AAT3183 Datasheet, PDF (5/16 Pages) Advanced Analogic Technologies – 300mA Inductorless Step-Down Converter

AAT3183
300mA Inductorless Step-Down Converter
Typical Characteristics
Efficiency vs. Output Current
(V_OUT = 1.5V)
90
80
V_IN = 3.6V
70 V_IN = 4.2V
60
50
40
30
V_IN = 5.5V V_IN = 5.0V
20
10
0
0.1
1
10
100
1000
Output Current (mA)
1.5
1
0.5
0
-0.5
-1
-1.5
-2
-2.5
-3
0.1
Output Error vs. Output Current
(V_OUT = 1.5V)
V_IN = 5.5V
V_IN = 5.0V
V_IN = 4.2V
V_IN = 3.6V
1
10
100
1000
Output Current (mA)
Output Voltage Error vs. Temperature
(V_IN = 3.6V; V_OUT = 1.5V; I_OUT = 150mA)
8.0
6.0
4.0
2.0
0.0
-2.0
-4.0
-6.0
-8.0
-40 -25 -10 5
20 35 50 65 80 95
Temperature (°C)
Efficiency vs. Input Voltage
(V_OUT = 1.5V)
100
90
50mA
80
70 _300mA
60
50
40
30
20
10
0
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
Output Error vs. Input Voltage
(V_OUT = 1.5V)
2
.001mA _10mA
0
-2
50mA
-4
150mA
-6
-8
-10
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
No Load Quiescent Current vs. Input Voltage
(V_OUT = 1.5V; No Load)
100
90
80
70
60
25°C
85°C
50
40
30
20
10
-40°C
0
3.2
3.7
4.2
4.7
5.2
Input Voltage (V)
3183.2007.07.1.2
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