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PTB48560B: Please provide another alternate part number which is active status

Tagore D
Prodigy 110 points
Part Number: PTB48560B
Other Parts Discussed in Thread: LM5155, LM5156

Tool/software:

Hello,

We required the Isolated DC-DC converter below mention specifications,

Input Voltage: 3.3V to 5V
Output Voltage: 3.6V
Out put power: 60W
Input and Output should be Isolated
Efficiency: 90%

We got this part number PTB48560B , it is NRND any alternate part number for our above specifications


  • 0
    TI__Guru* 78190 points

    Hi Tagore,

    Thank you for reaching out.  Sorry our group does not a device to support 3.3Vin isolated design.  Let me forward your thread to our BCC group and they may check if this can be supported with the LM5155/56 in flyback.   Please wait for their response in the next couple of days because they are in a different time zone.

    Thanks,

    Youhao

  • 0 in reply to Youhao Xi
    TI__Genius 15545 points

    Hi Tagore,

    Theroetically it would be possible to use LM5155 or LM5156 in Flyback configuration. However, for that you would have to use a small pre-booster or charge pump to supply the BIAS of the IC. Also the efficiency will most likely not reach 90%.

    Best regards,

    Moritz