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TLV62150: Low cost alternative for battery powered products Low Iq?

Antonio Faggio
Expert 7240 points
Part Number: TLV62150
Other Parts Discussed in Thread: TPS62147, TPS62148, TPS62140, TLV62084, TPS62065

Hi All,

My customer is designing an application for which they need to deliver prototypes by the end of August.

It is a battery-powered product.

Customer doubt regards battery configuration.
I could work at 3.6V directly without anything stabilizing this voltage or working at 7.2V and then inserting a dcdc switching.
On the one hand the 7.2V would protect me from critical situations such as temperature (the 3.6V would not be guaranteed), on the other hand customer has no margin on the component cost to add components.
Furthermore, the product is critical in terms of consumption.

TLV62150 is a good option as dcdc switching also becasue of very low 19uA quiescent current.
The problem is the component cost @50ku/yr.

Or would you have alternatives to propose for lower cost solution fitting the above requirements?

Many Thanks,

Antonio

  • 0
    TI__Intellectual 1525 points

    Hi Antonio,

    can you please give me a bit more information about your customers requirements?

    - What is the required maximum output current?
    - What is the required output voltage?
    - Is the solution size critical?

  • 0 in reply to Bjoern Goerner
    TI__Expert 7240 points

    Hi Bjorn,

    - Required maximum output current? 2A
    - Required output voltage?                 3.6V
    -  Is the solution size critical? No particular specs, smaller footprint is better though

    Many Thanks,

    Antonio

  • 0 in reply to Antonio Faggio
    TI__Intellectual 1525 points

    Hi Antonio,

    If your customer requires 2A output current, the TLV62150 is not suitable as long as your customer is not splitting the load to two of these, because this is a 1A device.

    For 2A of output current combined with a low quiescent current, either the TPS62148/TPS62147 or the TPS62140 are suitable for more than 6V input voltage.

    For not more than 6V input voltage, I would suggest the TLV62084 because of the lower cost. If a lower quiescent current is required, the TPS62065 is an option.

    I hope one of these devices suits yor customers requirements.