SP6641BEK-L-5-0-TR Datasheet, PDF (4/14 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
100
95
V_IN = 3.0V
V_IN = 1.3V
V_IN = 2.6V
V_IN = 1.0V
90
V_IN = 2.0V
85
80
75
70
65
60
0.1
1.0
10.0
100.0
1000.0
Iload (mA)
Figure 3. SP6641AEK - 3.3 Efficiency vs Load Current
100
V_IN = 3.0V
V_IN = 1.3V
95
V_IN = 2.6V
V_IN = 1.0V
90
V_IN = 2.0V
85
80
75
70
65
60
0.1
1.0
10.0
100.0
1000.0
Iload (mA)
Figure 4. SP6641BEK - 3.3 Efficiency vs Load Current
3.400
3.380
3.360
3.340
VIN = 3.0V
VIN = 2.6V
VIN = 2.0V
VIN = 1.3V
VIN = 1.0V
3.320
3.300
3.280
3.260
3.240
3.220
3.200
0
50
100
150
200
250
Iload (mA)
Figure 5. SP6641AEK - 3.3 Line/Load Rejection vs Load
Current
3.400
3.380
3.360
3.340
3.320
3.300
3.280
3.260
3.240
3.220
3.200
0
VIN = 3.0V
VIN = 2.6V
VIN = 2.0V
VIN = 1.3V
VIN = 1.0V
200
400
600
800
Iload (mA)
Figure 6. SP6641BEK - 3.3 Line/Load Rejection vs Load
Current
100
95
90
85
80
75
70
65
60
0.1
Vi=4.2V
Vi=3.6V
Vi=3.3V
Vi=2.0V
Vi=1.3V
1.0
10.0
100.0
1000.0
Iload (mA)
Figure 7. SP6641AEK-5.0 Efficiency Vs Load Current
100
Vi=4.2V
95
Vi=3.6V
Vi=3.3V
90
Vi=2.0V
Vi=1.3V
85
80
75
70
65
60
0.1
1.0
10.0
100.0
1000.0
Iload (mA)
Figure 8. SP6641BEK-5.0 Efficiency Vs Load Current
Rev. 5/26/05, *Patent Pending
SP6641A/6641B 500mA Alkaline DC/DC Boost Regulator in SOT-23
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