AAT1152 Просмотр технического описания (PDF) - Advanced Analogic Technologies
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AAT1152 Datasheet PDF : 17 Pages
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AAT1152
850kHz 1A Buck DC/DC Converter
Typical Characteristics
Oscillator Frequency Variation vs. Temperature
(VIN = 3.6V)
10
6
2
-2
-6
-10
-20
0
20
40
60
80
100
Temperature (°C)
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 (A)
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)
6
1152.2006.09.1.7
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