AAT1156 Datasheet, PDF (5/14 Pages) Advanced Analogic Technologies – 1MHz 700mA Step-Down DC-DC Converter

Typical Characteristics
Output Ripple
(0.8V; 10mA; V_IN = 3.6V)
20
10
0
-10
-20
-30
-40
-50
-60
Time (2µs/div)
AAT1156
1MHz 700mA Step-Down DC-DC Converter
Soft Start
(0.8V; 700mA; V_IN = 3.6V)
1.4
2
3.5
1.2
1.5
3
1
1
2.5
0.8
0.5
2
0.6
0
1.5
0.4
-0.5
1
0.2
-1
0.5
0
-1.5
0
-0.2
-2
-0.5
Time (100µs/div)
Output Ripple
(0.8V; 700mA; V_IN = 3.6V)
20
3.5
10
3
0
2.5
-10
2
-20
1.5
-30
1
-40
0.5
-50
0
-60
-0.5
Time (250ns/div)
Line Transient
(I_OUT = 500mA; V_O = 0.8V)
4.4
60
4.2
50
4
40
3.8
30
3.6
20
3.4
10
3.2
0
3
-10
2.8
-20
Time (20µsec/div)
Load Transient Response
(50mA-680mA; V_IN = 3.6V; V_OUT = 0.8V)
0.83
0.81
0.79
0.77
0.75
0.73
Ø
0.71
0.69
Ø
0.67
Time (10µsec/div)
1156.2005.11.1.2
No Load Supply Current vs. Input Voltage
300
85°C
250
200
150
-40°C
100
25°C
50
0
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
5