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3 Board Layout
Board Layout
Board layout is critical for all switch mode power supplies. Figure 3 , Figure 4 , and Figure 5 show the board
layout for the HPA150 PWB. The switching nodes with high-frequency noise are isolated from the
noise-sensitive feedback circuitry, and careful attention has been given to the routing of high-frequency
current loops. See the data sheet for more specific layout guidelines.
Figure 3. Top Assembly Layer Figure 4. Top Layer
Figure 5. Bottom Layer
SLVU142A – July 2006 – Revised November 2006 TPS61150EVM-150 / TPS61150AEVM-150 5
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