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ISL6236IRZ View Datasheet(PDF) - Intersil

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Description
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ISL6236IRZ Datasheet PDF : 35 Pages
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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
100
12VIN PWM MODE
12VIN ULTRA SKIP MODE
25VIN SKIP MODE
25VIN PWM MODE
25VIN ULTRA SKIP MODE
90
80
70
60
50
40
30
20
10
0
0.001
0.010
0.100
OUTPUT LOAD (A)
1.000
10.000
FIGURE 3. VOUT2 = 3.3V EFFICIENCY vs LOAD (500kHz)
7VIN SKIP MODE
7VIN PWM MODE
7VIN ULTRA SKIP MODE
12VIN SKIP MODE
100
12VIN PWM MODE
12VIN ULTRA SKIP MODE
25VIN SKIP MODE
25VIN PWM MODE
25VIN ULTRA SKIP MODE
90
80
70
60
50
40
30
20
10
0
0.001
0.010
0.100
1.000
10.000
OUTPUT LOAD (A)
FIGURE 4. VOUT1 = 5V EFFICIENCY vs LOAD (400kHz)
1.070
7VIN SKIP MODE
7VIN PWM MODE
7VIN ULTRA SKIP MODE
12VIN SKIP MODE
12VIN PWM MODE
12VIN ULTRA SKIP MODE
25VIN SKIP MODE
25VIN PWM MODE
25VIN ULTRA SKIP MODE
1.068
1.066
1.064
1.062
1.060
1.058
1.056
1.054
1.052
1.050
0.001
0.010
0.100
1.000
10.000
OUTPUT LOAD (A)
FIGURE 5. VOUT2 = 1.05V REGULATION vs LOAD (300kHz)
1.540
7VIN SKIP MODE
7VIN PWM MODE
7VIN ULTRA SKIP MODE
12VIN SKIP MODE
12VIN PWM MODE
12VIN ULTRA SKIP MODE
25VIN SKIP MODE
25VIN PWM MODE
25VIN ULTRA SKIP MODE
1.535
1.530
1.525
1.520
1.515
1.510
1.505
1.500
0.001
0.010
0.100
1.000
10.000
OUTPUT LOAD (A)
FIGURE 6. VOUT1 = 1.5V REGULATION vs LOAD (200kHz)
7VIN SKIP MODE
7VIN PWM MODE
7VIN ULTRA SKIP MODE
12VIN SKIP MODE
3.38 12VIN PWM MODE
12VIN ULTRA SKIP MODE
25VIN SKIP MODE
25VIN PWM MODE
25VIN ULTRA SKIP MODE
3.37
3.36
3.35
3.34
3.33
3.32
3.31
0.001
0.010
0.100
OUTPUT LOAD (A)
1.000
10.000
FIGURE 7. VOUT2 = 3.3V REGULATION vs LOAD (500kHz)
7VIN SKIP MODE
7VIN PWM MODE
7VIN ULTRA SKIP MODE
12VIN SKIP MODE
5.16 12VIN PWM MODE
12VIN ULTRA SKIP MODE
25VIN SKIP MODE
25VIN PWM MODE
25VIN ULTRA SKIP MODE
5.14
5.12
5.10
5.08
5.06
5.04
5.02
5.00
0.001
0.010
0.100
OUTPUT LOAD (A)
1.000
10.000
FIGURE 8. VOUT1 = 5V REGULATION vs LOAD (400kHz)
9
FN6373.6
April 29, 2010
 

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