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FX5545G108 Datasheet(PDF) 5 Page - Vishay Siliconix

Part No. FX5545G108
Description  The Smallest and Low Profile 0.9V to 4.5V, 4A with 570W/in^3 Power Density Efficiency up to 95% DC/DC Buck Converter
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Maker  VISHAY [Vishay Siliconix]
Homepage  http://www.vishay.com
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FX5545G108 Datasheet(HTML) 5 Page - Vishay Siliconix

   
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Document Number: 10131
For technical questions, contact FunctionPAK@vishay.com
For marketing questions, contact FunctionPAK.marketing@vishay.com
www.vishay.com
Revision: 21-Jan-05
43
FX5545G108
Vishay
Vout Vs. lout*
Vin = 4V
Vout Vs. Vin*
3.2
3.25
3.3
3.35
3.4
3.45
3.5
3
3.05
3.1
3.15
0.5
1
1.5
02
2.5
3
3.5
4
4.5
lout (A)
3.2
3.25
3.3
3.35
3.4
3.45
3.5
45
6
3
3.05
3.1
3.15
37
3.5
4.5
5.5
6.5
7.5
Vin (V)
lout = 1A
lout = 3A
lout = 4A
Vout Vs lout*
Vin = 4V
∆Temp Vs. lout*
Above 25°C Ambient Temperature
Vin = 6.0V; Vout = 1.2V
Vout Vs. Vin*
Efficiency Vs. lout*
Vout = 1.2V
1.2
1.25
1.3
1.35
1.4
1.45
1.5
1
1.05
1.1
1.15
0.5
1
1.5
02
2.5
3
3.5
4
4.5
lout (V)
30
40
50
60
0
10
20
0.5
13
0
3.5
1.5
2
2.5
70
44.5
100
80
90
lout (A)
1.2
1.25
1.3
1.35
1.4
1.45
1.5
34
5
1
1.05
1.1
1.15
26
2.5
3.5
4.5
5.5
6.5
Vin (V)
lout = 1A
lout = 4A
lout = 3A
40
50
60
80
100
0
0.5
2
2.5
3.5
1
1.5
3
90
70
4.5
4
lout (A)
PWM MODE
∆Temp Vs. lout*
Above 25°C Ambient Temperature
Vin = 6.0V; Vout = 3.3V
Efficiency Vs. lout*
Vout = 3.3V
30
40
50
60
0
10
20
0.5
13
0
3.5
1.5
2
2.5
70
44.5
100
80
90
lout (A)
60
70
80
90
100
0
0.5
2
2.5
3.5
1
1.5
3
95
85
75
65
4.5
4
lout (A)
Vin = 4.0V
Vin = 5.0V
*Note: Measurements were taken with Power supply: ZUP 20-40 from Nemic Lambda; Electronic load: 6063B from Agilent; Multimeter: Fluke 45
from Fluke and 34401 digital multimeter from Agilent; Scope: Infiniium 54815A from Agilent.


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