AAT1150
1MHz 1A Step-Down DC/DC Converter
Typical Characteristics
High Side R
DS(ON)
vs. Temperature
170
170
Low Side R
DS(ON)
vs. Temperature
150
3.6V
R
DS(ON)
(mΩ)
2.7V
150
R
DS(ON)
(mΩ)
130
130
3.6V
2.7V
5.5V
4.2V
0
20
40
60
80
100
120
110
110
90
4.2V
5.5V
90
70
-20
0
20
40
60
80
100
120
70
-20
Temperature (°C)
Temperature (°C)
R
DS(ON)
vs. Input Voltage
130
1.2
Enable Threshold vs. Input Voltage
120
Enable Threshold (V)
1.1
High Side
R
DS(ON)
(mΩ)
110
V
EN
(H)
1
100
0.9
90
Low Side
0.8
V
EN
(L)
80
2.5
3
3.5
4
4.5
5
5.5
0.7
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
Input Voltage (V)
Oscillator Frequency Variation vs.
Supply Voltage
3.5
2.5
Oscillator Frequency Variation vs. Temperature
(V
IN
= 3.6V)
10
6
Variation (%)
1.5
0.5
-0.5
-1.5
2.5
3
3.5
4
4.5
5
5.5
Variation (%)
2
-2
-6
-10
-20
0
20
40
60
80
100
Supply Voltage (V)
Temperature (°C)
1150.2005.03.1.2
5
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
