ISL8540 查看數據表（PDF） - Intersil
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ISL8540 Datasheet PDF : 16 Pages
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ISL8540
Typical Performance Curves Circuit of Figure 2, VIN = 24V, EN = 0V, FS = 500KHz, VOUT = 5V, unless otherwise noted.
Typical values are at TA = +25°C. (Continued)
3.0
3.0
2.5
2.5
36V VIN
36V VIN
2.0
2.0
1.5
1.5
1.0
24V VIN
0.5
12V VIN
0.0
0.0
0.5
1.0
1.5
2.0
OUTPUT LOAD (A)
FIGURE 16. POWER DISSIPATION vs LOAD
(VOUT = 5V - 500kHz)
1.0
24V VIN
0.5
0.0
0.0
0.5
1.0
1.5
2.0
OUTPUT LOAD (A)
FIGURE 17. POWER DISSIPATION vs LOAD
(VOUT = 12V - 500kHz)
3.0
2.5
36V VIN
2.0
1.5
1.0
0.5
0.0
0.0
0.5
1.0
1.5
2.0
OUTPUT LOAD (A)
FIGURE 18. POWER DISSIPATION vs LOAD
(VOUT = 24V - 500kHz)
LX = 10V/DIV
VOUT RIPPLE = 50mV/DIV
RTCT = 2V/DIV
IL = 0.2A/DIV
FIGURE 19. STEADY STATE OPERATION AT NO LOAD
LX = 10V/DIV
VOUT RIPPLE = 50mV/DIV
RTCT = 2V/DIV
IL = 1A/DIV
LX = 10V/DIV
VOUT RIPPLE = 50mV/DIV
IL = 1A/DIV
FIGURE 20. STEADY STATE OPERATION WITH FULL LOAD
9
FIGURE 21. LOAD TRANSIENT
FN6495.5
September 9, 2008
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