LMV431B: lmv431

Raghavendra Kulkarni

Part Number: LMV431B

I am using LMV431BIMF/NOPB in series pass regulator for 2.5V output. Found that initial reference tolerance is not meeting the values defined in spec. The measured reference voltage was less than the lower spec. of the temperature range. However when I test the same part configured as shown in test circuit 32 of the datasheet meets the defined spec. Appreciate if someone explains why this difference and how to resolve this issue.

over 5 years ago

0 Marcoo Z over 5 years ago

TI__Mastermind 19500 points

Hi Raghavendra,

Can you send the me exact test schematic? Input and output voltages?

-Marcoo

0 Raghavendra Kulkarni over 5 years ago in reply to Marcoo Z

Prodigy 40 points

Input is 2.7 to 3V and output is 2.5V. I use mosfet for series pass element and connect the gate to 14V with 10K resistor and to cathode of the regulator. If possible send your email or call me for more details and further questions.

0 Abhinav.Sharma over 5 years ago in reply to Raghavendra Kulkarni

TI__Genius 9375 points

Raghavendra,

It seems like your issue has been taken offline. I am closing this thread for now, let us know if you need more help here.

Thanks,
Abhinav.

0 Raghavendra Kulkarni over 5 years ago in reply to Abhinav.Sharma

Prodigy 40 points

At present this issue has not been resolved.

Power management

Power management forum

LMV431B: lmv431