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ZXLD1370EST16TC データシート(PDF) 26 Page - Diodes Incorporated

部品番号 ZXLD1370EST16TC
部品情報  60V HIGH ACCURACY BUCK/BOOST/BUCK-BOOST
PDF  40 Pages
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メーカー  DIODES [Diodes Incorporated]
ホームページ  http://www.diodes.com
Logo DIODES - Diodes Incorporated

ZXLD1370EST16TC データシート(HTML) 26 Page - Diodes Incorporated

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ZXLD1370
Document number: DS32165 Rev. 6 - 2
26 of 40
www.diodes.com
December 2016
© Diodes Incorporated
ZXLD1370
Application Information (Cont.)
Input Capacitor
The input capacitor can be calculated knowing the input voltage ripple VIN-PP as follows:
Buck
PP
IN
SW
LED
IN
V
x
f
I
x
)
D
1
(
x
D
C
Use D = 0.5 as worst case
Boost
PP
IN
SW
PP
L
IN
V
x
f
x
8
I
C
Buck-Boost
PP
IN
SW
LED
IN
V
x
f
I
x
D
C
Use D = DMAX as worst case
The minimum RMS current for the output capacitor is calculated as follows:
Buck
)
D
1
(
Dx
x
I
I
LED
RMS
CIN
Use D = 0.5 as worst case
Boost
12
I
I
PP
L
RMS
CIN
Buck-Boost
)
D
1
(
D
x
I
I
LED
RMS
CIN
Use D = DMAX as worst case



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