ISL8115 Datasheet, PDF (11/24 Pages) Intersil Corporation – High Voltage Synchronous Buck PWM Controller with Integrated Gate Driver and Current Sharing Capability

ISL8115
Typical Performance Curves
Unless otherwise stated, all curves were tested with example circuit in Figure 1.
95
95
90
90
CCM_V_IN = 12V
85
85
CCM_V_IN = 5V
80
80
75
F_S = 220kHz
70
0
5
10
15
20
OUTPUT CURRENT (A)
FIGURE 4. EFFICIENCY AT 12V INPUT, 1.5V OUTPUT
75
F_S = 220kHz
70
0
5
10
15
20
OUTPUT CURRENT (A)
FIGURE 5. EFFICIENCY AT 5V INPUT, 1.5V OUTPUT
90
80
DEM_V_IN = 12V
70
60
CCM_V_IN = 12V
50
40
F_S = 220kHz
30
0.5
1.5
2.5
3.5
OUTPUT CURRENT (A)
FIGURE 6. EFFICIENCY vs LOAD CURRENT AT 12V INPUT
100
DEM_V_IN = 5V
90
80
CCM_V_IN = 5V
70
60
50
40
F_S = 220kHz
30
0.5
1.5
2.5
3.5
OUTPUT CURRENT (A)
FIGURE 7. EFFICIENCY vs LOAD CURRENT AT 5V INPUT
-0.010
-0.012
-0.014
-0.016
-0.018
-0.020
10
12
14
INPUT VOLTAGE (V)
FIGURE 8. LINE REGULATION, V_OUT = 1.5V, I_O = 20A
0.00000
-0.00010
-0.00020
-0.00030
-0.00040
-0.00050
-0.00060
-0.00070
-0.00080
16
0
5
10
15
20
25
30
35
OUTPUT CURRENT (A)
FIGURE 9. LOAD REGULATION, V_IN = 12V, V_OUT = 1.5V
11
FN8272.1
September 23, 2013