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CSD95490Q5MC: LSET resistor design & VOS pin layout suggestion

Part Number: CSD95490Q5MC

Hi there,

As title, I got two questions regarding CSD95490.

1. Could you please advise how to design the LSET resistance?

2. What’s the layout rule for CSD95490Q5MC VOS pin? Should we route it close to the load?

Thank you!
 

Best regards,

Roy Hsu

  • Roy,
    I'm looking into this - should have an answer for you within 24 hours.

    Best Regards!

    Brett Barr

    Product Marketing Engineer

  • In reply to Brett Barr1:

    Roy,
    Here is the equation for selecting LSET:

    RLSET [kΩ] = 2.04e-9 * L4 – 2.48e-6 * L3 +1.79e-3 * L2 + 3.99e-1 * L + 1.61e1
    L - Output Inductor Value in nH
    RLSET - Ideal Resistor value to connect from LSET terminal to GND (Closest standard resistor value may be used)

    VOS should be connected to the output at the inductor pad.

    Best Regards!

    Brett Barr

    Product Marketing Engineer

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