AT1361
1MHz,1A Synchronous Buck Converter
Typical characteristics :
Quiescent Current vs. Input Voltage
90
85
Reference Voltage vs. Input Voltage
0.619
0.614
Quisecent Current(uA)
80
75
70
65
60
55
50
2
2.5
3
3.5
4
4.5
5
5.5
6
Reference Voltage(V)
0.609
0.604
0.599
0.594
0.589
Vout=1.2V
0.584
2
2.5
3
3.5
4
4.5
5
Vout=1.2V
5.5
6
Input Voltage(V)
Input Voltage(V)
Oscillator Frequency vs. Temperature
1.3
Oscillator Frequency vs. Input Voltage
1.15
1.25
1.2
Oscillator Frequency (MHz
1.15
1.1
1.05
1
0.95
0.9
0.85
Oscillator Frequency(MHz)
1.1
Load=1A
1.05
Load=0.8A
1
0.95
0.9
Vout=1.2V
Load=800mA
2
2.5
3
3.5
4
4.5
5
5.5
6
0.8
0.75
0.7
-30
-20
-10
0
10
20
30
40
50
V
IN
=5V
V
OUT
=3.3V
60
70
80
90
0.85
Input Voltage(V)
Temperature (℃)
Vout Voltage vs. Temperature
1.25
1.24
1.23
1.22
Vout Voltage vs. Temperature
1.85
1.84
1.83
1.82
Vout Voltage(V)
Vout Voltage(V)
1.21
1.2
1.19
1.18
1.17
1.16
1.15
-30 -20 -10
0
10
20
30
40
50
60
70
80
90
1.81
1.8
1.79
1.78
1.77
1.76
1.75
-30 -20 -10
0
10
20
30
40
50
60
70
80
90
Temperature (℃)
Temperature (℃)
7F, No.9, PARK AVENUE II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW:
http://www.aimtron.com.tw
1/11/2008 REV:1.0
Email:service@aimtron.com.tw
6
AIMTRON [ AIMTRON TECHNOLOGY ]
