RT6318B datasheet(23/25 Pages) RICHTEK

부품명	RT6318B

상세설명	8A, 23V Synchronous Step-Down Converter with 3.3V/5V LDO

PDF	25 Pages

Scroll/Zoom	100%

제조업체	RICHTEK [Richtek Technology Corporation]

홈페이지	http://www.richtek.com

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RT6318B/C

DS6318B/C-01 December 2021

www.richtek.com

is a registered trademark of Richtek Technology Corporation.

Trace Width Design

For thermal, efficiency and PCB handling current capability,

the trace width design is very important. According to IPC-

2221 formally IDC-D-275 PWB, the following formulas can

be used to calculate the trace width for printed circuit

boards.

Inner trace :

0.5453

2 0.7349

I(Amp) = 0.015

T( C)

Area(mils )

 



Area(mils )

Width(mil) =

mil

Thickness(oz) 1.37









where

I(Amp) = Current,

ΔT(°C) = Temperature rise,

Area(mils2) = Cross sectional area = Width x Thickness,

Width(mil) = Trace width, and

Thickness(oz) = Layer Cu thickness.

Trace

PCB

Cooper Plane

Area

Width

Thickness

Outer trace :

0.4281

2 0.6732

I(Amp) = 0.0647

T( C)

Area(mils )

 



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