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Original question:

TPS63030: Is it good to regulate typical 3.6v cell voltage of Li-SOCI2 battery to 3.6v supply?

TPS63030: Quescient current of TPS63030

Dawei
Intellectual 280 points
Part Number: TPS63030
Other Parts Discussed in Thread: TPS63802

Hello,

I'd like to ask whether TI has a buck-boost regulator similar with TPS63030 but with lower quiescent current value? Picture below is cut from TPS63030 DS.

Considering a battery with 17Ah capacity, 10 years service life, the energy consumed by TPS63030 is 35uA * 24 hours * 365 * 10 / 1000000 = 3.07Ah, about 20% total energy.

Regards,

Ma Dawei

  • 0
    TI__Expert 7925 points

    Hi Dawei,

    The consumed energy will actually be higher. Iq is a device parameter, and for your calculation you need no-load input current, which is higher than Iq. How to estimate no-load input current from Iq you can find in this application note:

    Iq: What it is, what it isn’t, and how to use it

    The TPS63802 is our buck-boost device with the lowest Iq at the moment, typically 11 µA, resulting in no-load input current below 20 µA. It is currently in preproduction phase, but samples are still available.

    Best regards,
    Milos 

  • 0
    TI__Expert 7925 points

    Hi Dawei,

    We haven’t heard back so we're assuming this answers your question. If not, just post a reply below, or create a new thread if the thread has locked due to time-out.

    Thanks and regards,
    Milos