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LM338 датащи(PDF) 1 Page - Linear Technology |
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LM338 датащи(HTML) 1 Page - Linear Technology |
1 / 14 page LT138A/LT338A LM138/LM338 1 138afd For more information www.linear.com/LT138A Typical applicaTion FeaTures applicaTions DescripTion 5A Positive Adjustable Voltage Regulator The LT®138A series of adjustable regulators provide 5A output current over an output voltage range of 1.2V to 32V. The internal voltage reference is trimmed to less than 1%, enabling a very tight output voltage. In addition to excellent line and load regulation, with full overload protection, the LT138A incorporates new current limit- ing circuitry allowing large transient load currents to be handled for short periods. Transient load currents of up to 12A can be supplied without limiting, eliminating the need for a large output capacitor. The LT138A is an improved version of the popular LM138 with improved circuit design and advanced process tech- niques to provide superior performance and reliability. The graph below shows the significant improvement in output voltage tolerance achieved by using the LT138A or LT338A. Parallel Regulators for Higher Current* n Guaranteed 1% Initial Tolerance n Guaranteed 0.3% Load Regulation n Guaranteed 5A Output Current n 100% Thermal Limit Burn-In n 12A Transient Output Current n High Power Linear Regulator n Battery Chargers n Power Driver n Constant-Current Regulator Output Voltage Error LT338A 0.01Ω∗∗ VIN VIN THIS CIRCUIT WILL NOT WORK WITH LM VERSION DEVICES CURRENT SHARING RESISTORS DEGRADE REGULATION TO 1% * ** VOUT ADJ LT350A VIN 138/338 TA01 121Ω 1% 5V 8A VOUT ADJ 0.016Ω** 365Ω 1% OUTPUT VOLTAGE (V) 1 0 3 5 7 10 10 100 138A/338A TA02 1 4 6 9 12 11 8 2 2% RESISTORS 2% RESISTORS 1% RESISTORS 1% RESISTORS LM338 LM338 LT338A LT338A L , LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. OBSOLETE: FOR INFORMATION PURPOSES ONLY Contact Linear Technology for Potential Replacement |
Аналогичный номер детали - LM338 |
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Аналогичное описание - LM338 |
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