AUR9707 Datasheet, PDF (13/15 Pages) BCD Semiconductor Manufacturing Limited – Dual High-efficiency PWM Step-down DC-DC Converter with OVP

Dual High-efficiency PWM Step-down DC-DC Converter with OVP
Typical Application
Data Sheet
AUR9707
Note 3:
V_OUT1
= V_REF
× (1+
R₁
R₂
)
;
V_{OUT 2}
=
V_REF
× (1+
R_{3 )}
R₄
When R2 or R4=300kΩ to 60 kΩ, the I_R2 or I_R3=2µA to 10µA, and R1×C1 or R3×C2 should be in the range between
3×10^-6 and 6×10^-6 for component selection.
Figure 23. Typical Application Circuit of AUR9707
V_OUT1 or V_OUT2(V)
3.3
2.5
1.8
1.5
1.2
1.0
R1 or R3(kΩ)
240
240
240
240
240
240
R2 or R4(kΩ)
53
75
120
160
240
300
C1 or C2(pF)
20
20
20
20
20
20
L1 or L2(µH)
2.2
2.2
2.2
2.2
2.2
2.2
Feb. 2012 Rev. 1. 1
Table 1. Component Guide
BCD Semiconductor Manufacturing Limited
13