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LTC3713 Datasheet(PDF) 4 Page - Linear Technology |
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LTC3713 Datasheet(HTML) 4 Page - Linear Technology |
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4 / 24 page  4 LTC3713 3713fa TYPICAL PERFOR A CE CHARACTERISTICS Transient Response (Discontinuous Mode) Transient Response Boost Converter Oscillator Frequency vs Temperature Boost Converter Current Limit vs Duty Cycle SHDN Pin Current vs VSHDN VFB2, Feedback Pin Voltage VOUT 100mV/DIV IL 5A/DIV 50 µs/DIV 3713 G01 LOAD STEP 0A TO 6A VIN = 3.3V VOUT = 1.25V FCB = 0V FIGURE 1 CIRCUIT VOUT 100mV/DIV IL 5A/DIV 50 µs/DIV 3713 G02 LOAD STEP 600mA TO 6A VIN = 3.3V VOUT = 1.25V FCB = INTVCC FIGURE 1 CIRCUIT VOUT 500mV/DIV IL 5A/DIV 500 µs/DIV 3713 G03 VIN = 3.3V VOUT = 1.25V L = 1.8 µH COUT = 540µF LOAD = 0.2 Ω Start-Up from Shutdown TEMPERATURE ( °C) –50 –25 0 25 50 75 100 3713 G04 2.00 1.75 1.50 1.25 1.00 0.75 0.50 0.25 0 VIN = 5V VIN = 1.5V SHDN PIN VOLTAGE (V) 012345 3713 G05 50 40 30 20 10 0 TA = 25°C DUTY CYCLE (%) 10 20 30 40 50 60 70 80 3713 G06 1000 900 800 700 600 500 400 300 200 70 °C 25 °C –40 °C TEMPERATURE ( °C) –50 3713 G07 1.25 1.24 1.23 1.22 1.21 1.20 VOLTAGE –25 0 25 50 75 100 Efficiency vs Load Current (Discontinuous Mode) LOAD CURRENT (A) 0.01 70 80 100 0.4 4 1 1713 G09 60 50 0.04 0.07 0.1 0.7 7 10 40 30 90 VIN = 2.5V VIN = 3.3V FIGURE 1 CIRCUIT (B) LOAD CURRENT (A) 0.01 0 10 30 40 50 100 70 0.09 0.8 3 3713 G10 20 80 90 60 0.05 0.4 7 VIN = 3.3V VIN = 2.5V FIGURE 1 CIRCUIT (B) Efficiency vs Load Current (Force Continuous) |
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