LM51581: circuit check request

Gary Teng

Part Number: LM51581
Other Parts Discussed in Thread: LM5158

Hi sir,

could help us check whether this schematic need to be modify? or have any risk and problem, thanks for your support and learn from you.

Vin 40v~54v, Vout= 54v/ 0.42A

Feng Ji over 1 year ago

Hi Gary,

Please selected the components using LM5158 Quickstart Calculator for Boost Regulator Design (www.ti.com/.../SNVR511).

What is the purpose of D37?

The voltage rating of R51 is higher than 50V, you may split it into 2 resistors.

Best Regards,

Feng Ji

Gary Teng over 1 year ago in reply to Feng Ji

Genius 5840 points

Hi Sir,

let me ask the customer,

what is the use of D37_TVS.. i think it is use to clamp the input and output voltage?

ok~R51, we will note to the voltage rating of R51. thanks your help and support.

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