APW7137
Typical Operating Characteristics
(Refer to Fig 1. in the section “Typical Application Circuits”, VIN=3.6V, TA=25oC, unless otherwise specified)
Reference Voltage vs.
Junction Temperature
Switching Current vs. Supply Voltage
1.2
1.28
1.27
1.26
1.25
1.24
1.23
1.22
1.21
1.20
1.19
1.18
1
0.8
0.6
0.4
0.2
0
VFB=1.0V
5.5
-50
-25
0
25
50
75
100 125
2.5
3
3.5
4
4.5
5
6
SupplyVoltage, VIN (V)
Junction Tem perature, TJ(°C)
Switch ON Resistance vs.
Junction temperature
Maximum Duty Cycle vs.
Supply Voltage
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
100
90
80
70
60
50
40
VIN=2.7
V
VIN=3.6V
VIN=5V
25 50
2.5
3
3.5
4
4.5
5
5.5
6
-50
-25
0
75
100 125
SupplyVoltage, VIN (V)
Junction Tem perature, TJ(°C)
Switching Frequency vs.
Supply Voltage
Switching Frequency vs.
Junction Temperature
1.2
1.1
1
1.2
1.1
1
0.9
0.8
0.7
0.6
0.5
0.4
0.9
0.8
0.7
0.6
0.5
0.4
2.5
3
3.5
4
4.5
5
5.5
6
-50
-25
0
25
50
75
100 125
SupplyVoltage, VIN (V)
Junction Tem perature, TJ(°C)
Copyright ã ANPEC Electronics Corp.
4
www.anpec.com.tw
Rev. A.4 - Oct., 2008
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
