AAT2138 Datasheet, PDF (6/18 Pages) Skyworks Solutions Inc. – High Current Step-Down Converter with High-Precision Programmable Current Limited Load Switch

DATA SHEET
AAT2138
High Current Step-Down Converter
with High-Precision Programmable Current Limited Load Switch
Typical Characteristics
Step-Down Converter Line Regulation
(V_OUT = 3.8V)
1.2
1
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
-1.2
1mA
100mA
500mA
1000mA
1500mA
2000mA
2500mA
4.2
4.4
4.6
4.8
5
5.2
5.4
Input Voltage (V)
Frequency vs Temperature
2.9
2.85
2.8
2.75
2.7
2.65
2.6
-40
-15
10
35
60
85
Temperature(°C)
Feedback Voltage vs Temperature
0.609
0.606
0.603
0.600
0.597
0.594
0.591
-40
-15
10
35
60
85
Temperature (ºC)
Feedback Voltage vs Input Voltage
0.609
0.606
0.603
0.600
0.597
0.594
0.591
3.1
3.4
3.7
4.0
4.3
4.6
4.9
5.2
5.5
Input Voltage (V)
Step-Down Converter Enable Threshold vs
Input Voltage
1.2
1.1
1
0.9
0.8
0.7
0.6
3.8
V_ENH
V_ENL
4 4.2 4.4 4.6 4.8
5 5.2 5.4 5.6
Input Voltage (V)
Step-Down Converter Enable Threshold vs
Temperature
1.2
1.1
1
0.9
0.8
0.7
0.6
-40
V_ENH
V_ENL
-15
10
35
60
85
Temperature (°C)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
6
202006C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 18, 2013