SC1103 Semtech Corporation, SC1103 Datasheet - Page 4

• Manufacturer Part Number: SC1103
• Description: VOLTAGE MODE PWM CONTROLLER
• Manufacturer: Semtech Corporation

Fig.1: Error Amplifier, Gain and Phase
Fig. 3: V
Fig. 5: Efficiency @ V
© 2000 SEMTECH CORP.
PRELIMINARY - February 29, 2000
100%
-10
100.0E+0
90%
80%
70%
60%
50%
40%
40
35
30
25
20
15
10
-5
5
0
RIPPLE
0
@ V
1.0E+3
2
IN
4
= 12V, V
Output Current, (A)
10.0E+3
IN
Frequency (Hz)
= 12V
6
Gain
Phase
100.0E+3
O
8
= 3.3V, I
10
1.0E+6
O
12
= 10A
VOLTAGE MODE PWM CONTROLLER
10.0E+6
14
180
135
90
45
0
-45
1.8V
2.5V
3.3V
5V
Fig. 2: Load Regulation @ V
Fig. 4: Load Regulation @ V
Fig. 6: Line Regulation @ V
-0.1%
-0.2%
-0.3%
-0.4%
-0.5%
0.5%
0.4%
0.3%
0.2%
0.1%
0.0%
-0.010
-0.020
-0.2%
-0.4%
-0.6%
-0.8%
-1.0%
0.050
0.040
0.030
0.020
0.010
0.000
1.0%
0.8%
0.6%
0.4%
0.2%
0.0%
11.4
652 MITCHELL ROAD NEWBURY PARK CA
0
0
11.6
2
2
4
Output Current, (A)
11.8
Input Voltage, (V)
6
4
Current (Amps)
O
O
12.0
IN
= 3.3V, I
8
= 3.3V, V
= 12V
6
10
12.2
O
= 10A
IN
12
= 12V
8
12.4
SC1103
14
Vo=
10
1.8V
2.5V
3.3V
5.0V
12.6
4