TPS717: The output voltage of TPS71701 isn't right.

Frank Xiao

Genius 12055 points

Part Number: TPS717

Hi team,

My customer is using the TPS71701 to generate 1.8v, but find the output is 2.3v when no load, the output is 1.8v with 200ohm load. Could you please help check the schematic and reason? Thanks.

over 6 years ago

0 Jason Song over 6 years ago

TI__Mastermind 23361 points

Hi Frank,

Just looked the schematic, the ratio of R1 and R2 should give you the 1.8V output. Can you ask your customer to check if they have some weak pull up that will bring the rail to 2.3V? The LDO itself should regulate the voltage at 1.8V.

Regards,
Jason Song

0 Jason Song over 6 years ago in reply to Jason Song

TI__Mastermind 23361 points

Hi Frank,

Since we started our communication via emails, I am closing the thread.

Thanks,
Jason Song

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TPS717: The output voltage of TPS71701 isn't right.