Documents LT3092 Turn On Current Spike

LT3092 Turn On Current Spike

Q: LT3092 Turn On Current Spike

Question: How to minimize the input current spike during turn-on of LT3092? Answer: The input current spike is caused by a high dv/dt on IN pin. This input pin supplies power to bias the internal circuitry and supply output load current. To minimize and limit the current spike during turn on, add an RC circuit to IN pin or adjust the dv/dt of the voltage source.

Question:

How to minimize the input current spike during turn-on of LT3092?

Answer:

The input current spike is caused by a high dv/dt on IN pin. This input pin supplies power to bias the internal circuitry and supply output load current. To minimize and limit the current spike during turn on, add an RC circuit to IN pin or adjust the dv/dt of the voltage source.