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LM2647: replace LTC3865EUH

GARETH OU
Guru 10335 points
Part Number: LM2647
Other Parts Discussed in Thread: LM5642

Hi

Could you help to confirm whether LM2647 can replace LTC3865EUH#PBF, thank you

LTC3865/LTC3865-1 - Dual, 2-Phase Synchronous DC/DC Controller with Pin Selectable Outputs (mouser.tw)

  • 0
    TI__Mastermind 21400 points

    Whether the LM2647 can replace the LTC3865 will depend on the customer use case.

    If customer needs greater than 28V, less the 5.5V or Sync pin then no. 

    The LM5642 may be a better device

     

    LM2647

    LTC3865

    Input Voltage

    5.5V to 28V

    4.5 to 38V

    Output Voltage

    0.6V to  

    (30% of 5.5V, 50% to 15V, 28% of 28V)

    0.6 to 5V

    # of Outputs

    2

    2

    Switching Frequency

    200kHz to 500kHz

    250 to 770kHz

    Mode

    FCCM and Skip

    FCCM, Burst or Skip

    Sync to ext clock

    N

    Y

    Supply Current

    1mA

    3mA

    Package

     

    TSSOP-28  9.7x6.4

    28-WQFN 5x5

    5x5 QFN