LM123| Datasheet

LM123, LM323, LM323K, LM323T

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LM323
Three-terminal 3 A adjustable voltage regulators
Features

Output current: 3 A Internal current and thermal limiting Typical output impedance: 0.01 W Minimum input voltage: 7.5 V Power dissipation: 30 W
TO-3 TO-220

Description
The LM323 are three-terminal positive voltage regulators with a preset 5 V output and a load driving capability of 3 A. New circuit design and processing techniques are used to provide the high output current without sacrificing the regulation characteristics of lower current devices. The 3 A regulator is virtually blowout proof. Current limiting, power limiting and thermal shutdown provide the same high level of reliability obtained with these techniques in the LM209, 1 A regulator. An overall worst case specification for the combined effects of input voltage, load current, ambient temperature, and power dissipation ensure that the LM323 will perform satisfactorily as a system element.

Table 1.

Device summary
Order codes Temperature range TO-220 LM323T TO-3 LM323K Rev 4 0 C to 125 C 1/15
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February 2008