LT1116CN8 datasheet by Linear Technology

LT1116CN8 Frequently Asked Questions (FAQs)

• What is the maximum input voltage that I can apply to the LT1116CN8?
  The maximum input voltage for the LT1116CN8 is 15V, but it's recommended to keep it below 12V for optimal performance and to prevent overheating.
• Can I use the LT1116CN8 in a high-temperature environment?
  The LT1116CN8 has a maximum operating junction temperature of 125°C, but it's recommended to keep it below 85°C for optimal performance and reliability. You can use thermal management techniques like heat sinks or thermal interfaces to reduce the junction temperature.
• How do I calculate the output voltage of the LT1116CN8?
  The output voltage of the LT1116CN8 is fixed at 3.3V, 5V, or adjustable (1.2V to 12V) depending on the specific part number. For adjustable versions, you can use the formula Vout = Vref * (1 + R1/R2) to calculate the output voltage, where Vref is the internal reference voltage (1.2V) and R1 and R2 are the resistors used to set the output voltage.
• What is the minimum input capacitance required for the LT1116CN8?
  The minimum input capacitance required for the LT1116CN8 is 10uF, but it's recommended to use a higher value (e.g., 22uF) to ensure stability and reduce input voltage ripple.
• Can I use the LT1116CN8 in a switching regulator application?
  No, the LT1116CN8 is a linear voltage regulator and is not suitable for switching regulator applications. It's designed to provide a stable output voltage from a higher input voltage, but it's not designed to handle high-frequency switching or high-current pulses.