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LM43601A-Q1 bảng dữ liệu(PDF) 11 Page - Texas Instruments |
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LM43601A-Q1 bảng dữ liệu(HTML) 11 Page - Texas Instruments |
11 / 53 page Quasi Peak Limit Average Limit Frequency (MHz) dBuV 100 90 80 70 60 50 40 30 20 10 0.15 1 10 30 Measured Peak Emissions Quasi Peak Limit Average Limit Frequency (MHz) dBuV 100 90 80 70 60 50 40 30 20 10 0.15 1 10 30 Measured Peak Emissions EN 55022 Class B Limit Frequency (MHz) dBuV 80 70 60 50 40 30 20 10 30 Evaluation Board Emissions 1000 100 Vertical Polarization Horizontal Polarization EN 55022 Class B Limit Frequency (MHz) dBuV 80 70 60 50 40 30 20 10 30 Evaluation Board Emissions 1000 100 Vertical Polarization Horizontal Polarization 10000 100000 1000000 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 VIN (V) Load = 0.01 A Load = 0.1 A Load = 0.5 A Load = 1 A C001 10000 100000 1000000 5.0 5.2 5.4 5.6 5.8 6.0 6.2 6.4 6.6 6.8 7.0 VIN (V) Load = 0.01 A Load = 0.1 A Load = 0.5 A Load = 1 A C001 11 LM43601-Q1 www.ti.com SNVSAA0B – JULY 2015 – REVISED NOVEMBER 2017 Product Folder Links: LM43601-Q1 Submit Documentation Feedback Copyright © 2015–2017, Texas Instruments Incorporated Typical Characteristics (continued) Unless otherwise specified, VIN = 12 V, VOUT = 3.3 V, FS = 500 kHz, L = 18 µH, COUT = 100 µF, CFF = 33 pF. See Application Performance Curves for Bill of Materials (BOM) for other VOUT and FS combinations. VOUT = 3.3 V FS = 500 kHz Figure 19. Switching Frequency vs VIN in Dropout Operation VOUT = 5 V FS = 1 MHz Figure 20. Switching Frequency vs VIN in Dropout Operation VOUT = 3.3 V FS = 500 kHz IOUT = 1 A Measured on the LM43601QPWPEVM with default BOM. No input filter used. Figure 21. Radiated EMI Curve VOUT = 5 V FS = 500 kHz IOUT = 1 A Measured on the LM43601QPWPEVM with L = 27 µH, COUT = 66 µF, CFF = 33 pF. No input filter used. Figure 22. Radiated EMI Curve VOUT = 3.3 V FS = 500 kHz IOUT = 1 A Measured on the LM43601QPWPEVM with default BOM. EVM Input filter: Lin = 1 µH Cd = 47 µF CIN4 = 68 µF Figure 23. Conducted EMI Curve VOUT = 5 V FS = 500 kHz IOUT = 1 A Measured on the LM43601QPWPEVM with L = 18 µH, COUT = 66 µF, CFF = 33 pF. Input filter Lin = 1 µH Cd = 47 µF CIN4 = 68 µF Figure 24. Conducted EMI Curve |
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