Power Supply User Manual

S1F76640 Series
S1F70000 Series EPSON 2–53
Technical Manual
S1F76640
Series
100
90
80
70
60
50
40
30
20
10
0
Peff[%]
150
120
90
60
30
0
I
DD
[mA]
I
DD
[mA]
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
Peff[%]
I
O
[mA]
0102030
I
O
[mA]
0 5 10 15 20
Ta=25˚C
V DD =5V
C 1 to C 4 =10µF
Ta=25˚C
V DD =3V
C 1 to C 4 =10µF
2 times step-up Peff
4 times step-up Peff
3 times step-up Peff
2 times
step-up I DD
3 times step-up I DD
4 times step-up I DD
2 times step-up Peff
4 times step-up Peff
3 times step-up Peff
2 times
step-up I DD
3 times
step-up I DD
4 times step-up I DD
100
90
80
70
60
50
40
30
20
10
0
Peff[%]
100
90
80
70
60
50
40
30
20
10
0
Peff[%]
50
40
30
20
10
0
I
DD
[mA]
I
O
[mA]
f
OSC
[kHz]
012345678 109
10 10001001
Ta=25˚C
V DD =2V
C 1 to C 4 =10µF
Ta=25˚C
V DD =5V
C 1 to C 4 =10µF
I O =2mA
I O =5mA
I O =10mA
I O =20mA
2 times step-up Peff
4 times step-up Peff
3 times step-up Peff
3 times
step-up I DD
2 times step-up I DD
4 times step-up I DD
(9) Step-up power conversion efficiency vs.
Output current 1
Input current vs. Output current 1
(10) Step-up power conversion efficiency vs.
Output current 2
Input current vs. Output current 2
(11) Step-up power conversion efficiency vs. Output current 3
Input current vs. Output current 3
(12) Step-up power conversion efficiency - Os vs.illation
frequency 1