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參數(shù)資料
| 型號(hào)： | LOW-COST |
| 英文描述： | Low-Cost PWM Controller (110k) |
| 中文描述： | 低成本PWM控制器（11萬(wàn)） |
| 文件頁(yè)數(shù)： | 6/7頁(yè) |
| 文件大?。?/td> | 110K |
| 代理商： | LOW-COST |
AN99-5
LOW COST PWM CONTROLLER
2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
January 13, 2000
6
Fig. 3: V
RIPPLE
@ V
IN
= 12V, V
O
= 3.3V, I
O
= 10A
Fig. 2: Load Regulation @ V
O
= 3.3V, V
IN
= 12V
-10
100.0E+0
-5
0
5
10
15
20
25
30
35
40
1.0E+3
10.0E+3
100.0E+3
1.0E+6
10.0E+6
Frequency (Hz)
G
-45
0
45
90
135
180
P
Gain
Phase
Fig.1: Error Amplifier, Gain and Phase
Fig. 6: Line Regulation @ V
O
= 3.3V, I
O
= 10A
Fig. 5: Efficiency
@ V
IN
= 12V
Fig. 4: Load Regulation
@ V
IN
= 12V
-0.020
-0.010
0.000
0.010
0.020
0.030
0.040
0.050
0
2
4
6
8
10
Current (Amps)
V
N
-1.0%
-0.8%
-0.6%
-0.4%
-0.2%
0.0%
0.2%
0.4%
0.6%
0.8%
1.0%
0
2
4
6
8
10
12
14
Output Current, (A)
L
1.8V
2.5V
3.3V
5.0V
Vo=
40%
50%
60%
70%
80%
90%
100%
0
2
4
6
8
10
12
14
Output Current, (A)
E
1.8V
2.5V
3.3V
5V
-0.5%
-0.4%
-0.3%
-0.2%
-0.1%
0.0%
0.1%
0.2%
0.3%
0.4%
0.5%
11.4
11.6
11.8
12.0
12.2
12.4
12.6
Input Voltage, (V)
L
TYPICAL PLOTS & WAVEFORMS
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