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LM78L05

Part Number	LM78L05
Manufacturer	National Semiconductor
Description	3-Terminal Positive Regulators
Published	Mar 22, 2005
Detailed Description	LM78LXX Series 3-Terminal Positive Regulators February 2005 LM78LXX Series 3-Terminal Positive Regulators General De...
Datasheet	LM78L05 PDF File

Overview

LM78LXX Series 3-Terminal Positive Regulators February 2005 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 usually 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 regulation.
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 deliver 100mA output current.
Current limiting is included to limit the peak output current to a safe value.
Safe area protection for the output transistors is provided to limit inter- nal power dissipation.
If internal power dissipation becomes too high for the heat sinking provided, the thermal shutdown circuit 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 100mA 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 n See AN-1112 for micro SMD considerations Connection Diagrams SO-8 Plastic (M) (Narrow Body) (TO-92) Plastic Package (Z) 00774402 Top View 8-Bump micro SMD 00774403 Bottom View micro SMD Marking Orientation 00774424 Top View (Bump Side Down) ww© w20.
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