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LTC3539 Datasheet(PDF) 4 Page - Linear Technology |
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LTC3539 Datasheet(HTML) 4 Page - Linear Technology |
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4 / 14 page  LTC3539/LTC3539-2 4 35392fc For more information www.linear.com/3539/3539-2 0.7 1.5 2.3 1.1 1.9 3.1 5.1 3.9 4.3 4.7 2.7 3.5 VIN (V) 2000 200 1800 1400 1000 600 1600 1200 800 400 0 3539 G05 VOUT = 1.8V VOUT = 2.5V VOUT = 3.3V VOUT = 5V L = 2.2µH VIN (V) 200 20 180 140 100 60 160 120 80 40 0 3539 G04 VOUT = 1.8V VOUT = 2.5V VOUT = 3.3V VOUT = 5V 0 2 4 1 3 5 TYPICAL PERFORMANCE CHARACTERISTICS Efficiency vs Load Current and VIN, VOUT = 5V No Load Input Current vs VIN Maximum Output Current vs VIN 0.1 1 10 100 1000 LOAD CURRENT (mA) 100 10 90 70 50 30 80 60 40 20 0 3539 G03 VIN = 2.4V VIN = 3.6V VIN = 4.2V POWER LOSS EFFICIENCY 0.1 100 1000 10 1 Minimum Load Resistance During Start-Up vs VIN Burst Mode Threshold Current vs VIN; VOUT = 1.8V 0.65 0.85 1.05 0.75 0.95 1.15 VIN (V) 3539 G06 10000 1000 100 10 0.1 VOUT = 3.3V (TA = 25°C unless otherwise noted) Normalized Current Limit vs VOUT VOUT (V) 1.10 1.05 0.95 0.85 1.00 0.90 0.80 3539 G08 1.0 1.5 2.5 2.0 3.5 5.0 4.5 3.0 4.0 0.7 0.8 0.9 1 1.1 1.2 1.3 1.5 1.4 VIN (V) 50 5 45 35 25 15 40 30 20 10 0 3539 G07a COUT = 44µF fSW = 1MHz fSW = 2MHz ENTER BURST LEAVE BURST 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 VIN (V) 50 5 45 35 25 15 40 30 20 10 0 3539 G07b COUT = 44µF fSW = 1MHz fSW = 2MHz ENTER BURST LEAVE BURST 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.7 2.3 2.5 2.1 VIN (V) 10 50 30 60 40 20 0 3539 G07c COUT = 44µF fSW = 1MHz fSW = 2MHz ENTER BURST LEAVE BURST 0.7 1.1 1.5 1.9 2.3 2.7 3.1 4.3 3.9 3.5 VIN (V) 100 10 90 70 50 30 80 60 40 20 0 3539 G07d COUT = 44µF fSW = 1MHz fSW = 2MHz ENTER BURST LEAVE BURST Burst Mode Threshold Current vs VIN; VOUT = 2.5V Burst Mode Threshold Current vs VIN; VOUT = 3.3V Burst Mode Threshold Current vs VIN; VOUT = 5V |
Similar Part No. - LTC3539_15 |
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Similar Description - LTC3539_15 |
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