SP6641BEK-L-5-0-TR Datasheet, PDF (5/14 Pages) Exar Corporation – 500mA Alkaline DC/DC Boost Regulator in SOT-23

PERFORMANCE CHARACTERISTICS
Refer to the circuit in Figure 1, T_AMB = +25°C
5.200
5.180
5.160
5.140
5.120
5.100
5.080
5.060
5.040
5.020
5.000
0
Vi=4.2V
Vi=3.6V
Vi=3.3V
Vi=2.0V
Vi=1.3V
50
100
150
200
250
Iload (mA)
Figure 9. SP6641AEK-5.0 Line/Load Rejection Vs Load
Current
5.100
5.080
5.060
5.040
5.020
5.000
4.980
4.960
4.940
4.920
4.900
0
Vi=4.2V
Vi=3.6V
Vi=3.3V
Vi=2.0V
Vi=1.3V
200
400
600
800
Iload (mA)
Figure 10. SP6641BEK-5.0 Line/Load Rejection Vs
Load Current
250
200
SP6641AEK-5.0
SP6641AEK-3.3
150
100
50
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
Vin (V)
Figure 11. SP6641AEK-3.3 & SP6641AEK-5.0 No Load
Battery Current
500
450
400
SP6641B-5.0
350
SP6641B-3.3
300
250
200
150
100
50
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
Vin (V)
Figure 12. SP6641BEK-3.3 & SP6641AEK-5.0 No Load
Battery Current
250
200
150
100
SP6641AEK-3.3, 22µH
SP6641AEK-3.3, 10µH
50
SP6641AEK-5.0, 22µH
SP6641AEK-5.0, 10µH
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
Vin (V)
Figure 13. SP6641AEK-3.3 & SP6641AEK-5.0
Maximum Resistive Load Current in Startup
700
600
500
400
300
200
SP6641BEK-3.3, 22µH
SP6641BEK-3.3, 10µH
100
SP6641BEK-5.0, 22µH
SP6641BEK-5.0, 10µH
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
Vin (V)
Figure 14. SP6641BEK-3.3 & SP6641BEK-5.0
Maximum Resistive Load Current in Startup
Rev. 5/26/05, *Patent Pending
SP6641A/6641B 500mA Alkaline DC/DC Boost Regulator in SOT-23
5
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