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LT3689EUD-5-TRPBF Datasheet(PDF) 5 Page - Linear Technology |
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LT3689EUD-5-TRPBF Datasheet(HTML) 5 Page - Linear Technology |
5 / 32 page LT3689/LT3689-5 5 3689fa TYPICAL PERFORMANCE CHARACTERISTICS No-Load Supply Current vs VIN No-Load Supply Current Maximum Load Current, 5VOUT Maximum Output Current, 3.3VOUT Switch Current Limit vs Duty Cycle Switch Current Limit vs Temperature Switch Voltage Drop Maximum VIN for Full Frequency Maximum VIN for Full Frequency INPUT VOLTAGE (V) 0 80 100 120 35 60 40 10 20 5 15 25 30 40 20 0 140 3689 G04 TA = 25°C TEMPERATURE (°C) –50 0 200 400 600 –25 0 25 50 100 75 125 800 100 300 500 700 150 3689 G05 CATCH DIODE: DIODES INC. B140HB VIN = 12V VOUT = 3.3V INCREASED SUPPLY CURRENT DUE TO CATCH DIODE LEAKAGE AT HIGH TEMPERATURE 0 0.4 0.8 1.2 0.2 0.6 1.0 1.4 VIN (V) 6 12 18 30 24 36 3689 G06 MINIMUM TYPICAL TA = 25°C L = 12μH f = 1MHz 0 0.4 0.2 0.6 0.3 0.1 0.5 0.7 LOAD CURRENT (A) 0 10 20 30 40 5 15 25 35 3689 G07 VO = 5V L = 6.8μH f = 2MHz SYNC = 5V TA = 25°C TA = 85°C 0 0.4 0.2 0.6 0.3 0.1 0.5 0.7 LOAD CURRENT (A) 0 10 20 30 5 15 25 35 3689 G08 VO = 3.3V L = 4.7μH f = 2MHz SYNC = 3.3V TA = 25°C TA = 85°C VIN (V) 4 0 0.4 0.8 1.2 8 12 16 20 28 24 32 0.2 0.6 1.0 36 3689 G09 TA = 25°C L = 12μH f = 700kHz MINIMUM TYPICAL DUTY CYCLE (%) 0 0 0.4 0.8 1.2 1.6 2.0 20 40 60 80 100 3689 G10 TA = 25°C SYNC = LOW MINIMUM TYPICAL TEMPERATURE (°C) 0 0.5 1.0 1.5 2.0 3689 G11 SYNC = HIGH SYNC = LOW –50 –25 0 25 50 100 75 125 150 SWITCH CURRENT (mA) 0 400 500 300 200 400 800 200 600 1000 100 0 600 3689 G12 TA = 125°C TA = 25°C TA = –50°C |
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