AMC2596 Datasheet, PDF (9/12 Pages) List of Unclassifed Manufacturers – 150 KHz, 3A STEP DOWN VOLTAGE REGULATOR

AMC2596
heat sink is required. When using a heat sink, the junction temperature rise will be reduced by the following:
∆T_J = P_D × (θ_JC + θ_interface + θ_{Heat sink});
As one can see from the above, it is important to choose an heat sink with adequate size and thermal resistance, such
that to maintain the regulator’s junction temperature below the maximum operating temperature.
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AMC2596_A (LF) May 2005