LM3480 and stability

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Other Parts Discussed in Thread: LM3480

Hello, Does the LM3480 linear regulator require input and output caps to assure stability? http://www.ti.com/lit/ds/snvs011d/snvs011d.pdf ...the datasheet does not speak of this capacitance and stability. So is the LM3480 immune to instability?

over 11 years ago

0 Avi Chami1 over 11 years ago

Mastermind 7395 points

Nothing is said about stability, but all the performance characteristics are plotted with Cin = Cout = 0.1uF

0 Dennis Hudgins over 11 years ago in reply to Avi Chami1

TI__Prodigy 375 points

Special IC design considerations have to be taken into account to allow for no input/output cap linear regulators. For min capacitance this part was most likely characterized with the circuit shown in the typical applications section (0.1uF for input and output). I would not recommend going lower than these values.

Regards,

Dennis

0 Guido Gerlach over 10 years ago in reply to Dennis Hudgins

Hi at all.

I have another question regarding the LM3480 - and found no better place to write into! So, here's my question:

Is the LM3480 protected against reverse polarity of supply voltage? I found no information in the datasheet.

Thanks in advance,

Guido

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LM3480 and stability