SP6654 Datasheet, PDF (5/17 Pages) Sipex Corporation – High Efficiency 800mA Synchronous Buck Regulator Ideal for portable designs powered with Li Ion battery

TYPICAL PERFORMANCE CHARACTERISTICS
Refer to the typical application schematic, T_AMB= +27°C
100
100
95
95
90
90
85
80
75
70
Vi=3.6V
Vi=3.9V
65
Vi=4.2V
Vi=5.0V
60
0.
1.0
10.0
100.0 1000.0
ILoad (mA)
85
80
75
70
65
60
0.1
Vi=3.6V
Vi=3.9V
Vi=4.2V
Vi=5.0V
1.0
10.0
100.0
ILoad (mA)
1000.0
Figure 1. Efficiency vs Load, V_OUT = 3.3V
Figure 2. Efficiency vs Load, V_OUT = 1.5V
3.40
Vi=3.6V
Vi=3.9V
3.35
Vi=4.2V
Vi=5.0V
3.30
3.25
3.20
0
200 400 600 800 1000
ILoad (mA)
Figure 3. Line/Load Rejection, V_OUT = 3.3V
1.55
Vi=3.6V
Vi=3.9V
1.53
Vi=4.2V
Vi=5.0V
1.51
1.49
1.47
1.45
0
200
400
600
800 1000
ILoad (mA)
Figure 4. Line/Load Rejection, V_OUT = 1.5V
500
Tamb = 85°C
Tamb = 25°C
Tamb = -40°C
400
300
200
100
0
3.0
3.3
3.6
3.9
4.2
Vin (V)
Figure 5. No Load Battery Current, V_OUT=3.3V
50
Tamb = 85°C
Tamb = 25°C
Tamb = -40°C
40
30
20
10
0
3.0
3.3
3.6
3.9
4.2
Vin (V)
Figure 6. No Load Battery Current, V_OUT=1.5V
Date: 2/1/05
SP6654 High Efficiency 800mA Synchronous Buck Regulator
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© Copyright 2005 Sipex Corporation