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TLV62084: TLV62084 Switching Frequency vs Load Current Characteristics

Michael Jeong1
Expert 2620 points
Part Number: TLV62084

Hello Expert,

Our customer want to this data as below condition.

I found graph at only Vout 2.5V condition on the data sheet.

* Condition : Vin 5V, Vout 1.2V

Could you please send this data?

Best regards,

Michael

  • 0
    TI__Genius 16530 points

    Hello Michael,

    The switching frequency and load current characteristics shown below are performed by using the TLV62084EVM (TLV62084AEVM-828 Evaluation Module) by the following conditions.

    Input Voltage = 5 V

    Output Voltage = 1.2 V

    Load Current = 0.2 A to 2 A (with 0.2 A step change)

     

    If you have further questions please contact again.

    Thank you,

    Regards,

    Moheddin.

  • 0 in reply to Moheddin Pasha Shaik
    Expert 2620 points

    Hi Moheddin,

    Thanks for your feedback.

    Here is our customer's test result.

    It is different from your data.

    Could you please check what it is issue?

    Best regards,

    Michael

  • +1 in reply to Michael Jeong1
    TI__Genius 16530 points

    Hello Michael,

    Basically TPS62084 operates in DCS control with a nominal switching frequency of 2 MHz. In DCS control the switching frequency may vary due to many factors such as circuit losses, propagation delays  and tolerance of the passive components. 

    I would like to get more information to check where is the issue actually. please provide me the following data for further analysis.

    1. Vin measured at the IC pin

    2. Inductor current waveform

    3. switch node voltage including TON time.

    4. PCB layout to check the VOS pin connection.

    please indicate measurement points on the PCB.

    I would also like to know the desired switching frequency for the customer?

    Thanks,

    Regards,

    Moheddin.

  • 0 in reply to Moheddin Pasha Shaik
    TI__Genius 16530 points

    Hello Michael,

    Any update from the customer. If not, can you please close the threat for now and open a new one, once you received the complete information from the customer.

    Thank you,

    Regards,

    Moheddin.