RT9273 Просмотр технического описания (PDF) - Richtek Technology

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RT9273

High Performance, OLED + LED Driver for Dual Panel Mobile Phone

Richtek Technology 

Preliminary

Layout Guide

z A full GND plane without gap break.

z The input capacitor should be placed as close as possible to the input for good filtering.

z The switching path should be shorter to prevent EMI problems.

z The inductor and diode must be placed closely to the switch pin.

z The feedback path should be away from the inductor.

z The feedback resistor should be connected directly to the GND.

RT9273

Figure 8. Top Layer

Figure 9. Bottom Layer

DS9273-09 August 2007

www.richtek.com

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