LDO Vs BGR

[@LightningHelix101]

This video was very concise, and I like the format where you refer to videos rather than recovering their material. One more difference I would put between them is that the point of an LDO provides constant voltage were a BGR provides an exact voltage.

[@analoglayoutdesign2342]

Suppose BGR voltage is 1.25v and LDO output voltage is 2.5V (two times the reference voltage), Then, if BGR reference voltage changes by 10mv, that is instead of 1.25v or 1250mv, it changed to 1260mv or 1.26V, then LDO output voltage will vary by 20mV. Bcos there is a gain of 2 from reference to output. So LDO output will be 1.26x2=2.52v or 2520mV. LDO output voltage accuracy is function of BGR voltage accuracy also multiplied by gain. Hope this is clear.

[@rajathmvenugopal8313]

Thanks again, for the service to VLSI community sir.

[@analoglayoutdesign2342]

Hope video is informative..thou its concise

[@rajathmvenugopal8313]

Absolutely, it was informative.

[@Gkcptplm]

Hi miss your videos for a long time. Could you please make a video on PLL

[@analoglayoutdesign2342]

Hopefully yes.. May be vco initially

[@shivamgautam130]

Very informative Sir, Thank you

[@analoglayoutdesign2342]

You are welcome

[@vishwakumar8056]

Nice explanation. Can you please make a video on the EMIR Related topic( which net is prone to EM and IR)

[@analoglayoutdesign2342]

Sure will do

[@ramadevikothapalli8743]

This is very informative. Thank you sir

[@chinthalaadireddy2165]

Super explanation, thank you 😊 🎉

[@analoglayoutdesign2342]

Thanks for the feedback

[@amlande9528]

You've stopped making videos now, pls continue making such videos! All the videos are amazing.

[@analoglayoutdesign2342]

I will try.. I am also very busy with work.. these content creation takes lots of time

[@彭翰文]

Hope you can update the video as soon as possible, it is so helpful.

[@analoglayoutdesign2342]

Sure will try

[@raviselvans1963]

Hi, why u stopped making video. Kindly post new video..

[@analoglayoutdesign2342]

Will do soon

[@Lakshmiprashanth]

1 question, LDO has a vdd supply from mains or external; What is the VDD supply for BGR? is it from LDO or from externals. one more doubt, pad blocks normally draw current from bondpad pins like vdd or vss. Then in which blocks are we using LDO output supply?

[@analoglayoutdesign2342]

Bgr will also have ldo supply only. BGR generally will be subject to main supply. BGR will produce a temperature and power supply independent voltage reference. But BGR is not power supply. Its only voltage reference. LDO will make use of this reference voltage from BGR and generate reqd output voltage.

[@analoglayoutdesign2342]

Sometimes LDO itself is turned off to save power

[@3RiversSQ]

Thanks Sir, your way of teaching is very nice. I understands concepts easily from your videos. Can you please make some videos on Clocks and Decaps?

[@analoglayoutdesign2342]

Sure.. Will do..

[@Nhan12031995]

Hi Sir, can you make a video of overview of PMU power mangement unit and the importance of power sequencing in our IC?

[@analoglayoutdesign2342]

Ok will do.. but after few weeks

[@chaitanbruce9217]

@@analoglayoutdesign2342 current mirror part 2 video please

[@chaitanbruce9217]

@@analoglayoutdesign2342 some videos topics not completed properly please do the other parts