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S8351 Datasheet(PDF) 2 Page - Seiko Instruments Inc

Part # S8351
Description  STEP-UP, BUILT-IN / EXTERNAL FET PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER
PDF  51 Pages
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Manufacturer  SII [Seiko Instruments Inc]
Direct Link  http://www.sii.co.jp
Logo SII - Seiko Instruments Inc

S8351 Datasheet(HTML) 2 Page - Seiko Instruments Inc

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STEP-UP, BUILT-IN / EXTERNAL FET PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER
S-8351/8352 Series
Rev.3.0_01
2
Block Diagrams
1. S-8351 Series
(1) A Type (With shutdown function)
VSS
IC internal
power supply
VOUT
CONT
Protection
circuit
PFM
control
circuit
VREF
OFF
/
ON
+
−
Figure 1
(2) B and C Types (Without shutdown function, VDD / VOUT non-separate type)
VSS
VOUT
CONT
Protection
circuit
PFM
control
circuit
VREF
IC internal
power supply
+
−
Figure 2
(3) D Type (VDD / VOUT separate type)
IC internal power supply
VSS
VOUT
CONT
Protection
circuit
PFM
control
circuit
VREF
+
−
VDD
Figure 3



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