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SC1109 Datasheet(PDF) 13 Page - Semtech Corporation

Part No. SC1109
Description  Synchronous PWM Controller with Dual Low Dropout Regulator Controllers
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Maker  SEMTECH [Semtech Corporation]
Homepage  http://www.semtech.com
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SC1109 Datasheet(HTML) 13 Page - Semtech Corporation

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 2004 Semtech Corp.
www.semtech.com
POWER MANAGEMENT
SC1109
Typical Characteristics
Typical Icc (Switching section)
Typical Soft start source Current Vss = 0V
Typical Soft start sink Current Vss = 0V
Typical Soft start sink Current Vss = 1.5V
Typical Soft start source Current Vss = 1.5V
Typical ISTBYQ (Linear section)
SC1109 Quiescent Current vs Ta
7.40
7.45
7.50
7.55
7.60
7.65
7.70
7.75
7.80
7.85
7.90
0
10
20304050
6070
Ta(°C.)
Vcc = 5.25
Vcc = 4.75
SC1109 Soft start Source Current vs Ta
9.14
9.16
9.18
9.20
9.22
9.24
9.26
9.28
9.30
9.32
0
102030
40506070
Ta (°C.)
Vcc = 5.25V , Vss = 0V
Vcc = 4.75V , Vss = 0V
SC1109 Soft start Sink Current vs Ta
9.08
9.10
9.12
9.14
9.16
9.18
9.20
9.22
9.24
9.26
9.28
9.30
0
102030
40506070
Ta (°C.)
Vcc = 5.25V , Vss = 0V
Vcc = 4.75V , Vss = 0V
SC1109 Quiescent Current (Linear) vs Ta
3.95
4.00
4.05
4.10
4.15
4.20
4.25
4.30
4.35
4.40
4.45
0
10203040506070
Ta (°C.)
Vcc = 5.25
Vcc = 4.75
SC1109 Soft start Source Current vs Ta
7.94
7.96
7.98
8.00
8.02
8.04
8.06
8.08
8.10
0
102030
40506070
Ta (°C)
Vcc = 4.75V , Vss = 1.5V
Vcc = 5.25V , Vss = 1.5V
SC1109 Soft start Sink Current vs Ta
1.77
1.77
1.78
1.78
1.79
1.79
1.80
0
102030
40506070
Ta (°C.)
Vcc = 4.75V , Vss = 1.5V
Vcc = 5.25V , Vss = 1.5V


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