TPS61091RSAR datasheet by Texas Instruments

TPS61091RSAR Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the TPS61091RSAR?
  The maximum input voltage that can be applied to the TPS61091RSAR is 18V, but it's recommended to keep it below 15V for optimal performance and reliability.
• How do I ensure the stability of the output voltage in the TPS61091RSAR?
  To ensure the stability of the output voltage, it's essential to use a suitable output capacitor with a low ESR (Equivalent Series Resistance) and a minimum capacitance of 10uF. Additionally, the output capacitor should be placed as close to the output pin as possible.
• What is the minimum input capacitance required for the TPS61091RSAR?
  The minimum input capacitance required for the TPS61091RSAR is 10uF, but it's recommended to use a higher capacitance (e.g., 22uF) to ensure stable operation and to filter out input voltage ripple.
• Can I use the TPS61091RSAR in a high-temperature environment?
  The TPS61091RSAR is rated for operation up to 125°C, but it's essential to ensure that the device is properly heat-sinked and that the junction temperature (TJ) does not exceed 150°C. Exceeding the maximum TJ can reduce the device's reliability and lifespan.
• How do I calculate the output voltage of the TPS61091RSAR?
  The output voltage of the TPS61091RSAR can be calculated using the following formula: VOUT = 1.21V x (1 + R1/R2), where R1 and R2 are the resistors connected to the FB pin. The output voltage range is from 2.5V to 15V.