AAT1106
600mA Step-Down Converter
Typical Characteristics
Efficiency vs. Input Voltage
Output Voltage vs. Output Current
(VIN = 3.6V; L = 2.2µH; VOUT = 1.8V)
(VIN = 3.6V; VOUT = 1.8V; L = 2.2µH)
1.84
1.82
1.8
100
95
ILOAD = 500mA
90
85
1.78
1.76
1.74
1.72
1.7
ILOAD = 100mA
80
75
70
65
ILOAD = 10mA
60
55
50
1.68
1.66
1.64
2
3
4
5
6
0
200
400
600
800
1000
1200
Input Voltage (V)
Load Current (mA)
R
vs. Input Voltage
Frequency vs. Input Voltage
DS(ON)
(VOUT = 1.8V; ILOAD = 150mA; L = 2.2µH)
0.400
0.350
0.300
0.250
0.200
0.150
1.560
1.550
1.540
1.530
1.520
1.510
1.500
1.490
1.480
1.470
P-Channel MOSFET
N-Channel MOSFET
2
2.5
3
3.5
4
4.5
5
5.5
6
2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
Input Voltage (V)
Input Voltage (V)
Feedback Voltage vs. Temperature
RDS(ON) vs. Temperature
(VIN = 3.6V)
(VIN = 3.6V)
0.604
0.603
0.602
0.601
0.600
0.599
0.598
0.597
0.36
P-Channel
0.33
0.30
0.27
0.24
0.21
0.18
0.15
N-Channel
-45
-30
-15
0
15
30
45
60
75
90
-40
-20
0
20
40
60
80
100
Temperature (°C)
Temperature (
°C)
6
1106.2007.07.1.0
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
