ISL6236A Datasheet, PDF (11/37 Pages) Intersil Corporation – High-Efficiency, Quad-Output, Main Power Supply Controllers for Notebook Computers

ISL6236A
Typical Performance Curves
Circuit of Figures 66, 67 and 68, no load on LDO, OUT1, OUT2, V_REF3, and REF, V_IN = 12V,
EN2 = EN1 = VCC, V_BYP = 5V, PVCC = 5V, V_{EN_LDO} = 5V, T_A = -40°C to +100°C, unless
otherwise noted. Typical values are at T_A = +25°C. (Continued)
1.518
1.516
1.514 NO LOAD PWM
1.512
1.510
MID LOAD PWM
1.508
MAX LOAD PWM
1.506
1.504
5 7 9 11 13 15 17 19 21 23 25
INPUT VOLTAGE (V)
FIGURE 15. V_OUT1 = 1.5V OUTPUT VOLTAGE REGULATION
vs V_IN (PWM MODE)
1.530
1.525
1.520
1.515
NO LOAD PWM
MID LOAD PWM
1.510
1.505
MAX LOAD PWM
1.500
5 7 9 11 13 15 17 19 21 23 25
INPUT VOLTAGE (V)
FIGURE 16. V_OUT1 = 1.5V OUTPUT VOLTAGE REGULATION
vs V_IN (SKIP MODE)
3.340
3.335
3.330
NO LOAD PWM
3.325
3.320
3.315
MID LOAD PWM
MAX LOAD PWM
3.310
7 9 11 13 15 17 19 21 23 25
INPUT VOLTAGE (V)
FIGURE 17. V_OUT2 = 3.3V OUTPUT VOLTAGE REGULATION
vs V_IN (PWM MODE)
3.380
3.370
3.360
3.350
3.340
MAX LOAD PWM
NO LOAD PWM
3.330
3.320
3.310
MID LOAD PWM
3.300
7 9 11 13 15 17 19 21 23 25
INPUT VOLTAGE (V)
FIGURE 18. V_OUT2 = 3.3V OUTPUT VOLTAGE REGULATION
vs V_IN (SKIP MODE)
5.065
5.060
5.055
5.050
NO LOAD PWM
MAX LOAD PWM
MID LOAD PWM
5.045
5.040
7 9 11 13 15 17 19 21 23 25
INPUT VOLTAGE (V)
FIGURE 19. V_OUT1 = 5V OUTPUT VOLTAGE REGULATION vs
V_IN (PWM MODE)
11
5.14
5.12
5.10
5.08
MID LOAD PWM
5.06
NO LOAD PWM
5.04
5.02
7
MAX LOAD PWM
9 11 13 15 17 19 21 23 25
INPUT VOLTAGE (V)
FIGURE 20. V_OUT1 = 5V OUTPUT VOLTAGE REGULATION vs
V_IN (SKIP MODE)
FN6453.3
March 18, 2008