TPS826745SIPR datasheet by Texas Instruments

TPS826745SIPR Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance?
  Texas Instruments provides a recommended PCB layout in the TPS826745SIPR datasheet (section 10.2) and in the TPS82674EVM-001 evaluation module documentation. It's essential to follow these guidelines to minimize noise, ensure proper thermal management, and optimize performance.
• How do I select the correct output capacitor for my application?
  The output capacitor selection depends on the output voltage, output current, and desired ripple voltage. TI recommends using a low-ESR ceramic capacitor (X5R or X7R dielectric) with a minimum capacitance of 10uF and a voltage rating of at least 1.5 times the output voltage. Refer to the datasheet (section 7.3.1) for more information.
• What is the maximum input voltage that the TPS826745SIPR can handle?
  The TPS826745SIPR has an absolute maximum input voltage rating of 6.5V. However, the recommended operating input voltage range is 3.5V to 5.5V. Exceeding the absolute maximum rating can damage the device.
• How do I implement overcurrent protection (OCP) and short-circuit protection (SCP) in my design?
  The TPS826745SIPR has a built-in OCP and SCP feature. To implement it, connect the OCP pin to a resistor divider network that sets the current limit threshold. The SCP feature is enabled by default and will limit the output current to 2.5A. Refer to the datasheet (section 7.3.4) for more information.
• What is the thermal derating of the TPS826745SIPR, and how does it affect my design?
  The TPS826745SIPR has a thermal derating of 13.3mW/°C above 25°C. This means that the device's power dissipation capability decreases as the ambient temperature increases. Ensure that your design takes into account the thermal derating to prevent overheating and maintain reliable operation.