TPS65552ADGQR datasheet by Texas Instruments

TPS65552ADGQR Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of the TPS65552ADGQR?
  Texas Instruments provides a recommended PCB layout in the datasheet, but it's essential to follow good PCB design practices, such as keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing trace lengths and widths to reduce parasitic inductance and capacitance.
• How do I ensure the TPS65552ADGQR is stable and doesn't oscillate?
  To ensure stability, follow the recommended component values and PCB layout, and make sure the output capacitor has a low equivalent series resistance (ESR). Additionally, the input capacitor should be placed close to the device and have a low ESR. If oscillations occur, try adding a small ceramic capacitor (e.g., 10nF) in parallel with the output capacitor.
• What is the maximum input voltage that the TPS65552ADGQR can handle?
  The TPS65552ADGQR has an absolute maximum input voltage rating of 18V. However, the recommended maximum input voltage is 15V to ensure reliable operation and prevent damage to the device.
• Can I use the TPS65552ADGQR in a high-temperature environment?
  The TPS65552ADGQR is rated for operation up to 125°C (TJ). However, the device's performance and reliability may degrade at high temperatures. It's essential to follow the recommended operating conditions and consider thermal management techniques, such as heat sinks or thermal interfaces, to ensure reliable operation.
• How do I calculate the output voltage of the TPS65552ADGQR?
  The output voltage of the TPS65552ADGQR can be calculated using the formula: VOUT = (R1 / R2) * (VIN - VREF), where R1 and R2 are the resistors in the feedback network, VIN is the input voltage, and VREF is the internal reference voltage (typically 0.8V).