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LTC1735 Datasheet(PDF) 4 Page - Linear Technology |
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LTC1735 Datasheet(HTML) 4 Page - Linear Technology |
4 / 32 page 4 LTC1735 TYPICAL PERFOR A CE CHARACTERISTICS Efficiency vs Load Current (3 Operating Modes) Efficiency vs Load Current Efficiency vs Input Voltage LOAD CURRENT (A) 0.001 60 70 80 BURST SYNC CONT 10 1735 G01 50 40 20 0.01 0.1 1 30 100 90 VIN = 10V VOUT = 3.3V RS = 0.01Ω fO = 300kHz EXTVCC OPEN LOAD CURRENT (A) 0.01 0.1 1 10 1735 G02 100 90 80 70 60 50 40 VIN = 5V EXTVCC = 5V FIGURE 1 VIN = 24V VIN = 15V INPUT VOLTAGE (V) 0 70 75 80 85 90 100 5 10 15 20 1735 G03 25 30 95 EXTVCC = 5V VOUT = 1.6V FIGURE 1 IOUT = 5A IOUT = 0.5A Efficiency vs Input Voltage Load Regulation VIN – VOUT Dropout Voltage vs Load Current INPUT VOLTAGE (V) 0 70 75 80 85 90 100 5 10 15 20 1735 G04 25 30 95 EXTVCC OPEN VOUT = 1.6V FIGURE 1 IOUT = 5A IOUT = 0.5A LOAD CURRENT (A) 0 –0.2 –0.1 8 1735 G05 –0.3 –0.4 2 4 6 10 0 FCB = 0V VIN = 15V FIGURE 1 LOAD CURRENT (A) 0 0 500 400 300 200 100 2468 1735 G06 10 RSENSE = 0.005Ω VOUT = 5V – 5% DROP Input and Shutdown Currents vs Input Voltage INTVCC Line Regulation INPUT VOLTAGE (V) 05 0 200 500 10 20 25 1735 G07 100 400 300 0 40 100 20 80 60 15 30 35 EXTVCC OPEN SHUTDOWN EXTVCC = 5V INPUT VOLTAGE (V) 0 4 5 6 15 25 1735 G08 3 2 510 20 30 35 1 0 1mA LOAD EXTVCC Switch Drop vs INTVCC Load Current INTVCC LOAD CURRENT (mA) 0 300 400 500 40 1735 G09 200 100 0 10 20 30 50 |
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