LT3990EMSE-5#PBF datasheet by Linear Technology

LT3990EMSE-5#PBF Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the LT3990 can handle?
  The LT3990 can handle input voltages up to 60V, but it's recommended to keep the input voltage below 50V for optimal performance and reliability.
• How do I ensure the stability of the output voltage?
  To ensure stability, make sure to use a minimum output capacitance of 10uF, and a maximum ESR of 1 ohm. Also, ensure that the output voltage is within the recommended range of 2.5V to 36V.
• What is the maximum output current that the LT3990 can deliver?
  The LT3990 can deliver up to 2A of output current, but it's recommended to keep the output current below 1.5A for optimal performance and reliability.
• How do I protect the LT3990 from overcurrent conditions?
  The LT3990 has a built-in overcurrent protection feature that limits the output current to 2.5A. However, it's recommended to add an external current sense resistor and a fuse to provide additional protection against overcurrent conditions.
• What is the thermal shutdown temperature of the LT3990?
  The LT3990 has a thermal shutdown temperature of 150°C. If the junction temperature exceeds this value, the device will shut down to prevent damage.