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LM323 Schematic ( PDF Datasheet ) - STMicroelectronics

Teilenummer LM323
Beschreibung 3A, 5V POSITIVE VOLTAGE REGULATOR
Hersteller STMicroelectronics
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Gesamt 11 Seiten
LM323 Datasheet, Funktion
LM123/LM223
LM323
THREE-TERMINAL 3A-5V
POSITIVE VOLTAGE REGULATORS
I OUTPUT CURRENT: 3A
I INTERNAL CURRENT AND THERMAL
LIMITING
I TYPICAL OUTPUT IMPEDANCE: 0.01
I MINIMUM INPUT VOLTAGE: 7.5V
I POWER DISSIPATION: 30W
DESCRIPTION
The LM123, LM223, LM323 are three-terminal
positive voltage regulators with a preset 5V output
and a load driving capability of 3A. New circuit
design and processing techniques are used to
provide the high output current without sacrificing
the regulation characteristics of lower current
devices.
The 3A regulator is virtually blowout proof.
Current limiting, power limiting and thermal
shut-down provide the same high level of reliability
obtained with these techniques in the LM209, 1A
regulator. An overall worst case specification for
the combined effects of input voltage, load
current, ambient temperature, and power
TO-220
TO-3
dissipation ensure that the LM123, LM223, LM323
will perform satisfactorily as a system element.
SCHEMATIC DIAGRAM
www.DataSheet4U.com
November 2005
Rev. 3
1/11






LM323 Datasheet, Funktion
LM123-LM223-LM323
TYPICAL APPLICATION
Figure 12: Basic 3A Regulator
C1 = Required if regulator is distant from filter capacitors.
CL = Regulator is stable with no load capacitor into resistive loads.
Figure 13: Trimming Output To 5V
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