TPS650330-Q1: PIMC

GARETH OU

Part Number: TPS650330-Q1

Continuing the same application as before, customer products will not have >4V voltage, only 3.3V voltage can be supplied to PMIC May I ask if PVIN_B1 , VSYS_S and VSYS pins are empty, will there be any problems? There are still other suitable PMICs that can be introduced

11 months ago

0 Phil Yi40 11 months ago

TI__Mastermind 37070 points

Hi Mr. Ou,

TPS650330-Q1 doesn't work for 3.3V VIN. We have many other PMICs are designed to work with 3.3V power supply; like LP8756/58/59 and LP8772/3.

Please post another e2e with "PMIC recommendation" subject and details like: VIN range; all power rails' voltage level; load current and power on/off sequences. We have e2e moderator to assign your post to right Apps for help.

Thanks!

Phil

0 GARETH OU 11 months ago in reply to Phil Yi40

Mastermind 9395 points

Hi Phil

Thank you for your reply

If. PVIN_B1 , VSYS_S and VSYS these pins can be floating connection?

0 Phil Yi40 11 months ago in reply to GARETH OU

TI__Mastermind 37070 points

Hi Mr. Ou,

I'm not sure; I'll test this case on our EVM tomorrow and update you result then.

Thanks!

Phil

0 Phil Yi40 11 months ago in reply to Phil Yi40

TI__Mastermind 37070 points

Hi Mr. Ou,

Test result is: The device needs the VSYS_S and VSYS above 3.64V which is the lowest level to maintain its internal regulator V1P8_INT on for device proper working.

Thanks!
Phil

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TPS650330-Q1: PIMC