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LM2672M-5.0 датащи(PDF) 10 Page - National Semiconductor (TI) |
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LM2672M-5.0 датащи(HTML) 10 Page - National Semiconductor (TI) |
10 / 25 page Test Circuit and Layout Guidelines (Continued) LM2672 Series Buck Regulator Design Procedure (Fixed Output) PROCEDURE (Fixed Output Voltage Version) EXAMPLE (Fixed Output Voltage Version) To simplify the buck regulator design procedure, National Semiconductor is making available computer design software to be used with the SIMPLE SWITCHER line of switching regulators. LM267X Made Simple version 1.0 is available on Windows® 3.1, NT, or 95 operating systems. Given: Given: V OUT = Regulated Output Voltage (3.3V, 5V, or 12V) V OUT =5V V IN(max) = Maximum DC Input Voltage V IN(max) = 12V I LOAD(max) = Maximum Load Current I LOAD(max) = 1A 01293423 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 V REF = 1.21V Use a 1% resistor for best stability. FIGURE 3. Standard Test Circuits and Layout Guides Adjustable Output Voltage Versions www.national.com 10 |
Аналогичный номер детали - LM2672M-5.0 |
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Аналогичное описание - LM2672M-5.0 |
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