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LM5163: What's the LM5163 supply current when device in standby mode

Ted Zhang
Intellectual 2280 points
Part Number: LM5163

HI Team

What's the LM5163 supply current when device in standby mode(EN in 1.1V-1.5V range)?

I checked and see datasheet only shows supply current when EN = GND and EN = 2.5V.

Also what's the difference between the standby mode and sleep mode?

Thanks

  • 0
    TI__Genius 10655 points

    Hello Ted,

    The sleep mode occurs under light load conditions when the FB voltage is above 1.2V and the output capacitor sources the load current for more than 15us. The part is enabled in this mode meaning the device is still regulating the output. This mode is meant to ensure that the converter is still able to regulate the output voltage to the desired set point while also ensuring that the input current is really low so as not to drain the input power supply.

    Standby mode on the other hand occurs when the part is not fully enabled, but the internal circuitry is powered by the Vcc which is produced by an internal LDO. No switching occurs in standby mode, so the device is not regulating the output, and the control circuitry is disabled.

    In terms of the supply current value, I will speak with the engineer responsible and get you a value range. Please expect 1-2 business day delay in reply.

    Thanks,

    Harrison Overturf

  • 0 in reply to Harrison Overturf
    TI__Genius 10655 points

    Hello Ted,

    I apologize for the delay, the quiescent current during Standby mode should be the same as the quiescent current during Active mode ~600uA.

    Regards,

    Harrison Overturf