Texas Instruments provides a recommended PCB layout in the datasheet, but it's essential to follow good thermal design practices, such as using a solid ground plane, placing thermal vias under the device, and keeping the thermal path short and direct to the heat sink or chassis.
Choose input capacitors with a low ESR, high ripple current rating, and a voltage rating that meets or exceeds the maximum input voltage. X7R or X5R ceramic capacitors are recommended. The datasheet provides guidance on the recommended capacitance value and voltage rating.
The maximum output capacitance is not explicitly stated in the datasheet, but it's recommended to keep the output capacitance below 100 μF to ensure stability. Larger output capacitance values may require additional stabilization components or a different output filter design.
The TPSM64406RCHR is rated for operation up to 125°C, but it's essential to consider the derating curves and thermal management when operating in high-temperature environments. Ensure proper heat sinking and airflow to maintain a safe junction temperature.
The enable pin (EN) is an active-high input. Ensure the EN pin is properly biased and decoupled. If issues persist, check the input voltage, output voltage, and current consumption to identify the root cause. Consult the datasheet and application notes for guidance on troubleshooting and design considerations.
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TPSM64406RCHR Overview
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
