S-8353 Seiko Instruments, S-8353 Datasheet - Page 24

• Manufacturer Part Number: S-8353
• Description: (S-8353 / S-8354) PWM Control Switchable Built-in Transistor Switching Regulator
• Manufacturer: Seiko Instruments

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24
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Application Circuits
1. Using Ceramic Capacitor Example
When using small R
corresponding to the R
R
The following example shows a circuit using R
characteristics.
Caution The Above connection diagram and constant will not guarantee successful operation. Perform
1
differs depending on L value, the capacitance, the wiring, and the application (output load).
S-8353A33
IC
through evaluation using the actual application to set the constant.
V
IN
C
ESR
ESR
CDRH5D28-101
IN
L Type Name
in series with the ceramic capacitor (C
parts such as ceramic capacitors for the output capacitance, mount a resistor (R
Figure 16 Using Ceramic Capacitor Circuit Example
L
CONT
Seiko Instruments Inc.
SD Type Name
1
MA2Z748
= 100 mΩ, output voltage = 3.3 V, output load = 100 mA and its
Table 18
SD
VSS
L
VOUT
) as shown in Figure 16 .
(Ceramic capacitor)
10 µF × 2
C
L
R
C
1
L
V
Rev.1.4
100 mΩ
OUT
R
1
_00
1
)