AAT1150 Advanced Analogic Technologies, AAT1150 Datasheet - Page 6

• Manufacturer Part Number: AAT1150
• Description: 1MHz 1A Step-Down DC/DC Converter
• Manufacturer: Advanced Analogic Technologies

Typical Characteristics
6
-0.2
-0.6
-1.0
-5
-2
-3
-4
-1
100
1.0
0.6
0.2
0
90
80
60
70
50
0
-20
2.5
Output Voltage vs. Temperature
150
0
3
Efficiency vs. Input Voltage
(I
OUT
(V
Load Regulation
300
OUT
20
Input Voltage (V)
= 900mA; V
3.5
Temperature (°C)
= 1.5V; V
(V
I
OUT
OUT
I
450
O
V
(mA)
40
= 0.4A
= 1.5V)
IN
4
= 3.6V
IN
OUT
I
= 3.6V)
O
= 1.5V)
600
= 1A
60
4.5
V
750
IN
80
= 2.7V
5
900
100
5.5
1MHz 1A Step-Down DC/DC Converter
-0.05
-0.15
-0.25
0.25
0.05
-2
-3
-4
0.15
-5
-24
-32
-40
-1
Loop Gain and Phase vs. Output Capacitor
-16
0
40
32
24
16
-8
8
0
0
10
2.5
150
(V
IN
3
= 3.6V; I
I
300
OUT
(V
Frequency (kHz)
Load Regulation
Gain
OUT
Output Current (mA)
I
OUT
= 0.4A
3.5
Line Regulation
= 3.3V; V
Input Voltage (V)
OUT
= 1.0A
450
2x
(V
100
= 0.3A; C
4x
3x
OUT
4x
4
= 1.5V)
600
IN
3x
= 5.0V)
Phase
O
2x
= 22µF)
AAT1150
750
4.5
1150.2005.03.1.2
900
5
1000
225
180
135
90
45
0
-45
-90
-135
-180
-225
1050
5.5