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LT3494A Datasheet(PDF) 4 Page - Linear Technology |
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LT3494A Datasheet(HTML) 4 Page - Linear Technology |
4 / 12 page LT3494/LT3494A 4 3494fb Output Voltage vs Temperature Minimum Switching Frequency Quiescent Current–Not Switching SHDN Current vs SHDN Voltage Peak Inductor Current (LT3494) TEMPERATURE ( °C) –40 0 1.0 120 3494 G04 –1.0 –2.0 0 40 80 –20 20 60 100 2.0 –0.5 0.5 –1.5 1.5 LT3494 FIGURE 5 CIRCUIT TEMPERATURE ( °C) –40 49.0 50.0 120 3494 G05 48.0 47.0 0 40 80 –20 20 60 100 51.0 48.5 49.5 47.5 50.5 VCC = 3.6V NO LOAD VCC (V) 3 50 55 65 70 75 100 85 5 7 8 3494 G06 60 90 95 80 4 6 9 10 SHDN PIN VOLTAGE (V) 0 0 5 10 15 20 24 6 8 3494 G07 10 12 14 16 Peak Inductor Current (LT3494A) TEMPERATURE ( °C) –40 100 150 200 250 300 040 80 120 3494 G08 350 400 –20 20 60 100 FIGURE 5 CIRCUIT VCC = 3.6V VOUT = 16V LT3494 Switching Waveforms at No Load VOUT 10mV/DIV AC COUPLED SW VOLTAGE 10V/DIV VCC = 3.6V VOUT = 16V INDUCTOR CURRENT 50mA/DIV 5 μs/DIV 3494 G10 FIGURE 5 CIRCUIT VOUT 10mV/DIV AC COUPLED SW VOLTAGE 10V/DIV INDUCTOR CURRENT 100mA/DIV 2 μs/DIV 3494 G11 FIGURE 5 CIRCUIT VCC = 3.6V VOUT = 16V VOUT 10mV/DIV AC COUPLED SW VOLTAGE 10V/DIV INDUCTOR CURRENT 100mA/DIV 500ns/DIV 3494 G12 FIGURE 5 CIRCUIT VCC = 3.6V VOUT = 16V LT3494 Switching Waveforms at 1mA Load LT3494 Switching Waveforms at 25mA Load TEMPERATURE ( °C) –40 400 450 500 550 600 040 80 120 3494 G09 650 700 –20 20 60 100 FIGURE 6 CIRCUIT VCC = 3.6V VOUT = 16V TYPICAL PERFORMANCE CHARACTERISTICS T A = 25°C unless otherwise noted. |
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