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S8333 Datasheet(PDF) 32 Page - Seiko Instruments Inc

Part # S8333
Description  STEP-UP, FOR LCD BIAS SUPPLY, 1-CHANNEL, PWM CONTROL SWITCHING REGULATOR CONTROLLER
PDF  44 Pages
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Manufacturer  SII [Seiko Instruments Inc]
Direct Link  http://www.sii.co.jp
Logo SII - Seiko Instruments Inc

S8333 Datasheet(HTML) 32 Page - Seiko Instruments Inc

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STEP-UP, FOR LCD BIAS SUPPLY, 1-CHANNEL, PWM CONTROL SWITCHING REGULATOR CONTROLLER
S-8333 Series
Rev.4.2_01
32
2. 3 VOUT
= 6.1 V (RFB1 = 5.1 kΩ, RFB2 = 1.0 kΩ)
(1) fOSC
= 1080 kHz, MaxDuty = 73% (ROSC = 120 kΩ, RDuty = 180 kΩ)
(a) IOUT vs.
η
(b) IOUT vs. VOUT
0.01
1
10
100
1000
100
90
80
70
60
50
40
30
20
10
0
IOUT [mA]
0.1
VIN = 3.3 V
VIN = 2.5 V
0.01
1
10
100
1000
6.20
6.15
6.10
6.05
6.00
5.95
5.90
IOUT [mA]
0.1
VIN = 3.3 V
VIN = 2.5 V
(2) fOSC
= 650 kHz, MaxDuty = 73% (ROSC = 200 kΩ, RDuty = 300 kΩ)
(a) IOUT vs.
η
(b) IOUT vs. VOUT
0.01
1
10
100
1000
100
90
80
70
60
50
40
30
20
10
0
IOUT [mA]
0.1
VIN = 3.3 V
VIN = 2.5 V
0.01
1
10
100
1000
6.20
6.15
6.10
6.05
6.00
5.95
5.90
IOUT [mA]
0.1
VIN = 3.3 V
VIN = 2.5 V
(3) fOSC
= 280 kHz, MaxDuty = 73% (ROSC = 470 kΩ, RDuty = 750 kΩ)
(a) IOUT vs.
η
(b) IOUT vs. VOUT
0.01
1
10
100
1000
100
90
80
70
60
50
40
30
20
10
0
IOUT [mA]
0.1
VIN = 3.3 V
VIN = 2.5 V
0.01
1
10
100
1000
6.20
6.15
6.10
6.05
6.00
5.95
5.90
IOUT [mA]
0.1
VIN = 3.3 V
VIN = 2.5 V



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