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BQ25896: REGN LDO operation in case of battery operation(no VBUS)

Hirotaka Matsumoto
Guru 27585 points
Part Number: BQ25896

Hi all

Would you mind if we ask BQ25896?

<Question1>
In case of battery operation(VBUS=0V), when the battery monitor is active, does REGN LDO operate using battery voltage?

<Question2>
In relation to <Question1>, is REGN LDO's VDO 0.2V??(Because, in case of VBUS=5V, REGN LDO is 4.8V.)


Kind regards,

Hirotaka Matsumoto

  • 0
    TI__Guru**** 166916 points
    Matsumoto-san,

    Regarding 1, during battery only operation, REGN LDO is only output to the REGN pin when the ADC is in operation.

    Regarding 2, per the d/s spec, at VBUS=5.0V and IREGN=20mA, the typical dropout is 0.2V.