AAT1154(2003) 데이터 시트보기 (PDF) - Analog Technology Inc
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AAT1154 Datasheet PDF : 16 Pages
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Typical Characteristics
Inrush and Output Overshoot Characteristic
No Load
14
12 Inductor Current
10
8
6
4 Input
2
0
Output
-2
0
0.4
0.8
1.2
1.6
Time (millisec)
6
4
2
0
-2
-4
-6
-8
-10
2
Output Ripple
IOUT = 3.0A, VOUT = 3.3V, VIN = 5.0V
4
7
2
6
0
5
-2
4
-4
3
-6
2
-8
1
200 uF 6.3V Ceramic
-10 TDK P/N C3325X5R0J107M
0
-12
-1
0
1
2
3
4
5
Time (µsec)
Loop Crossover Gain and Phase
16
12
8
4
0
3x 100µF
-4
2x 100µF
-8
100µF 6.3V Ceramic
-12 TDK P/N C3225X5R0J107M
-16
10000
Frequency (Hz)
180
135
Phase
90
45
0
-45
-90
-135
-180
100000
1154.2003.08.0.91
AAT1154
1MHz 3A Buck DC/DC Converter
Output Ripple
IOUT = 3.0A, VOUT = 3.3V, VIN = 5.0V
4
7
2
6
0
5
-2
4
-4
3
-6
2
-8
1
300 µF 6.3VCeramic
-10 TDK P/N C3325X5R0J107M
0
-12
-1
0
1
2
3
4
5
Time (µsec)
Tantalum Output Ripple
IOUT = 3.0A, VOUT = 3.3V, VIN = 5.0V
40
7
20
6
0
5
-20
4
-40
3
-60
2
-80
1
120 µF 6.3V Tantalum Vishay
-100 P/N 594D127X96R3C2T
0
-120
-1
0
1
2
3
4
5
Time (µsec)
Loop Crossover Gain and Phase
16
12
8
4
0
-4
-8
-12
-16
10000
180
120 µF 6.3V Tantalum
Vishay P/N 594D127X96R3C2T 135
90
Phase
45
0
Gain
-45
-90
-135
Frequency (Hz)
-180
100000
7
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