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SP6654 Datasheet(PDF) 6 Page - Sipex Corporation

Part No. SP6654
Description  High Efficiency 800mA Synchronous Buck Regulator
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Maker  SIPEX [Sipex Corporation]
Homepage  http://www.sipex.com
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SP6654 Datasheet(HTML) 6 Page - Sipex Corporation

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6
Date: 2/1/05
SP6654 High Efficiency 800mA Synchronous Buck Regulator
© Copyright 2005 Sipex Corporation
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
3.6
3.9
4.2
4.5
4.8
5.1
5.4
Vin (V)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
3.0
3.3
3.6
3.9
4.2
4.5
4.8
5.1
5.4
Vin (V)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
3.6
3.9
4.2
4.5
4.8
5.1
5.4
Vin (V)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
3.0
3.3
3.6
3.9
4.2
4.5
4.8
5.1
5.4
Vin (V)
Figure 7. K
ON vs VIN, VOUT=3.3V
Figure 8. K
ON vs VIN, VOUT=1.5V
Figure 9. K
OFF vs VIN, VOUT=3.3V
Figure 10. K
OFF vs VIN, VOUT=1.5V
TYPICAL PERFORMANCE CHARATERISTICS
Refer to the typical application schematic, TAMB= +27°C
0.0
100.0
200.0
300.0
400.0
500.0
600.0
700.0
3.5
4.0
4.5
5.0
Vin (V)
Vout = 3.3V
Measured
Vout = 3.3V
Calculated
0.0
100.0
200.0
300.0
400.0
500.0
600.0
700.0
3.4
3.8
4.2
4.6
5.0
Vin (V)
Vout = 1.5V
Measured
Vout = 1.5V
Calculated
Figure 11. Ripple Frequency vs. V
IN, IOUT=600mA,
V
OUT=3.3V
Figure 12. Ripple Frequency vs. V
IN, IOUT=600mA,
V
OUT=1.5V


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