TPSM63603E: Switch node

Anicia Yu

Prodigy 40 points

Part Number: TPSM63603E

Can I leave SW, RBOOT, and CBOOT open if I am not using them?

3 months ago

0 Frank De Stasi 3 months ago

TI__Guru* 85855 points

Hello

Rboot and Cboot be tied together, as shown in the data sheet.

This connection can be left open, however the switch transition will be slower, giving better EMI but worse efficiency

Thanks

0 Anicia Yu 3 months ago in reply to Frank De Stasi

Prodigy 40 points

If I keep Rboot and Cboot do I still leave SW open or is the copper pour connected to GND? This is what the datasheet says:

Switch node. Do not place any external component on this pin or connect to any signal. The amount of copper placed on these pins must be kept to a minimum to prevent issues with noise and EMI.

0 Anicia Yu 3 months ago

Prodigy 40 points

I am using two of these converters to output 5V and 12V. Do I need to use a cap in VLDOIN or can I just tie it to ground?

0 Frank De Stasi 3 months ago in reply to Anicia Yu

TI__Guru* 85855 points

Hello

The SW pin should not be connected to anything.

The VLDOIN can be connected to Vout for the 5vout design.

For the 12vout design, you can tie to ground or vout.

Thanks

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TPSM63603E: Switch node