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S8353 Datasheet(PDF) 22 Page - Seiko Instruments Inc

Part # S8353
Description  STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
PDF  49 Pages
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Manufacturer  SII [Seiko Instruments Inc]
Direct Link  http://www.sii.co.jp
Logo SII - Seiko Instruments Inc

S8353 Datasheet(HTML) 22 Page - Seiko Instruments Inc

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STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.0_01
22
Standard Circuits
(1) S-8353AxxMA / UA, S-8353CxxMA, S-8353HxxMA/UA, S-8354AxxMA/UA, S-8354CxxMA, S-8354HxxMA / UA
CL
SD
VIN
L
VOUT
VSS
PWM control circuit
or PWM / PFM
switching control
circuit
Phase
compensating
circuit
CIN
CONT
Oscillation circuit
Soft start built-in
reference power
supply
+
−
+
−
IC internal
power
supply
+
−
Remark
The power supply for the IC chip is from the VOUT pin.
Figure 13
(2) S-8353AxxMC, S-8353HxxMC, S-8354AxxMC, S-8354HxxMC
PWM control circuit
or PWM / PFM
switching control
circuit
Phase
compensating
circuit
Oscillation circuit
SD
VIN
L
VOUT
VSS
CIN
CL
CONT
OFF
/
ON
Soft start built-in
reference power
supply
+
−
IC internal
power
supply
+
−
+
−
Remark
The power supply for the IC chip is from the VOUT pin.
Figure 14



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