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AP6015 데이터시트(PDF) 14 Page - Diodes Incorporated

부품명 AP6015
상세설명  High Efficiency Step-Down Low Power DC-DC Converter
PDF  18 Pages
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제조업체  DIODES [Diodes Incorporated]
홈페이지  http://www.diodes.com
Logo DIODES - Diodes Incorporated

AP6015 데이터시트(HTML) 14 Page - Diodes Incorporated

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AP6015
High Efficiency Step-Down Low Power DC-DC Converter
AP6015 Rev.
2
14 of 18
AUGUST 2008
www.diodes.com
© Diodes Incorporated
Application Information
(Continued)
Inductor Selection
In order to avoid saturation of the inductor, the inductor should be rated at least for the maximum output
current plus the inductor ripple current which is calculated as:
f
L
V
V
V
I
CC
O
O
L
×
−
×
=
Δ
)
(
1
2
)
(
)
(
L
MAX
O
MAX
L
I
I
I
Δ
+
=
Where:
f= Switching frequency (1MHz typical)
L = Inductor value
△IL = Peak-to-peak inductor ripple current
IL(max) = Maximum inductor current
Vcc=3.6V
Vout=2.5V
f=1MHz
L=3.3uH
△IL≒230mA
Vcc=3.6V
Vout=2.5V
f=1MHz
L=1.8uH
△IL≒360mA



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