L78L33CD-TR datasheet by STMicroelectronics

L78L33CD-TR Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the L78L33CD-TR?
  The maximum input voltage that can be applied to the L78L33CD-TR is 35V, but it's recommended to keep it below 30V for reliable operation.
• How do I ensure the L78L33CD-TR is stable and doesn't oscillate?
  To ensure stability, a minimum output capacitance of 2.2uF is recommended, and the input capacitor should be at least 1uF. Additionally, the layout should be designed to minimize parasitic inductance and capacitance.
• What is the maximum output current that the L78L33CD-TR can deliver?
  The L78L33CD-TR can deliver up to 1A of output current, but it's recommended to derate the output current based on the ambient temperature and input voltage to ensure reliable operation.
• How do I protect the L78L33CD-TR from overheating?
  To protect the L78L33CD-TR from overheating, ensure good thermal conductivity between the device and the PCB, and consider adding a heat sink if the device will be operating at high temperatures or with high output currents.
• Can I use the L78L33CD-TR in a switching regulator application?
  No, the L78L33CD-TR is a linear voltage regulator and is not suitable for use in switching regulator applications. It's designed for use in linear voltage regulation applications only.