S-8333CAAA-I8T1U Datasheet, PDF (8/44 Pages) Seiko Instruments Inc – PWM CONTROL SWITCHING REGULATOR CONTROLLER

STEP-UP, FOR LCD BIAS SUPPLY, 1-CHANNEL, PWM CONTROL SWITCHING REGULATOR CONTROLLER
S-8333 Series
Rev.4.2_01
 External Parts When Measuring Electrical Characteristics
Table 5 External Parts
Element Name
Inductor
Diode
Output capacitor
Transistor
Oscillation frequency setting resistor
Maximum duty ratio setting resistor
Short-circuit protection delay time
setting capacitor
Output voltage setting resistor 1
Output voltage setting resistor 2
FB pin capacitor
Phase compensation resistor
Phase compensation capacitor
Symbol
L
SD
CL
M1
ROSC
RDuty
CSP
RFB1
RFB2
CFB
RZ
CZ
Manufacturer
TDK Corporation
Rohm Co., Ltd.
⎯
Sanyo Electric Co., Ltd.
⎯
⎯
Part Number
LDR655312T 10 μH
RB491D
Ceramic 10 μF
MCH3406
200 kΩ (when fOSC = 650 kHz)
300 kΩ (when MaxDuty = 73%)
⎯
0.1 μF (when tPRO = 50 ms)
⎯
8.2 kΩ (when VOUT = 9.2 V)
⎯
1.0 kΩ (when VOUT = 9.2 V)
⎯
180 pF
⎯
200 kΩ
⎯
0.01 μF
8