TPS2829DBVT datasheet by Texas Instruments

TPS2829DBVT Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for the TPS2829DBVT to minimize EMI?
  A good PCB layout for the TPS2829DBVT involves placing the input and output capacitors close to the IC, using a solid ground plane, and keeping the high-current paths short and wide. Additionally, it's recommended to use a shielded inductor and to keep the switching node (SW) away from sensitive analog nodes.
• How do I choose the right inductor value for my application?
  The inductor value depends on the input voltage, output voltage, and switching frequency. A good starting point is to use the inductor value calculation formula provided in the datasheet. Additionally, consider the inductor's saturation current, DC resistance, and core material when selecting an inductor.
• What is the maximum ambient temperature range for the TPS2829DBVT?
  The TPS2829DBVT is rated for operation from -40°C to 125°C. However, the maximum ambient temperature range may be limited by the specific application and the thermal design of the system.
• Can I use the TPS2829DBVT in a high-reliability or automotive application?
  Yes, the TPS2829DBVT is AEC-Q100 qualified and suitable for automotive and high-reliability applications. However, it's essential to follow the recommended design and layout guidelines, and to perform thorough testing and validation to ensure the device meets the specific application requirements.
• How do I troubleshoot issues with the TPS2829DBVT, such as oscillations or instability?
  To troubleshoot issues with the TPS2829DBVT, start by checking the PCB layout, component values, and soldering quality. Use an oscilloscope to measure the input and output voltages, and the switching node voltage. Check for signs of oscillations, such as ringing or high-frequency noise. Consult the datasheet and application notes for guidance on troubleshooting and debugging techniques.