LM337K datasheet by STMicroelectronics

LM337K Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the LM337K can handle?
  The LM337K can handle a maximum input voltage of 40V, but it's recommended to keep it below 35V for reliable operation.
• How do I ensure stability and prevent oscillations in the LM337K?
  To ensure stability, use a minimum output capacitance of 10uF, and keep the output voltage sense lines short and away from the input voltage lines. Also, use a low-ESR capacitor for the output filter.
• What is the minimum load current required for the LM337K to regulate properly?
  The LM337K requires a minimum load current of 3.5mA to regulate properly. If the load current is less than this, the output voltage may not be regulated accurately.
• Can I use the LM337K in a high-temperature environment?
  The LM337K is rated for operation up to 125°C, but its performance may degrade at high temperatures. It's recommended to derate the output current and voltage at high temperatures to ensure reliable operation.
• How do I protect the LM337K from input voltage transients and spikes?
  Use a TVS (Transient Voltage Suppressor) diode or a voltage clamp circuit at the input to protect the LM337K from voltage transients and spikes.