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LT3684IDD Datasheet(PDF) 4 Page - Linear Technology |
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LT3684IDD Datasheet(HTML) 4 Page - Linear Technology |
4 / 24 page LT3684 4 3684f Efficiency (VOUT = 5.0V) Efficiency (VOUT = 3.3V) Maximum Load Current Switch Voltage Drop Boost Pin Current Switch Current Limit Maximum Load Current Switch Current Limit Efficiency LOAD CURRENT (A) 0 80 90 100 1.6 3684 G01 70 60 50 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.8 2.0 VIN = 12V VIN = 24V L: NEC PLC-0745-4R7 f = 800kHz LOAD CURRENT (A) 0 70 75 80 85 90 1.6 3684 G02 65 60 55 50 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.8 2.0 VIN = 12V VIN = 7V VIN = 24V L: NEC PLC-0745-4R7 f = 800kHz SWITCHING FREQUENCY (MHz) 0 85 1.5 3684 G03 70 60 0.5 1 2 55 50 90 80 75 65 2.5 3 VIN = 12V VIN = 24V VOUT = 3.3V L = 10 µH LOAD = 1A INPUT VOLTAGE (V) 5 15 3684 G04 2.5 10 20 1.5 1.0 4.0 3.5 3.0 2.0 25 30 TYPICAL MINIMUM VOUT = 3.3V TA = 25°C L = 4.7 µH f = 800kHz INPUT VOLTAGE (V) 5 15 3684 G05 2.5 10 20 1.5 1.0 4.0 3.5 3.0 2.0 25 30 TYPICAL MINIMUM VOUT = 5V TA = 25°C L = 4.7 µH f = 800kHz DUTY CYCLE (%) 0 40 3684 G06 2.5 20 60 1.5 1.0 4.0 3.5 3.0 2.0 80 100 TEMPERATURE ( °C) –50 2.0 2.5 3.0 125 3684 G07 1.5 1.0 0 0 –25 50 25 100 75 0.5 4.5 4.0 DUTY CYCLE = 10 % DUTY CYCLE = 90 % SWITCH CURRENT (mA) 0 400 500 700 1500 2500 3684 G08 300 200 500 1000 2000 3000 3500 100 0 600 SWITCH CURRENT (mA) 0 0 10 30 40 50 2000 90 3684 G09 20 1000 500 2500 3000 1500 3500 60 70 80 (TA = 25°C unless otherwise noted) TYPICAL PERFORMANCE CHARACTERISTICS |
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