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SP6654EU Datasheet(PDF) 7 Page - Exar Corporation

Part # SP6654EU
Description  High Efficiency 800mA Synchronous Buck Regulator
PDF  17 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

SP6654EU Datasheet(HTML) 7 Page - Exar Corporation

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Date: 2/1/05
SP6654 High Efficiency 800mA Synchronous Buck Regulator
© Copyright 2005 Sipex Corporation
CH.2=VOUT
50mV/div. AC
CH.4=IOUT
0.5A/div
CH.2=VOUT
50mV/div. AC
CH.4=IIN
0.5A/div
CH.1=VSHDN
10V/div.
CH.2=VOUT
1V/div. AC
CH.4=ILx
0.5A/div
CH.1=VSHDN
10V/div.
CH.2=VOUT
2V/div. AC
CH.4=ILx
0.5A/div
Figure 15. Load Step, I
OUT=0.4A to 0.8A, VOUT=3.3V
Figure 16. Load Step, I
OUT=0.4A to 0.8A, VOUT=1.5V
Figure 17. Start up from SHDN, I
OUT=0.6A, VOUT=3.3V
Figure 18. Start up from SHDN, I
OUT=0.6A, VOUT=1.5V
TYPICAL PERFORMANCE CHARATERISTICS
Refer to the typical application schematic, TAMB= +27°C
CH.1=VIN
2.5V/div
CH.2=VOUT
2.0V/div
CH.4=IIN
0.5A/div
CH.1=VIN
2.5V/div
CH.2=VOUT
5.0V/div
CH.4=IIN
0.5A/div
Figure 13. V
IN Start up, IOUT=0.6A, VOUT=3.3V
Figure 14. V
IN Start up, IOUT=0.6A, VOUT=1.5V



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