SP6654 Datasheet, PDF (6/17 Pages) Sipex Corporation – High Efficiency 800mA Synchronous Buck Regulator Ideal for portable designs powered with Li Ion battery

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