Dear Team,

I am using a MAX20029ATIAV in my design for powering a Quad Tunneling GMSL2/1 to CSI-2 Deserializer.

MAX20029ATIAV is Quad Low-Voltage Step-Down DC-DC Converters.

My schematic attached here. May I know your valuable suggestions/comments?

 

Looks good. I have never used this part, I just followed the datasheet. I have two comments:
1. Shouldn't L140 be in series with LX1?
2. Remember that output caps must be ceramic.

 

Is that Chassis ground or Earth ground, as it is shown?

 

Shouldn't L140 be in series with LX1?

Yes,L140 needs to be in series with LX1.I will correct it.Thank you.

 

Is that Chassis ground or Earth ground, as it is shown?

That is Earth ground. Only one ground is present.

 

That is Earth ground. Only one ground is present.

Why would you need earth ground?

 

Why would you need earth ground?

Only one GND is present.I just called it as earth gnd

 

If this is just meant to be Chassis/power reference, then there is a symbol for it.
Using the Earth ground symbol indiscriminately causes confusion.

 

Only one GND is present.I just called it as earth gnd

That means it's actually connected to earth (such as through the safety ground wire in the mains connection).
If it is not, then use one of the other symbols, as suggested by Max.

 

I will change the symbol.

 

I will change the symbol.

Frankly speaking, Hoyyoth, I've done the same thing many times. When you are the only one using the schematic, the symbol you use doesn't matter. You know what it means.
Moreover, ground is somewhat nebulous in electronics. Circuitboard ground often gets connected ultimately to Earth, usually through chassis ground and the power cord. Local ground symbols are useful for manufacturing and assembly, but electrically they are often common (ideally).
EDIT: If you are going to distribute the schematic to anyone else, by all means follow standards. And get in the habit of using the correct symbol, even if it is only for your eyes.

 

I will change the symbol.

It is easy to be mislead when the likes of "Art of Electronics" uses it indiscriminately throughout the publication and should know better!
Very little point in having standards if no one abides by them.

 

In most of the designs what I have seen is, the below symbol is used for representing ground

 

In most of the designs what I have seen is, the below symbol is used for representing ground

That is the crux of the problem, it is being used to describe a function it was not intended for by definition.
It's official definition is Earth Ground.
All the Electronic schematic capture programs of any repute uses the terms as they are defined, e.g. KiCad etc defines it as 'Earth' !

Dr B Archambault's cartoon says it all.