G914 데이터 시트보기 (PDF) - Global Mixed-mode Technology Inc

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G914

150mA Low-Dropout Linear Regulators

Global Mixed-mode Technology Inc 

Global Mixed-mode Technology Inc.

G914

Layout Guide

An input capacitance of ≅ 1µF is required between the

G914 input pin and ground (the amount of the capaci-

tance may be increased without limit), This capacitor

must be located a distance of not more than 1cm from

the input and return to a clean analog ground.

Input capacitor can filter out the input voltage spike

caused by the surge current due to the inductive effect

of the package pin and the printed circuit board’s

routing wire. Otherwise, the actual voltage at the IN

pin may exceed the absolute maximum rating.

The output capacitor also must be located a distance

of not more than 1cm from output to a clean analog

ground. Because it can filter out the output spike

caused by the surge current due to the inductive effect

of the package pin and the printed circuit board’s

routing wire. Figure 3 is suggested PCB layout of

G914.

Figure 3. Suggested PCB Layout

*Distance between pin & capacitor must no more than 1cm

Ver 0.1 Preliminary

Nov 05, 2001

TEL: 886-3-5788833

http://www.gmt.com.tw

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