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Lista de partido
AAT1112
1.5A, 1.4MHz Step-Down Converter
Analog Technology Inc
AAT1112 Datasheet PDF : 20 Pages
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AAT1112
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
Load Regulation
(PWM Mode; V
OUT
= 2.5V)
0.50
0.25
V
IN
= 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
Efficiency vs. Output Current
(PFM Mode; V
OUT
= 1.8V)
100
90
V
IN
= 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
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)
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
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
6
1112.2007.01.1.1
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