AAT1146 Datasheet, PDF (5/20 Pages) Advanced Analogic Technologies – Fast Transient 400mA Step-Down Converter

Typical Characteristics
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)
DATA SHEET
AAT1146
Fast Transient 400mA Step-Down Converter
1.0
0.5
0.0
-0.5
-1.0
0.1
DC Regulation
(V_OUT = 1.8V)
V_IN = 4.2V
V_IN = 3.6V
V_IN = 2.7V
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)
1.0
0.5
0.0
-0.5
-1.0
0.1
DC Regulation
(V_OUT = 2.5V)
V_IN = 4.2V
V_IN = 5.0V
V_IN = 3.6V
V_IN = 3.0V
1
10
100
1000
Output Current (mA)
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 = 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)
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201985B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 18, 2013
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