PRODUCT DATASHEET
AAT2713
SystemPower
TM
Low Noise Dual 600mA Step-Down Converter with Synchronization
Electrical Characteristics
Efficiency vs. Load
(V
OUT
= 1V; L = 1.2µH; LL/PWM Mode)
100
90
Line Transient
(V
IN
= 3.6V to 4.6V; V
OUT
= 1.8V;
I
OUT
= 600mA; C
OUT
= 4.7µF)
Output Voltage
(AC coupled) (bottom) (V)
Input Voltage (top) (V)
5
4
3
1.85
1.80
1.75
Efficiency (%)
80
70
60
50
40
30
20
10
0.1
1
10
100
1000
V
IN
= 2.7V
V
IN
= 3.3V
V
IN
= 3.6V
V
IN
= 4.2V
V
IN
= 5V
V
IN
= 5.5V
Output Current (mA)
Time (200µs/div)
Switching Frequency vs. Temperature
(V
IN
= 3.6V; I
OUT
= 600mA)
Switching Frequency (MHz)
1.74
1.72
1.70
1.68
1.66
1.64
1.62
1.60
1.58
-40
-20
0
20
40
60
80
100
2
Switching Frequency vs. Input Voltage
(I
OUT
= 600mA)
V
OUT
= 2.5V
Frequency Variation (%)
1
V
OUT
= 1.8V
0
-1
-2
-3
-4
2.7
V
OUT
= 1.0V
V
OUT
= 1.2V
V
OUT
= 2.5V
3.1
3.5
3.9
4.3
V
OUT
= 3.3V
4.7
5.1
5.5
Temperature (°C)
Input Voltage (V)
No Load Quiescent Current vs. Input Voltage
(V
EN1
= V
EN2
= V
IN
)
90
900
P-Channel R
DS(ON)
vs. Input Voltage
120°C
Quiescent Current (µA)
80
85°C
R
DS(ON)
(mΩ)
Ω
800
700
600
500
400
300
2.5
100°C
85°C
70
25°C
60
-40°C
50
25°C
3
3.5
4
4.5
5
5.5
6
40
2.5
3
3.5
4
4.5
5
5.5
6
Input Voltage (V)
Input Voltage (V)
6
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2713.2008.01.1.0
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