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TPS25730: How much current can be drawn from LDO_3V3?

Yuki
Prodigy 60 points
Part Number: TPS25730


Tool/software:

I am using TPS25730DREFR with power supply only from VBUS_IN. I plan to use the LDO_3V3 pin to drive the ADC voltage divider resistor, /FAULT_IN pull-up, CAP_MIS LED, and external communication signal pull-up. Therefore, I would like to know how much current can be drawn from LDO_3V3 when VBUS is at 5-20 V.

  • +1
    TI__Mastermind 37655 points

    Hi Yuki,

    We typically recommend drawing a max of 10mA from LDO3V3.

    Typically, it is not recommended to use LDO3V3 to power peripherals not directly related to the TPS25730. If the external communication signal pull-up is a weak pull-up, it may be fine. Mainly try to observe the current limit.

    Thanks and Regards,

    Chris