isl8540 Intersil Corporation, isl8540 Datasheet - Page 9

• Manufacturer Part Number: isl8540
• Description: Dc/dc Power Switching Regulator
• Manufacturer: Intersil Corporation

Typical Performance Curves
FIGURE 16. POWER DISSIPATION vs LOAD
FIGURE 18. POWER DISSIPATION vs LOAD
FIGURE 20. STEADY STATE OPERATION WITH FULL LOAD
RTCT = 2V/DIV
V
OUT
3.0
2.5
2.0
1.5
1.0
0.5
0.0
3.0
2.5
2.0
1.5
1.0
0.5
0.0
RIPPLE = 50mV/DIV
0.0
0.0
(V
(V
OUT
OUT
LX = 10V/DIV
= 5V - 500kHz)
= 24V - 500kHz)
0.5
0.5
OUTPUT LOAD (A)
OUTPUT LOAD (A)
9
12V V
1.0
1.0
IN
36V V
36V V
Circuit of Figure 2, V
Typical values are at T
24V V
IN
IN
1.5
1.5
IN
IL = 1A/DIV
2.0
2.0
ISL8540
IN
A
= 24V, EN# = 0V, FS = 500KHz, V
= +25°C. (Continued)
FIGURE 17. POWER DISSIPATION vs LOAD
RTCT = 2V/DIV
V
FIGURE 19. STEADY STATE OPERATION AT NO LOAD
OUT
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0.0
RIPPLE = 50mV/DIV
(V
FIGURE 21. LOAD TRANSIENT
OUT
LX = 10V/DIV
LX = 10V/DIV
= 12V - 500kHz)
0.5
OUT
OUTPUT LOAD (A)
= 5V, unless otherwise noted.
IL = 0.2A/DIV
1.0
V
OUT
36V V
RIPPLE = 50mV/DIV
IN
1.5
IL = 0.2A/DIV
September 18, 2007
24V V
IN
FN6495.4
2.0