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LM123 データシート(PDF) 1 Page - Texas Instruments |
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LM123 データシート(HTML) 1 Page - Texas Instruments |
1 / 13 page LM123, LM323-N, LM323A www.ti.com SNVS757B – MAY 2004 – REVISED NOVEMBER 2004 LM123/LM323A/LM323-N 3-Amp, 5-Volt Positive Regulator Check for Samples: LM123, LM323-N, LM323A The 3 amp regulator is virtually blowout proof. 1 FEATURES Current limiting, power limiting, and thermal shutdown 2 • Ensured 1% Initial Accuracy (A Version) provide the same high level of reliability obtained with • 3 Amp Output Current these techniques in the LM109 1 amp regulator. • Internal Current and Thermal Limiting No external components are required for operation of • 0.01 Ω Typical Output Impedance the LM123. If the device is more than 4 inches from the filter capacitor, however, a 1 μF solid tantalum • 7.5V Minimum Input Voltage capacitor should be used on the input. A 0.1 μF or • 30W Power Dissipation larger capacitor may be used on the output to reduce • P+ Product Enhancement tested load transient spikes created by fast switching digital logic, or to swamp out stray load capacitance. DESCRIPTION An overall worst case specification for the combined The LM123 is a three-terminal positive regulator with effects of input voltage, load currents, ambient a preset 5V output and a load driving capability of 3 temperature, and power dissipation ensure that the amps. New circuit design and processing techniques LM123 will perform satisfactorily as a system are used to provide the high output current without element. sacrificing the regulation characteristics of lower For applications requiring other voltages, see LM150 current devices. series adjustable regulator data sheet. The LM323A offers improved precision over the Operation is specified over the junction temperature standard LM323-N. Parameters with tightened range −55°C to +150°C for LM123, −40°C to +125°C specifications include output voltage tolerance, line for LM323A, and 0°C to +125°C for LM323-N. A regulation, and load regulation. hermetic TO-3 package is used for high reliability and low thermal resistance. Connection Diagram Metal Can Package Figure 1. See Package Number NDS 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2004, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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同様の説明 - LM123 |
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