AAT2500M Datasheet, PDF (8/22 Pages) Advanced Analogic Technologies – 400mA Step-Down Converter and 300mA LDO

AAT2500M
400mA Step-Down Converter and 300mA LDO
Typical Characteristics
Step-Down Converter Output
Voltage Error vs. Temperature
(V_IN = 5V; V_OUT = 1.8V; I_OUT = 400mA)
1.0
0.5
0.0
-0.5
-1.0
-50
-25
0
25
50
Temperature (°C)
75
100
Step-Down Converter Output
Voltage Error vs. Temperature
(V_IN = 5V; V_OUT = 1.2V; I_OUT = 400mA)
1.0
0.5
0.0
-0.5
-1.0
-50
-25
0
25
50
Temperature (°C)
75
100
Step-Down Converter P-Channel
R_DS(ON)H vs. Input Voltage
700
120°C
100°C
600
85°C
500
400
25°C
300
2.5
3
3.5
4
4.5
5
5.5
6
Input Voltage (V)
Step-Down Converter N-Channel
R_DS(ON)L vs. Input Voltage
500
120°C
400
100°C _85°C
300
200
25°C
100
2.5
3
3.5
4
4.5
5
5.5
6
Input Voltage (V)
Step-Down Converter Soft Start
(V_IN = 5V; V_OUT = 1.8V; I_OUT = 400mA; C_FF = Open)
6
4
2
0
-2
0.4
0.2
0.0
-0.2
Time (50µs/div)
8
2500M.2007.06.1.0