SP6652 Datasheet, PDF (11/16 Pages) Sipex Corporation – 1A, High Efficiency, High Frequency Current Mode PWM Buck Regulator

TYPICAL PERFORMANCE CHARACTERISTICS
100
90
80
70
60
50
40
30
20
10
0
1
SP6652 Efficiency vs Load Vout = 3.3V
Vi=3.6V
Vi=3.9V
Vi=4.2V
Vi=5.0V
10
100
1000
ILoad (mA)
Figure 5. Efficiency vs. Load, Vout= 3.3V
100
90
80
70
60
50
40
30
20
10
0
1
SP6652 Efficiency vs Load (Vout = 1.5V)
Vi=3.0V
Vi=3.6V
Vi=3.9V
Vi=4.2V
10
100
ILoad (mA)
1000
Figure 6. Efficiency vs. Load, Vout= 1.5V
SP6652 Line/Load Rejection Vout = 3.3V
3.40
3.35
3.30
3.25
3.20
0
Vi=3.6V
Vi=3.9V
Vi=4.2V
Vi=5.0V
200
400
600
800
1000
ILoad (mA)
Figure 7: Line/Load Rejection , Vout = 3.3V
1.520
SP6652 Line/Load Rejection VOUT = 1.5V
1.510
1.500
1.490
1.480
0
Vi=4.2V
Vi=3.9V
Vi=3.6V
Vi=3.0V
200
400
600
800
1000
ILoad (mA)
Figure 8: Line/Load Rejection , Vout = 1.5V
SP6652 Line/Load Regulation, Vout = 3.3V
3.340
3.330
3.320
3.310
3.300
3.290
3.280
1
Vi=3.6V
Vi=3.9V
Vi=4.2V
Vi=5.0V
10
100
1000
ILoad (mA)
Figure 9: Line/Load Regulation , Log Scale,
Vout = 3.3V
1.520
SP6652 Line/Load Rejection VOUT = 1.5V
1.510
1.500
1.490
1.480
1
Vi=4.2V
Vi=3.9V
Vi=3.6V
Vi=3.0V
10
100
ILoad (mA)
1000
Figure 10: Line/Load Regulation , Log Scale,
Vout = 1.5V
Oct10-07 RevJ
SP6652 1A, High Efficiency, Current Mode PWM Buck Regulator
11
© 2007 Sipex Corporation