s-8333aaca-t8t1g Seiko Instruments Inc., s-8333aaca-t8t1g Datasheet - Page 18

• Manufacturer Part Number: s-8333aaca-t8t1g
• Description: Step-up, For Lcd Bias Supply, 1-channel, Pwm Control Switching Regulator Controller
• Manufacturer: Seiko Instruments Inc.

18
STEP-UP, FOR LCD BIAS SUPPLY, 1-CHANNEL, PWM CONTROL SWITCHING REGULATOR CONTROLLER
S-8333 Series
Standard Circuit
Caution
C
IN
L
The above connection diagram and constant will not guarantee successful operation.
Perform thorough evaluation using the actual application to set the constant.
0.1 µF
M1
EXT
VIN
VSS
Timer latch
short-circuit
protection circuit
CSP
UVLO
PWM
comparator
Figure 15 Standard Circuit
Seiko Instruments Inc.
RDuty
+
−
CC
SD
Oscillator
Maximum duty
soft-start circuit
CZ
RZ
Ground point
Reference voltage
(1.0 V)
soft-start circuit
+
−
Error amplifier
ROSC
FB
CFB
RFB1
RFB2
C
L
V
OUT
Rev.2.3
ROSC RDuty
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