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TPS61081 Output Current

Other Parts Discussed in Thread: TPS61085, TPS61081, TPS61252

Dear all.

Do you have the following data?

VIN=3V VOUT=6V
/ How much current can be output on this condition?
  Can it operate at 500 mA?
/ How much is efficiency?

Regards,
PAN-M

  • Hi PAN-M,

    Tested in the lab with one device, the max output current is 540mA and the efficiency at 500mA is about 75.5%.

    According to the datasheet, the current limit at SW pin could vary from 1.3A to 2A, depending on different devices. If a device has a current limit of 1.3A, it's probably not able to give 500mA output current.

    Would you please give more information about your application environment and condition so that we can help to see if there is any other suitable part?

    BR

    Gene

  • Gene-san

    Thnak you for quickly answer.
    Our customer has not yet decided specification.
    Although I was recommend TPS61085 to the customer, but they said that when a device was a disable, the input current does not leak to output is good.
    I asks to a customer whether TPS61081 can be used.

    Regards,
    PAN-M

  • Hi PAN-M

    If  Vout is 6V and Vin is around 3V, I think TPS61252 could be a better choice, which also has a load disconnected function. Besides, it has a higher efficiency. We need more information to see if it can meet your requirement.

    BR

    Gene