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AAT1153 Datasheet, PDF (5/19 Pages) Advanced Analogic Technologies – 2A Step-Down Converter
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Typical Characteristics
Efficiency vs. Output Current
(VOUT = 3.3V, TA = 25°C, L = 2.2µH, CIN = COUT = 22µF)
100
90
80
70
60
50
40
30
20
10
0
0.1
VIN = 4.2V
VIN = 3.7V
VIN = 5.5V
VIN = 5.0V
1
10
100
1000
10000
Output Current (mA)
Efficiency vs. Output Current
(VOUT = 1.8V, TA = 25°C, L = 2.2µH, CIN = COUT = 22µF)
100
90
VIN = 4.2V
80
VIN = 3.6V
70 VIN = 2.5V
60
50
VIN = 5.5V
VIN = 5.0V
40
30
20
10
0
0.1
1
10
100
1000
10000
Output Current (mA)
Efficiency vs. Output Current
(VOUT = 1.5V, TA = 25°C, L = 2.2µH, CIN = COUT = 22µF)
100
90
VIN = 4.2V
80
70
VIN = 3.6V
60 VIN = 2.5V
50
VIN = 5.5V
40
30
VIN = 5.0V
20
10
0
0.1
1
10
100
1000
10000
Output Current (mA)
DATA SHEET
AAT1153
2A Step-Down Converter
DC Regulation
(VOUT = 3.3V, TA = 25°C, L = 2.2µH, CIN = COUT = 22µF)
3.399
3.366
3.333
VIN = 5.5V VIN = 5.0V
3.300
3.267
VIN = 3.7V
VIN = 4.2V
3.234
3.201
0
200 400 600 800 1000 1200 1400 1600 1800 2000
Output Current (mA)
DC Regulation
(VOUT = 1.8V, TA = 25°C, L = 2.2µH, CIN = COUT = 22µF)
1.854
1.836
1.818
1.800
VIN = 4.2V VIN = 5.0V
VIN = 5.5V
1.782
1.764
VIN = 3.6V
VIN = 2.5V
1.746
0
200 400 600 800 1000 1200 1400 1600 1800 2000
Output Current (mA)
DC Regulation
(VOUT = 1.5V, TA = 25°C, L = 2.2µH, CIN = COUT = 22µF)
1.545
1.530
1.515 VIN = 4.2V
1.500
VIN = 5.0V
VIN = 5.5V
1.485
1.470
VIN = 3.6V
VIN = 2.5V
1.455
0
200 400 600 800 1000 1200 1400 1600 1800 2000
Output Current (mA)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201992B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 18, 2013
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