TPS720: VBIAS connection

Katsu Matsunaga

Expert 7730 points

Part Number: TPS720

Hello,

I would like to confirm VBIAS supply of TPS72018

Is it possible that VBIAS connects to the power supply 3.3V to VIN?

VIN=3.3V (VBIAS=3.3V)

VOUT=1.8V

Thanks,

over 4 years ago

0 JCHK over 4 years ago

TI__Mastermind 43580 points

Hi Matsunaga-san,

Figure 10, suggests that this is OK. The data is for 3.3VOUT, but this in an N-Channel FET so I would suspect the data would be similar if VOUT is 1.8V:

Of course, this data only looks better if the load current is lower than 350mA.

I hope this helps.

0 Katsu Matsunaga over 4 years ago in reply to JCHK

TI__Expert 7730 points

Thank you!

Best regards, KM

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TPS720: VBIAS connection