aoz1050pi Alpha & Omega Semiconductor, aoz1050pi Datasheet - Page 11

• Manufacturer Part Number: aoz1050pi
• Description: Ezbucktm 2 A Synchronous Buck Regulator
• Manufacturer: Alpha & Omega Semiconductor

Layout Considerations
The AOZ1050PI is an exposed pad SO-8 package.
Several layout tips are listed for the best electric and
thermal performance.
1. The exposed pad (LX) is connected to the internal
2. Do not use a thermal relief connection to the VIN pin
3. The input capacitor should be connected as close as
4. A ground plane is preferred. If a ground plane is not
5. Make the current trace from the LX pad to L to Co to
6. Pour copper plane on all unused board area and
7. Keep sensitive signal trace away from the LX pad.
Rev. 1.0 June 2011
PFET and NFET drains. Connected a large copper
plane to the LX pin to help thermal dissipation.
or the PGND pin. Pour a maximized copper area to
the PGND pin and the VIN pin to help thermal
dissipation.
possible to the VIN pin and the PGND pin.
used, separate PGND from AGND and only connect
them at one point to avoid the PGND pin noise
coupling to the AGND pin.
the PGND as short as possible.
connect it to stable DC nodes, like VIN, GND or
VOUT.
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AOZ1050PI
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