AAT1120 Advanced Analogic Technologies, Inc., AAT1120 Datasheet - Page 6

• Manufacturer Part Number: AAT1120
• Description: Aat1120 | 500ma Step-down Converter
• Manufacturer: Advanced Analogic Technologies, Inc.

Typical Characteristics
6
-1.0
-2.0
-3.0
-4.0
-1.0
-2.0
-3.0
2.0
1.0
0.0
3.0
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
Frequency Variation vs. Input Voltage
V
V
OUT
EN
(V
-20
3.1
(V
IN
= 1.8V
IN
= 3.6V; V
= 3.6V; V
3.5
Time (100µs/div)
0
Soft Start
Temperature (° ° C)
Input Voltage (V)
OUT
V
OUT
I
O
LX
20
3.9
V
= 1.8V; I
OUT
= 1.8V; 500mA)
= 3.0V
4.3
40
OUT
= 500mA)
4.7
60
5.1
80
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
No Load Quiescent Current vs. Input Voltage
-10.0
-0.10
-0.20
-0.30
10.0
-2.0
-4.0
-6.0
-8.0
0.30
0.20
0.10
0.00
8.0
6.0
4.0
2.0
0.0
50
45
40
35
30
25
20
15
10
2.7
-40
2.5
-40°C
85°C
25°C
500mA Step-Down Converter
Switching Frequency Variation
3.1
-20
3.0
I
OUT
(V
3.5
vs. Temperature
3.5
0
IN
Line Regulation
= 250mA
= 3.6V; V
Temperature (° ° C)
Input Voltage (V)
Input Voltage (V)
(V
I
OUT
OUT
3.9
20
4.0
= 50mA
= 1.8V)
I
OUT
OUT
4.3
= 150mA
40
4.5
= 1.8V)
I
OUT
AAT1120
= 10mA
60
4.7
5.0
1120.2007.01.1.0
I
OUT
80
5.1
5.5
= 0mA
100
5.5
6.0