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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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LM78L Fiches technique(PDF) 1 Page - National Semiconductor (TI) |
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LM78L Fiches technique(HTML) 1 Page - National Semiconductor (TI) |
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1 / 12 page  LM78LXX Series 3-Terminal Positive Regulators General Description The LM78LXX series of three terminal positive regulators is available with several fixed output voltages making them useful in a wide range of applications. When used as a zener diode/resistor combination replacement, the LM78LXX usu- ally results in an effective output impedance improvement of two orders of magnitude, and lower quiescent current. These regulators can provide local on card regulation, eliminating the distribution problems associated with single point regula- tion. The voltages available allow the LM78LXX to be used in logic systems, instrumentation, HiFi, and other solid state electronic equipment. The LM78LXX is available in the plastic TO-92 (Z) package, the plastic SO-8 (M) package and a chip sized package (8-Bump micro SMD) using National’s micro SMD package technology. With adequate heat sinking the regulator can de- liver 100 mA output current. Current limiting is included to limit the peak output current to a safe value. Safe area pro- tection for the output transistors is provided to limit internal power dissipation. If internal power dissipation becomes too high for the heat sinking provided, the thermal shutdown cir- cuit takes over preventing the IC from overheating. Features n LM78L05 in micro SMD package n Output voltage tolerances of ±5% over the temperature range n Output current of 100 mA n Internal thermal overload protection n Output transistor safe area protection n Internal short circuit current limit n Available in plastic TO-92 and plastic SO-8 low profile packages n No external components n Output voltages of 5.0V, 6.2V, 8.2V, 9.0V, 12V, 15V Connection Diagrams SO-8 Plastic (M) (Narrow Body) DS007744-2 Top View 8-Bump micro SMD DS007744-24 Top View (Bump Side Down) (TO-92) Plastic Package (Z) DS007744-3 Bottom View micro SMD Marking Orientation DS007744-33 Top View January 2000 © 2000 National Semiconductor Corporation DS007744 www.national.com |
Numéro de pièce similaire - LM78L |
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Description similaire - LM78L |
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