TPS61027DRCRSY datasheet by Texas Instruments

TPS61027DRCRSY Frequently Asked Questions (FAQs)

• What is the recommended input capacitor value and type for optimal performance?
  A 10uF to 22uF X5R or X7R ceramic capacitor is recommended for input decoupling, placed as close as possible to the VIN pin.
• How do I ensure stable output voltage regulation?
  Ensure the output capacitor value is within the recommended range (10uF to 47uF), and the ESR is less than 1 ohm. Also, keep the feedback resistors (RFBT and RFBG) within the recommended range (1k to 10k ohms).
• What is the maximum input voltage that can be applied to the TPS61027DRCRSY?
  The maximum input voltage is 5.5V, but it's recommended to keep it below 5V to ensure reliable operation and minimize power dissipation.
• Can I use the TPS61027DRCRSY in a high-temperature environment?
  The device is rated for operation up to 125°C, but the output voltage accuracy and stability may degrade at high temperatures. Ensure proper thermal management and consider derating the output current accordingly.
• How do I calculate the output voltage ripple and noise?
  Use the formula: ΔVout = (Iout * ESR) / (fsw * Cout), where Iout is the output current, ESR is the output capacitor's equivalent series resistance, fsw is the switching frequency (1.2MHz typical), and Cout is the output capacitor value.