Datasheet

3 Board Layout
Board Layout www.ti.com
Board layout is critical for all switch-mode power supplies. Figure 2 , Figure 3 , and Figure 4 show the
board layout for the HPA210 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 2. Top Assembly Layer
Figure 3. Top Layer
4 TPS74901EVM-210 SLVU190B – April 2007 – Revised July 2008
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