Diodes AUR9719 - Manual (Page 7)

Data Sheet
1.5MHz, 2A, STEP DOWN DC-DC CONVERTER AUR9719
Nov. 2011 Rev. 1. 0 BCD Semiconductor Manufacturing Limited
7
Typical Performance Characteristics (Continued)
Figure 8. Efficiency vs. Output Current (V
OUT
=3.3V) Figure 9. Load Regulation (V
OUT
=1.0±0.03V)
Figure 10. Load Regulation (V
OUT
=1.2±0.03V) Figure 11. Load Regulation (V
OUT
=1.8±0.03V)
0.0 0.5 1.0 1.5 2.0
0
10
20
30
40
50
60
70
80
90
100
V
IN
=4.2V
V
IN
=5.0V
V
IN
=5.5V
V
OUT
=3.3V
Effi
c
iency (%)
Output Current (A)
0.0 0.5 1.0 1.5 2.0
0.97
0.98
0.99
1.00
1.01
1.02
1.03
V
IN
=3.3V
V
IN
=4.2V
V
IN
=5.0V
V
IN
=5.5V
V
OUT
=1.0+0.03V
Out
put
V
o
lta
ge (V
)
Output Current (A)
0.0 0.5 1.0 1.5 2.0
1.16
1.17
1.18
1.19
1.20
1.21
1.22
1.23
1.24
V
IN
=3.3V
V
IN
=4.2V
V
IN
=5.0V
V
IN
=5.5V
V
OUT
=1.2+0.03V
Ou
tp
ut
Volt
ag
e (V)
Output Current (A)
0.0 0.5 1.0 1.5 2.0
1.75
1.76
1.77
1.78
1.79
1.80
1.81
1.82
1.83
1.84
1.85
V
IN
=3.3V
V
IN
=4.2V
V
IN
=5.0V
V
IN
=5.5V
V
OUT
=1.8+0.03V
Ou
tp
ut
Volt
ag
e (V)
Output Current (A)