isl8540 Intersil Corporation, isl8540 Datasheet - Page 7

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

Typical Performance Curves
5.10
5.05
5.00
4.95
4.90
4.85
4.80
100
100
FIGURE 8. V
90
80
70
60
50
40
30
20
90
80
70
60
50
40
30
20
FIGURE 4. EFFICIENCY vs LOAD (12V INPUT - 500kHz)
FIGURE 6. EFFICIENCY vs LOAD (36V INPUT - 500kHz)
0.0
0.0
0.0
24V V
OUT
2.5V V
(V
1.8V V
OUT
OUT
0.5
5V V
OUT
0.5
0.5
12V V
OUT
REGULATION vs LOAD
OUT
= 5V - 500kHz)
12V V
IN
OUTPUT LOAD (A)
OUTPUT LOAD (A)
OUT
OUTPUT LOAD (A)
3.3V V
1.0
7
1.0
1.0
OUT
36V V
3.3V V
2.5V V
1.5
IN
OUT
OUT
Circuit of Figure 2, V
Typical values are at T
1.2V V
1.5
1.5
24V V
2.0
5V V
OUT
1.8V V
IN
OUT
OUT
2.0
2.0
2.5
ISL8540
IN
A
= 24V, EN# = 0V, FS = 500KHz, V
= +25°C.
3.38
3.35
3.32
3.29
3.26
3.23
3.20
100
12.30
12.20
12.10
12.00
11.90
11.80
11.70
FIGURE 7. V
FIGURE 9. V
90
80
70
60
50
40
30
20
FIGURE 5. EFFICIENCY vs LOAD (24V INPUT - 500kHz)
0.0
0.0
0.0
12V V
OUT
3.3V V
(V
(V
OUT
OUT
OUT
OUT
0.5
0.5
OUT
0.5
5V V
REGULATION vs LOAD
REGULATION vs LOAD
= 3.3V - 500kHz)
= 12V - 500kHz)
2.5V V
36V V
OUT
OUT
OUTPUT LOAD (A)
OUTPUT LOAD (A)
OUTPUT LOAD (A)
1.0
1.0
OUT
IN
= 5V, unless otherwise noted.
1.0
36V V
1.8V V
1.5
1.5
IN
24V V
OUT
1.5
IN
1.2V V
September 18, 2007
24V V
2.0
2.0
OUT
12V V
IN
FN6495.4
IN
2.0
2.5
2.5