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TPS82130: Power Dissipation

Part Number: TPS82130

Hello, I'm looking for figures on the Power Dissipation of the TPS82130 vs output current.

i'm switching from LMZ21701 to TPS82130 due to higher power requirements but there is no info in the TPS datasheet covering this which was available in the LMZ datasheet

Regards Arne Maathuis

  • Hi Arne,

    The power dissipation is just what is left over from the efficiency curves. So, take the output power, divide by efficiency and then subtract the output power to get the loss.

    This design guide shows an example of this, but it uses the TPS82130 in an inverting configuration so the actual values will be different than when using it as a normal buck: www.ti.com/.../tidud32.pdf

    As well, I hope you already found this app note on the product page which discusses thermals in detail: www.ti.com/.../slyt724.pdf

    Chris Glaser

    Texas Instruments

    ________________________________

    TPS62147 – New 17Vin, 2A buck with forced-PWM option for low output ripple.
    1% accuracy over temperature, 0.8V to 12Vout, pin-compatible to 4A (TPS62136), for industrial applications.

  • In reply to Chris Glaser:

    Well, that was quite obvious, scanning the datasheets for certain figures makes you forget the basics....

    thank you for the answer

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