AAT2513
Dual 600mA Step-Down
Converter with Synchronization
Electrical Characteristics
Efficiency vs. Load
(V
OUT
= 1.5V; L = 2.2µH; LL Mode)
100
90
1.0
0.8
0.6
0.4
0.2
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
0.1
1
10
100
1000
0.1
1
10
100
1000
DC Regulation
(V
OUT
= 1.5V; L = 2.2µH; LL Mode)
Efficiency (%)
80
70
60
50
40
30
20
Output Error (%)
V
IN
= 2.7V
V
IN
= 3.3V
V
IN
= 4.2V
V
IN
= 5.0V
V
IN
= 3.6V
V
IN
= 4.2V
Output Current (mA)
Output Current (mA)
Switching Frequency vs. Temperature
Switching Frequency (MHz)
1.90
1.85
1.80
1.75
1.70
1.65
1.60
1.55
-40
4
Switching Frequency vs. Input Voltage
(I
OUT
= 600mA; 25°C)
V
IN
= 4.2V
Frequency Variation (%)
3
2
1
0
-1
-2
-3
-4
V
OUT
= 1.5V
V
OUT
= 1.8V
V
IN
= 3.6V
V
IN
= 2.5V
V
IN
= 3.3V
-20
0
20
40
60
80
100
120
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Temperature (°C)
°
Input Voltage (V)
Output Voltage Error Vs. Temperature
(V
OUT
= 2.5V; I
OUT
= 600mA)
0.30
No Load Quiescent Current vs. Input Voltage
70
Output Voltage Error (%)
Input Current (µA)
0.25
0.20
0.15
0.10
0.05
0.00
-40
V
IN
= 3.6V
65
60
55
50
45
2.5
85°C
25°C
V
IN
= 4.2V
-40°C
-20
0
20
40
60
80
100
120
3
3.5
4
4.5
5
5.5
6
Temperature (°C)
°
Input Voltage (V)
6
2513.2007.04.1.1
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
