S-8520 Seiko Instruments, S-8520 Datasheet - Page 26

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

PWM Control & PWM/PFM Control Step-Down Switching Regulator-Controllers
S-8520/8521 Series
26
Inductor
Diode
Output Capacity
External Transistor
(Bipolar PNP)
External Transistor
(MOS FET)
Component
(20)
(21)
(22)
(23)
(24)
(25)
(26)
(27)
(28)
(29)
(30)
(31)
No.
S-8520D30MC
S-8521D30MC
S-8520B30MC
S-8521B30MC
S-8520F33MC
S-8521F33MC
S-8520D50MC
S-8521D50MC
S-8520B50MC
S-8521B50MC
S-8520F50MC
S-8521F50MC
Product Name
2SA1213Y
Product
CDH113
IRF7606
TM6201
CD105
MA720
MA737
Name
CD54
D62F
F93
TE
Loom Works, Ltd.
Toyota Automatic
Sumida Electric
Manufacturer's
International
Corporation
Corporation
Corporation
Electronics
Electronics
Matsushita
Matsushita
Seiko Instruments Inc.
Co., Ltd
Nichicon
Rectifier
Toshiba
Name
Toko
Voltage
Output
↑
↑
↑
(V)
Table 3 Performance Data
3.0
3.3
5.0
↑
↑
↑
↑
↑
↑
↑
↑
↑
Table 2 Ripple Data
CDH113/22
CDH113/22
Forward current 500 mA (When V
Forward current 1.5 A (When V
V
SOT-89-3 PKG
V
R
V
R
L-Value
CD105/47
CD105/47
CEO
GS
on
GS
on
Inductor
(
(µH)
µH)
47
22
0.25
0.15
↑
↑
12 V max. , I
20 V max. , I
↑
↑
↑
↑
↑
↑
↑
↑
50 V max. , I
Ω
Ω
Resistance
max.(Vgs=−4.5 V), SOT-89-3 PKG
max.(Vgs=−4.5 V), Micro 8 PKG
2SA1213Y
2SA1213Y
Transistor
0.37
0.17
0.09
0.25
IRF7606
IRF7606
DC
(Ω)
C
↑
↑
↑
↑
↑
↑
↑
↑
D
D
−2A max., h
−2 A max. , V
−2.4 A max. , V
Allowable
680
680
Current
(Ω)
Rb
↑
↑
↑
−
−
↑
↑
↑
−
−
Max.
0.72
1.28
1.44
0.70
(A)
FE
F
= 0.5 V)
120 to 240
F
= 0.55 V)
th
2200
2200
(pF)
−0.7 V min. , C
Cb
th
↑
↑
↑
↑
↑
↑
−
−
−
−
−1 V min. C
(mm)
10.0
11.0
Dia.
5.8
6.0
MA720
MA737
MA720
MA737
Diode
↑
↑
↑
↑
↑
↑
↑
↑
Rev.7.4
iss
iss
Height
470 pF typ.
320 pF typ.
(mm)
Capacitor
4.5
5.4
3.7
2.7
Output
22 ×2
47 ×2
22 ×2
47×2
(µF)
22
22
↑
↑
↑
↑
↑
↑
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