AAT1123 Datasheet, PDF (6/18 Pages) Advanced Analogic Technologies – 1MHz Step-Down Converter

Typical Characteristics
Frequency vs. Input Voltage
(V_OUT = 1.8V)
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
Switching Frequency vs. Temperature
(V_IN = 3.6V; V_O = 1.5V)
0.20
0.10
0.00
-0.10
-0.20
-40
-20
0
20
40
60
80
100
Temperature (°C)
P-Channel R_DS(ON) vs. Input Voltage
750
700
650
120°C 100°C
600
550
500
85°C
450
25°C
400
350
300
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Input Voltage (V)
DATA SHEET
AAT1123
1MHz Step-Down Converter
Output Voltage Error vs. Temperature
(V_IN = 3.6V; V_O = 2.5V)
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
-40
-20
0
20
40
60
80
100
Temperature (°C)
Quiescent Current vs. Input Voltage
(V_O = 1.8V)
35
85°C
30
25°C
25
20
-40°C
15
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Input Voltage (V)
N-Channel R_DS(ON) vs. Input Voltage
750
700
650
120°C _100°C
600
550
500
450
85°C
400
25°C
350
300
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Input Voltage (V)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
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201975B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 15, 2013