AAT1154(2003) Ver la hoja de datos (PDF) - Analog Technology Inc
Número de pieza
componentes Descripción
Fabricante
AAT1154 Datasheet PDF : 16 Pages
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Typical Characteristics
Line Regulation
VOUT=3.3V
1
0
IO = 0.3A
-1
-2
-3
IO = 3.0A
-4
-5
3
3.5
4
4.5
5
5.5
6
Input Voltage (V)
AAT1154
1MHz 3A Buck DC/DC Converter
Over Temp Current vs. Input Voltage
VOUT = 3.3V
3.6
3.4
70°C
3.2
3
2.8
85°C
2.6
2.4
2.2 100°C
2
3.5
3.75
4
4.25
4.5
4.75
5
5.25
5.5
Input Voltage (V)
Load Regulation
VIN = 5.0V, VIN = 3.3V
0.0
-1.0
-2.0
-3.0
-4.0
-5.0
-6.0
-7.0
-8.0
-9.0
-10.0
0.01
0.1
1
10
Load Current (A)
Non-Switching Operating Current vs. Temperature
FB = 0V
0.8
VIN = 5.5V VIN = 5.0V
0.7
0.6
VIN = 4.2V
0.5
VIN = 3.6V
VIN = 2.7V
0.4
-20
0
20
40
60
80
100
120
Temperature (°C)
Over Temp Shutdown Current vs. Temperature
VOUT = 3.3V, VIN = 5.0V, L = 1.5µH
6
5.5
5
4.5
4
3.5
3
2.5
2
10 20
30 40
50 60
70 80
90 100
Temperature (°C)
Inrush and Output Overshoot Characteristic
3A Load
14
Inductor Current
12
10
8
6
Input
4
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
6
1154.2003.08.0.91
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