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LM2743 Folha de dados(PDF) 7 Page - Texas Instruments |
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LM2743 Folha de dados(HTML) 7 Page - Texas Instruments |
7 / 37 page 2V/div 1V/div 5V/div 100 ns/DIV LG SW HG 2V/div 1V/div 5V/div 100 ns/DIV HG SW LG 0 0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 4 1.200 1.201 1.202 1.203 1.204 1.205 1.206 1.207 1.208 1.209 1.210 OUTPUT CURRENT (A) TEMPERATURE ( oC) -55 -35 -15 85 105 125 5 25 45 65 520 540 560 580 600 620 640 TEMPERATURE ( oC) -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0 0.1 0.2 -40 -25 -10 5 80 95 110 125 20 35 50 65 TEMPERATURE ( oC) -40 -25 -10 5 80 95 110125 20 35 50 65 23.9 24 24.1 24.2 24.3 24.4 24.5 24.6 24.7 24.8 24.9 LM2743 www.ti.com SNVS276F – MAY 2004 – REVISED JANUARY 2012 Typical Performance Characteristics (continued) BOOT Pin Current vs Temperature for Internal Reference Voltage BOOT Voltage = 12V vs fSW = 300 kHz, FDS6898A FET, No-Load Temperature Frequency Output Voltage vs vs Temperature Output Current Switch Waveforms (HG Rising) Switch Waveforms (HG Falling) VCC = 3.3V, VIN = 5V, VOUT = 1.2V VCC = 3.3V, VIN = 5V, VOUT = 1.2V IOUT = 4A, CSS = 12nF, fSW = 300 kHz IOUT = 4A, CSS = 12nF, fSW = 300 kHz Copyright © 2004–2012, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: LM2743 |
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