aoz1056 Alpha & Omega Semiconductor, aoz1056 Datasheet - Page 12

• Manufacturer Part Number: aoz1056
• Description: Ezbucktm 2a Simple Buck Regulator
• Manufacturer: Alpha & Omega Semiconductor

5. Pour copper plane on all unused board area and
6. The LX pin is connected to internal PFET drain. They
Rev. 1.2 September 2008
connect it to stable DC nodes, like V
V
are low resistance thermal 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
OUT
.
Cc
Css
Rc
AGND
COMP
VIN
SS
Cin
1
2
3
4
IN
SO-8
, GND or
Figure 3. AOZ1056 PCB Layout
8
7
6
5
R2
www.aosmd.com
EN
FB
PGND
LX
R1
7. Keep sensitive signal trace such as trace connected
Vo
may be coupled to other part of
circuit.
with FB pin and COMP pin far away form the LX pins.
L
Cout
Vo
AOZ1056
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