AAT1157 데이터 시트보기 (PDF) - Analog Technology Inc
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AAT1157 Datasheet PDF : 14 Pages
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AAT1157
1MHz 1.2A Buck DC/DC Converter
Typical Characteristics
No Load Supply Current vs. Input Voltage
300
85°C
250
200
150
-40°C
100
25°C
50
0
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
2.0
1.0
0.0
-1.0
-2.0
-3.0
-4.0
1
DC Regulation
(VOUT = 2.5V)
VIN = 3.6V
VIN = 3.0V
VIN = 3.3V
10
100
1000
Output Current (mA)
10000
P-Channel RDSON vs. Input Voltage
200
180
160
100°C 120°C
140
120
100
80
85°C 25°C
60
40
20
0
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
N-Channel RDSON vs. Input Voltage
200
180
160
100°C 120°C
140
120
100
80
85°C 25°C
60
40
20
0
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
Output Voltage vs. Temperature
(VIN = 3.6V; VOUT = 2.5V; IOUT = 1.0A)
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
-40
-20
0
20
40
60
80
100
Temperature (°C)
Frequency vs. Input Voltage
(VOUT = 1.8V)
1.3
1.28
1.26
1.24
1.22
1.2
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
1157.2005.11.1.4
5
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