AAT1140 Datasheet, PDF (5/19 Pages) Advanced Analogic Technologies – Fast Transient 600mA Step-Down Converter

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Typical Characteristics
Efficiency vs. Load
(V_OUT = 3.3V; L = 6.8μH)
100
V_IN = 3.6V
90
V_IN = 4.2V
80
V_IN = 5.0V
70
60
50
0.1
1
10
100
1000
Output Current (mA)
Efficiency vs. Load
(V_OUT = 2.5V; L = 6.8μH)
100
V_IN = 2.7V
90
80
V_IN = 5.0V
V_IN = 4.2V
70
V_IN = 3.6V
60
50
0.1
1
10
100
1000
Output Current (mA)
Efficiency vs. Load
(V_OUT = 1.8V; L = 4.7μH)
100
V_IN = 2.7V
90
80
V_IN = 3.6V ^{VIN = 4.2V}
70
60
50
0.1
1
10
100
1000
Output Current (mA)
PRODUCT DATASHEET
AAT1140
Fast Transient 600mA Step-Down Converter
3.0
2.0
1.0
0.0
-1.0
-2.0
-3.0
0
DC Regulation
(V_OUT = 3.3V; L = 6.8µH)
V_IN = 4.2V
V_IN = 5.0V
V_IN = 5.5V
100
200
300
400
500
600
Output Current (mA)
DC Regulation
(V_OUT = 2.5V; L = 6.8µH)
3.0
2.0
1.0
V_IN = 5.0V
0.0
-1.0 _{VIN = 3.0V}
-2.0
V_IN = 3.6V
V_IN = 4.2V
-3.0
0
100
200
300
400
500
600
Output Current (mA)
3.0
2.0
1.0
0.0
-1.0
-2.0
-3.0
0
DC Regulation
(V_OUT = 1.8V; L = 4.7μH)
V_IN = 2.7V _{VIN = 3.6V}
V_IN = 4.2V
100
200
300
400
500
600
Output Current (mA)
1140.2007.12.1.1
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