The LM/LMC positive voltage regulator features the ability to source 1A of output current with a dropout volt- age of typically V and a maximum of. The LM LMC positive voltage regulator features the ability to source 1A of output current with a dropout voltage of typically 0 5V and a maximum of 1V. The LM positive-voltage regulator features the Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

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National Semiconductor

xatasheet Read 1 time previous topic – next topic. I read the data sheet for the LM and understand I need two capacitors one on the input and one on the output.

They need to be rated above my voltages also. Now my confusion starts with ESR and capacitor type Would something like this work? If adtasheet then what am I looking for exactly. Because they don’t list ESR on data sheets or at least the ones I’m looking at. Thanks for your time.


JohnLincoln God Member Posts: I live in Lincoln. The dafasheet you linked to is 22pf, which is only one millionth of the specified value.

Sorry, that was my mistake.

I was reading datashfet on my break and was in a hurry. Anything with that rating or higher is fine. As a general rule, the higher the voltage rating the larger the size so a 0.

I was using the above to supply 5v to my Atmegap-pu project in my automotive environment for controlling the signal that turns on some lights via Mosfet. I just thought the OKIsr might be a little overkill in terms of cost for other similar stuff down the road.

LM datasheet & applicatoin notes – Datasheet Archive

I hope you know that the 2 are datasheeet properly the same parts, both are 5V regulators but the OKI is switching power supply, while the LM is linear one, the main difference for your use is heat dissipated. Is your automotive environment 12V or 24V? In second case the OKI is highly suggested.


With such low power involved you can go with the linear regulator, you shouldn’t have any problem. My note started from the fact that both regulator are rated at 24V input and capable of 1A, and you didn’t initially specify yours needs.