AAT2315_07 Datasheet, PDF (6/22 Pages) Advanced Analogic Technologies – Dual 600mA Step-Down Converter with Synchronization

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