參數(shù)資料
型號(hào): AOZ1012DI
廠商: ALPHA
英文描述: EZBuck⑩ 3A Simple Buck Regulator
中文描述: EZBuck⑩3A條簡(jiǎn)單的降壓穩(wěn)壓器
文件頁數(shù): 13/17頁
文件大?。?/td> 807K
代理商: AOZ1012DI
^lwNMNOa
April 2006
www.aosmd.com
Page 13 of 17
2.
Input capacitor should be connected to the VIN
pin and the PGND pin as close as possible.
3.
A ground plane is preferred. If a ground plane is
not used, separate PGND from AGND and
connect them only at one point to avoid the
PGND pin noise coupling to the AGND pin.
4.
Make the current trace from LX pins to L to Co
to the PGND as short as possible.
5.
Pour copper plane on all unused board area
and connect it to stable DC nodes, like VIN,
GND or VOUT.
6.
The two LX pins are connected to internal PFET
drain.
They
are
low
conduction path and most noisy switching
node. Connected a copper plane to LX pin to
help thermal dissipation. This copper plane
should not be too larger otherwise switching
noise may be coupled to other part of circuit.
resistance
thermal
LX
LX
Vin
PG
AG
FB
EN
CP
Cin
L
Cout
Thermal PAD: LX
Thermal PAD: AGND
Via to ground plane
Vin
Vo
GND
Figure 3. AOZ1012D PCB layout
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