ADP122ACPZ-3.3-R7 datasheet(19/24 Pages) AD

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ADP122ACPZ-3.3-R7 データシート(PDF) 19 Page - Analog Devices

部品番号	ADP122ACPZ-3.3-R7

部品情報	5.5 V Input, 300 mA, Low Quiescent Current, CMOS Linear Regulator

PDF	24 Pages

Scroll/Zoom	100%

メーカー	AD [Analog Devices]

ホームページ	http://www.analog.com

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19 / 24 page

Data Sheet

ADP122/ADP123

Rev. E | Page 19 of 24

PRINTED CIRCUIT BOARD LAYOUT CONSIDERATIONS

Heat dissipation from the package can be improved by increasing

the amount of copper attached to the pins of the ADP122/ADP123.

However, as shown in Table 6, a point of diminishing returns

eventually is reached, beyond which an increase in the copper

size does not yield significant heat dissipation benefits.

The input capacitor should be placed as close as possible to the

VIN and GND pins, and the output capacitor should be placed

as close as possible to the VOUT and GND pins. Use of 0402 or

0603 size capacitors and resistors achieves the smallest possible

footprint solution on boards where the area is limited.

Figure 52. Example ADP122 PCB Layout

Figure 53. Example ADP123 PCB Layout

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