S-8520 Seiko Instruments, S-8520 Datasheet - Page 31

• Manufacturer Part Number: S-8520
• Description: (S-8520 / S-8521) PWM Control and PFM Control Step DOwn Switching Regulator Controllers
• Manufacturer: Seiko Instruments

Rev.7.4
2. Ripple Voltage Characteristics(L:CD105/47µ µ µ µ F, Tr:2SA1213, SBD:MA720)
(20)
(22)
(24)
Vrip−V
S-8520D30MC(C
Vrip−V
S-8520B30MC(C
Vrip−V
S-8520F33MC(C
_10
Vrip
Vrip
(mV)
(mV)
(mV)
PWM Control & PWM/PFM Control Step-Down Switching Regulator-Controllers
Vrip
IN
IN
IN
240
200
160
120
240
200
160
120
240
200
160
120
80
40
80
40
80
40
0
0
0
2
2
2
OUT
OUT
OUT
:22 µF)
:47 µF×2)
:22 µF×2)
4
4
4
6
6
6
I
I
I
I
I
I
I
I
I
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
=500 mA
=500 mA
=100 mA
=100 mA
=0.1 mA
=500 mA
=100 mA
=0.1 mA
=0.1 mA
8
8
8
V
V
V
IN
IN
IN
(V)
(V)
(V)
10
10
10
Seiko Instruments Inc.
12
12
12
14
14
14
(21)
(23)
(25)
16
16
16
Vrip−V
S-8521D30MC(Cout:47 µF×2)
Vrip−V
S-8521B30MC(C
Vrip−V
S-8521F33MC(C
(mV)
(mV)
(mV)
Vrip
Vrip
Vrip
IN
IN
IN
240
200
160
120
240
200
160
120
240
200
160
120
80
40
80
40
80
40
0
0
0
2
2
2
OUT
OUT
:22 µF×2)
:22 µF)
4
4
4
6
6
6
I
I
I
I
I
I
I
OUT
I
I
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
=100 mA
=500 mA
=0.1 mA
=500 mA
=100 mA
=100 mA
=500 mA
=0.1 mA
=0.1 mA
8
8
8
V
V
V
IN
IN
IN
(V)
(V)
(V)
S-8520/8521 Series
10
10
10
12
12
12
14
14
14
16
16
16
31