ZL9117M
Typical Performance Curves
Typical values are used unless otherwise noted. (Continued)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
Operating condition: T A = +25°C, No air flow, F SW = 571kHz. V DRV = 5V. C OUT = 3000μF.
V IN = 12V
V OUT = 1.2V
t FALL = 5ms
-0.2
0
1
2
3
4
5 6
7
8
9
10
TIME (ms)
FIGURE 8. RAMP-DOWN
Derating Curves
Operating conditions: T A = +25°C, F SW = 571kHz. V DRV = 5V. C OUT = 3000μF.
Typical values are used unless otherwise noted.
20
18
16
14
12
NO AIR FLOW
20
18
16
14
12
NO AIR FLOW
10
8
6
4
2
3.3V
1.0V
10
8
6
4
2
3.3V
2.5V
1.8V
1.0V
0
50
60
70 80 90 100 110
120
130
0
50
60
70
80 90 100 110
120
130
AMBIENT TEMPERATURE (°C)
FIGURE 9. DERATING CURVE, 5V IN , FOR VARIOUS OUTPUT
VOLTAGES LISTED
7
1.8V
AMBIENT TEMPERATURE (°C)
FIGURE 10. DERATING CURVE, 12V IN , FOR VARIOUS OUTPUT
VOLTAGES LISTED
7
6
5
2.5V
6
5
3.3V
2.5V
1.8V
4
3
3.3V
1.0V
4
3
2
1
1.2V
2
1
1.0V
1.2V
0
0
2
4
6
8
10
12
14
16
18
0
0
2
4
6 8 10 12
14
16
18
OUTPUT CURRENT (A)
FIGURE 11. POWER LOSS CURVE, 5V IN , FOR VARIOUS OUTPUT
VOLTAGES LISTED
9
OUTPUT CURRENT (A)
FIGURE 12. POWER LOSS CURVE, 12V IN , FOR VARIOUS OUTPUT
VOLTAGES LISTED
FN7914.3
July 22, 2013
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