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EL7581 Datasheet(PDF) 6 Page - Intersil Corporation

Part No. EL7581
Description  3-Channel DC/DC Converter
Download  17 Pages
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Maker  INTERSIL [Intersil Corporation]
Homepage  http://www.intersil.com/cda/home
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EL7581 Datasheet(HTML) 6 Page - Intersil Corporation

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6
FIGURE 7. LOAD REGULATION
FIGURE 8. LOAD REGULATION
FIGURE 9. VON vs ION
FIGURE 10. VOFF vs IOFF
FIGURE 11. FS vs ROSC
FIGURE 12. SWITCHING PERIOD vs ROSC
Typical Performance Curves (Continued)
4
3
2
0
-2
50
250
450
650
850
1050
IOUT (mA)
9V
12V
1
15V
-1
VIN = 3.3V
FS = 700kHz
5V
3
2.5
2
1
-1
-1.5
-2
50
250
450
650
850
1050
IOUT (mA)
9V
12V
1.5
-0.5
15V
0
VIN=5V
FS = 700kHz
0.5
20
19
18
17
16
15
14
0
10
2030
40
50
6070
80
ILOAD (mA)
VDDP = 15V
VDDP = 12V
ILOAD (mA)
6.5
6
5.5
5
4.5
4
3.5
0
10
20
304050
60
70
80
VDDN = 15V
VDDN = 12V
f(MHz) = 1/(0.0118 ROSC + 0.378)
1400
1000
800
400
0
0
50
100
200
450
ROSC (kΩ)
150
300
600
200
400
1200
250
350
SWITCHING PERIOD (µs) = 0.0118 ROSC + 0.378
6
4
3
1
0
0
50
100
200
450
ROSC (kΩ)
150
300
2
400
5
250
350
EL7581


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