AAT1152 Advanced Analogic Technologies, AAT1152 Datasheet - Page 6

• Manufacturer Part Number: AAT1152
• Description: 850kHz 1A Synchronous Buck DC/DC Converter
• Manufacturer: Advanced Analogic Technologies

Typical Characteristics
6
-0.2
-0.6
-1.0
-5
1.0
0.6
0.2
-2
-3
-4
-1
100
0
90
80
60
70
50
-20
0
2.5
Output Voltage vs. Temperature
150
0
3
Efficiency vs. Input Voltage
I
OUT
V
Load Regulation
OUT
300
=900mA, V
20
Input Voltage (V)
3.5
Temperature ( C)
= 1.5V, V
I
OUT
V
OUT
I
450
O
V
40
(mA)
IN
= 0.4A
4
=1.5V
= 3.6V
OUT
I
IN
O
=3.6V
= 1A
600
=1.5V
60
4.5
V
850kHz 1A Synchronous Buck DC/DC Converter
IN
750
80
= 2.7V
5
900
100
5.5
-0.05
-0.15
-0.25
-16
-24
-32
-40
0.25
0.15
0.05
Loop Gain and Phase vs. Output Capacitor
16
40
32
24
-8
-2
-3
-4
-5
-1
8
0
0
10
2.5
0
150
3
V
I
OUT
V
IN
Frequency (kHz)
300
Gain
OUT
I
Load Regulation
= 3.6V I
OUT
= 0.4A
Line Regulation
Output Current (A)
3.5
47 F
=3.3V, V
Input Voltage (V)
= 1.0A
100 F
V
69 F
450
100
100 F
OUT
OUT
=1.5V
4
600
47 F
IN
= 0.3A
=5.0V
Phase
69 F
AAT1152
4.5
750
1152.2003.01.0.9
900
5
1000
225
180
135
90
45
0
-45
-90
-135
-180
-225
1050
5.5