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ISL6236 Datasheet, PDF (10/35 Pages) Intersil Corporation – High-Efficiency, Quad-Output, Main Power Supply Controllers for Notebook Computers
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ISL6236
Typical Performance Curves
Circuit of Figures 66, 67 and 68, no load on LDO, OUT1, OUT2, VREF3, and REF, VIN = 12V,
EN2 = EN1 = VCC, VBYP = 5V, PVCC = 5V, VEN LDO = 5V, TA = -40°C to +100°C, unless
otherwise noted. Typical values are at TA = +25°C. (Continued)
7VIN SKIP MODE
7VIN PWM MODE
7VIN ULTRA SKIP MODE
12VIN SKIP MODE
2.5 12VIN PWM MODE
12VIN ULTRA SKIP MODE
25VIN SKIP MODE
25VIN PWM MODE
25VIN ULTRA SKIP MODE
7VIN SKIP MODE
7VIN PWM MODE
7VIN ULTRA SKIP MODE
12VIN SKIP MODE
2.5 12VIN PWM MODE
12VIN ULTRA SKIP MODE
25VIN SKIP MODE
25VIN PWM MODE
25VIN ULTRA SKIP MODE
2.0
2.0
1.5
1.5
1.0
1.0
0.5
0.5
0.0
0.001
0.010
0.100
1.000
10.000
OUTPUT LOAD (A)
FIGURE 9. VOUT2 = 1.05V POWER DISSIPATION vs LOAD
(300kHz)
0.0
0.001
0.010
0.100
1.000
10.000
OUTPUT LOAD (A)
FIGURE 10. VOUT1 = 1.5V POWER DISSIPATION vs LOAD
(200kHz)
7VIN SKIP MODE
7VIN PWM MODE
7VIN ULTRA SKIP MODE
12VIN SKIP MODE
3.5 12VIN PWM MODE
12VIN ULTRA SKIP MODE
25VIN SKIP MODE
25VIN PWM MODE
25VIN ULTRA SKIP MODE
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0.001
0.010
0.100
1.000
10.000
OUTPUT LOAD (A)
FIGURE 11. VOUT2 = 3.3V POWER DISSIPATION vs LOAD
(500kHz)
7VIN SKIP MODE
7VIN PWM MODE
7VIN ULTRA SKIP MODE
12VIN SKIP MODE
3.5 12VIN PWM MODE
12VIN ULTRA SKIP MODE
25VIN SKIP MODE
25VIN PWM MODE
25VIN ULTRA SKIP MODE
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0.001
0.010
0.100
1.000
10.000
OUTPUT LOAD (A)
FIGURE 12. VOUT1 = 5V POWER DISSIPATION vs LOAD
(400kHz)
1.064
1.062
NO LOAD PWM
1.060
1.058
1.056
1.054
MID LOAD PWM
1.052
1.050
MAX LOAD PWM
1.048
57
9 11 13 15 17 19 21 23 25
INPUT VOLTAGE (V)
FIGURE 13. VOUT2 = 1.05V OUTPUT VOLTAGE REGULATION
vs VIN (PWM MODE)
10
1.068
1.066
1.064
1.062
NO LOAD PWM
1.060
1.058
1.056
1.054
1.052
MID LOAD PWM
1.050
MAX LOAD PWM
1.048
5 7 9 11 13 15 17 19 21 23 25
INPUT VOLTAGE (V)
FIGURE 14. VOUT2 = 1.05V OUTPUT VOLTAGE REGULATION
vs VIN (SKIP MODE)
FN6373.6
April 29, 2010
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