• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 159 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TLV757P: Dropout voltage graph

Motoyasu Hattori
Expert 8695 points
Part Number: TLV757P

Hi,

According to Figure14 on the TLV757P datasheet P.9, we can find the Dropout voltage graph "2.2-V Dropout Voltage vs Iout".  Which is correct condition on this graph, VIN=3.3V or VOUT=3.3V?   Please let us know.

Also, my customer requests the dropout voltage under the following condition.  Could you please let us know the dropout voltage?

  • Case: Vin = 3.3V, Vout = 2.5V, Iout = 300mA

Please advise us.

Thanks and best regards,
M.HATTORI

  • 0
    TI__Genius 12345 points

    Hi Hattori, 

    On Figure 14 P.9, I see the following: 

    This is for Vout=3.3V not Vin=3.3V.

    Motoyasu Hattori said:

    Also, my customer requests the dropout voltage under the following condition.  Could you please let us know the dropout voltage?

    • Case: Vin = 3.3V, Vout = 2.5V, Iout = 300mA

    The device has enough headroom to operate

    For your conditions in a worst case

    Rds-on=650mOhms

    giving a Vdo=195mV for Vout=2.5V@300mA, therefore: Vin must be at least 2.695V and you are providing 3.3V. 

    Best, 

    Edgar Acosta