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TPS62150: Coil selection

Bob Hund
Intellectual 1570 points
Part Number: TPS62150
Other Parts Discussed in Thread: TPS62147

Hi,

on TPS62150, would it be OK to change induktor from "VLF302515MT-2R2M (TDK) " to "VLCF4024T-2R2N1R7-2 (TDK). " this due to coil goes end of life. 

FSW= high.

thanks

  • 0
    TI__Guru**** 150630 points
    Hi Bob,

    There is a detailed inductor selection section and table in the D/S. For FSW = high, we recommend a 3.3uH coil to ensure the ripple current is low enough to not reach current limit at the full 1A load. If the old coil is working fine, then the new one should also be fine, based on its spec.

    Finally, we have the newer, smaller, more accurate TPS62147 as a replacement to the TPS62150.