Data sheet, Typical application – Diodes AUR9707 User Manual

Page 13

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Data Sheet

Dual High-efficiency PWM Step-down DC-DC Converter with OVP AUR9707

Feb. 2012 Rev. 1. 1 BCD Semiconductor Manufacturing Limited

13

Typical Application




Note 3:

)

1

(

2

1

1

R

R

V

V

REF

OUT

+

×

=

;

)

R

R

1

(

V

V

4

3

REF

2

OUT

+

×

=

When R2 or R4=300k

Ω to 60 kΩ, the I

R2

or I

R3

=2

µA 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)

R1 or R3(k

)

R2 or R4(k

)

C1 or C2(pF)

L1 or L2(

µH)

3.3 240 53 20 2.2
2.5 240 75 20 2.2
1.8 240

120 20 2.2

1.5 240

160 20 2.2

1.2 240

240 20 2.2

1.0 240

300 20 2.2



Table 1. Component Guide

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