Characteristics Graph - Epson Power Supply IC S1F70000 Technical Manual

CHARACTERISTICS GRAPH

1000
Ta=25˚C
V
100
V =3V
DD
V
10
DD
1
10 100
(1) Oscillation frequency vs. External resistance
for oscillation
200
Ta=25˚C
C1=C2=2.2 F
C3=10 F
150
f =20kHz
OSC
100
f =10kHz
OSC
50
0
0 1 2
(3) Step-up circuit current consumption vs. Input
voltage
S1F70000 Series
Technical Manual
=5V
DD
=2V
1000 10000
f =40kHz
OSC
3 4 5 6
EPSON
30
28
26
24
V =5V
DD
22
20
18
16
14
12
V =2V
DD
10
-40 -20 0 20
Ta[˚C]
(2) Oscillation frequency vs. Temperature
20
18
3 times step-up
16
14
2 times step-up
12
10
8
6
4
Ta=25˚C
V =5V
DD
2
C1 to C4=10 F
0
0 10
(4) Output voltage (V ) vs. Output current 1
O
S1F76640 Series
V =3V
DD
40 60 80 100
4 times step-up
20 30
2–51