AT1361
1MHz,1A Synchronous Buck Converter
Typical characteristics :
Vout Voltage vs. Temperature
Vout Voltage vs. Temperature
2.55
2.54
2.53
2.52
2.51
2.5
3.35
3.34
Load=0.8A
Load=1A
3.33
3.32
3.31
3.3
2.49
2.48
2.47
2.46
2.45
3.29
3.28
3.27
3.26
3.25
V IN =5V
10 20 30 40 50 60 70 80 90
-30 -20 -10
0
10 20 30 40 50 60 70 80 90
-30 -20 -10
0
Temperature (
)
℃
Temperature (
)
℃
Efficiency VS. Load Current
Efficiency VS. Load Current
100
90
80
70
60
50
40
30
20
10
100
90
80
70
60
50
40
30
20
10
V IN =2.5V ,V O U T=1.2V
V IN =3.6V ,V O U T=3.3V
V IN =3.6V ,V O U T=1.2V
V IN =4.2V ,V O U T=1.2V
V IN =4.2V ,V O U T=3.3V
V IN =5V ,V O U T=3.3V
L=4.7uH /SR0302
V IN =5V ,V O U T=1.2V
L=4.7uH /SR0302
10
100
1000
10
100
1000
Load Current(mA)
Load Current(mA)
Efficiency VS. Load Current
100
90
80
70
60
50
40
30
20
10
V O U T=1.2V
V O U T=1.8V
V O U T=2.5V
V O U T=3.3V
L=4.7uH /SR0302
10
100
1000
Load Current(mA)
7F, No.9, PARK AVENUE II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
1/11/2008 REV:1.0
Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
Email:service@aimtron.com.tw
7
AIMTRON [ AIMTRON TECHNOLOGY ]
