S-8333CAAA-I8T1U Datasheet, PDF (19/44 Pages) Seiko Instruments Inc – PWM CONTROL SWITCHING REGULATOR CONTROLLER

STEP-UP, FOR LCD BIAS SUPPLY, 1-CHANNEL, PWM CONTROL SWITCHING REGULATOR CONTROLLER
Rev.4.2_01
S-8333 Series
 Standard Circuit
L
VIN
M1
C_IN
EXT
0.1 μF
SD
RDuty
ROSC
V_OUT
UVLO
+
PWM ^−
comparator
Timer latch
short-circuit
protection circuit
Oscillator
Maximum duty
soft-start circuit
+ _{Error amplifier}
−
Reference voltage
(1.0 V)
soft-start circuit
CFB RFB1
C_L
FB
RFB2
ROSC RDuty
VSS
CSP
CC
RZ
CZ
Ground point
Figure 15 Standard Circuit
Caution
The above connection diagram and constant will not guarantee successful operation.
Perform thorough evaluation using the actual application to set the constant.
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