TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
SS6642G
5.0
4.9
4.8
4.7
4.6
No Load
4.5
4.4
4.3
4.2
4.1
4.0
-40
-20
0
20
40
60
80
100
Temperature (°C)
Fig. 48 SS6642-45 Output Voltage vs. Temperature
160
140
120
100
80
60
40
-40
Fig. 50
-20
0
20
40
60
80
100
Temperature (°C)
SS6642-45 Switching Frequency vs. Temperature
90
80
70
60
50
40
30
20
10
-40
-20
0
20
40
60
80
100
Temperature (°C)
Fig. 49 SS6642-45 Supply Current vs. Temperature
80
78
76
74
72
70
-40
Fig. 51
-20
0
20
40
60
80
100
Temperature (°C)
SS6642-45 Maximum Duty Cycle vs. Temperature
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-40
-20
0
20
40
60
80
100
Temperature (°C)
Fig. 52 SS6642-45 SW Turn ON Resistance vs. Temperature
5.5
5.0
4.5
4.0
VIN=2.0V
VIN=3.0V
3.5
VIN=1.5V
3.0
2.5
VIN=1.2V
2.0 VIN=0.9V
1.5
0
50
100 150 200 250 300 350 400
Output Current (mA)
Fig. 53 SS6642-50 Load Regulation ( L=100µH CD54)
1/15/2005 Rev.2.10
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