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LM2575 数据表(PDF) 8 Page - First Components International

部件名 LM2575
功能描述  1.0A Step - Down Voltage Switching Regulators 1A output current
PDF  10 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  FCI [First Components International]
网页  http://www.cotra.com.tw/
标志 FCI - First Components International

LM2575 数据表(HTML) 8 Page - First Components International

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8
Typical Performance Characteristics
0
10 20 30 40 50 60 70 80 90 100
q
= 32
JA
°C/ W
AMBIENT TEMPERATURE (°C)
Figure 5. Maximum Power Dissipation(TO-263)
4
3
2
1
0
q
= 37
JA
°C/ W
q
= 50
JA
°C/ W
q
= 73
JA
°C/ W
20
18
16
14
12
10
8
6
4
0
10
20
30
40
50
60
INPUT VOLTAGE (V)
Figure 4. Quiescent Current
V
= 5V
OUT
Measured at
Ground Pin
T = 25°C
J
I
= 1A
LOAD
I
= 200mA
LOAD
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
-50
-25
0
25
50
75
100
125
JUNCTION TEMPERATURE (°C)
Figure 6. Minimum Operating Voltage
V
= 1.23V
OUT
I
= 120 mA
LOAD
8
7
6
5
4
3
2
1
0
0
5
10
15
20
25
ON / OFF PIN VOLTAGE (V)
Figure 7. ON / OFF Pin Current (Sinking)
V
= 40V
IN
-40°C
T
125
J
°C
Adjustable Version Only
LM2575 1.0A Step - Down Voltage Switching Regulators



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