ISL6236A Ver la hoja de datos (PDF) - Intersil
Número de pieza
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Fabricante
ISL6236A Datasheet PDF : 37 Pages
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ISL6236A
Typical Performance Curves
Circuit of Figure 66, Figure 67, and Figure 69, 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)
7 VIN SKIP MODE
7 VIN PWM MODE
7 VIN ULTRA SKIP MODE
12 VIN SKIP MODE
2.5 12 VIN PWM MODE
12 VIN ULTRA SKIP MODE
25 VIN SKIP MODE
25 VIN PWM MODE
25 VIN ULTRA SKIP MODE
7 VIN SKIP MODE
7 VIN PWM MODE
7 VIN ULTRA SKIP MODE
12 VIN SKIP MODE
2.5 12 VIN PWM MODE
12 VIN ULTRA SKIP MODE
25 VIN SKIP MODE
25 VIN PWM MODE
25 VIN 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)
7 VIN SKIP MODE
7 VIN PWM MODE
7 VIN ULTRA SKIP MODE
12 VIN SKIP MODE
3.5 12 VIN PWM MODE
12 VIN ULTRA SKIP MODE
25 VIN SKIP MODE
25 VIN PWM MODE
25 VIN 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)
7 VIN SKIP MODE
7 VIN PWM MODE
7 VIN ULTRA SKIP MODE
12 VIN SKIP MODE
3.5
12 VIN PWM MODE
12 VIN ULTRA SKIP MODE
25 VIN SKIP MODE
25 VIN PWM MODE
25 VIN 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
1.048
5
MMAAXX LLOOAADD PPWWMM
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)
FN6453.0
March 14, 2007
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