SP6644 Datasheet, PDF (5/15 Pages) Sipex Corporation – Single/Dual Alkaline Cell, High Efficiency Step-Up DC-DC Converter

Refer to the circuit in Figure 28, T_AMB = +25^oC unless otherwise noted.
5.08
5.07
5.06
5.05
5.04
5.03
5.02
5.01
5.00
0
10 20 30 40 50 60 70 80 90 100
Vb=1.3V
Vb=2.6V
Iload (mA)
Figure 9. Line/Load vs. Output Current (Vout=5V),
Rlim=2.5k, Li=22uH Sumida CD43, Refer to figure 29,
R1=499k, R2=169k
240
220
200
180
160
140
120
100
80
60
40
20
0
0.0
1.0
2.0
3.0
4.0
Vbatt (V)
Figure 11. Maximum Load Current vs. Vbatt
(Vout=3.3V), Li=22uH Sumida CD43
Rlim=2.5K
Rlim=5K
PERFORMANCE CHARACTERISTICS
5.08
5.07
5.06
5.05
5.04
5.03
5.02
5.01
5.00
0
10
20
30
Iload (mA)
40
50
Vb=1.3V
Vb=2.6V
Figure 10. Line/Load vs. Output Current (Vout=5V),
Rlim=5k, Li=22uH Sumida CD43, Refer to figure 29,
R1=499k, R2=169k
240
220
200
180
160
140
120
100
80
60
40
20
0
0.0
1.0
2.0
3.0
Vbatt (V)
Rlim=2.5K
Rlim=5K
4.0
Figure 12. Maximum Load Current vs. Vbatt (Vout=5V),
Li=22uH Sumida CD43, Refer to Figure 29,
R1=499k, R2=169k
10000
1000
100
Rlim=2.5k
Rlim=5k
10
0.0
1.0
2.0
3.0
4.0
Vbatt (V)
Figure 13. No Load Battery Current vs. Vbatt
(Vout=3.3V), Li=22uH Sumida CD43
3.33
3.32
3.31
3.30
3.29
3.28
3.27
-40 -20
0
20
40
60
Temperature (degC)
80
100
Figure 14. Output Voltage vs. Temperature,
Rlim=2.5k, Rload=3k, (Vout=3.3V),Li=22uH Sumida CD43
60
55
50
45
40
35
30
-40 -20
0
20
40
60
Temperature (degC)
80 100
Figure 15. Io Pin Quiescent Current vs. Temperature,
(Vout=3.3V)
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-40 -20
0
20
40
60
Temperature (degC)
80
100
Figure 16. Ibatt Pin Quiescent Current vs. Temperature,
(Vout=3.3V), Vbatt=1.0V
Rev:B Date 4/13/04
SP6644/6645 High Efficiency Boost Regulator
5
© Copyright 2004 Sipex Corporation