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TPSM84624: Can I place more than one TPSM84624 in parallel, to share current (i.e. ORing)

Root Locus
Prodigy 20 points
Part Number: TPSM84624
Other Parts Discussed in Thread: LMZ31710

  I would like to use several TPSM84624 in parallel to increase (multiply) the current output.  I'm willing to use any number of passives and/or feed-back circuits, etc...  To make this happen... 

  I'm looking to create a 1 ~ 8 Volts variable supply at 40 Amps.  Any ideas?  FYI, the output voltage will vary, and will drive a load which is almost entirely resistive.

  I could try the classic diode ORing, or better yet, use a MOSFET configured to operate like an active diode (similar to synchronous rectification circuit).

  I will also consider placing other TI SMPS circuits in parallel if someone can recommend a good target for this.

  • 0
    TI__Mastermind 28020 points

    I would like to understand your application a liitle better. Can you contact me directly at jarrigo@ti.com?

    The LMZ31710 may be able to work in your application. See appnote SNVA749 for operating at higher output voltage. Depending on VIN, a single switching frequency may not work for all VOUT.