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TPS61021A: Start-up input current

Part Number: TPS61021A
Other Parts Discussed in Thread: TPS2553,

Hello team,

My customer is trying to use TPS61021A in combination with current limit switch TPS2553. TPS2553 will be used at the VIN side.

I wonder how much input current does TPS61021A require for start-up.

In my customer use case, VIN=0.5 - 2.6V (wide VIN range because it can be from supercap), VOUT=3.3V, Iout = 10-20mA at start up.

For example, do you think the TPS61021A start-up correctly if the input current is limited to 75mA?

Regards,

Itoh