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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC3544BEUD датащи(PDF) 4 Page - Linear Technology |
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LTC3544BEUD датащи(HTML) 4 Page - Linear Technology |
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4 / 16 page  LTC3544B 4 3544bfa TYPICAL PERFORMANCE CHARACTERISTICS VREF vs Temperature at 2.25V, 3.6V, 5.5V Switching Frequency vs Supply Voltage and Temperature Efficiency vs Load Current 300mA Channel. All Other Channels at 50% Peak Current Efficiency vs Load Current 300mA Channel. All Other Channels Off Efficiency vs Load Current 200mA Channel A. All Other Channels Off Efficiency vs Load Current 200mA Channel B. All Other Channels Off Load Regulation, All Channels Efficiency vs Load Current 100mA Channel. All Other Channels Off Efficiency vs Supply Voltage, All Channels 50% Loaded TEMPERATURE ( °C) –50 0.785 0.790 0.795 0.800 0805 0.810 0.815 0 50 100 3544B G01 VIN = 2.25V VIN = 3.6V VIN = 5.5V CHANNEL 200A ILOAD = 100mA ALL CHANNELS OPERATING SUPPLY VOLTAGE (V) 2 1.5 2.0 2.5 3.0 34 3544B G02 56 fOSC –40°C fOSC 0°C fOSC 25°C fOSC 80°C ILOAD CHANNEL 100 = 50mA ALL CHANNELS OPERATING LOAD CURRENT 300mA CHANNEL (A) 30 90 100 20 10 80 50 70 60 40 0.0001 0.01 0.1 1 3544B G03 0 0.001 VIN = 3.6V VOUT = 1.8V TA = 25°C ALL OTHER CHANNELS LOADED 50% LOAD CURRENT (A) 30 90 100 20 10 80 50 70 60 40 0.0001 0.01 0.1 1 3544B G04 0 0.001 VOUT = 1.8V TA = 25°C ALL OTHER CHANNELS OFF VIN = 2.25V VIN = 3.6V VIN = 5.5V LOAD CURRENT (A) 30 90 20 10 80 50 70 60 40 0.0001 0.01 0.1 1 3544B G05 0 0.001 VOUT = 0.8V TA = 25°C ALL OTHER CHANNELS OFF VIN = 2.25V VIN = 3.6V VIN = 5.5V LOAD CURRENT (A) 30 90 100 20 10 80 50 70 60 40 0.0001 0.01 0.1 1 3544B G06 0 0.001 VOUT = 1.5V TA = 25°C ALL OTHER CHANNELS OFF VIN = 2.25V VIN = 3.6V VIN = 5.5V LOAD CURRENT (A) 30 90 100 20 10 80 50 70 60 40 0.0001 0.01 0.1 1 3544B G07 0 0.001 VOUT = 1.2V TA = 25°C ALL OTHER CHANNELS OFF VIN = 2.25V VIN = 3.6V VIN = 5.5V LOAD (mA) 0 0.6 0.8 1.2 300 3544B G09 0.4 0.2 100 200 400 0 –0.2 1.0 100mA 200mA (A) 200mA (B) 300mA VIN = 3.6V TA = 25°C CHANNELS NOT UNDER TEST HELD AT CONSTANT 50% MAXIMUM LOAD SUPPLY VOLTAGE (V) 2 70 80 3544B G08 60 50 3 4 5 100 90 VOUT100 = 1.2V VOUT200A = 0.8V VOUT200B = 1.5V VOUT300 = 1.8V TA = 25°C |
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