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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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The maximum junction temperature of an LDO can be calculated from its power consumption and thermal resistance using Equations 1 and 2.
For example, suppose that VIN=1.5 V, VOUT=1 V, IOUT=200 mA, IB=20 μA, PD=0.6 W, and Ta=60°C. Then, the maximum junction temperature of the LDO can be calculated as follows.
Allow a sufficient temperature margin for the thermal design of an LDO application.
Also see the following documents and web page for a description of junction temperature:
For other LDO regulators, visit the main web page of LDO regulators at: