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LT8607 датащи(PDF) 7 Page - Analog Devices |
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LT8607 датащи(HTML) 7 Page - Analog Devices |
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7 / 24 page ![]() LT8607/LT8607B 7 Rev. D For more information www.analog.com Switching Frequency vs Temperature Burst Frequency vs Output Current RT = 18.2kΩ TEMPERATURE (°C) –50 –10 30 70 110 150 1975 1980 1985 1990 1995 2000 2005 2010 2015 2020 2025 8607 G19 SYNC = 0V OR LT8607 DFN OUTPUT CURRENT (mA) 0 25 50 75 100 125 0 250 500 750 1000 1250 1500 1750 2000 2250 2500 8607 G20 VIN = 12V L = 2.2µH VOUT = 3.3V TYPICAL PERFORMANCE CHARACTERISTICS Minimum Load to Full Frequency (SYNC Float to 1.9V) (MSOP Package) or LT8607B DFN Frequency Foldback Soft-Start Tracking (MSOP Package) Soft-Start Current vs Temperature (MSOP Package) Start-Up Dropout VIN UVLO vs Temperature Start-Up Dropout INPUT VOLTAGE (V) 0 5 10 15 20 25 30 35 40 45 0 25 50 75 100 125 150 8607 G21 VIN = 12V L = 2.2µH VOUT = 3.3V RT = 18.2kΩ SS VOLTAGE (V) 0 0.1 0.2 0.4 0.5 0.6 0.7 0.8 1.0 1.1 1.2 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 8607 G23 TEMPERATURE (°C) –50 –30 –10 10 30 50 70 90 110 130 150 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 8607 G24 VIN VOUT RLOAD = 50Ω INPUT VOLTAGE (V) 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 8607 G26 TEMPERATURE (°C) –50 –30 –10 10 30 50 70 90 110 130 150 2.00 2.25 2.50 2.75 3.00 3.25 8607 G25 VIN VOUT RLOAD = 6.66Ω INPUT VOLTAGE (V) 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 8607 G27 TA = 25°C, unless otherwise noted. FB VOLTAGE (V) 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0 250 500 750 1000 1250 1500 1750 2000 2250 2500 8607 G22 SYNC = 0V OR LT8607 DFN |
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