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LP5951: Thermal metric psi for SC70

Paul Antunes
Intellectual 2550 points
Part Number: LP5951

Hello,

from lp5951 datasheet, psi=1.3degC/W for SC70 package and 11degC/W fro SOT23 version.

can you conform psi metric for SC70 is correct ? i would assume it is 13 in place of 1.3.

best regards,

Paul

  • 0
    TI__Guru 55940 points

    Hi Paul,

    The Thermal Information table metrics for both the SC70 and SOT23 packages of LP5951 are consistent with our thermal models.  These metrics are modeled on a JEDEC Hi-K board.  The following Application Report provides additional information on these metrics and assumptions made:

    Please keep in mind that application specific conditions such as board layout will impact the thermal performance of a linear regulator.  The following Application Report details how board layout can impact thermal performance.

    http://www.ti.com/lit/an/slvae85/slvae85.pdf

    Very Respectfully,

    Ryan