S-8355 Seiko Instruments, S-8355 Datasheet - Page 38

• Manufacturer Part Number: S-8355
• Description: (S-8355 - S-8358) PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR
• Manufacturer: Seiko Instruments

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Caution The above connection diagram and constant will not guarantee successful operation. Perform through
38
STEP-UP, SUPER-SMALL PACKAGE, 600 kHz, PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8355/56/57/58 Series
3. Using Ceramic Capacitor Example
Condition
When using small R
corresponding
R
The following example shows a circuit using R
characteristics.
1
2
3
1
evaluation using the actual application to set the constant.
differs depending on “L” value, the capacitance, the wiring, and the application (output load).
V
IN
S-8357N33
S-8357F33
S-8358B50
to
C
IC
IN
the
ESR
R
parts such as ceramic capacitors for the output capacitance, mount a resistor (R
ESR
L
CDRH6D28-220
CDRH6D28-470
CDRH6D28-100
Figure 27 Using Ceramic Capacitor Circuit Example
TR
L Type Name
in
series
Seiko Instruments Inc.
with
TR Type Name
1
EXT
= 100 mΩ, output voltage = 3.3 V, output load = 500 mA and its
Table 31
FDN335N
FDN335N
FDN335N
the
ceramic
SD
VSS
SD Type Name
VOUT
capacitor
M1FH3
M1FH3
M1FH3
(C
L
)
SD Type Name
10 µ F × 2
10 µ F × 2
10 µ F × 2
as
R
C
shown
1
L
in
Rev.6.6
100 m Ω
100 m Ω
100 m Ω
V
Figure
OUT
R
1
_00
27 .
1
)