RT9703CS datasheet(13/14 Pages) RICHTEK

部品番号	RT9703CS

部品情報	80m?? 3A Smart Universal Power Switch with Flag

PDF	14 Pages

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メーカー	RICHTEK [Richtek Technology Corporation]

ホームページ	http://www.richtek.com

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13 / 14 page

RT9703

Preliminary

Fault Flag Filtering (Optional)

The transient inrush current to downstream capacitance

may cause a short-duration error flag, which may cause

erroneous over-current reporting. A simple 1ms RC low-

pass filter (10k

Ω and 0.1µF) in the flag line eliminates

short-duration transients.

PCB Layout

In order to meet the voltage drop, droop, and EMI

requirements, careful PCB layout is necessary. The

following guidelines must be considered:

Keep all input and output traces as short as possible

and use at least 150-mil, 2 ounce copper for all races.

Avoid vias as much as possible. If vias are necessary,

make them as large as feasible.

Place a ground plane under all circuitry to lower both

resistance and inductance and improve DC and transient

performance (Use a separate ground and power plans

if possible).

Locate the bypass capacitors as close as possible to

the input and output pin of the RT9703.

*1'

9287

9,1

)/*

*1'

Board Layout

RT9703CS データシート(PDF) 13 Page - Richtek Technology Corporation