TPS79501DCQR datasheet by Texas Instruments

TPS79501DCQR Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for the TPS79501DCQR to minimize noise and ensure optimal performance?
  A good PCB layout for the TPS79501DCQR involves placing the input and output capacitors close to the device, using a solid ground plane, and keeping the input and output traces separate to minimize noise coupling. TI provides a recommended PCB layout in the datasheet and application notes.
• How do I ensure the TPS79501DCQR is stable and doesn't oscillate?
  To ensure stability, make sure to follow the recommended output capacitor selection and ESR values, and use a minimum output capacitance of 10uF. Additionally, ensure the input voltage is within the recommended range, and the device is operated within the specified temperature range.
• What is the maximum input voltage that the TPS79501DCQR can handle?
  The TPS79501DCQR can handle a maximum input voltage of 5.5V, but it's recommended to operate within the specified input voltage range of 2.2V to 5.5V for optimal performance and reliability.
• Can I use the TPS79501DCQR in a high-temperature environment?
  The TPS79501DCQR is rated for operation up to 125°C, but the device's performance and reliability may degrade at high temperatures. It's recommended to derate the output current and ensure proper thermal management to ensure reliable operation.
• How do I calculate the output voltage of the TPS79501DCQR?
  The output voltage of the TPS79501DCQR is adjustable using the FB pin and an external resistor divider network. The output voltage can be calculated using the formula: Vout = 0.6V x (R1/R2 + 1), where R1 and R2 are the resistors in the divider network.