LP2951: Configuration for LDO

Ethan Goldstein

Prodigy 90 points

Part Number: LP2951

Hello All,

A few questions about my design for the LDO.

Is the pullup on ERROR required? Can I just leave this pin floating?
Is this LDO configured for basic functional operation?

Thank You,

Ethan

over 3 years ago

+1 Ethan Goldstein over 3 years ago

Prodigy 90 points

0 Srikanth Lolla Venkata over 3 years ago in reply to Ethan Goldstein

TI__Genius 12960 points

Hello Ethan,

If the Error functionality is not being used, you may leave this pin floating. Your schematic suggests that you wish to use the device in the Adjustable configuration with the help of external resistors to get V_OUT = 12.5V. If so, please ensure that the OUT & SENSE pins are not connected to each other. Please also ensure that the V_TAP and FEEDBACK pins are not connected to each other. This would ensure that the internal resistor network is disconnected in the device. The SENSE and V_TAP pins may be left floating. The remaining part of the schematic looks fine. Thanks!

Regards,

Srikanth

0 Ethan Goldstein over 3 years ago in reply to Srikanth Lolla Venkata

Prodigy 90 points

Thank You!

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LP2951: Configuration for LDO