LM338T/NOPB datasheet by Texas Instruments

LM338T/NOPB Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LM338T?
  The maximum input voltage that can be applied to the LM338T is 40V. Exceeding this voltage can cause damage to the device.
• How do I ensure the stability of the output voltage?
  To ensure stability, a minimum output capacitance of 10uF is recommended, and the ESR (Equivalent Series Resistance) of the capacitor should be less than 5 ohms.
• What is the maximum current that the LM338T can supply?
  The maximum current that the LM338T can supply is 5A. However, the device can be paralleled to increase the output current.
• How do I protect the LM338T from overheating?
  To protect the LM338T from overheating, ensure good heat sinking, and keep the junction temperature (TJ) below 125°C. A heat sink with a thermal resistance of less than 10°C/W is recommended.
• Can I use the LM338T in a switching regulator application?
  No, the LM338T is a linear voltage regulator and is not designed for use in switching regulator applications. It is intended for use in linear regulator applications only.