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LT1612 Datasheet(PDF) 3 Page - Linear Technology |
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LT1612 Datasheet(HTML) 3 Page - Linear Technology |
3 / 12 page 3 LT1612 sn1612 1612fs SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS SHDN Pin Current SHDN = 2V q 10 15 µA SHDN = 5V q 30 45 µA BOOST Pin Current BOOST = VIN + 2V 4 mA Switch Current Limit (Note 4) Duty Cycle = 0% MODE = OV 600 710 900 mA MODE = 5V 550 650 900 mA Burst Mode Operation Current Limit MODE = 0V 180 mA Switch Voltage Drop ISW = 500mA 200 280 mV Rectifier Voltage Drop IRECT = 500mA 300 400 mV SW Pin Leakage VSW = 5V, VSHDN = 0V q 1 µA Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: The LT1612E is guaranteed to meet performance specifications from 0 °C to 70°C. Specifications over the –40°C to 85°C operating ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C, VIN = VSHDN = 3V temperature range are assured by design, characterization and correlation with statistical process controls. Note 3: Bias current flows out of the FB pin. Note 4: Duty cycle affects current limit due to slope compensation. TYPICAL PERFOR A CE CHARACTERISTICS FB Voltage vs Temperature Quiescent Current vs Temperature FB Pin Bias Current TEMPERATURE ( °C) – 50 –25 25 75 50 190 180 170 160 150 140 130 120 110 100 1612 • G02 0 100 MODE = 0V TEMPERATURE ( °C) –50 –25 0 50 75 1612 • G03 100 0 –2 –4 –6 –8 –10 –12 –14 –16 –18 –20 25 TEMPERATURE ( °C) –50 0.64 0.63 0.62 0.61 0.60 0.59 –25 025 50 1612 • G01 75 100 |
Similar Part No. - LT1612_15 |
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Similar Description - LT1612_15 |
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