LM78M15CT datasheet by Texas Instruments

LM78M15CT Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LM78M15CT?
  The maximum input voltage that can be applied to the LM78M15CT is 35V, although it's recommended to keep it below 25V for reliable operation.
• Can I use the LM78M15CT in a high-temperature environment?
  The LM78M15CT is rated for operation up to 125°C, but its performance may degrade at high temperatures. It's recommended to derate the output current and voltage at high temperatures.
• How do I ensure the LM78M15CT is stable and doesn't oscillate?
  To ensure stability, use a minimum output capacitance of 10uF, and keep the input and output capacitors close to the device. Also, avoid using long leads or wires that can cause oscillations.
• Can I use the LM78M15CT as a negative voltage regulator?
  No, the LM78M15CT is a positive voltage regulator and cannot be used as a negative voltage regulator. For negative voltage regulation, use a separate negative voltage regulator IC.
• What is the minimum input voltage required for the LM78M15CT to regulate the output voltage?
  The minimum input voltage required for the LM78M15CT to regulate the output voltage is around 18V, although it's recommended to keep it above 20V for reliable operation.