AAT1120 Advanced Analogic Technologies, Inc., AAT1120 Datasheet - Page 5

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

Typical Characteristics
1120.2007.01.1.0
100
100
100
90
80
70
60
50
40
90
80
70
60
50
40
90
80
70
60
50
40
0.1
0.1
0.1
V
IN
V
IN
= 3.6V
V
= 3.6V
IN
= 2.7V
V
IN
V
1
1
= 5.0V
IN
1
Efficiency vs. Load
Efficiency vs. Load
Efficiency vs. Load
(V
(V
(V
= 2.7V
V
OUT
OUT
OUT
Output Current (mA)
Output Current (mA)
Output Current (mA)
IN
= 4.2V
= 3.0V; L = 4.7µH)
= 1.8V; L = 3.3µH)
= 1.2V; L = 1.5µH)
V
V
IN
IN
= 3.6V
= 5.0V
10
10
10
V
IN
V
= 4.2V
IN
= 4.2V
100
100
100
1000
1000
1000
-0.2
-0.4
-0.6
-0.8
-1.0
1.0
0.8
0.6
0.4
0.2
0.0
-0.5
-1.5
-0.5
-1.0
-1.5
-2.0
2.0
1.5
1.0
0.5
0.0
1.5
0.5
-1
-2
2
1
0
0.1
0.1
0.1
V
IN
500mA Step-Down Converter
= 3.6V
V
IN
V
= 3.6V
IN
V
IN
= 2.7V
1
(V
1
1
(V
(V
Load Regulation
= 2.7V
Load Regulation
Load Regulation
OUT
Output Current (mA)
OUT
OUT
Output Current (mA)
Output Current (mA)
V
IN
= 3.0V; L = 4.7µH)
= 1.8V; L = 3.3µH)
= 1.2V; L = 1.5µH)
= 4.2V
10
V
10
10
IN
V
IN
= 4.2V
V
V
= 5.0V
IN
IN
V
= 5.0V
= 4.2V
IN
= 3.6V
AAT1120
100
100
100
1000
1000
1000
5