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PMP22822: load regulation and cross regulation

Di Wang
Expert 1740 points
Part Number: PMP22822
Other Parts Discussed in Thread: LMR36520, LM5160, COT

Hi expert,

I would like to refer to the load regulation and cross regulation of this reference design. Do you have the test result? The converter,  LMR36520, is peak current mode. I would like to see if COT converter like LM5160 has better regulation.

Thanks.

  • +1
    TI__Intellectual 1040 points

    Hi Di,

    The data in the efficiency table in the test report shows the extent of cross regulation data measured on this board. This was designed for an application where all loads would either be on or off. There is always no load on VOUT_REG which stays stable at 17.9V. I would not expect much impact on cross regulation from varying the 3x 10mA loads. There is 5mA preload on these rails in order to meet +/-10% output accuracy under these conditions.

    Ben