TPS53355: DC Tolerance +/- 1%

Roy Chou1

Genius 16055 points

Part Number: TPS53355
Other Parts Discussed in Thread: TPS543C20A, TPS543B20, TPS54424, TPS54A24, TPS54824

Hi Team,

Do we have DC tolerance in +/- 1% solution? (divider tolerance +/-5%)

Spec : Vin 12V Vout 0.8V Iout 19A

I see the TPS53355 FB pin tolerance is +/-1%(0-85C)

Do we have more accurate solution? or controller

Roy

over 5 years ago

0 Anthony F over 5 years ago

TI__Mastermind 35165 points

Hi Roy,

The TPS543C20A or TPS543B20 might fit. This has a 0.5% reference. The reference is also adjustable using the VSEL pin from 0.6V to 1.1V in 0.05V steps. So for a 0.8V a resistor divider is not needed.

Anthony

0 Roy Chou1 over 5 years ago in reply to Anthony F

TI__Genius 16055 points

Hi Anthony,

Thank you for your help. I think TPS543B20 could meet our requirments.

Do we have lower Iout solution (Vout/Iout = 3.3V/8A ; 1.2V/3A ; 1.88V/8A) Vin = 12V

Also need 0.5% reference.

Roy

0 Anthony F over 5 years ago in reply to Roy Chou1

TI__Mastermind 35165 points

For lower current, the TPS54824 is the tightest reference I know of at 0.85%. Also look at the TPS54424 and TPS54A24 for similar parts with different current ratings (4A and 10A).

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TPS53355: DC Tolerance +/- 1%