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TPS552872-Q1: Stability Plots

Ashika V
Prodigy 40 points
Part Number: TPS552872-Q1
Other Parts Discussed in Thread: TPS552872

Tool/software:

Hi All,

Please provide Stability plots for the below Part in the given conditions.

1.Buck-Boost converter, TPS552872
For the following conditions,
Cout= 189uF
Cin = 20.33uF
Lout = 10uH
DC resistance of Lout = 23 mohm
Vin = 9 to 32V
Vout = 12.6V
Iout = 1.681A
ESR of Cout = 1.273mohm
Freq = 1.869MHz 

Thank you.

  • 0
    TI__Genius 15670 points

    Hi Ashika,

    Thank you for reaching out. What is Lout? Can you provide part number of Cout? Including ceramic and E-cap. I am wondering why ESR is so small. ESR of E-cap cannot be paralleled with ESR of ceramic caps.

    Regards,

    Mulin