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LM323AT
3A, 5V, Positive Voltage Regulator
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 ApplicationA 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 doesInput
Cin*
0.33μF CO**
Output
