型号: 78ST205
PDF下载: 下载PDF文件 查看货源
内容描述: 5Vout 2A宽输入正降压型ISR [5Vout 2A Wide Input Positive Step-Down ISR ]
分类和应用:
文件页数/大小: 3 页 / 201 K
品牌: TI [ TEXAS INSTRUMENTS ]
 浏览型号78ST205的Datasheet PDF文件第1页浏览型号78ST205的Datasheet PDF文件第3页  
For assistance or to order, call (800) 531-5782  
7 8 S T 2 0 0 S e r i e s  
C H A R A C T E R I S T I C  
D A T A  
78ST233_ 3.3 VDC  
78ST205_ 5.0 VDC  
(See Note 1)  
(See Note 1)  
Efficiency vs Output Current  
Efficiency vs Output Current  
100  
100  
90  
80  
70  
60  
50  
40  
90  
Vin  
7.0V  
Vin  
7.5V  
9.0V  
80  
8.0V  
10.0V  
12.0V  
15.0V  
12.0V  
15.0V  
20.0V  
70  
60  
50  
40  
0.0  
0.5  
1.0  
1.5  
2.0  
0.0  
0.5  
1.0  
1.5  
2.0  
Iout (A)  
Iout (A)  
Ripple vs Output Current  
Ripple vs Output Current  
30  
25  
20  
15  
10  
5
30  
25  
20  
15  
10  
5
Vin  
Vin  
7.5V  
7.0V  
8.0V  
9.0V  
10.0V  
12.0V  
15.0V  
12.0V  
15.0V  
20.0V  
0
0
0.0  
0.5  
1.0  
1.5  
2.0  
0.0  
0.5  
1.0  
1.5  
2.0  
Iout (A)  
Iout (A)  
Thermal Derating (Ta) (See Note 2)  
Thermal Derating (Ta) (See Note 2)  
2.0  
1.5  
1.0  
0.5  
0.0  
2.0  
1.5  
1.0  
0.5  
0.0  
70°C  
No Derating  
@ 85°C  
85°C  
7
9
11  
13  
15  
8
10  
12  
14  
16  
18  
20  
Vin (Volts)  
Vin (Volts)  
Power Dissipation vs Output Current  
Power Dissipation vs Output Current  
2.0  
1.5  
1.0  
0.5  
0.0  
2.0  
1.5  
1.0  
0.5  
0.0  
Vin  
7.0V  
Vin  
7.5V  
8.0V  
9.0V  
10.0V  
12.0V  
15.0V  
12.0V  
15.0V  
20.0V  
0.0  
0.5  
1.0  
1.5  
2.0  
0.0  
0.5  
1.0  
1.5  
2.0  
Iout (A)  
Iout (A)  
Note 1: All data listed in the above graphs, except for derating data, has been developed from actual products tested at 25°C. This data is considered typical data for the ISR.  
Note 2: Thermal derating graphs are developed in free air convection cooling of 40-60 LFM. (See Thermal Application Note)  
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com  
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