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S8337 Datasheet(PDF) 2 Page - Seiko Instruments Inc

Part # S8337
Description  STEP-UP, 1.2 MHz HIGH-FREQUENCY, PWM CONTROL 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

S8337 Datasheet(HTML) 2 Page - Seiko Instruments Inc

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STEP-UP, 1.2 MHz HIGH-FREQUENCY, PWM CONTROL SWITCHING REGULATOR CONTROLLER
S-8337/8338 Series
Rev.4.0_01
2
Block Diagram
PWM
comparator
VOUT
Timer latch
short-circuit
protection circuit
RDuty (S-8337) or
ON/OFF (S-8338)
RFB2
VSS
RFB1
FB
SD
L
VIN
EXT
UVLO
CSP
CC
RZ CZ
ROSC
M1
CFB
+
−
+
−
Oscillator
Maximum duty circuit
Reference voltage
(1.0 V) soft-start
circuit
Error amplifier
CIN
CL
Figure 1 Block Diagram



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