AAT1150 Ver la hoja de datos (PDF) - Analog Technology Inc
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AAT1150 Datasheet PDF : 16 Pages
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AAT1150
1MHz 1A Step-Down DC/DC Converter
Typical Characteristics
Output Voltage vs. Temperature
(IOUT = 900mA; VOUT = 1.5V)
1.0
0.6
0.2
VIN = 2.7V
-0.2
VIN = 3.6V
-0.6
-1.0
-20
0
20
40
60
80
100
Temperature (°C)
Line Regulation
(VOUT = 1.5V)
0.25
0.15
0.05
-0.05
IOUT = 1.0A
IOUT = 0.4A
-0.15
-0.25
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
Load Regulation
(VOUT = 1.5V; VIN = 3.6V)
0
-1
-2
-3
-4
-5
0
150
300
450
600
750
900
IOUT (mA)
Load Regulation
(VOUT = 3.3V; VIN = 5.0V)
0
-1
-2
-3
-4
-5
0
150
300
450
600
750
900
1050
Output Current (mA)
Efficiency vs. Input Voltage
(VOUT = 1.5V)
100
IO = 1A
90
80
IO = 0.4A
70
60
50
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
Loop Gain and Phase vs. Output Capacitor
(VIN = 3.6V; IOUT = 0.3A; CO = 22µF)
40
32
24
16
8
0
-8
-16
-24
-32
-40
10
Phase
4x
3x
2x
2x
Gain 3x
4x
100
Frequency (kHz)
225
180
135
90
45
0
-45
-90
-135
-180
-225
1000
6
1150.2005.03.1.2
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