PRODUCT DATASHEET
AAT1
161
SwitchReg
TM
Typical Characteristics
Efficiency vs. Load Current
(V
OUT
= 5V)
100
90
80
100
90
80
13.2V Input, 3A Step-Down Converter
Efficiency vs. Load Current
(V
OUT
= 3.3V)
Efficiency (%)
Efficiency (%)
70
60
50
40
30
20
10
0
0.0001
0.001
0.01
0.1
70
60
50
40
30
20
10
0
0.0001
V
IN
= 6V
V
IN
= 7V
V
IN
= 10V
V
IN
= 12V
V
IN
= 13.2V
1
10
V
IN
= 5V
V
IN
= 7V
V
IN
= 10V
V
IN
= 12V
V
IN
= 13.2V
0.001
0.01
0.1
1
10
Load Current (A)
Load Current (A)
Load Regulation
(V
OUT
= 5V)
Output Voltage Difference (%)
Output Voltage Difference (%)
1
0.75
0.5
0.25
0
-0.25
-0.5
-0.75
-1
0.0001
0.001
0.01
0.1
1.5
1.25
1
0.75
0.5
0.25
0
-0.25
-0.5
0.0001
0.001
Load Regulation
(V
OUT
= 3.3V)
V
IN
= 13.2V
V
IN
= 12V
V
IN
= 10V
V
IN
= 7V
V
IN
= 6V
V
IN
= 13.2V
V
IN
= 12V
V
IN
= 10V
V
IN
= 7V
V
IN
= 6V
1
10
0.01
0.1
1
10
Load Current (A)
Load Current (A)
Line Regulation
(V
OUT
= 5V)
Output Voltage Difference (%)
Output Voltage Difference (%)
1
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
6
7
8
9
10
11
12
Line Regulation
(V
OUT
= 3.3V)
1
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
5
6
7
8
9
10
3A
1.5A
1A
100mA
10mA
3A
1.5A
1A
100mA
10mA
11
12
Input Voltage (V)
Input Voltage (V)
1161.2008.03.1.0
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