S-8533 Datasheet, PDF (22/31 Pages) Seiko Instruments Inc – STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER

STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER
S-8533 Series
Rev.2.3_00
External Parts List for Ripple Data
Table 5 External Parts for Input Voltage vs. Ripple Voltage Characteristics Data
Output
No. Product Name
Voltage
Inductor
(27) S-8533A15AFT 1.5 V CDRH104R/22 μH
(28)
(29) S-8533A33AFT 3.3 V
(30)
(31)
(32)
(33) S-8533A50AFT 5.0 V
(34)
Transistor
P-channel
CPH6303
Si3441DV
CPH6303
Si3441DV
CPH6302
Si3455DV
CPH6302
Si3455DV
Transistor
N-channel
CPH6403
Si3442DV
CPH6403
Si3442DV
CPH6402
Si3454DV
CPH6402
Si3454DV
Output
Capacitor
47 μF × 2
Input
Capacitor
47 μF, 0.1 μF
Application Condition
I_OUT ≤ 2 A, V_IN ≤ 8 V
I_OUT ≤ 1.4 A, V_IN ≤ 6 V
I_OUT ≤ 2 A, V_IN ≤ 8 V
I_OUT ≤ 1.4 A, V_IN ≤ 6 V
I_OUT ≤ 2 A, V_IN ≤ 16 V
I_OUT ≤ 1.6 A, V_IN ≤ 16 V
I_OUT ≤ 2 A, V_IN ≤ 16 V
I_OUT ≤ 1.6 A, V_IN ≤ 16 V
Performance Data for Parts
The following shows the performance of external parts.
Table 6 Performance of External Parts
Parts
Product
Name
Manufacturer
Characteristics
Inductor
Sumida
CDRH125 ^Corporation
L Value
10 μH
DC Resistance ^Maximum
Current
0.019 Ω
4.0 A
Diameter
Height
12.0 mm typ.
12.3 mm max. ^{8.0 mm max.}
CDRH104R
47 μH
22 μH
10 μH
0.095 Ω
0.054 Ω
0.026 Ω
1.9 A
2.5 A
3.8 A
10.2 mm typ.
10.5 mm max.
4.0 mm max.
Diode
Matsushita Electric
MA737 _{Industrial Co., Ltd} Forward current 1.5 A (@V_F = 0.5 V)
Output
Capacity
Nichicon
F93
Corporation
External
transistor
(P-channel
CPH6303
Sanyo
Electric Co., Ltd
V_GS = 10 V max., I_D = −4 A max., V_th = −0.4 V min.,
C_iss = 820 pF typ., R_DS(ON) = 0.090 Ω max. (V_GS = −4 V),
CPH6 package
FET)
CPH6302
V_GS = 20 V max., I_D = −3 A max., V_th = −1.0 V min.,
C_iss = 300 pF typ., R_DS(ON) = 0.145 Ω max. (V_GS = −10 V),
CPH6 package
Si3441DV ^Vishay
Silliconix
Si3455DV
External
transistor
(N-channel
CPH6403
Sanyo
Electric Co., Ltd
V_GS = 8 V max., I_D = −3.3 A max., V_th = −0.45 V min.,
R_DS(ON) = 0.10 Ω max. (V_GS = −4.5 V), TSOP-6 package
V_GS = 20 V max., I_D = −3.5 A max., V_th = −1.0 V min.,
R_DS(ON) = 0.100 Ω max. (V_GS = −10 V), TSOP-6 package
V_GS = 10 V max., I_D = 6 A max., V_th = 0.4 V min.,
C_iss = 700 pF typ., R_DS(ON) = 0.038 Ω max. (V_GS= 4 V),
CPH6 package
FET)
CPH6402
V_GS = 24 V max., I_D = 4 A max., V_th = 1.0 V min.,
C_iss = 240 pF typ., R_DS(ON) = 0.75 Ω max. (V_GS= 10 V),
CPH6 package
Caution
Si3442DV ^Vishay
Silliconix
V_GS = 8 V max., I_D = 4.0 A max., V_th = 0.6 V min.,
R_DS(ON) = 0.07 Ω max. (V_GS = 4.5 V), TSOP-6 package
Si3454DV
V_GS = 20 V max., I_D = 4.2 A max., V_th = 1.0 V min.,
R_DS(ON) = 0.065 Ω max. (V_GS = 10 V), TSOP-6 package
The value of each characteristic in Table 6 depends on the materials prepared by each manufacturer,
however, confirm the specifications by referring to respective materials when using any of the above.
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Seiko Instruments Inc.