APW7143
Typical Operating Characteristics
(Refer to the application circuit 1 in the section “Typical Application Circuits”, VIN=12V, VOUT=3.3V, L1=4.7µH )
Output Current vs. Efficiency
Output Voltage vs. Output Current
100
3.4
90
3.38
80
3.36
70
3.34
60
50
VIN=5V, VOUT=3.3V, L1=2.2µH
3.32
3.3
40
30
VIN=12V, VOUT=5V, L1=6.8µH
3.28
3.26
20
10
VIN=12V, VOUT=3.3V, L1=4.7µH
0
0.001
0.01
0.1
1
10
Output Current, IOUT(A)
Current-Limit Level (Peak Current)
vs. Junction Temperature
7
3.24
3.22
3.2
0
1
2
3
Output Current, IOUT(A)
Output Voltage vs. Input Voltage
3.4
3.38 IOUT=500mA
6.5
3.36
3.34
6
3.32
3.3
5.5
3.28
3.26
5
3.24
3.22
4.5
-40 -20 0 20 40 60 80 100 120 140
Junction Temperature, TJ (oC)
3.2
4
6
8
10
12
14
Input Voltage, VIN (V)
VIN Input Current vs. Supply Voltage
2.0
VFB=0.85V
1.5
Reference Voltage vs. Junction Temperature
0.816
0.812
0.808
0.804
1.0
0.800
0.796
0.5
0.792
0.788
0.0
0
2
4
6
8 10 12 14
Supply Voltage, VIN (V)
Copyright © ANPEC Electronics Corp.
5
Rev. A.1 - Apr., 2008
0.784
-50
-25 0 25 50 75 100 125 150
Junction Temperature, TJ (oC)
www.anpec.com.tw