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ADP223ACPZ-R7 数据表(PDF) 22 Page - Analog Devices

部件名 ADP223ACPZ-R7
功能描述  Dual, 300 mA Output, Low Noise
PDF  24 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADP223ACPZ-R7 数据表(HTML) 22 Page - Analog Devices

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ADP222/ADP223/ADP224/ADP225
Data Sheet
Rev. B | Page 22 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
ADP222/ADP223/ADP224/ADP225. However, as listed in
Table 6, a point of diminishing returns is eventually reached
beyond which an increase in the copper size does not yield
significant heat dissipation benefits.
Place the input capacitor as close as possible to the VIN and
GND pins. Place the output capacitor as close as possible to the
VOUTx and GND pins. Use of 0402 or 0603 size capacitors and
resistors achieves the smallest possible footprint solution on
boards where area is limited.
U1
J1
TB2
TB5
C2
C1
C3
R3
R4
R1 R2
J2
TB6
ADP223 - ________ - EVALZ
TB7
GND
ANALOG
DEVICES
TB1
GND
TB4
TB3
Figure 76. Example 8-Lead LFCSP PCB Layout



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