LT1081CN datasheet by Linear Technology

LT1081CN Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LT1081CN?
  The maximum input voltage that can be applied to the LT1081CN is 30V, but it's recommended to keep it below 25V for reliable operation.
• How do I ensure the LT1081CN is stable and doesn't oscillate?
  To ensure stability, make sure to use a minimum output capacitance of 10uF, and keep the output capacitor's ESR (Equivalent Series Resistance) below 1 ohm. Also, avoid using ceramic capacitors with high ESL (Equivalent Series Inductance).
• What is the minimum input voltage required for the LT1081CN to regulate the output voltage?
  The minimum input voltage required for the LT1081CN to regulate the output voltage is typically around 2.5V above the output voltage. For example, if the output voltage is 5V, the minimum input voltage should be around 7.5V.
• Can I use the LT1081CN in a high-temperature environment?
  The LT1081CN is rated for operation up to 125°C, but its performance may degrade at high temperatures. Make sure to derate the output current and input voltage according to the datasheet's thermal derating curves.
• How do I calculate the power dissipation of the LT1081CN?
  The power dissipation of the LT1081CN can be calculated using the formula: Pd = (Vin - Vout) x Iout + Vin x Iq, where Vin is the input voltage, Vout is the output voltage, Iout is the output current, and Iq is the quiescent current.