AAT1147 AAT, AAT1147 Datasheet - Page 5

• Manufacturer Part Number: AAT1147
• Description: Step-Down Converter
• Manufacturer: AAT

Typical Characteristics
1147.2006.05.1.0
100
80
60
40
20
100
0
100
80
60
40
20
80
60
40
20
0
0
1
1
1
V
IN
= 3.0V
V
IN
= 3.6V
Efficiency vs. Load
Efficiency vs. Load
Efficiency vs. Load
V
(V
(V
(V
IN
V
OUT
OUT
OUT
Output Current (mA)
Output Current (mA)
Output Current (mA)
= 4.2V
10
IN
10
10
= 3.6V
V
= 3.3V; L = 6.8µH)
= 2.5V; L = 6.8µH)
= 1.8V; L = 4.7µH)
IN
V
= 5.0V
IN
= 3.6V
V
V
IN
IN
= 5.0V
= 4.2V
V
100
100
100
IN
= 4.2V
High Efficiency, Low Noise, Fast Transient
1000
1000
1000
-0.5
-1.0
-1.5
-2.0
-0.5
-1.0
-1.5
-2.0
-0.5
-1.0
-1.5
-2.0
2.0
1.5
1.0
0.5
0.0
2.0
1.5
1.0
0.5
0.0
2.0
1.5
1.0
0.5
0.0
0.1
0.1
0.1
400mA Step-Down Converter
1
1
1
DC Regulation
DC Regulation
DC Regulation
Output Current (mA)
Output Current (mA)
Output Current (mA)
(V
(V
(V
OUT
OUT
OUT
= 3.3V)
= 2.5V)
= 1.8V)
10
10
10
V
V
IN
IN
V
V
V
IN
= 3.6V
= 5.0V
IN
IN
V
= 3.6V
= 5.0V
= 3.6V
IN
100
100
100
= 3.0V
V
V
V
IN
IN
IN
= 4.2V
= 4.2V
= 4.2V
1000
1000
1000
5