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LTC3601EMSE Datasheet(PDF) 4 Page - Linear Technology |
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LTC3601EMSE Datasheet(HTML) 4 Page - Linear Technology |
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4 / 24 page  LTC3601 4 3601f TYPICAL PERFORMANCE CHARACTERISTICS Efficiency vs Load Current Burst Mode Operation Efficiency vs Load Current Forced Continuous Mode Efficiency vs Frequency Forced Continuous Mode Reference Voltage vs Temperature ELECTRICAL CHARACTERISTICS Note 3: TJ is calculated from the ambient temperature, TA, and power dissipation, PD, according to the following formula: TJ = TA + (PD • θJA) where θJA = 45°C/W for the QFN package and θJA = 38°C/W for the MSOP package. Efficiency vs Input Voltage Burst Mode Operation Note 4: Maximum allowed current draw when used as a regulated output is 5mA. This supply is only intended to provide additional DC load current as needed and not intended to regulate large transient or ac behavior as these waveforms may impact LTC3601 operation. Efficiency vs Load Current TA = 25°C, VIN = 12V, fO = 1MHz, L = 2.2μH unless otherwise noted. LOAD CURRENT (A) 30 90 100 20 10 80 50 70 60 40 0.001 0.1 1 10 3601 G01 0 0.01 VIN = 4V VIN = 8V VIN = 12V VOUT = 1.8V LOAD CURRENT (A) 30 90 100 20 10 80 50 70 60 40 0.001 0.1 1 10 3601 G02 0 0.01 VIN = 4V VIN = 8V VIN = 12V VOUT = 1.8V LOAD CURRENT (A) 30 90 100 20 10 80 50 70 60 40 0.001 0.1 1 10 3601 G03 0 0.01 VOUT = 3.3V VOUT = 5V BURST FORCED CONTINUOUS INPUT VOLTAGE (V) 4 75 80 85 10 14 3601 G04 70 65 60 68 12 90 95 100 16 ILOAD = 500mA ILOAD = 100mA VOUT = 1.8V FIGURE 7 CIRCUIT ILOAD = 1.5A ILOAD = 10mA FREQUENCY (MHz) 0.5 80 82 84 86 88 90 92 1.0 1.5 2.0 2.5 3601 G05 3.0 L = 2.2μH VOUT =1.8V ILOAD = 500mA L = 1μH TEMPERATURE (°C) –50 –25 0.595 0.599 0.605 0 50 75 3601 G06 0.597 0.603 0.601 25 100 125 |
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