AAT1121 データシートの表示（PDF） - Advanced Analogic Technologies
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AAT1121 Datasheet PDF : 20 Pages
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Typical Characteristics
Efficiency vs. Load
(VOUT = 1.2V; L = 1.5µH)
100
90
VIN = 2.7V
80 VIN = 3.6V
70
60
VIN = 4.2V
50
VIN = 5.0V
40
30
0.1
1
10
100
Output Current (mA)
AAT1121
1.5MHz, 250mA Step-Down Converter
1000
1.0
0.5
0.0
-0.5
-1.0
0.1
DC Load Regulation
(VOUT = 1.2V; L = 1.5µH)
VIN = 3.6V
VIN = 2.7V VIN = 4.2V
1
10
100
1000
Output Current (mA)
Efficiency vs. Load
(VOUT = 1.8V; L = 3.3µH)
100
VIN = 2.7V
90
VIN = 3.6V
80
70
60
VIN = 4.2V
50
40
0.1
1
10
100
1000
Output Current (mA)
DC Load Regulation
(VOUT = 1.8V; L = 3.3µH)
1.0
0.5
VIN = 3.6V
0.0
VIN = 2.7V
-0.5
VIN = 4.2V
-1.0
0.1
1
10
100
1000
Output Current (mA)
Efficiency vs. Load
(VOUT = 3.0V; L = 4.7µH)
100
90 VIN = 3.6V
80
VIN = 4.2V
70
VIN = 5.0V
60
50
40
0.1
1
10
100
1000
Output Current (mA)
1.0
0.5
0.0
-0.5
-1.0
0.1
DC Load Regulation
(VOUT = 3.0V; L = 4.7µH)
VIN = 4.2V VIN = 3.6V
VIN = 5.0V
1
10
100
1000
Output Current (mA)
1121.2007.03.1.2
5
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