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TPS61299: Output Voltage

Sameer Garg
Prodigy 10 points
Part Number: TPS61299
Other Parts Discussed in Thread: TPS61099,

The datasheet mentions the minimum output voltage from this up-converter is 1.8V, is it possible to get a 1.6V output?

  • 0
    TI__Expert 6245 points

    Hi Garg，

    Sorry 1.6V output is impossible to achieve. You can try TPS61099 to get 1.6V.

  • 0
    TI__Expert 4115 points

    Hi Sameer,

    For both 099 and 299, there are conserns that the internal circuit cannot get enough power if the output voltage is not high enough. May I know your application & requirements so that I can advice you other solutions like Boost + LDO?

    Best Regards,

    Travis

  • 0 in reply to Travis Wang
    Prodigy 10 points

    Hi Travis

    We have a serious space constraint in our design and hence do not want to add an LDO. We are using a coin cell (~1.2V) to power up an IC (requires ~1.6V)

  • 0 in reply to Sameer Garg
    TI__Expert 4115 points

    Hi Sameer,

    Sorry to say that we currently do not have such product. I'll re-assign this thread to PIMC team and see if they have boost with internal LDO.

    Also, may I know what IC needs 1.6V so that we may make such product for your design in the future.

    Best Regards,

    Travis

  • 0 in reply to Travis Wang
    TI__Genius 9980 points

    Hi Sameer,

    unfortunately the PMIC line does not have such a device. Usually our devices have at least three regulators which are typically bucks. Also we don't have such a low Vin device with our devices typically supporting down to 2.8 V. One of the smaller devices we have has a package size of 4.5mm x 5mm (vs. TPS61299 with the size of 1.2mm x 0.8mm).

    regards,

    Niko