Hi,

Suggest me a control chip or design for a DC-DC buck converter.
Here is the specification.

 

Hi,

Suggest me a control chip or design for a DC-DC buck converter.
Here is the specification.

View attachment 272158

Comparing chips and matching your spec is pure grunt work. I respectfully suggest that you do that yourself.

 

This is a challenging design. Have you previously done anything like this?
It might be better to start with the basic components:

1. The inductor
2. The filter capacitor
3. The diode
4. The MODFET switch

Are you familiar with any SPICE simulators? The reason I ask is that they are useful for understanding the basics of SMPS design.
Last question. Are you sure that a buck topology is what you want?

 

Comparing chips and matching your spec is pure grunt work. I respectfully suggest that you do that yourself.

The chip is the easy part.

 

This is a challenging design. Have you previously done anything like this?
It might be better to start with the basic components:

1. The inductor
2. The filter capacitor
3. The diode
4. The MODFET switch

Are you familiar with any SPICE simulators? The reason I ask is that they are useful for understanding the basics of SMPS design.
Last question. Are you sure that a buck topology is what you want?

Thank you for reply here.

I got few parts,
TPS40061, TPS40060, LM5088, LM5088 External MOSFETs.
L4970A
PI3585-00-QFYZ
SIC461ED-T1-GE3

The design requirment looks for older technology.
Among mentioned parts, how about LM5088?
Take a look, LM5088, LM5088-Q1 Wide Input Range Non-Synchronous Buck Controller datasheet (Rev. J) (ti.com)

 

TI's website will design it for you:
https://webench.ti.com/power-designer/switching-regulator