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BQ25750: Buck, Buck-Boost, Boost Transition Regions

Marco Montagna
Prodigy 40 points
Part Number: BQ25750

Hello,

I’m using the BQ25750 in my project and have set the output voltage to 21V. Could you please explain the transition region voltages between the Buck, Buck-Boost, and Boost operating modes?

Thank you for your assistance.

Best,

Marco

  • 0
    TI__Mastermind 31400 points

    Hello Marco,

    Buck-Boost mode will occur around ±2V from the battery voltage. Buck mode will occur when the input voltage is about 2V above the output voltage. Boost mode will occur when the input voltage is 2V below the output.

    The IC will seamlessly transition from buck to boost mode.

    Let me know if you have any more questions about this.

    Best Regards,
    Ethan Galloway