• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 62 subscribers
  • Views 366 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.

TPS7B69: SOT223 - what if pin 2 (GND) is not connected?

Lenio Cacula
Genius 16180 points
Part Number: TPS7B69

Due to circumstances of the layout, pin 2 of the SOT223 (DCY) TPS7B6933 cannot be connected to ground. What are the compromises, if any, will this application incur? Are all the parameters in the datasheet guaranteed?

Thank you!

  • 0
    TI__Guru 55940 points
    Hi Lenio,

    Pin 2 and 4 are internally shorted for the DCY (SOT-223) package of TPS7B69-Q1. As such, pin 2 must not be on any net but GND. If you are floating pin 2 in your application, your application thermal performance may be degraded as the primary heatsink for TPS7B69-Q1 is the GND plane of the PCB; however, you will not see any other degradation in performance.

    Very Respectfully,
    Ryan