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STMicroelectronics
STMicroelectronics

78L33 Datasheet

Positive voltage regulators


78L33 Datasheet Preview


L78L
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% (A) or ± 8% (C)
selection
Description
The L78L 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 L78L series used as
Zener diode/resistor combination replacement,
offers e improvement along with lower quiescent
current and lower noise.
June 2016
DocID2145 Rev 26
This is information on a product in full production.
1/45
www.st.com
Page 1

Contents
Contents
L78L
1 Diagram............................................................................................ 3
2 Pin configuration ............................................................................. 4
3 Maximum ratings ............................................................................. 5
4 Electrical characteristics ................................................................ 6
5 Typical performance ..................................................................... 25
6 Typical application ........................................................................ 27
7 Package information ..................................................................... 29
7.1 TO-92 package information............................................................. 29
7.2 TO-92 packing information .............................................................. 30
7.3 TO-92 Ammopak packing information............................................. 32
7.4 SO-8 package information .............................................................. 34
7.5 SO-8 packing information................................................................ 36
7.6 SOT-89 package information .......................................................... 37
7.7 SOT-89 packing information............................................................ 40
8 Ordering information..................................................................... 41
9 Revision history ............................................................................ 44
2/45 DocID2145 Rev 26
Page 2

L78L
1 Diagram
Figure 1: Schematic diagram
Diagram
DocID2145 Rev 26
3/45
Page 3
Part Number 78L33
Manufactur STMicroelectronics
Description Positive voltage regulators
Total Page 30 Pages
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