Texas Instruments 2.95V to 6V, 4A SWIFT(tm) Converter Evaluation Module TPS54418EVM-375 TPS54418EVM-375 데이터 시트
제품 코드
TPS54418EVM-375
Board Layout
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connections for the remaining pins of the TPS54418 and a large area filled with ground. The bottom and
internal layers contain ground planes only. The top-side ground areas are connected to the bottom and
internal ground planes with multiple vias placed around the board including four vias directly under the
TPS54418 device to provide a thermal path from the top-side ground area to the bottom-side and internal
ground planes.
internal layers contain ground planes only. The top-side ground areas are connected to the bottom and
internal ground planes with multiple vias placed around the board including four vias directly under the
TPS54418 device to provide a thermal path from the top-side ground area to the bottom-side and internal
ground planes.
The input decoupling capacitors (C2, and C3) and bootstrap capacitor (C6) are all located as close to the
IC as possible. In addition, the voltage set-point resistor divider components are also kept close to the IC.
The voltage divider network ties to the output voltage at the point of regulation, the copper V
IC as possible. In addition, the voltage set-point resistor divider components are also kept close to the IC.
The voltage divider network ties to the output voltage at the point of regulation, the copper V
OUT
trace near
the output connector J4. For the TPS54418, an additional input bulk capacitor may be required, depending
on the EVM connection to the input supply.
on the EVM connection to the input supply.
Figure 11. TPS54418EVM-375 Top-Side Layout
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TPS54418EVM-375 4-A, SWIFT™ Regulator Evaluation Module
SLVU280 – May 2009