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LM323_02 Datasheet(PDF) 1 Page - ON Semiconductor

Part No. LM323_02
Description  3.0 A Positive Voltage Regulators
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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3.0 A Positive Voltage
Regulators
The LM323,A are monolithic integrated circuits which supply a
fixed positive 5.0 V output with a load driving capability in excess of
3.0 A. These three–terminal regulators employ internal current
limiting, thermal shutdown, and safe–area compensation. The
A–suffix is an improved device with superior electrical
characteristics and a 2% output voltage tolerance. These regulators
are offered with a 0
° to +125°C temperature range in a low cost
plastic power package.
Although designed primarily as a fixed voltage regulator, these
devices can be used with external components to obtain adjustable
voltages and currents. These devices can be used with a series pass
transistor to supply up to 15 A at 5.0 V.
Output Current in Excess of 3.0 A
Available with 2% Output Voltage Tolerance
No External Components Required
Internal Thermal Overload Protection
Internal Short Circuit Current Limiting
Output Transistor Safe–Area Compensation
Thermal Regulation and Ripple Rejection Have Specified Limits
Simplified Application
A common ground is required between the input and the output voltages. The
input voltage must remain typically 2.5 V above the output voltage even during
the low point on the input ripple voltage.
*Cin is required if regulator is located an appreciable
*distance from power supply filter. (See Applications
*Information for details.)
**CO is not needed for stability; however, it does
**improve transient response.
LM323, A
Input
Cin*
0.33µF
CO**
Output
ON Semiconductort
© Semiconductor Components Industries, LLC, 2002
January, 2002 – Rev. 2
1
Publication Order Number:
LM323/D
SEMICONDUCTOR
TECHNICAL DATA
3–AMPERE, 5 VOLT
POSITIVE
VOLTAGE REGULATORS
ORDERING INFORMATION
Pin 1. Input
2. Ground
3. Output
T SUFFIX
PLASTIC PACKAGE
CASE 221A
Heatsink surface is connected to Pin 2.
Device
Operating
Temperature
Range
Package
LM323T
LM323AT
TJ = 0° to +125°C
Plastic
Power
Output
Voltage
Tolerance
4%
2%
LM323, LM323A
3
1
2




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