isl8501 Intersil Corporation, isl8501 Datasheet - Page 9

• Manufacturer Part Number: isl8501
• Description: Triple Output Controller With 1a Standard Buck Pwm And Dual Ldos
• Manufacturer: Intersil Corporation

Typical Performance Curves
FIGURE 9. V
2.503
2.503
2.502
2.502
2.501
2.501
2.500
5.015
5.014
5.013
5.012
5.010
5.009
5.008
5.007
5.006
5.005
5.011
0.12
0.10
0.08
0.06
0.04
0.02
0.00
0.00
0.00
FIGURE 11. V
FIGURE 13. INPUT POWER vs V
5
7
OUT
0.25
0.25
12V
9
REGULATION vs LOAD, 500kHz 2.5V
OUT
IN
12V
11
0.50
0.50
IN
REGULATION vs LOAD, 5V
INPUT VOLTAGE (V)
OUTPUT LOAD (A)
OUTPUT LOAD (A)
13
9
7V
0.75
0.75
15
IN
NO LOAD
25V
17
7V
IN
IN
1.00
1.00
IN
, V
I
Typical values are at T
Circuit of Figure 2. V
LDO1
19
OUT
= 3.3V
= 450mA, V
21
1.25
1.25
OUT
25V
23
OUT
IN
1.50
1.50
LDO2
25
ISL8501
IN
A
= 12V, VIN_LDO1 = VIN_LDO2 = V
= 1.8V, I
= +25°C. (Continued)
LDO2
FIGURE 10. V
3.320
3.318
3.316
3.314
3.312
3.310
3.320
3.318
3.315
3.313
3.310
3.308
3.305
3.303
3.300
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
FIGURE 12. POWER DISSIPATION vs LOAD, 3.3V
FIGURE 14. OUTPUT VOLTAGE REGULATION vs V
0
0.00
= 450mA, T
0.00
5
NO LOAD
7
0.25
0.25
OUT
A
2A LOAD
9
= -40°C to +85°C unless otherwise noted.
REGULATION vs LOAD, 500kHz 3.3V
12V
12V
11
0.50
IN
0.50
OUT1
IN
OUTPUT LOAD (A)
INPUT VOLTAGE (V)
1A LOAD
25V
OUTPUT LOAD (A)
13
IN
= 3.3V, I
0.75
0.75
15
OUT1
17
1.00
1.00
7V
= 1A, V
IN
19
25V
1.25
21
7V
LDO1
1.25
IN
IN
July 12, 2007
OUT
23
FN6500.1
= 1.2V,
IN
OUT
1.50
1.50
25