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TPS2663: pin19 and pin24 tie to VOUT and VIN, not GND

Part Number: TPS2663

Tool/software:

Hi team,

Why does NC pin at pin19 and pin24 are respectively tied to OUT and IN in TPS26630-33EVM? 

My understanding is NC pin is recommended to tie to GND for heat dissipation, so I assumed pin19 and pin24 is also recommended to tie to GND.

Regards,

Hayashi

  • Hello Hayashi,

    Since pin 19 and pin 24 are near to VIN and VOUT pins. To have a bigger VIN and VOUT pad these NC pins are connected to VIN and VOUT

    Bigger VIN and VOUT pad results in good thermal around the trace.

    Thanks

    Amrit