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LTC3775IUDTRPBF Datasheet(PDF) 5 Page - Linear Technology |
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LTC3775IUDTRPBF Datasheet(HTML) 5 Page - Linear Technology |
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5 / 32 page  LTC3775 5 3775f TYPICAL PERFORMANCE CHARACTERISTICS Efficiency vs Load Current Efficiency vs Input Voltage Load Regulation Line Regulation FB Voltage vs Temperature Load Step in Forced Continuous Mode Positive Load Step in Forced Continuous Mode Negative Load Step in Forced Continuous Mode Load Step in Pulse-Skipping Mode LOAD CURRENT (A) 30 90 100 20 10 80 50 70 60 40 0.01 1 10 100 3775 G01 0 0.1 VIN = 12V VOUT = 1.2V SW FREQ = 500kHz FIRST PAGE CIRCUIT PULSE-SKIPPING MODE CONTINUOUS MODE INPUT VOLTAGE (V) 4 40 50 60 70 80 100 8 12 16 20 3775 G02 24 28 90 15A LOAD 1A LOAD VOUT = 1.2V CONTINUOUS MODE SW FREQ = 500kHz FIRST PAGE CIRCUIT LOAD CURRENT (A) 0 1.194 1.196 1.198 1.200 1.202 48 12 16 3775 G03 1.204 1.206 26 10 14 VIN = 12V SW FREQ = 500kHz FIRST PAGE CIRCUIT INPUT VOLTAGE (V) 4 1.194 1.196 1.198 1.200 1.202 1.206 8 12 16 20 3775 G02 24 28 1.204 VOUT = 1.2V LOAD = 1A FIRST PAGE CIRCUIT TEMPERATURE (°C) –50 601 602 603 25 75 3775 G05 600 599 –25 0 50 100 125 598 597 VOUT(AC) 100mV/DIV IL 10A/DIV ILOAD 10A/DIV 50μs/DIV 3775 G06 VIN = 12V VOUT = 1.2V LOAD STEP = 0A TO 10A TO 0A MODE/SYNC = 0V SW FREQ = 500kHz FIRST PAGE CIRCUIT VOUT(AC) 100mV/DIV VSW 20V/DIV IL 10A/DIV ILOAD 10A/DIV 5μs/DIV 3775 G07 VIN = 12V VOUT = 1.2V LOAD STEP = 0A TO 10A MODE/SYNC = 0V SW FREQ = 500kHz FIRST PAGE CIRCUIT VOUT(AC) 100mV/DIV VSW 20V/DIV IL 10A/DIV ILOAD 10A/DIV 5μs/DIV 3775 G08 VIN = 12V VOUT = 1.2V LOAD STEP = 10A TO 0A MODE/SYNC = 0V SW FREQ = 500kHz FIRST PAGE CIRCUIT VOUT(AC) 100mV/DIV IL 10A/DIV ILOAD 10A/DIV 50μs/DIV 3775 G09 VIN = 12V VOUT = 1.2V LOAD STEP = 1A TO 11A TO 1A MODE/SYNC = INTVCC SW FREQ = 500kHz FIRST PAGE CIRCUIT |
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