PCB (, 000) : PCB PCB PCB PCB PCB Basic PCB Layout Guidelines for On Board Power Supply Development Chen Zhou Semtech International AG, Shanghai Abstract: PCB layout of on board power supply is one of the most critical tasks of a product designer. In many cases, a well designed power supply on paper may turn out to be unworkable due to poor PCB layout. In this paper, basic guidelines of power supply PCB layout are presented. Several practical power supply layout examples are explained in detail. Keywords: PCB layout, power supply. VIN R C C 4.uF/V 00uF/V C5 0R 00uF/V U COMP/SS SENSE D DN44 C4 4nF C uf GND VCC DL PHASE AC DC C 4 5 R5 DH BST nf D DN44 SC04 C K Q 4.uF C9 R.R R uf VOUT 5.R L 00uF/.V 00uF/.V 00uF/.V uh Q R9 R0.R PCB.R C C C0 C 4.uF C4 n R.5K C5 R nf.5k R4 k PCB PCB V,.V, 5A ) PCB. PCB PCB. PCB
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[] Schmitt, Ron. Electromagnetics Explained. [] Fluke, John. Controlling Conducted Emissions By Design. [] Montrose, Mark. EMC and the Printed Circuit Board: Design, Theory, and Layout Made Simple. [4] Erickson, Robert W. Supplementary Notes on EMI and Layout Fundamentals for Switched-Mode Circuits. [5] Novak, Istvan. Powering Digital Boards, Distribution and Performance. [5] SC04 Datasheet. Semtech International AG. http://www.semtech.com [] SC459 Datasheet. Semtech International AG. http://www.semtech.com [] SC45 Datasheet. Semtech International AG. http://www.semtech.com