1
Three-Terminal
Positive-Voltage Regulator
NIKO-SEM
L78L18
MAR-04-2002
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 single-
point 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 mA of output current. The inter-
nal limiting and thermal shutdown features of
these regulators male them essentially immune
to overload. When used as a replacement for a
zener diode-resistor combination, an effective
improvement in output impedance can be obtain
-ed together with lower-bias current.
FEATURES
l 3-terminal regulators
l Output current up to 100 mA
l No external component
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
L78L18N
Package
TO-92
Marking
78L18
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