AAT1112 Datasheet, PDF (6/19 Pages) Advanced Analogic Technologies – 1.5A, 1.4MHz Step-Down Converter

Typical Characteristics
Efficiency vs. Output Current
(PWM Mode; V_OUT = 2.5V)
100
90
80
V_IN = 2.7V
70
60
50
V_IN = 5.0V
40
30
V_IN = 4.2V
20
10
V_IN = 3.6V
0
1
10
100
1000
Output Current (mA)
10000
Efficiency vs. Output Current
(PFM Mode; V_OUT = 1.8V)
100
90 ^{VIN = 2.7V}
80
70
V_IN = 4.2V
V_IN = 3.6V
60
50
40
0.1
1
10
100
1000
Output Current (mA)
10000
100
90
80
70
60
50
40
30
20
10
0
1
Efficiency vs. Output Current
(PWM Mode; V_OUT = 1.8V)
V_IN = 2.7V
V_IN = 4.2V
V_IN = 3.6V
10
100
1000
Output Current (mA)
10000
DATA SHEET
AAT1112
1.5A, 1.4MHz Step-Down Converter
Load Regulation
(PWM Mode; V_OUT = 2.5V)
0.50
0.25 ^{VIN = 2.7V}
V_IN = 3.6V
V_IN = 5.0V
0.00
-0.25
V_IN = 4.2V
-0.50
0.1
1
10
100
1000
Output Current (mA)
10000
0.50
0.25
0.00
-0.25
-0.50
0.1
Load Regulation
(PFM Mode; V_OUT = 1.8V)
V_IN = 3.6V
V_IN = 2.7V
V_IN = 4.2V
1
10
100
1000
Output Current (mA)
0.50
0.25
0.00
-0.25
-0.50
0.1
Load Regulation
(PWM Mode; V_OUT = 1.8V)
V_IN = 2.7V
V_IN = 3.6V
V_IN = 4.2V
1
10
100
1000
Output Current (mA)
10000
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201972B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 15, 2013