AAT1147 AAT, AAT1147 Datasheet - Page 6

• Manufacturer Part Number: AAT1147
• Description: Step-Down Converter
• Manufacturer: AAT

Typical Characteristics
6
-0.1
-0.2
-0.3
-0.4
-0.5
0.5
0.4
0.3
0.2
0.1
0.0
-0.5
-1.0
-1.5
-2.0
-0.1
-0.2
-0.3
-0.4
-0.5
2.0
1.5
1.0
0.5
0.0
0.5
0.4
0.3
0.2
0.1
0
3.0
-40
3.0
Output Voltage Error vs. Temperature
I
OUT
I
OUT
3.2
= 10mA
-25
3.2
(V
= 10mA I
IN
3.4
= 3.6V; V
3.4
-10
Line Regulation
Line Regulation
3.6
I
3.6
OUT
Temperature (° ° C)
5
Input Voltage (V)
Input Voltage (V)
OUT
I
(V
(V
OUT
OUT
= 1mA
3.8
I
OUT
OUT
OUT
3.8
= 1mA
= 400mA
= 1.8V; I
20
= 3.3V)
= 400mA
= 1.8V)
4.0
4.0
35
4.2
4.2
OUT
50
= 400mA)
4.4
4.4
65
4.6
4.6
80
4.8
4.8
High Efficiency, Low Noise, Fast Transient
5.0
5.0
95
-12
-15
-0.1
-0.2
-0.3
-0.4
-0.5
-1.0
-2.0
-3.0
-4.0
15
12
0.5
0.4
0.3
0.2
0.1
0.0
-3
-6
-9
2.0
1.0
0.0
9
6
3
0
-40
2.5
3.0
Switching Frequency vs. Temperature
V
I
400mA Step-Down Converter
OUT
OUT
3.2
-25
= 10mA I
Frequency vs. Input Voltage
2.9
= 1.8V
3.4
-10
V
(V
OUT
3.3
Line Regulation
3.6
IN
OUT
I
= 2.5V
= 3.6V; V
OUT
5
Temperature (° ° C)
Input Voltage (V)
Input Voltage (V)
(V
= 1mA
3.8
OUT
= 400mA
3.7
20
= 2.5V)
4.0
OUT
V
35
OUT
4.1
= 1.8V)
4.2
= 3.3V
50
4.4
4.5
65
1147.2006.05.1.0
4.6
4.9
80
4.8
5.0
5.3
95