AAT2138 Datasheet, PDF (7/18 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
No Load Quiescent Current vs Input Voltage
(Open Loop)
120
110
100
90
80
70
85°C
60
25°C
50
-40°C
40
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
No Load Quiescent Current vs Temperature
(Open Loop, V_SYSIN = 5V)
120
110
100
90
80
70
60
50
-40
-15
10
35
60
85
Temperature (°C)
No Load Quiescent Current vs Input Voltage
(Close Loop, V_OUT = 3.4V)
18
15
12
9
6
85°C
3
25°C
-40°C
0
3.7
4
4.3
4.6
4.9
5.2
5.5
Input Voltage (V)
No Load Quiescent Current vs Temperature
(Close Loop, V_SYSIN = 5V, V_OUT = 3.4V)
16
14
12
10
8
-40
-15
10
35
60
85
Temperature (°C)
Step-Down Converter P-Channel R_DS(ON) vs
Input Voltage
130
85°C
112
25°C
94
-40°C
76
58
40
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
Step-Down Converter N-Channel R_DS(ON) vs
Input Voltage
80
85°C
70
25°C
60
-40°C
50
40
30
20
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
202006C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 18, 2013
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