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LM2735XMF/NOPB 데이터시트(PDF) 36 Page - Texas Instruments

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부품명 LM2735XMF/NOPB
상세설명  LM2735-xx 520-kHz and 1.6-MHz Space-Efficient Boost and SEPIC DC-DC Regulator
PDF  59 Pages
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제조업체  TI [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI - Texas Instruments

LM2735XMF/NOPB 데이터시트(HTML) 36 Page - Texas Instruments

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Vin
Vo
Iin
Io
K
2.7V
3.1V
770 mA
500 mA
75%
Vin
Vo
Iin
Io
K
3.3V
3.1V
600 mA
500 mA
80%
Vin
Vo
Iin
Io
K
5V
3.1V
375 mA
500 mA
83%
VO
=
D
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VIN
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D
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LM2735, LM2735-Q1
SNVS485G – JUNE 2007 – REVISED AUGUST 2015
www.ti.com
(24)
(25)
Therefore:
(26)
One can see that all variables are known except for the duty cycle (D). A quadratic equation is needed to solve
for D. A less accurate method of determining the duty cycle is to assume efficiency, and calculate the duty cycle.
(27)
(28)
Figure 41. Efficiencies for Typical SEPIC Application
36
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Product Folder Links: LM2735 LM2735-Q1



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