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LM61480-Q1: LM61480-Q1 schematic review

Guangyan Liu
Intellectual 2130 points
Part Number: LM61480-Q1

Dear Team

Good day 

Our customer use the LM61480-Q1 in their application , please help them them to review the schematic ,Please review it & provide feedbacks.

Wide_Input.pdf

BR,

Leon.liu

  • 0
    TI__Guru 50120 points

    Hi Leon,

    I've received your schematic and will provide feedback by end of day today.

    Regards,

    Jimmy 

  • 0 in reply to Jimmy Hua
    TI__Guru 50120 points

    Hi Leon,

    See feedback below:

    • I'd recommend changing output capacitance to 3 x 47uF, have a Rff of 4.99kOhm and Cff of 33pF for design robustness with improved transient performance following Table 9-3. 
    • The schematic currently has switching frequency of 400kHz and can go to 1.5MHz using Rt resistor. I'd suggest changing the input high frequency capacitors from 0.1uF to 0.47uF. This should help with high frequency attenuation.
    • Everything else looks okay.

    Regards,

    Jimmy