LM1085IS-3.3/NOPB datasheet by Texas Instruments

LM1085IS-3.3/NOPB Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LM1085IS-3.3/NOPB?
  The maximum input voltage is 15V, but it's recommended to keep it below 12V for optimal performance and to prevent overheating.
• Can I use the LM1085IS-3.3/NOPB in a high-temperature environment?
  The LM1085IS-3.3/NOPB is rated for operation up to 125°C, but thermal derating is required above 85°C. Ensure proper heat sinking and thermal management to prevent overheating.
• How do I ensure the output voltage is accurate and stable?
  Use a high-quality output capacitor with low ESR (Equivalent Series Resistance) and ensure the input voltage is well-regulated. Also, minimize noise and ripple on the input voltage to ensure a stable output.
• What is the minimum input capacitance required for stable operation?
  A minimum of 10uF input capacitance is recommended to ensure stable operation, but a larger value (e.g., 22uF) is recommended for optimal performance.
• Can I use the LM1085IS-3.3/NOPB in a switching regulator application?
  No, the LM1085IS-3.3/NOPB is a linear voltage regulator and not suitable for switching regulator applications. It's designed for low-dropout, low-noise, and high-PSRR (Power Supply Rejection Ratio) applications.