AAT1146 Analogic Corporation, AAT1146 Datasheet - Page 6

• Manufacturer Part Number: AAT1146
• Manufacturer: Analogic Corporation

Typical Characteristics
6
-1.0
-2.0
-3.0
-4.0
-1.0
-2.0
2.0
1.0
0.0
2.0
1.0
0.0
-1.0
-2.0
-3.0
-4.0
-5.0
-40
2.7
5.0
4.0
3.0
2.0
1.0
0.0
Output Voltage Error vs. Temperature
V
(V
OUT
V
EN
IN
-20
3.1
(V
Frequency vs. Input Voltage
= 1.8V
= 3.6V; V
V
IN
OUT
= 3.6V; V
= 2.5V
3.5
0
Time (100µ µ s/div)
Soft Start
I
OUT
V
L
Temperature (° ° C)
Input Voltage (V)
O
O
= 1.8V; I
3.9
20
= 1.8V; I
V
OUT
4.3
OUT
40
OUT
= 3.3V
= 400mA)
= 400mA)
4.7
60
5.1
80
Fast Transient 400mA Step-Down Converter
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-0.2
-0.4
100
5.5
-0.10
-0.20
-0.30
-0.40
No Load Quiescent Current vs. Input Voltage
-12.0
-15.0
0.40
0.30
0.20
0.10
0.00
15.0
12.0
-3.0
-6.0
-9.0
50
45
40
35
30
25
20
15
10
9.0
6.0
3.0
0.0
2.7
-40
2.5
Switching Frequency vs. Temperature
85°C
-40°C
I
OUT
3.1
-20
= 1mA
3.0
25°C
(V
3.5
3.5
Line Regulation
0
IN
Input Voltage (V)
= 3.6V; V
Temperature (° ° C)
Input Voltage (V)
I
(V
I
OUT
OUT
OUT
3.9
4.0
20
= 400mA
= 10mA
= 1.8V)
OUT
4.5
4.3
40
= 1.8V)
AAT1146
5.0
4.7
60
1146.2006.01.1.2
5.5
80
5.1
6.0
100
5.5