Texas Instruments TPS65235-1, Руководство пользователя

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Board Layout
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4 SLVUAZ0 – November 2016
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Evaluation Module for the TPS65235-1 LNB Voltage Regulator With I
2
C
Interface for DiSEqC2.x Application
In the TPS65235-1 application, the recommended ceramic capacitors rated are at least X7R and X5R, 35-
V rating and 1206 size for achieving lower LNB output ripple. For this EVM, two 22-
μ F, 35-V capacitors,
C8 and C9, are put at the output of the boost converter. If lower cost is demanded, a 100-
μ
F electrolytic
(low ESR) and a 10- μ F and 35-V ceramic capacitor also works well.
3 Board Layout
Figure 2 shows the component placement on the EVM. Figure 3 and Figure 4 illustrate the top and bottom
layers, respectively.
Figure 2. Component Placement (Top Layer)