AAT1153 Datasheet, PDF (7/19 Pages) Advanced Analogic Technologies – 2A Step-Down Converter

Typical Characteristics
P-Channel R_DS(ON) vs. Input Voltage
200
180
85°C
160
25°C
140
120
-40°C
100
80
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
Switching Frequency vs. Temperature
(V_IN = 3.6V; V_OUT = 1.8V)
1.4
1.3
1.2
1.1
1.0
-40
-20
0
20
40
60
Temperature (°C)
80
100
Soft Start
(V_IN = 3.6V; V_OUT = 1.8V; I_OUT = 2A; C_FF = 22pF)
6
4
2
0
-2
1.4
1.0
0.6
0.2
-0.2
Time (400µs/div)
DATA SHEET
AAT1153
2A Step-Down Converter
N-Channel R_DS(ON) vs. Input Voltage
150
130
85°C
110
25°C
90
70 -40°C
50
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
Reference Voltage vs. Temperature
(V_IN = 3.6V)
0.609
0.607
0.605
0.603
0.601
0.599
0.597
0.595
0.593
0.591
-40
-20
0
20
40
60
Temperature (°C)
80
100
Load Transient Response
(V_IN = 3.6V; V_OUT = 1.8V; L = 2.2µH; C_IN = C_OUT = 22µF)
2.2
2.0
1.8
1.6
2A
2.6
2.2
1.8
1.4
200mA
1.0
0.6
0.2
-0.2
Time (400µs/div)
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201992B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 18, 2013
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