el7581 Intersil Corporation, el7581 Datasheet - Page 6

• Manufacturer Part Number: el7581
• Description: 3-channel Dc/dc Converter
• Manufacturer: Intersil Corporation

Typical Performance Curves
1400
1200
1000
800
600
400
200
20
19
18
17
16
15
14
-1
-2
4
3
2
1
0
0
50
0
0
f(MHz) = 1/(0.0118 R
10
50
FIGURE 7. LOAD REGULATION
250
FIGURE 11. F
100
V
FIGURE 9. V
20
DDP
15V
150
= 12V
30
450
OSC
I
R
12V
I
LOAD
OUT
200
OSC
6
40
+ 0.378)
ON
S
(mA)
(mA)
(kΩ)
250
vs R
9V
vs I
650
V
50
DDP
OSC
300
ON
(Continued)
V
F
= 15V
60
IN
S
350
850
= 700kHz
= 3.3V
5V
70
400
1050
450
80
EL7581
-0.5
-1.5
6.5
5.5
4.5
3.5
2.5
1.5
0.5
6
5
4
3
2
1
0
-1
-2
6
5
4
3
2
1
0
50
0
FIGURE 12. SWITCHING PERIOD vs R
SWITCHING PERIOD (µs) = 0.0118 R
0
50
10
FIGURE 8. LOAD REGULATION
V
DDN
250
FIGURE 10. V
100
= 12V
20
150
30
450
I
R
LOAD
200
I
OSC
OUT
40
OFF
15V
(mA)
(kΩ)
(mA)
250
650
vs I
50
300
OFF
OSC
V
F
12V
S
IN
V
60
DDN
350
= 700kHz
=5V
850
+ 0.378
OSC
= 15V
70
400
9V
1050
450
80