AAT1157 AAT, AAT1157 Datasheet - Page 6

• Manufacturer Part Number: AAT1157
• Description: DC/DC Converter
• Manufacturer: AAT

Typical Characteristics
6
-10.0
4.4
4.2
4.0
3.8
3.6
3.4
3.2
3.0
2.8
-2.0
-4.0
-6.0
-8.0
6.0
4.0
2.0
0.0
(V
OUT
= 2.5V; I
(I
OUT
Line Transient
Time (250µ µ s/div)
Time (25µ µ s/div)
Soft Start
= 1.2A; V
OUT
= 1.2A; V
O
= 2.5V)
IN
= 3.6V)
0.24
0.20
0.16
0.12
0.08
0.04
0.00
-0.04
-0.08
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-0.5
1MHz 1.2A Buck DC/DC Converter
-0.01
-0.04
-0.07
-0.10
-0.13
-0.16
0.08
0.05
0.02
-0.01
-0.02
-0.03
-0.04
-0.05
-0.06
0.02
0.01
0
(400mA-1.2A; V
(V
Load Transient Response
OUT
= 2.5V; I
Output Ripple
Time (500ns/div)
1.2A
Time (20µ µ s/div)
OUT
IN
= 1.2A; V
= 3.3V; V
400mA
IN
OUT
= 3.6V)
AAT1157
= 2.5V)
1157.2005.11.1.4
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
3
2.5
2
1.5
1
0.5
0