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