aoz1605 Alpha & Omega Semiconductor, aoz1605 Datasheet - Page 12

• Manufacturer Part Number: aoz1605
• Description: 500 Ma / 3 Mhz Ezbuck Regulator
• Manufacturer: Alpha & Omega Semiconductor

The AOZ1605 is an exposed pad DFN-8 package.
Several layout tips are listed below for the best electric
and thermal performance.
1. The exposed pad is connected to PGND. Connect a
2. Do not use thermal relief connection from the VIN pin
3. Input capacitor should be connected as close as
Rev. 1.0 March 2011
large copper plane to this pad to help thermal
dissipation.
and 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. For opti-
mal performance of the device, place bulk capacitor
and de-coupling capacitor no further than 50 mils
from the device.
Figure 2. AOZ1605 (DFN-8) PCB Layout
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4. A ground plane is preferred. If a ground plane is not
5. Make the current trace from LX pin to L to Co to
6. Pour copper planes on all unused board area and
7. Keep sensitive signal traces away from the LX pin.
used, separate PGND from AGND and connect them
only at one point to avoid the PGND pin noise
coupling to the AGND pin.
PGND as short as possible.
connect them to stable DC nodes, like VIN, GND
or VOUT.
AOZ1605
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