PAM2306

Document number: DS36392 Rev. 3 - 2

12 of 15

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May 2021

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PAM2306

Application Information (continued)

PCB Layout Check List

When laying out the printed circuit board, the following checklist should be used to ensure proper operation of the PAM2306. These items are also

illustrated graphically in Figure 3. Check the following in your layout:

1. The power traces, consisting of the GND trace, the SW trace and the VIN trace should be kept short, direct and wide.

2. Does the FB pin connect directly to the feedback resistors? The resistive divider R1/R2 must be connected between the (+) plate of COUT and

ground.

3. Does the (+) plate of CIN connect to VIN as closely as possible? This capacitor provides the AC current to the internal power MOSFETs.

4. Keep the switching node, SW, away from the sensitive FB node.

5. Keep the (

–) plates of CIN and COUT as close as possible.

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Figure 3. PAM2306 Suggested Layout