ISL8560 データシートの表示（PDF） - Intersil
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ISL8560 Datasheet PDF : 17 Pages
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ISL8560
Typical Performance Curves (Continued)
3.4
3.4
3.3
2A LOAD
3.3
1A LOAD
3.3
NO LOAD
3.2
3.2
5
15
25
35
45
55
65
75
INPUT VOLTAGE (V)
FIGURE 16. OUTPUT VOLTAGE REGULATION vs VIN
(PWM MODE)
5.10
5.05
5.00
4.95
IOUT = 1A
IOUT = 0A
4.90
4.85
IOUT = 2A
4.80
5
15
25
35
45
55
65
75
INPUT VOLTAGE (V)
FIGURE 17. OUTPUT VOLTAGE REGULATION vs VIN
(VOUT = 5V - 500kHz)
12.3
12.2
12.1
12.0
IOUT = 1A
IOUT = 0A
11.9
IOUT = 2A
11.8
11.7
5
15
25
35
45
55
65
75
INPUT VOLTAGE (V)
FIGURE 18. OUTPUT VOLTAGE REGULATION vs VIN
(VOUT = 12V - 500kHz)
900
800
700
600
500
400
IOUT = 0A
300
200
100
0
5
15
25
35
45
55
65
75
VIN (V)
FIGURE 20. POWER DISSIPATION vs VIN AT NO LOAD
(VOUT = 5V - 5000kHz)
24.75
24.50
24.25
IOUT = 1A
IOUT = 0A
24.00
23.75
IOUT = 2A
23.50
23.25
5
15
25
35
45
55
65
75
INPUT VOLTAGE (V)
FIGURE 19. OUTPUT VOLTAGE REGULATION vs VIN
(VOUT = 24V - 500kHz)
LX = 10V/DIV
VOUT RIPPLE = 50mV/DIV
RTCT = 2V/DIV
IL = 0.2A/DIV
FIGURE 21. STEADY STATE OPERATION AT NO LOAD
9
FN9244.7
September 19, 2008
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