LT1084MK datasheet by Linear Technology

LT1084MK Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the LT1084MK can handle?
  The LT1084MK can handle input voltages up to 15V, but it's recommended to keep the input voltage at least 2V above the output voltage to ensure proper regulation.
• How do I ensure the LT1084MK is stable and doesn't oscillate?
  To ensure stability, make sure to use a minimum output capacitance of 10uF, and keep the output capacitor's ESR (Equivalent Series Resistance) below 1 ohm. Also, avoid using ceramic capacitors with high ESL (Equivalent Series Inductance) as they can cause oscillations.
• What is the minimum load current required for the LT1084MK to regulate properly?
  The LT1084MK can regulate properly with a minimum load current of 10mA. However, it's recommended to have a minimum load current of 100mA to ensure the regulator is in its active region and provides the best performance.
• Can I use the LT1084MK in a high-temperature environment?
  The LT1084MK 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 input voltage at high temperatures to ensure reliable operation.
• How do I protect the LT1084MK from input voltage transients and surges?
  Use a TVS (Transient Voltage Suppressor) diode or a voltage clamp at the input to protect the LT1084MK from voltage transients and surges. Also, consider adding a series resistor and capacitor at the input to filter out high-frequency noise and transients.