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| SP6654 Datasheet, PDF (7/17 Pages) Sipex Corporation – High Efficiency 800mA Synchronous Buck Regulator Ideal for portable designs powered with Li Ion battery | |||
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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.1=VIN
2.5V/div
CH.2=VOUT
5.0V/div
CH.4=IIN
0.5A/div
CH.4=IIN
0.5A/div
Figure 13. VIN Start up, IOUT=0.6A, VOUT=3.3V
Figure 14. VIN Start up, IOUT=0.6A, VOUT=1.5V
CH.2=VOUT
50mV/div. AC
CH.4=IOUT
0.5A/div
CH.2=VOUT
50mV/div. AC
CH.4=IIN
0.5A/div
Figure 15. Load Step, IOUT=0.4A to 0.8A, VOUT=3.3V
Figure 16. Load Step, IOUT=0.4A to 0.8A, VOUT=1.5V
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 17. Start up from SHDN, IOUT=0.6A, VOUT=3.3V
Figure 18. Start up from SHDN, IOUT=0.6A, VOUT=1.5V
Date: 2/1/05
SP6654 High Efficiency 800mA Synchronous Buck Regulator
7
© Copyright 2005 Sipex Corporation
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