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LM5122ZA: Start up and driving into a super cap

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Part Number: LM5122ZA

Hi Support team

My customer is looking for a solution that can accept an input from 4~5.5 volts and output 12 volts into a super cap (2mF). The idea is that they want to power the device from a current limited source and charge up a cap. They will use the energy in the cap to flash a LED. I can provide more details in a separate email. Max input current is 1.5A. The LM5122Z is perfect except for the start up at 4volts. If I disconnect the load just to get the output started and then reconnect the cap load can I use the part in this application (4 v start up)? Or is there another part that you can recommend. Key feature being the ability to set an input current limit?

Thanks

Jeff Coletti


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