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LM2671MX-5.0 데이터시트(PDF) 10 Page - Texas Instruments |
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LM2671MX-5.0 데이터시트(HTML) 10 Page - Texas Instruments |
10 / 31 page LM2671 SNVS008K – SEPTEMBER 1998 – REVISED APRIL 2013 www.ti.com TEST CIRCUIT AND LAYOUT GUIDELINES CIN - 22 μF, 50V Tantalum, Sprague “199D Series” COUT - 47 μF, 25V Tantalum, Sprague “595D Series” D1 - 3.3A, 50V Schottky Rectifier, IR 30WQ05F L1 - 68 μH Sumida #RCR110D-680L CB - 0.01 μF, 50V Ceramic Figure 22. Standard Test Circuits and Layout Guides Fixed Output Voltage Versions CIN - 22 μF, 50V Tantalum, Sprague “199D Series” COUT - 47 μF, 25V Tantalum, Sprague “595D Series” D1 - 3.3A, 50V Schottky Rectifier, IR 30WQ05F L1 - 68 μH Sumida #RCR110D-680L R1 - 1.5 k Ω, 1% CB - 0.01 μF, 50V Ceramic For a 5V output, select R2 to be 4.75 k Ω, 1% where VREF = 1.21V Use a 1% resistor for best stability. Figure 23. Standard Test Circuits and Layout Guides Adjustable Output Voltage Versions Application Hints The LM2671 provides all of the active functions required for a step-down (buck) switching regulator. The internal power switch is a DMOS power MOSFET to provide power supply designs with high current capability, up to 0.5A, and highly efficient operation. 10 Submit Documentation Feedback Copyright © 1998–2013, Texas Instruments Incorporated Product Folder Links: LM2671 |
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