AAT1123IJS-1.2-T1 Advanced Analog Technology, Inc., AAT1123IJS-1.2-T1 Datasheet - Page 7

• Manufacturer Part Number: AAT1123IJS-1.2-T1
• Description: 1MHz Step-Down Converter
• Manufacturer: Advanced Analog Technology, Inc.

Typical Characteristics
1123.2007.02.1.6
(30mA - 300mA; V
1.65
1.60
1.55
1.50
1.45
1.40
1.35
1.30
1.25
1.20
1.15
1.10
1.05
1.00
2.60
2.55
2.50
2.45
2.40
2.35
2.30
2.25
2.20
2.15
-100
-120
-20
-40
-60
-80
40
20
0
Load Transient Response
(V
IN
(V
= 3.6V; V
OUT
Line Transient
Time (25μs/div)
Time (25μ μ s/div)
IN
Output Ripple
Time (250ns/div)
300mA
= 2.5V @ 500mA)
= 3.6V; V
OUT
= 1.8V; 400mA)
OUT
30mA
= 1.5V; C1 = 22μ μ F)
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
1.5
1.3
1.1
0.9
0.7
0.5
0.3
0.1
-0.1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
-0.5
1.5
0.5
-1
2
1
0
2.5
(30mA - 300mA; V
-1.0
-2.0
-3.0
-4.0
4.0
3.0
2.0
1.0
0.0
2.65
2.55
2.45
2.35
2.25
2.15
2.05
3
(V
1MHz Step-Down Converter
Load Transient Response
IN
= 3.6V; V
I
OUT
3.5
Line Regulation
= 600mA
Time (50μs/div)
Time (25μs/div)
IN
Input Voltage (V)
Soft Start
300mA
= 3.6V; V
(V
OUT
OUT
4
= 1.5V; L = 4.7μ μ H)
= 1.5V)
I
OUT
OUT
4.5
30mA
= 10mA
= 2.5V; C1 = 22μ μ F)
I
OUT
5
AAT1123
= 100mA
5.5
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-0.5
1.5
1.3
1.1
0.9
0.7
0.5
0.3
0.1
-0.1
6
7