Data Sheet

This is information on a product in full production.
September 2012 Doc ID 2145 Rev 21 1/33
33
L78LxxAB,
L78LxxAC, L78LxxC
Positive voltage regulators
Datasheet — production data
Features
■ Output current up to 100 mA
■ Output voltages of 3.3; 5; 6; 8; 9; 10; 12; 15; 18;
24 V
■ Thermal overload protection
■ Short-circuit protection
■ No external components are required
■ Available in either ± 4% (AC) or ± 8% (C)
selection
Description
The L78Lxx series of three-terminal positive
regulators employ internal current limiting and
thermal shutdown, making them essentially
indestructible. If adequate heat-sink is provided,
they can deliver up to 100 mA output current.
They are intended as fixed voltage regulators in a
wide range of applications including local or 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. The L78Lxx series used as
Zener diode/resistor combination replacement,
offers an effective output impedance improvement
of typically two orders of magnitude, along with
lower quiescent current and lower noise.
SOT-89
TO-92
SO-8
Table 1. Device summary
Part numbers
L78L33C L78L08AC L78L15C
L78L33AC L78L08AB L78L15AC
L78L33AB L78L09C L78L15AB
L78L05C L78L09AC L78L18C
L78L05AC L78L09AB L78L18AC
L78L05AB L78L10AC L78L24C
L78L06AC L78L12C L78L24AC
L78L06AB L78L12AC L78L24AB
L78L08C L78L12AB
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