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AAT1138IRN-0.6-T1 Datasheet(PDF) 5 Page - Skyworks Solutions Inc.

Part # AAT1138IRN-0.6-T1
Description  2A Step-Down Converter with Adjustable Input Current Limit
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Manufacturer  SKYWORKS [Skyworks Solutions Inc.]
Direct Link  http://www.skyworksinc.com
Logo SKYWORKS - Skyworks Solutions Inc.

AAT1138IRN-0.6-T1 Datasheet(HTML) 5 Page - Skyworks Solutions Inc.

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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201978B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 15, 2013
AAT1138
2A Step-Down Converter with Adjustable Input Current Limit
DATA SHEET
5
Typical Characteristics
Step-Down Converter Efficiency
(VOUT = 1.8V; L = 22μH; COUT = CSYSOUT = 22μF)
Output Current (mA)
0.1
1
10
100
1000
10000
0
10
20
30
40
50
60
70
80
90
100
VSYSOUT = 2.5V
VSYSOUT = 3.0V
VSYSOUT = 3.6V
VSYSOUT = 4.2V
VSYSOUT = 5.0V
VSYSOUT = 5.5V
Step-Down Converter Efficiency
(VOUT = 3.3V; L = 22μH; COUT = CSYSOUT = 22μF)
Output Current (mA)
0.1
1
10
100
1000
10000
0
10
20
30
40
50
60
70
80
90
100
VSYSOUT = 3.6V
VSYSOUT = 3.7V
VSYSOUT = 4.2V
VSYSOUT = 4.5V
VSYSOUT = 5.0V
VSYSOUT = 5.5V
Step-Down Converter Load Regulation
(VOUT = 1.8V; L = 22μH; COUT = CSYSOUT = 22μF)
Output Current (mA)
0.1
400
800
1200
1600
2000
-1.2
-0.8
-0.4
0.0
0.4
0.8
1.2
VSYSOUT = 2.5V
VSYSOUT = 3.0V
VSYSOUT = 3.6V
VSYSOUT = 4.2V
VSYSOUT = 5.0V
VSYSOUT = 5.5V
Step-Down Converter Load Regulation
(VOUT = 3.3V; L = 22μH; COUT = CSYSOUT = 22μF)
Output Current (mA)
0
400
800
1200
1600
2000
-1.2
-0.8
-0.4
0.0
0.4
0.8
1.2
VSYSOUT = 3.7V
VSYSOUT = 4.2V
VSYSOUT = 4.5V
VSYSOUT = 5.0V
VSYSOUT = 5.5V
Step-Down Converter Line Regulation
vs. Input Voltage
(VOUT = 1.8V)
Input Voltage (V)
2.5
3.1
3.7
4.3
4.9
5.5
-0.3
-0.2
-0.1
0.0
0.1
0.2
0.3
0.4
ILOAD = 1mA
ILOAD = 0.5A
ILOAD = 1A
ILOAD = 1.5A
ILOAD = 2A


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