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LM43602-Q1, LM43601-Q1 peak to peak output ripple voltage on Webench

Guru 20090 points

Replies: 1

Views: 697

Hello,

The Voutp-p simulation result of LM43602-Q1, LM43601-Q1 on Webench was about 100mV~120mV.
Is this result correct?
I think that this is error in webench.
If yes, could you please correct the Webench?
If not, please let me know the correct simulation value.

The followings are the simulation input conditions.

(1)
LM43601-Q1
Vin=28V
Vout=12V
Iout=300mA
Optimization Tuning is Highest Efficiency

(2)
LM43601-Q1
Vin=28V
Vout=12V
Iout=600mA
Optimization Tuning is Highest Efficiency

(3)
LM43602-Q1
Vin=28V
Vout=8.7V
Iout=1A
Optimization Tuning is Highest Efficiency



Best Regards,
Ryuji Asaka

  • Hi Ryuji,

    What is the error? Can you describe what you were expecting?
    The output ripple varies with a lot of parameters, but the amount of parallel resistance on the output and following the right measurement technique will dictate a good portion of the ripple you see.

    Please refer to this guide for a comprehensive guide on output ripple and expectations: e2e.ti.com/.../2243.understanding-measuring-and-reducing-output-voltage-ripple

    Thanks,
    Anston

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