THE Syn PWM Step-down regulator

[mitgrace]

Dear All :

Do es anone have design this product , How can I start to design this
, Can anyone have these thesis,paper , or Document , Thanks

 

[uladz55]

For what application do you need dc2dc?
Is it isolated or non-isolated?

Fhis is MAXIM example of buck regulator with SYNC input, with SYNCHRONOUS rectifier.

**broken link removed**

also u can check this sites

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https://www.smps.us/

 

[mitgrace]

MY application is on SOC design , Becasue Our system is 5v sysyem , We need 3.3 and 1.8 , But we don't want to use external regulator , So that we want to merger the DC - DC in the chip , Becasue I don't have experiment for these , so that I need some document . Do you have any experiments fot IC design . Or thesis for this topic , Thanks

 

[uladz55]

May be it's better to use LDO in ur case.

There is a lot of materials about dc2dc in sites, mentioned above.

My experiance in this field is not rich enough.
Now i'm preparing to design dc2dc for cell phone application and also try to collect more information.

 

[mitgrace]

Dear uladz55 :
Becsaue our application with on USB , so that We have power consider, SO that I just can select swithch mode power supply . Maybe we can discuss that . I will do the syn PWM , high effciely . What structure do you select ???

 

[uladz55]

dear mitgrace,

unfortunately, almost all mentioned in this forum dc2dc sites describe this topic from application and system point of view.
Threre is no so much information for chip design.

We can get real information for chip design from Datasheet of real IC.

So, at first I recommend to find appropriate real IC datasheets and analyse them.
U can defind structure, topology of ur design.

I'll do this way.

b/rgds

 

[mitgrace]

Dear uladz55:
Thanks your comment ,Do you know where can I find the IC information , maybe the web site or paper or thesisor ebbok , Thanks , Does others persons know that , Please tell me . Thanks

 

[rauol]

8) Hi mitgrace,
what you are looking for is the design of LDO regulators.
Just look at this link
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it has details about designing LDO in chip level.

 

[alphi]

I have much experience about "PWM Step-down regulator",but what "THE Syn PWM Step-down regulator",How to syn?

 

[uladz55]

mitgrace,

u can find this information from MAXIM, Linear Tech., and others.
for ex.

**broken link removed**

Can u put more details about ur design:
input, output voltage, output current, frequency, ... ?

b/rgds