REF2030: capacitive load

ken

Part Number: REF2030

I have questions on the capacitive load of device ref2030. It's that ok to set the output capacitor to 88uF which over the max value 10uF specified by the datasheet. What will happen if the capacitive load is increased. Unstable control loop, Output oscilate, or other problem?

over 1 year ago

0 Masoud Beheshti61 over 1 year ago

TI__Genius 15891 points

Hello,

Exceeding the specified capacitive load will result in unstable operation and is not recommended. Thanks.

0 ken over 1 year ago in reply to Masoud Beheshti61

Prodigy 10 points

Agree! But I still need more detail such the frequency response plot or information of the unity gain bandwidth and output impedance so that I can evaluate the stability to compensate with an extra zero. I can't find the information I need in the datasheet.

0 Jesse Villanueva over 1 year ago in reply to ken

TI__Genius 14630 points

Hi Ken,

Increasing the CL beyond the datasheet recommendation will move the poles of the devices. Depending on the CL value the pole location may vary. This is not within recommended application so we do not test nor have data.

Jesse

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REF2030: capacitive load