TPS62132: Vout accuracy of fixed 3.3V version

Charles Zhang1

Expert 3430 points

Part Number: TPS62132

Hi Team,

Do we have Vout accuracy spec of fixed 3.3V version device? The datsheet only shows the accuracy of Vfb.

Regards,

Charles

over 3 years ago

0 Amod Vaze over 3 years ago

TI__Mastermind 26780 points

Charles,

Read point 4 below that table 7.5. This is the accuracy provided at the FB pin for the adjustable VOUT version (line and load regulation effects are not included). For the fixed output voltage versions the (internal) resistive divider is included.

Thanks,
Amod

0 Charles Zhang1 over 3 years ago in reply to Amod Vaze

TI__Expert 3430 points

Hi Amod,

Yes I know, but there should be some error existed in the internal resistive divider and the internal reference voltage, what's the overall accuracy at 3.3V fixed output voltage (how many %)?

Regards,

Charles

+1 Amod Vaze over 3 years ago in reply to Charles Zhang1

TI__Mastermind 26780 points

Hi Charles,

In PWM mode it is -1.8% to 1.8% and in PFM it is -2.3% to 2.8% This includes the internal resistive divider and reference voltage variations.

Thanks,
Amod

0 Charles Zhang1 over 3 years ago in reply to Amod Vaze

TI__Expert 3430 points

Hi Amod,

Thanks, it refers to the accuracy under full range temperature, right?

Regards,

Charles

+1 Amod Vaze over 3 years ago in reply to Charles Zhang1

TI__Mastermind 26780 points

Hi Charles,

Yes this is over full temp range.

Thanks,

Amod

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TPS62132: Vout accuracy of fixed 3.3V version