Texas Instruments provides a recommended PCB layout in the PT5506A evaluation module documentation, which includes guidelines for component placement, trace routing, and thermal management to ensure optimal performance and minimize noise.
The selection of input and output capacitors depends on the specific application requirements, such as ripple current, voltage rating, and ESR. TI recommends using low-ESR capacitors with a voltage rating of at least 2x the input voltage, and a capacitance value that meets the recommended ripple current specification.
While the datasheet specifies an operating temperature range of -40°C to 125°C, the maximum ambient temperature for reliable operation depends on the specific application and thermal management. TI recommends keeping the junction temperature below 125°C to ensure reliable operation and long-term reliability.
To ensure EMC compliance, follow proper PCB layout and design guidelines, use shielding and filtering components as needed, and ensure that the PT5506A is operated within its specified frequency range. Additionally, TI provides EMC compliance guidelines and test reports for the PT5506A in its documentation.
The recommended startup sequence for the PT5506A is to first apply the input voltage, followed by the enable signal. This ensures that the internal voltage regulators are properly initialized and that the device is in a stable operating state.
PT5506A datasheet
by Texas Instruments
