AUR9705 Datasheet, PDF (6/14 Pages) BCD Semiconductor Manufacturing Limited – 1.5MHz, 1A, STEP DOWN DC-DC CONVERTER

1.5MHz, 1A, STEP DOWN DC-DC CONVERTER
Typical Performance Characteristics
Data Sheet
AUR9705
100
90
80
70
60
50
C =10µF
OUT
L=2.2µH
40
V =2.5V
IN
30
V =3.3V
IN
V =4.2V
20
IN
V =5V
IN
10
V =5.5V
IN
0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
Output Current (A)
Figure 4. Efficiency vs. Output Current (V_OUT=1.2V)
100
90
80
70
60
50
C =10µF
OUT
40
L=2.2µH
V =3.3V
30
IN
V =4.2V
IN
20
V =5V
IN
V =5.5V
10
IN
0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
Output Current (A)
Figure 5. Efficiency vs. Output Current (V_OUT=2.5V)
100
90
80
70
60
50
40
C =10µF
OUT
30
L=2.2µH
V =4.2V
IN
20
V =5.0V
IN
10
V =5.5V
IN
0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
Output Current (A)
Figure 6. Efficiency vs. Output Current (V_OUT=3.3V)
1.60
1.55
1.50
1.45
1.40
1.35
V =1.2V
1.30
OUT
L=2.2µH
1.25
C =10µF
OUT
1.20
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Input Voltage (V)
Figure 7. Frequency vs. Input Voltage
Nov. 2011 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
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