LD1117S12TR datasheet by STMicroelectronics

LD1117S12TR Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LD1117S12TR?
  The maximum input voltage is 15V, but it's recommended to keep it below 13.5V for reliable operation.
• How do I ensure stability of the output voltage?
  To ensure stability, a minimum output capacitance of 10uF with an ESR (Equivalent Series Resistance) of less than 1 ohm is recommended.
• What is the maximum output current that the LD1117S12TR can deliver?
  The maximum output current is 800mA, but it's recommended to keep it below 500mA for reliable operation and to prevent overheating.
• How do I protect the LD1117S12TR from overheating?
  To prevent overheating, ensure good thermal conduction by mounting the device on a heat sink or a PCB with a large copper area, and keep the ambient temperature below 70°C.
• Can I use the LD1117S12TR in a high-temperature environment?
  The LD1117S12TR is rated for operation up to 125°C, but the output current should be derated to 300mA at high temperatures (above 85°C) to prevent overheating.