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TPS62510: Low Vin operation (Vin=1.8V)

KANJI SHIBATANI
Mastermind 6205 points
Part Number: TPS62510

 

Hello

Please adivse about TPS62510 for customer's New disign .

 

~~~~~

*Customer's spesificaiton

:Vin_min=1.5V～1.8V Vin_max=3.3V

:Vout=1.15V Iout_max=1.0A or 1.5A [

:Audio Application ( fPWM)

~~~~

I think Vin min=1.5V  of this requiremtn is difficult , but I think TPS62510 seems suitable if Vin min> 1.8V.

However, TPS62510 has no Webench simulation support. and SwitcherPro also.

Also, I have no Pspice simulator.

I will buy EVM, but  Would you please advise?

These are question( iquiry) from customer in advance to choose TPS62510.

Q1)

In case Vin=1.8V, Io=1A ( Vout=1.15V ) can be kept?

If available, in case Vin=1.8V, would  you  please have us  characteristic curve like Fig 13 ? ( Fig 13 has Vin=1.9V, but no curve of Vin=1.8V)

Q2)

If available, would you please give us charactristic curve which is Vin versus Iout at Vo=1.2V if you have.

 

Best Regardas

  • 0
    TI__Expert 5055 points
    Hi,

    Yes, this device is suitable for 1.8Vin.

    Q1:
    It can support 1A for 1.15Vout. You can use equation 3 in DS.
    Figure 13 with Vin=1.9V is already very close to the customer condition.
    Almost no difference is expected.

    Q2:
    I'm not sure what you are looking for. The line and load reg is specified in DS page 5.

    Thanks & Regards,
    Michael