sc1109acstrt Semtech Corporation, sc1109acstrt Datasheet - Page 13

• Manufacturer Part Number: sc1109acstrt
• Description: Sc1109 Synchronous Pwm Controller With Dual Low-dropout Regulator Controllers
• Manufacturer: Semtech Corporation

POWER MANAGEMENT
Typical Characteristics
2004 Semtech Corp.
7.90
7.85
7.80
7.75
7.70
7.65
7.60
7.55
7.50
7.45
7.40
9.32
9.30
9.28
9.26
9.24
9.22
9.20
9.18
9.16
9.14
9.30
9.28
9.26
9.24
9.22
9.20
9.18
9.16
9.14
9.12
9.10
9.08
0
0
0
Typical Soft start source Current Vss = 0V
Typical Soft start sink Current Vss = 0V
SC1109 Soft start Source Current vs Ta
Vcc = 5.25
Vcc = 4.75
SC1109 Soft start Sink Current vs Ta
10
Vcc = 5.25V , Vss = 0V
Vcc = 4.75V , Vss = 0V
10
Vcc = 5.25V , Vss = 0V
Vcc = 4.75V , Vss = 0V
10
Typical Icc (Switching section)
20
20
SC1109 Quiescent Current vs Ta
20
30
30
30
Ta (°C.)
Ta (°C.)
Ta (°C.)
40
40
40
50
50
50
60
60
60
70
70
70
13
Typical Soft start source Current Vss = 1.5V
Typical Soft start sink Current Vss = 1.5V
8.10
8.08
8.06
8.04
8.02
8.00
7.98
7.96
7.94
1.80
1.79
1.79
1.78
1.78
1.77
1.77
4.45
4.40
4.35
4.30
4.25
4.20
4.15
4.10
4.05
4.00
3.95
0
0
0
Typical ISTBYQ (Linear section)
SC1109 Quiescent Current (Linear) vs Ta
Vcc = 5.25
Vcc = 4.75
SC1109 Soft start Source Current vs Ta
Vcc = 4.75V , Vss = 1.5V
Vcc = 5.25V , Vss = 1.5V
SC1109 Soft start Sink Current vs Ta
10
10
10
20
20
20
30
30
30
Ta (°C.)
Ta (°C.)
Ta (°C)
Vcc = 4.75V , Vss = 1.5V
Vcc = 5.25V , Vss = 1.5V
40
40
40
50
50
50
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SC1109
60
60
60
70
70
70