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LM1108F Fiches technique(PDF) 4 Page - HTC Korea TAEJIN Technology Co. |
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LM1108F Fiches technique(HTML) 4 Page - HTC Korea TAEJIN Technology Co. |
4 / 4 page 300mA CMOS L.D.O. Regulator LM1108 HTC - 4 - EQUATION 2-2: Table 2-1 shows various values of θJA for the LM1108 versus board copper area. TABLE 2-1 : THERMAL RESISTANCE GUIDELINES FOR LM1108 Equation 2-1can be used in conjunction with Equation 2-2 to ensure regulator thermal operation is within limits. For example: In this example, the LM1108 dissipates a maximum of 260mW; below the allow able limit of 508 mW. In a similar manner, Equation 2-1 and Equation 2-2 can be used to calculate maximum current and/or input voltage limits. For example, the maximum allowable V IN, is found by sustituting the maximum allowable power dissipation of 508 mW into Equation 2-1, from which VINMAX = 4.6V. |
Numéro de pièce similaire - LM1108F |
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Description similaire - LM1108F |
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