L78L18
L78L18 is Three-Terminal Positive-Voltage Regulator manufactured by Unknown Manufacturer.
FEATURES
GENERAL DESCRIPTION
This Series of fixed-voltage monolithic integrated circuit voltage regulators is designed for a wide range of applications. These applications include on-card regulation for elimination of noise and distribution problems associated with singlepoint regulation. In addition, they can be used with power-pass elements to make high-current voltage regulators. One of these regulators can deliver up to 100 m A of output current. The internal limiting and thermal shutdown features of these regulators male them essentially immune to overload. When used as a replacement for a zener diode-resistor bination, an effective improvement in output impedance can be obtain -ed together with lower-bias current. l 3-terminal regulators l Output current up to 100 m A l No external ponent l Internal thermal overload protection l Internal short-circuit current limiting
APPLICATIONS l Linear regulator l Instrumentation l Switching power supplies l PCs, Industrial equipment
PIN CONFIGURAT IONS
DEVICE SELECTION GUIDE
Device Package Marking L78L18N TO-92 78L18
MAR-04-2002
Data Sheet 4 U .
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NIKO-SEM
Three-Terminal Positive-Voltage Regulator
ABSOLUTE MAXIMUM RATINGS
PARAMETER Input Voltage
- V I Continuous total power dissipation Storage Temperature Range
- TSTG Junction Temperature
- TJ Lead Temperature (Soldering, 10 Seconds)
- TL VALUE 35V (See Note 1) -55 to +150 °C 125 °C 260 °C
Note1: To avoid exceeding the design maximum virtual junction temperature, three ratings should not be exceeded. Due to variations in individual device electrical characteristics and thermal resistance, the built-in thermal overload protection may be activated at power levels slightly above or below the rated dissipation.
DISSIPATION RATING TABLE 1
- FREE-AIR TEMPERATURE
PACKAGE TO-92 TA ≤ 25°C POWER RATING 650 m W DERATING FACTOR 6.2 m W/°C DERATING ABOVE TA 25 °C TA = 70°C POWER RATING 350 m W
† The TO-92 package dissipation rating is based on thermal...