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1 / 8 page 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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