AAT1149 Analogic Corporation, AAT1149 Datasheet - Page 6

• Manufacturer Part Number: AAT1149
• Manufacturer: Analogic Corporation

Typical Characteristics
6
Switching Frequency Variation vs. Temperature
-10
10
-0.2
-0.4
-0.6
-0.8
-0.2
-0.4
-0.6
-0.8
-2
-4
-6
-8
0.8
0.6
0.4
0.2
8
6
4
2
0
0.8
0.6
0.4
0.2
-1
-1
1
0
-40
1
0
2.5
2.5
1mA
300mA
-20
600mA
3
3
0mA
0
Line Regulation
Line Regulation
3.5
3.5
Temperature (° ° C)
Input Voltage (V)
Input Voltage (V)
(V
20
(V
OUT
OUT
4
= 1.1V)
= 3V)
40
1mA
4
4.5
600mA
60
4.5
100mA
5
80
400mA
5
5.5
400mA
100
0mA
120
5.5
6
-0.2
-0.4
-0.6
-0.8
0.8
0.6
0.4
0.2
-1.0
-2.0
-1
2.0
1.0
0.0
1
0
4.50
4.25
4.00
3.75
3.50
3.25
3.00
2.75
2.50
(V
2.5
-40
OUT
Output Voltage Error vs. Temperature
600mA
400mA Step-Down Converter
= 1.8; 400mA Load; No Feedforward Capacitor)
400mA
-20
3
(V
IN
= 3.6V; V
Line Regulation
3.5
0
Line Transient
Input Voltage (V)
(V
Temperature (° ° C)
3MHz Fast Transient
Time (50µs/div)
OUT
O
4
20
= 1.8V; I
= 1.8V)
4.5
40
OUT
0mA
= 400mA)
5
60
100mA
1149.2006.11.1.0
5.5
80
1.90
1.88
1.86
1.84
1.82
1.80
1.78
1.76
1.74
6
100