AAT1138 Datasheet, PDF (6/21 Pages) Skyworks Solutions Inc. – 2A Step-Down Converter with Adjustable Input Current Limit

DATA SHEET
AAT1138
2A Step-Down Converter with Adjustable Input Current Limit
Typical Characteristics
Step-Down Converter Feedback Voltage
vs. Temperature
(V_SYSOUT = 3.6V)
0.609
0.606
0.603
0.600
0.597
0.594
0.591
-40
-15
10
35
60
85
Temperature (°C)
Step-Down Converter Feedback Voltage
vs. Input Voltage
0.606
0.604
0.602
0.600
0.598
0.596
0.594
2.5 2.8 3.1 3.4 3.7 4.0 4.3 4.6 4.9 5.2 5.5
Input Voltage (V)
Step-Down Converter V_ENH and V_ENL
vs. Temperature
(V_SYSOUT = 3.6V)
0.52
0.48
VENH
VENL
0.44
0.40
0.36
0.32
-40
-15
10
35
60
85
Temperature (°C)
Step-Down Converter V_ENH and V_ENL
vs. Input Voltage
0.50
0.47
0.44
0.41
0.38
VENH
VENL
0.35
2.5 2.8 3.1 3.4 3.7 4.0 4.3 4.6 4.9 5.2 5.5
Input Voltage (V)
Frequency vs. Temperature
1.26
1.24
1.22
1.20
1.18
1.16
1.14
-40
-20
0
20
40
60
80
Temperature (°C)
Step-Down Converter EN Leakage
vs. Temperature
1.0
0.8
0.6
0.4
0.2
0.0
-40
-15
10
35
60
85
Temperature (°C)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
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201978B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 15, 2013