SS6639 查看數據表（PDF） - Silicon Standard Corp.
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SS6639 Datasheet PDF : 12 Pages
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n TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
SS6639
3.4
3.2
VIN=1.5V
VIN=2.0V
3.0
2.8
VIN=1.2V
2.6
2.4
0
50
100 150 200 250 300 350 400
Output Current (mA)
Fig. 5 SS6639-33 Loading Regulation (L=33µH)
5.25
5.00
4.75
VIN=3.0V
4.50
VIN=2.0V
4.25
VIN=1.5V
4.00
3.75 VIN=0.9V
3.50
VIN=1.2V
3.25
0
100
200
300
400
500
600
700
Output Current (mA)
Fig. 7 SS6639-50 Load Regulation (L=33µH)
2.0
1.8
1.6
1.4
1.2
Start up
1.0
0.8
0.6
0.4
Hold on
0.2
0.0
0
20 40 60 80 100 120 140 160 180 200
Output Current (mA)
Fig. 9 SS6639-27 Start-up & Hold-on Voltage (L=33µH)
90
85
80
75
VIN=2.0V
70
VIN=1.5V
65
VIN=0.9V
60
0
50
100 150 200 250 300 350 400
Output Current (mA)
Fig. 6 SS6639-33 Efficiency (L=33µH)
90
85
80
75
VIN=1.5V
70
65 VIN=0.9V
VIN=1.2V
60
VIN=2.0V
VIN=3.0V
55
50
45
40
0
100
200
300
400
500
600
700
Output Current (mA)
Fig. 8 SS6639-50 Efficiency (L=33µH)
1.2
1.0
Start up
0.8
0.6
Hold on
0.4
0.2
0.0
0
20
40
60
80
100 120 140 160
Output Current (mA)
Fig. 10 SS6639-30 Start-up & Hold-on Voltage (L=33µH)
Rev.2.01 6/26/2003
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