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LT3493EDCB-TR Datasheet(PDF) 2 Page - Linear Technology |
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LT3493EDCB-TR Datasheet(HTML) 2 Page - Linear Technology |
2 / 20 page LT3493 2 3493fb PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS (Note 1) TOP VIEW SHDN VIN SW FB GND BOOST DCB PACKAGE 6-LEAD (2mm 3mm) PLASTIC DFN 4 5 7 6 3 2 1 TJMAX = 125°C, θJA = 64°C/W EXPOSED PAD (PIN 7) IS GND, MUST BE SOLDERED TO PCB ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 12V, VBOOST = 17V, unless otherwise noted. (Note 2) ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LT3493EDCB#PBF LT3493EDCB#TRPBF LCGG 6-Lead (2mm × 3mm) Plastic DFN –40°C to 85°C LT3493IDCB#PBF LT3493IDCB#TRPBF LCGH 6-Lead (2mm × 3mm) Plastic DFN –40°C to 125°C LEAD BASED FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LT3493EDCB LT3493EDCB#TR LCGG 6-Lead (2mm × 3mm) Plastic DFN –40°C to 85°C LT3493IDCB LT3493IDCB#TR LCGH 6-Lead (2mm × 3mm) Plastic DFN –40°C to 125°C Consult LTC Marketing for parts specified with wider operating temperature ranges. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/ Input Voltage (VIN)....................................................40V BOOST Pin Voltage ..................................................50V BOOST Pin Above SW Pin.........................................25V SHDN Pin..................................................................40V FB Voltage...................................................................6V Operating Temperature Range (Note 2) LT3493E .............................................. –40°C to 85°C LT3493I ............................................. –40°C to 125°C Maximum Junction Temperature .......................... 125°C Storage Temperature Range................... –65°C to 150°C PARAMETER CONDITIONS MIN TYP MAX UNITS VIN Operating Range 3.6 36 V Undervoltage Lockout 3.1 3.4 3.6 V Feedback Voltage l 765 780 795 mV FB Pin Bias Current VFB = Measured VREF + 10mV (Note 4) l 50 150 nA Quiescent Current Not Switching 1.9 2.5 mA Quiescent Current in Shutdown VSHDN = 0V 0.01 2 μA Reference Line Regulation VIN = 5V to 36V 0.007 %/V Switching Frequency VFB = 0.7V VFB = 0V 685 750 36 815 kHz kHz Maximum Duty Cycle TA = 25°C l 88 91 95 95 % % |
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