Epson – Epson Power Supply S1F70000 User Manual
Page 36
S1F76620 Series
S1F70000 Series
EPSON
1–19
Technical Manual
S1F76620
Series
(9) Step-up power conversion efficiency vs.
Output current 1
Input current vs. Output current 1
(11) Step-up power conversion efficiency vs.
Output current 3
Input current vs. Output current 3
.
(12) Step-up power conversion efficiency vs.
Oscillation frequency 1
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
0
5
10
15
20
I
O
[mA]
P
eff[%]
I
DD
[mA]
Ta=25
°
C
V
DD
=3V
C
1
=C
2
=10
µ
F
100
90
80
70
60
50
40
30
20
10
0
150
120
90
60
30
0
0
10
20
30
I
O
[mA]
P
eff[%]
I
DD
[mA]
Ta=25
°
C
V
DD
=5V
C
1
=C
2
=10
µ
F
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
50
40
30
20
10
0
1
10
100
1000
0 1 2 3 4 5 6 7 8 9 10
I
O
=5mA
I
O
=2mA
I
O
=20mA
I
O
=10mA
focs[kHz]
I
O
[mA]
P
eff[%]
P
eff[%]
I
DD
[mA]
Ta=25
°
C
V
DD
=5V
C
1
=C
2
=10
µ
F
Ta=25
°
C
V
DD
=5V
C1=C2=10
µ
F
(10) Step-up power conversion efficiency vs.
Output current 2
Input current vs. Output current 2