TPS51200A-Q1: Vf change

Neal Zhu

Expert 2470 points

Part Number: TPS51200A-Q1
Other Parts Discussed in Thread: TPS51200-Q1,

Hi，

The reference voltage changed from 0.675 to 0.95V after the chip was input into the program，

What could be the reason？

0 Neal Zhu over 6 years ago

Expert 2470 points

Hi，

Additional questions:Vrefout changed from 0.675 to 0.9-0.95V，when the chip burning program，What could be the reason.

because tps51200-q1 is NRND, so we changed it to TPS51200A-Q1.

the customer used TPS51200-Q1 before, but the Vref voltage was not pulled up on the site, but it has not been cross-verified,

0 Qian Chen over 6 years ago in reply to Neal Zhu

Hello,

REFOUT voltage follows REFIN voltage.

Can you check the REFIN voltage when the issue occurs?

Thanks

Qian

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