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100
90
80
70
60
I
=1mA
O
50
I
=2mA
O
40
I
30
20
10
0
1
10
Fig.7.13 Boosting power conversion efficiency
- Oscillation frequency "
2.6
2.5
2.4
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
0.1
1.0
Fig.7.15 Boosting start voltage
- load resistance
S1F76640 Technical Manual (Rev.1.5)
I
=10mA
O
=5mA
O
Ta=25 ° C
V
=3V
DD
C1 to C4=10 μ F
100
1000
f
[kHz]
OSC
Ta=25 ° C
V
=5V
DD
C1 to C4=10 μ F
10.0
100.0
R
[k Ω ]
L
7. CHARACTERISTIC DATA
100
90
80
70
60
50
40
30
I
=0.5mA
O
20
10
0
1
Fig.7.14 Boosting power conversion efficiency
- Oscillation frequency #
0.5
0.4
V
=12V
O
0.3
V
=8V
O
0.2
0.1
0.0
0
5
Fig.7.16 Stabilization output saturated resistance
- Load current
EPSON
I
=5mA
O
I
=2mA
O
I
=1mA
O
Ta=25 ° C
V
=3V
DD
C1 to C4=10 μ F
10
100
f
[kHz]
OSC
V
=20V
O
Ta=25 ° C
C1 to C4=10 μ F
10
15
20
25
I
[mA]
O
1000
30
15
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