AUR9703 Datasheet, PDF (18/20 Pages) BCD Semiconductor Manufacturing Limited – 1.5MHz, 800mA, STEP DOWN DC-DC CONVERTER

Data Sheet
1.5MHz, 800mA, STEP DOWN DC-DC CONVERTER AUR9703
Typical Application
R2
I_R2
R1
V_OUT
C_OUT
10 F
C1
L 2.2µH
1
EN
2
GND
3 _LX
FB ⁵
VIN ⁴
V_IN=2.5V to 5.5V
C_IN
4.7 F
Note
2:V_OUT1
= V_REF
× (1+
R₁
R₂
)
.
When R2=300kΩ to 60kΩ, the I_R2=2µA to 10µA, and R1×C1 should be in the range between 3×10^-6 and 6×10^-6 for
component selection.
Figure 41. Typical Application Circuit of AUR9703
Table 1. Component Guide
V_OUT(V)
1.0
1.2
1.8
2.5
3.3
R1(kΩ)
68
100
200
320
453
R2(kΩ)
100
100
100
100
100
C1(pF)
82
56
30
18
13
L1(µH)
2.2
2.2
2.2
2.2
2.2
Nov. 2011 Rev. 1 .0
BCD Semiconductor Manufacturing Limited
18