TPS549B22: TPS549B22RVFR is set to 1.2V but measures 1.33V at the output

flavio

Part Number: TPS549B22

Used TPS549B22RVFR to generate 1.2V at 15A, but the output measures 1.33V. what could be wrong? schematic pdf is attached.x2_SCH_1V2_TPS549B22RVFR.pdf

over 3 years ago

0 David_Daniels over 3 years ago

TI__Genius 16720 points

Based on the schematic the voltage reference is 1V

Change the R3766 to 37.4k to set the reference to 0.9V

0 flavio over 3 years ago in reply to David_Daniels

Intellectual 410 points

Thanks, let me check and report back.

0 flavio over 3 years ago in reply to flavio

Intellectual 410 points

Thanks you, the Vref suggestion fixed our issue with the output voltage.

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TPS549B22: TPS549B22RVFR is set to 1.2V but measures 1.33V at the output