L78L33ABD-TR datasheet by STMicroelectronics

L78L33ABD-TR Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the L78L33ABD-TR?
  The maximum input voltage that can be applied to the L78L33ABD-TR is 35V, but it's recommended to keep it below 30V for reliable operation.
• How do I ensure the L78L33ABD-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 L78L33ABD-TR can provide?
  The L78L33ABD-TR can provide 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 L78L33ABD-TR from input voltage transients?
  To protect the L78L33ABD-TR from input voltage transients, a TVS (Transient Voltage Suppressor) diode can be added between the input pin and ground. This will help clamp the input voltage to a safe level.
• What is the thermal resistance of the L78L33ABD-TR package?
  The thermal resistance of the L78L33ABD-TR package is typically around 30°C/W, but this can vary depending on the specific application and PCB design.