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LMZ31506: switching frequency question

Part Number: LMZ31506

The standard switching frequency is 480KHz for 1.2V output as descritpion of datasheet. But due to some reasons, I need to increase switching frequency to ~750KHz. Could I only change the value of Rrt and keep Vout and Rset not changed? Will it be any issue? Thanks. 

  • The maximum switching frequency will depend on the input voltage. Refer to table 7 of the datasheet. If operating from a 12V input, the maximum switching frequency for 1.2V output is 630kHz. If operating from 5V input, then any switching frequency from 250kHz to 780kHz is allowed.

  • In reply to J Arrigo:

    Is it for either RT mode and CLK mode?

  • In reply to le shen:

    Yes, the switching frequency range applies to both RT mode or CLK mode.

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