L4973D5.1-013TR datasheet by STMicroelectronics

L4973D5.1-013TR Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the L4973D5.1-013TR?
  The maximum input voltage is 15V, but it's recommended to keep it below 12V for optimal performance and to prevent overheating.
• How do I ensure the L4973D5.1-013TR is stable and doesn't oscillate?
  To ensure stability, make sure to use a minimum output capacitance of 10uF, and a minimum ESR (Equivalent Series Resistance) of 0.1 ohms. Also, keep the input and output capacitors close to the IC and use a good quality PCB layout.
• What is the minimum load current required for the L4973D5.1-013TR to function properly?
  The minimum load current required is 5mA. If the load current is less than 5mA, the regulator may not function properly or may oscillate.
• Can I use the L4973D5.1-013TR in a high-temperature environment?
  The L4973D5.1-013TR is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage as the temperature increases to prevent overheating and ensure reliable operation.
• How do I calculate the output voltage of the L4973D5.1-013TR?
  The output voltage can be calculated using the formula: Vout = Vref x (1 + R2/R1), where Vref is the internal reference voltage (1.235V), and R1 and R2 are the resistors used to set the output voltage.