SCI7661C EPSON [Epson Company], SCI7661C Datasheet - Page 4

• Manufacturer Part Number: SCI7661C
• Description: DC-DC Converter
• Manufacturer: EPSON [Epson Company]

4
PERFORMANCE CURVES
Fig.10 Power Conversion Efficiency(P
Fig.1 Oscillation Frequency(f
1000
-10
-15
100
Fig.7 Power Conversion Efficiency
-5
30
20
10
100
0
1
10K
0
90
80
70
60
50
40
30
20
10
Fig.4 Output Voltage(V
100
0
10
90
80
70
60
50
40
30
20
10
vs.Oscillation Frequency(f
0
I
0.5mA
I
V
External-Resistance(R
OUT
OUT
3
0
(P
Ta=25 C
V
IN
V
V
1mA
I
OUT
Ta=25 C
V
IN
Output Current(I
=-1.5V
IN
IN
Triple
I
=
=
IN
IN
eff
=-5V
I
=-5V
=-3V
OUT
10
Output Current(I
=-5.0V
2mA
)/Input Current(I
=4mA
10
=
Double
100K
Double I
10
20
20
I
4
OUT
I
R
OUT
f
OSC
OSC
Triple P
(mA)
(mA)
IN
( )
Triple
30
(Hz)
680K1M
30
OUT
eff
10
OUT
40
IN
OUT
Double
P
V
)
5
eff
)vs.
IN
OSC
OSC
=-1.5V
)
40
)vs.
OSC
50
)
)vs.
100
90
80
70
60
50
40
30
20
10
0
)
eff
10
10M
50
)
6
-8.000
-7.950
-7.900
-7.850
Fig.11 Output Voltage(V
Fig.2 Oscillation Frequency(f
10
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
Fig.8 Power Conversion Efficiency
-1
-2
-3
-4
-5
-6
0
9
8
–30
Fig.5 Output Voltage(V
-4
100
0
90
80
70
60
50
40
30
20
10
V
Ta=25 C
0
OUT
Current(I
Ta=25 C
V
Temperature(Ta)
0
1
IN
(P
=-5V
Ta=25 C
V
Output Current(I
1
Double
=-15V
0
Output Current(I
IN
eff
Triple I
2
Triple P
=-2.0V
)/Input Current(I
2
3
3
10
IN
OUT
I
eff
-3
4
OUT
4
I
OUT
50
(mA)
)
5
5
(mA)
I
Triple
OUT
Double P
Ta( C)
6
Double I
6
(A)
reg
7
OUT
7
OUT
V
)vs. Output
V
100
OUT
IN
V
8
IN
eff
10
IN
=-1.5V
IN
IN
)
8
)vs.
=-5V
)
-2
=-3V
OSC
9
)vs.
9 10
10
)vs.
40
36
32
28
24
20
16
12
8
4
0
150
10
-1
-3.000
-2.950
-2.900
-2.850
Fig.12 Output Voltage(V
Fig.3 Input Voltage(V
100
150
100
Fig.9 Power Conversion Efficiency
10
90
80
70
60
50
40
30
20
10
50
0
Fig.6 Output Inpedance(R
10
-4
0
400
300
200
100
I
I
I
I
3
OUT
OUT
OUT
OUT
V
SCI7661C
Ta=25 C
Current(I
(P
(f
0
Current Consumption(I
OUT
0
=
2mA
=
5mA
Ta=25 C
=10mA
=20mA
OSC
1
eff
Input Voltage(V
Ta=25 C
=-6V
)vs. Oscillation Frequency
1
)
2
10
2
10
OUT
4
-3
f
I
OSC
OUT
3
f
3
OSC
)
=40kHz
=30mA
I
(Hz)
OUT
V
Triple
V
4
IN
4
IN
IN
Double
(V)
(A)
(V)
reg
)vs. Booster
5
10
IN
f
f
OSC
)vs. Output
OSC
V
5
5
)
IN
10
6
=10kHz
=20kHz
=-5.0V
-2
opr1
OUT
OA
6
7
)
)vs.
10
7
/M
6
10
-1
OA