AAT1156 Datasheet, PDF (6/14 Pages) Advanced Analogic Technologies – 1MHz 700mA Step-Down DC-DC Converter

AAT1156
1MHz 700mA Step-Down DC-DC Converter
Typical Characteristics
Output Voltage vs. Temperature
(V_IN = 4.2V; V_OUT = 0.8V; 400mA V_OUT)
0.1
0.0
-0.1
-0.2
-0.3
-0.4
-40
-20
0
20
40
60
Temperature (°C)
80
100
3.0
2.0
1.0
0.0
-1.0
-2.0
-3.0
0.0001
DC Regulation
(V_OUT = 0.6V)
V_IN = 4.2V
V_IN = 3.6V
V_IN = 2.7V
0.001
0.01
0.1
1
Output Current (A)
Frequency vs. Temperature
(V_IN = 3.6V)
1.2
1.1
1
0.9
0.8
0.7
0.6
-40
-20
0
20
40
60
Temperature (°C)
80
100
P-Channel R_DSON vs. Input Voltage
200
180
160
140
120
100
80
60
40
20
0
2.5
100°C 120°C
85°C 25°C
3
3.5
4
4.5
5
5.5
Input Voltage (V)
Frequency vs. Input Voltage
1.02
1.01
1
0.99
0.98
0.97
0.96
0.95
0.94
2.7
3.2
3.7
4.2
4.7
5.2
5.7
Input Voltage (V)
N-Channel R_DSON vs. Input Voltage
200
180
160
100°C 120°C
140
120
100
80
85°C 25°C
60
40
20
0
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
6
1156.2005.11.1.2