S-8520A20MC-AVFT2X Datasheet, PDF (34/44 Pages) Seiko Instruments Inc – SWITCHING REGULATOR CONTROLLER

STEP-DOWN, PWM CONTROL or PWM / PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8520/8521 Series
Rev.9.0_01
Table 12 External parts for Ripple data
Product name
S-8520D30MC
S-8521D30MC
S-8520B30MC
S-8521B30MC
S-8520F33MC
S-8521F33MC
S-8520D50MC
S-8521D50MC
S-8520B50MC
S-8521B50MC
S-8520F50MC
S-8521F50MC
Output voltage
Inductor
3.0 V
CD105 / 47 μH
3.3 V
CDH113 / 22 μH
5.0 V
CD105 / 47 μH
CDH113 / 22 μH
Transistor
2SA1213
IRF7606
2SA1213
IRF7606
Rb
680 Ω
−
−
680 Ω
−
−
Cb
2200 pF
−
−
2200 pF
−
−
Diode
MA720
Output capacitor
47 μF × 2
22 μF × 2
MA737
22 μF
MA720
47 μF × 2
22 μF × 2
MA737
22 μF
Table 13 Performance Data
Component
Inductor
Diode
Output capacity
External transistor
(Bipolar PNP)
External transistor
(MOS FET)
Maximum
Product name Manufacturer name “L” value DC resistance allowable Diameter
current
CD54
CD105
Sumida Corporation ^{47 μH}
0.37 Ω
0.17 Ω
0.72 A
1.28 A
5.8 mm
10.0 mm
CDH113
D62F
Toko Ink.
22 μH
0.09 Ω
0.25 Ω
1.44 A
0.70 A
11.0 mm
6.0 mm
MA720
MA737
F93
Matsushita Electric Forward current 500 mA (at VF = 0.55 V)
Industrial Co., Ltd. Forward current 1.5 A (at VF = 0.5 V)
Nichicon Corporation
−
TE
Matsushita Electric
Industrial Co., Ltd.
−
2SA1213
Toshiba Corporation
VCEO: 50 V max., IC: −2 A max., hFE: 120 to 240,
SOT-89-3 package
TM6201
Toyota Industries
Corporation
VGS: 12 V max., ID: −2 A max., Vth: －0.7 V min.,
Ciss: 320 pF typ., Ron: 0.25 Ω max. (VGS = −4.5 V),
SOT-89-3 package
IRF7606
International Rectifier
Corporation
VGS: 20 V max., ID: −2.4 A max., Vth: −1 V min.,
Ciss: 470 pF typ., Ron: 0.15 Ω max. (VGS = −4.5 V),
Micro 8 package
Height
4.5 mm
5.4 mm
3.7 mm
2.7 mm
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