SC4603 Datasheet, PDF (6/16 Pages) Semtech Corporation – Very Low Input, MHz Operation, High Efficiency Synchronous Buck

SC4603
POWER MANAGEMENT
Typical Characteristics
Oscillator Internal Accuracy
vs
Input Voltage
600
595
590
585
TA = 25°C
580
2
2.5
3
3.5
4
4.5
5
5.5
Vcc (V)
Oscillator Internal Accuracy
vs
Temperature
602.0
600.0
Vcc = 3.3V
598.0
596.0
594.0
592.0
-40
-20
0
20
40
60
80
Temperature (°C)
Sense Voltage
vs
Input Voltage
501.0
500.5
500.0
499.5
499.0
498.5
498.0
497.5
TA = 25°C
2
2.5
3
3.5
4
4.5
5
5.5
Vcc (V)
Sense Voltage
vs
Temperature
501.0
500.5
500.0
499.5
499.0
Vcc = 3.3V
498.5
-40
-20
0
20
40
60
80
Temperature (°C)
Current Limit Bias Current
vs
Input Voltage
53
TA = 25°C
52
52
51
51
50
2
2.5
3
3.5
4
4.5
5
5.5
Vcc (V)
Current Limit Bias Current
vs
Temperature
60
58 ^{Vcc = 3.3V}
56
54
52
50
48
46
44
42
40
38
-40
-20
0
20
40
60
80
Temperature (°C)
 2004 Semtech Corp.
6
www.semtech.com