
5
Rev. 3/5/02, *Patent Pending
SP6641A/6641B 500mA Alkaline DC/DC Boost Regulator in SOT-23
Copyright 2002 Sipex Corporation
Figure 9. SP6641AEK-5.0 Line/Load Rejection Vs Load
Current
Figure 10. SP6641BEK-5.0 Line/Load Rejection Vs
Load Current
PERFORMANCE CHARACTERISTICS
Refer to the circuit in Figure 1, T
AMB
= +25
°
C
Figure 11. SP6641AEK-3.3 & SP6641AEK-5.0 No Load
Battery Current
Figure 12. SP6641BEK-3.3 & SP6641AEK-5.0 No Load
Battery Current
Figure 13. SP6641AEK-3.3 & SP6641AEK-5.0
Maximum Resistive Load Current in Startup
Figure 14. SP6641BEK-3.3 & SP6641BEK-5.0
Maximum Resistive Load Current in Startup
Iload (mA)
V
5.000
5.020
5.040
5.060
5.080
5.100
5.120
5.140
5.160
5.180
5.200
0
50
100
150
200
250
Vi=4.2V
Vi=3.6V
Vi=3.3V
Vi=2.0V
Vi=1.3V
Iload (mA)
V
4.900
4.920
4.940
4.960
4.980
5.000
5.020
5.040
5.060
5.080
5.100
0
200
400
600
800
Vi=4.2V
Vi=3.6V
Vi=3.3V
Vi=2.0V
Vi=1.3V
Vin (V)
I
0
0.5
50
100
150
200
250
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
SP6641AEK-5.0
SP6641AEK-3.3
Vin (V)
I
0
0.5
50
100
150
200
250
300
350
400
450
500
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
SP6641B-5.0
SP6641B-3.3
Vin (V)
I
0
0.5
50
100
150
200
250
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
SP6641AEK-3.3, 22
μ
H
SP6641AEK-3.3, 10
μ
H
SP6641AEK-5.0, 22
μ
H
SP6641AEK-5.0, 10
μ
H
Vin (V)
I
0
0.5
100
200
300
400
500
600
700
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
SP6641BEK-3.3, 22
μ
H
SP6641BEK-3.3, 10
μ
H
SP6641BEK-5.0, 22
μ
H
SP6641BEK-5.0, 10
μ
H