ISL8112 Intersil Corporation, ISL8112 Datasheet - Page 9

• Manufacturer Part Number: ISL8112
• Description: Main Power Supply Controllers
• Manufacturer: Intersil Corporation

Typical Performance Curves
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
300
250
200
150
100
250
200
150
100
FIGURE 3. V
50
50
0
0.001
0
0
0.001
0.001
FIGURE 5. V
FIGURE 7. V
7 V
7 V
7 V
12 V
12 V
ULTRA-SKIP
SKIP
ULTRA-SKIP
IN
IN
IN
IN
IN
SKIP MODE
PWM MODE
ULTRA SKIP MODE
OUT2
SKIP MODE
PWM MODE
0.010
0.010
0.010
OUT2
OUT1
= 3.3V EFFICIENCY vs LOAD (500kHz)
PWM
OUTPUT LOAD (A)
OUTPUT LOAD (A)
OUTPUT LOAD (A)
= 1.05V FREQUENCY vs LOAD
= 1.5V FREQUENCY vs LOAD
9
0.100
0.100
0.100
PWM
12 V
25 V
25 V
25 V
IN
IN
IN
IN
ULTRA SKIP MODE
SKIP MODE
PWM MODE
ULTRA SKIP MODE
Circuit of Figure 17 and Figure 18, no load on LDO, VSEN1, VSEN2, VREF2, and VREF1,
V
unless otherwise noted. Typical values are at T
IN
1.000
1.000
1.000
SKIP
= 12V, EN2 = EN1 = VCC, VBYP = 5V, PVCC = 5V, VEN_LDO = 5V, T
10.000
10.000
10.000
ISL8112
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
50
45
40
35
30
25
20
15
10
50
45
40
35
30
25
20
15
10
FIGURE 4. V
5
0
0
5
0
0.001
0.001
0.001
ULTRA-SKIP
FIGURE 6. V
7 V
7 V
7 V
12 V
12 V
FIGURE 8. V
IN
IN
IN
IN
IN
A
SKIP MODE
PWM MODE
ULTRA SKIP MODE
SKIP MODE
PWM MODE
PWM
OUT1
= +25°C. (Continued)
0.010
0.010
0.010
OUT2
= 5V EFFICIENCY vs LOAD (400kHz)
OUT1
OUTPUT LOAD (A)
OUTPUT LOAD (A)
OUTPUT LOAD (A)
= 1.05V RIPPLE vs LOAD
= 1.5V RIPPLE vs LOAD
0.100
0.100
0.100
SKIP
12 V
25 V
25 V
25 V
A
IN
IN
IN
IN
= -40°C to +100°C,
ULTRA SKIP MODE
SKIP MODE
PWM MODE
ULTRA SKIP MODE
SKIP
PWM
1.000
1.000
1.000
ULTRA-SKIP
November 21, 2006
FN6396.0
10.000
10.000
10.000