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LTC3604 bảng dữ liệu(PDF) 5 Page - Linear Technology |
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LTC3604 bảng dữ liệu(HTML) 5 Page - Linear Technology |
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5 / 28 page ![]() LTC3633A/LTC3633A-1 5 3633a1f TYPICAL PERFORMANCE CHARACTERISTICS Efficiency vs Load Current Burst Mode Operation Efficiency vs Input Voltage Burst Mode Operation Load Regulation Oscillator Frequency vs Temperature Efficiency vs Load Current Burst Mode Operation Efficiency vs Load Current Forced Continuous Mode Operation Efficiency vs Load Current TJ = 25°C, VIN1 = VIN2 = 12V, fSW = 1MHz, L = 1μH unless otherwise noted. Oscillator Internal Set Frequency vs Temperature Reference Voltage vs Temperature 0.001 0 10 30 40 50 70 0.1 10 3633a G01 20 80 100 90 60 0.01 1 LOAD CURRENT (A) VOUT = 1.8V VIN = 20V VIN = 12V VIN = 8V VIN = 4V 0.001 0 10 30 40 50 70 0.1 10 3633a G02 20 80 100 90 60 0.01 1 LOAD CURRENT (A) VIN = 20V VIN = 12V VIN = 8V VIN = 4V VOUT = 1.8V 0.001 0 10 30 40 50 70 0.1 10 3633a G03 20 80 100 90 60 0.01 1 LOAD CURRENT (A) Burst Mode OPERATION FORCED CONTINUOUS OPERATION VOUT = 3.3V VOUT = 5V VOUT = 3.3V VOUT = 5V L = 2.2μH 4 65 70 75 85 8 20 3633a G05 60 90 100 95 80 6 1012141618 ILOAD = 10mA ILOAD = 100mA ILOAD = 1A ILOAD = 3A INPUT VOLTAGE (V) VOUT = 1.8V 0.0001 0.001 0 10 30 40 50 70 0.1 10 3633a G04 20 80 100 90 60 0.01 1 LOAD CURRENT (A) VIN = 20V VIN =15V VIN = 12V VIN = 8V VIN = 4V VOUT = 1.2V –50 0.597 0.599 50 150 3633a G06 0.595 0.601 0.605 0.603 25 –25 0 75 100 125 TEMPERATURE (°C) 0 0.0 0.4 1.5 3 3633a G07 –0.4 0.8 1.6 1.2 1 0.5 2 2.5 ILOAD (A) Burst Mode OPERATION FORCED CONTINUOUS VOUT = 1.8V –50 –8 –6 –4 –2 0 2 4 6 8 25 125 3633a G08 –10 10 0 –25 50 75 100 TEMPERATURE (°C) –50 1.6 1.8 2.0 2.2 2.4 25 125 3633a G09 1.4 2.6 0 –25 50 75 100 TEMPERATURE (°C) RT = INTVCC |
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