Dual 400mA, 1MHz Step-Down DC-DC Converter
Typical Channel Characteristics
Efficiency vs. Load
(V
OUT
= 2.5V; L = 4.7μH)
μ
V
IN
= 3.3V
100
2.0
AAT2510
(V
OUT
= 2.5V; L = 4.7μH)
μ
Load Regulation
V
IN
= 3.0V
Efficiency (%)
90
Output Error (%)
1.0
80
V
IN
= 3.6V
V
IN
= 3.0V
0.0
70
-1.0
V
IN
= 3.3V
V
IN
= 3.6V
60
0.1
1.0
10
100
1000
-2.0
0.1
1.0
10
100
1000
Output Current (mA)
Output Current (mA)
Efficiency vs. Load
(V
OUT
= 1.8V; L = 4.7μH)
μ
V
IN
= 3.6V
100
90
2.0
(V
OUT
= 1.8V; L = 4.7μH)
μ
DC Regulation
Output Error (%)
V
IN
= 2.7V
Efficiency (%)
1.0
V
IN
= 4.2V
80
70
60
50
V
IN
= 4.2V
0.0
V
IN
= 2.7V
-1.0
V
IN
= 3.6V
0.1
1.0
10
100
1000
-2.0
0.1
1.0
10
100
1000
Output Current (mA)
Output Current (mA)
Frequency vs. Input Voltage
(V
OUT
= 1.8V)
1.0
2.0
Output Voltage Error vs. Temperature
(V
IN
= 3.6V; V
O
= 1.5V)
Frequency Variation (%)
Output Error (%)
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
0.5
0.0
-0.5
-1.0
-1.5
-2.0
1.0
0.0
-1.0
-2.0
-40
-20
0
20
40
60
80
100
Input Voltage (V)
°
Temperature (°C)
2510.2006.05.1.10
5