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The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
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4-1. Calculating the power dissipation of a load switch IC and heat dissipation

Figure 4-1. Calculating the power dissipation of a load switch IC and heat dissipation

The power dissipation of a load switch IC can be calculated as shown above.
The on-resistance of the load switch IC depends on temperature. Use an appropriate on-resistance value according to the actual usage temperature.
Note that the power dissipation and thermal resistance values in the datasheet are the values under the specified board conditions. It is therefore necessary to evaluate load switch ICs carefully to ensure that they work properly under actual usage conditions.

Application note: Basics of Load Switch ICs

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