S-8353 Seiko Instruments, S-8353 Datasheet - Page 22

• 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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22
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
(3) S-8353DxxMC, S-8353JxxMC, S-8354DxxMC, S-8354JxxMC
Remark The power supply for the IC chip is from the VOUT pin.
Caution
The Above connection diagram will not guarantee successful operation.
evaluation using the actual application to set the constant.
V
IN
+
−
C
IN
L
CONT
Soft start built-in
reference power
supply
Seiko Instruments Inc.
Oscillation circuit
PWM control circuit
or PWM / PFM
switching control
circuit
SD
Figure 15
VDD
Phase
compensating
circuit
IC internal
power
supply
+
−
VOUT
VSS
C
C
Perform through
R
R
A
B
Rev.1.4
+
−
C
L
_00