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voltage regulators. L7805 Datasheet |
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L78xx, L78xxC
L78xxAB, L78xxAC
Positive voltage regulator ICs
Features
■ Output current up to 1.5 A
■ Output voltages of 5; 6; 8; 8.5; 9; 12; 15; 18;
24 V
■ Thermal overload protection
■ Short circuit protection
■ Output transition SOA protection
■ 2 % output voltage tolerance (A version)
■ Guaranteed in extended temperature range
(A version)
TO-220
Description
The L78xx series of three-terminal positive
regulators is available in TO-220, TO-220FP, TO-
3, D²PAK and DPAK packages and several fixed
output voltages, making it useful in a wide range
of applications.
These regulators can provide local on-card
regulation, eliminating the distribution problems
associated with single point regulation. Each type
employs internal current limiting, thermal shut-
down and safe area protection, making it
essentially indestructible. If adequate heat sinking
is provided, they can deliver over 1 A output
current. Although designed primarily as fixed
voltage regulators, these devices can be used
with external components to obtain adjustable
voltage and currents.
TO-3
Table 1. Device summary
Part numbers
L7805
L7805C
L7805AB
L7805AC
L7806C
L7806AB
L7806AC
L7808C
L7808AB
L7808AC
L7885C
L7809C
L7809AB
L7809AC
L7812C
L7812AB
L7812AC
L7815C
Datasheet − production data
TO-220FP
DPAK
D²PAK
L7815AB
L7815AC
L7818C
L7824C
L7824AB
L7824AC
May 2012
This is information on a product in full production.
Doc ID 2143 Rev 29
1/57
www.st.com
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Contents
Contents
L78xx, L78xxC, L78xxAB, L78xxAC
1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.1 Design consideration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7 Typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
8 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
9 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
2/57 Doc ID 2143 Rev 29
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