LD1117S30TR datasheet by STMicroelectronics

LD1117S30TR Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LD1117S30TR?
  The maximum input voltage that can be applied to the LD1117S30TR is 15V, but it's recommended to keep it below 12V for reliable operation.
• How do I ensure stability of the output voltage with the LD1117S30TR?
  To ensure stability of the output voltage, a minimum output capacitance of 10uF is recommended, and the ESR (Equivalent Series Resistance) of the capacitor should be less than 1 ohm.
• Can I use the LD1117S30TR in a high-temperature environment?
  The LD1117S30TR is rated for operation up to 125°C, but the maximum junction temperature should not exceed 150°C. Thermal derating is required for high-temperature operation.
• How do I protect the LD1117S30TR from input voltage transients?
  A TVS (Transient Voltage Suppressor) diode or a voltage clamp can be used to protect the LD1117S30TR from input voltage transients. A series resistor can also be added to limit the input current.
• Can I use the LD1117S30TR in a parallel configuration to increase the output current?
  Yes, the LD1117S30TR can be used in a parallel configuration to increase the output current, but it's recommended to use a current-sharing technique, such as adding a small resistor in series with each regulator, to ensure equal current distribution.