TPSM82902: use in inverted buck topology ?

Remi Lallement

Part Number: TPSM82902
Other Parts Discussed in Thread: TIDA-01405

Tool/software:

Dear TI team,

Is the TPSM82902 module usable in inverted buck topology, as shown for other modules in the Application Note SNVAA71 for example, or the TIDA-01405 design guide ?

I would like to achieve Vout = --2.3V with Vin = 12V, 1A nominal output current.

Thanks,

Remi

4 months ago

0 Colin Chen 4 months ago

TI__Genius 14731 points

Hi Remi,

Yes, TPS82902 can be used in this condition.

Thanks

Colin

0 Remi Lallement 4 months ago in reply to Colin Chen

Prodigy 15 points

Hi Colin.

Thanks for your quick reply. May I post the corresponding circuit here when I have it ready, for your review?

Regards,

Remi

0 Colin Chen 4 months ago in reply to Remi Lallement

TI__Genius 14731 points

Sure you can.

0 Remi Lallement 4 months ago in reply to Colin Chen

Prodigy 15 points

Hi Colin.

This is how I drafted the schematics. My main interrogation was about the MODE pin. I was not sure whether it should be connected to the system ground (=VOUT in this case) or to the GND pin.