LDO's for Dummies

May 27, 2012 7 Replies

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Shown with 10mA pre-load, 100mA transient load.



Drops to 1.15V with 1A transient.



Thank You, Thank You, John "Tourette's by keyboard" Larkin, exemplary of Tulane graduates... I'll get a patent out of that one (for the CMOS version, bipolar shown).



Jason Betts and Ian Field should be so proud of you :-p ...Jim Thompson



-- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at

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| 1962 | I love to cook with wine. Sometimes I even put it in the food.


Are those your usual "behavioral" (aka "faked") waveforms? As long as you're faking waveforms, why didn't you get the damping right? Reduce the pulse rate so we can see the full ringdown.

Your sims of my LDO showed totally unreal and idiotic waveforms. Why?

John Larkin Highland Technology Inc www.highlandtechnology.com jlarkin at highlandtechnology dot com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom timing and laser controllers Photonics and fiberoptic TTL data links VME analog, thermocouple, LVDT, synchro, tachometer Multichannel arbitrary waveform generators

Nope, It's a 4-bipolar, 1-NMOS schematic.

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That's for real, I don't fake data like you do. And I'll submit myself to (real) peer review anytime, unlike you.

Why do you beat your wife?

I don't fake data... my waveforms show true hunting (which LTspice doesn't... until I decipher the code to force it to not _guess_ matrix points).

If you had half a brain, which you don't, you'd ponder the funny flat-top areas... then you'd look at ID of the NMOS, the you'd figure out the bang-bang scenario... but you not smart enough for that... you're a Tulane "graduate"... you learn nothing from a confusing simulation or scope trace ;-) ...Jim Thompson

| James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.

Ah, you forced the simulation to hunt. But it doesn't.

The scope trace is realty. The output and the gate waveforms are clean, no weird oscillations, no weird spikes like in your published simulation. No "hunting."

Scope waveforms sure don't confuse me. My simulation didn't either. The mess on your page 14 *is* confusing. I can't imagine what blunders you did to get that horror.

Do you stand by the waveforms on pages 13 and 14? You know, in the PDF that you keep snipping.

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John Larkin Highland Technology Inc www.highlandtechnology.com jlarkin at highlandtechnology dot com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom timing and laser controllers Photonics and fiberoptic TTL data links VME analog, thermocouple, LVDT, synchro, tachometer Multichannel arbitrary waveform generators

Larkin is blind as a bat because his head is fully stuffed up his own ass.

And ignorant as a rock.

And dumb as a stump.

Back to my Neyers Chardonnay ;-) ...Jim Thompson

| James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.

Do you stand by those waveforms or not?

Incidentally, if there was any doubt about you being an idiot...

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  1. What do the terms ?patent pending? and ?patent applied for? mean?

A. They are used by a manufacturer or seller of an article to inform the public that an application for patent on that article is on file in the United States Patent and Trademark Office. The law imposes a fine on those who use these terms falsely to deceive the public.

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Your "patent pending" claim is both wrong and illegal. You don't understand what those words mean.

So, do you stand by those waveforms or not?

John Larkin Highland Technology Inc www.highlandtechnology.com jlarkin at highlandtechnology dot com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom timing and laser controllers Photonics and fiberoptic TTL data links VME analog, thermocouple, LVDT, synchro, tachometer Multichannel arbitrary waveform generators

I stand by the waveforms.

"Patent Pending" is a loose term meaning I ain't gonna show you my tricks ;-)

You're a loser. Me? I design stuff on chips that work without tweaks. You don't ;-)

No amount of your mouthing will compensate for the fact that you did a poor job of analyzing what your "LDO" actually does.

Is your blood pressure up? Mine isn't. It stands at my normal

120/65.

Stroke away ;-) ...Jim Thompson

| James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.

Excellent. They are entirely bogus. The actual circuit does nothing like that nonsense.

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