1/24July 2003
■ OUTPUT CURRENT UP TO 1 00 mA
■ OUTPUT VOLTAGES OF 3.3; 5; 6; 8; 9; 10;
12; 15; 18; 20; 24V
■ THERMAL OVERLOAD PROTECTION
■ SHORT CIRCUIT PROTECTION
■ NO EXTERNAL COMPONENT S ARE
REQUIRED
■ AVAILABLE IN EITH ER ±5% (AC) OR ±10%
(C) SELECTION
DESCRIPTION
The L78L00 seri es of three-terminal positive
regulators employ internal current limiting a nd
therm al shutdown, making them essentially
indestructible. If adequate heat-sink is prov ided,
they can deliver up to 100 mA output curre nt. They
are intended as fixed voltage regulators in a wi de
range of applications including local or on-card
regulation for e limination of noise and distribution
problem s associated with single-point regulation.
In addition , they can be used with power pass
elements to make high- cu rren t voltage regulators.
The L78L00 series used as Zener diode/resistor
combination replace ment, offers an effective
outpu t impedance improvem ent of typically two
orders of magnitude, along with lowe r quiesc ent
current and lower noise.
L78L00
SERIES
POSITIVE VOLTAG E REGULATO RS
SCHEMATIC DIAGRAM
TO-92
SOT-89SO-8
