SP6644_05 Datasheet, PDF (4/15 Pages) Sipex Corporation – Single/Dual Alkaline Cell, High Efficiency Boost DC-DC Regulator

Refer to the circuit in Figure 28, T_AMB = +25^oC unless otherwise noted.
100
90
80
70
60
50
40
0.1
1.0
10.0
100.0
Iload (mA)
Vb=1.0V
Vb=1.3V
Vb=2.0V
Vb=2.6V
Vb=3.2V
1000.0
Figure 1. Efficiency vs. Output Current (Vout=3.3V),
Rlim=2.5k, Li=22uH Sumida CD43
PERFORMANCE CHARACTERISTICS
100
90
80
70
60
50
40
0.1
Vb=1.0V
Vb=1.3V
Vb=2.0V
Vb=2.6V
Vb=3.2V
1.0
10.0
100.0
Iload (mA)
1000.0
Figure 2. Efficiency vs. Output Current (V_OUT=3.3V),
Rlim=5k, Li=22µH Sumida CD43
100
90
80
70
60
50
40
0.1
1.0
10.0
100.0
Iload (mA)
Vb=1.0V
Vb=1.3V
Vb=2.0V
Vb=2.6V
Vb=3.2V
1000.0
Figure 3. Efficiency vs. Output Current (Vout=3.3V),
Rlim=2.5k, Li=22uH Sumida CDRH5D18 Low Profile
100
90
80
70
60
50
40
0.1
Vb=1.0V
Vb=1.3V
Vb=2.0V
Vb=2.6V
Vb=3.2V
1.0
10.0
100.0
Iload (mA)
1000.0
Figure 4. Efficiency vs. Output Current (Vout=3.3V),
Rlim=5k, Li=100µH Sumida CD54
100
90
80
Vb=1.0V
70
Vb=1.3V
Vb=2.0V
60
Vb=2.6V
50
Vb=3.2V
40
0.1
1.0
10.0
100.0
Iload (mA)
1000.0
Figure 5. Efficiency vs. Output Current (Vout=5V),
Rlim=2.5k, Li=22uH Sumida CD43, Refer to Figure 29,
R1=499k, R2=169k
3.33
3.32
3.31
3.30
3.29
3.28
3.27
0
20 40
60 80 100 120 140 160 180 200
Iload (mA)
Vb=1.3V
Vb=2.6V
Figure 7. Line/Load Rejection vs. Output Current
(Vout=3.3V), Rlim=2.5k, Li=22uH Sumida CD43
100
90
80
70
60
50
40
0.1
Vb=1.0V
Vb=1.3V
Vb=2.0V
Vb=2.6V
Vb=3.2V
1.0
10.0
100.0
Iload (mA)
1000.0
Figure 6. Efficiency vs. Output Current (Vout=5V),
Rlim=5k, Li=22uH Sumida CD43, Refer to Figure 29,
R1=499k, R2=169k
3.33
3.32
3.31
3.30
3.29
3.28
3.27
0 10 20 30 40 50 60 70 80 90 100
Iload (mA)
Vb=1.3V
Vb=2.6V
Figure 8. Line/Load Rejection vs. Output Current
(Vout=3.3V), Rlim=5k, Li=22uH Sumida CD43
Date: 11/30/04
SP6644/6645 High Efficiency Boost Regulator
4
© Copyright 2004 Sipex Corporation