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LT3748IMSTRPBF Datasheet(PDF) 2 Page - Linear Technology |
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LT3748IMSTRPBF Datasheet(HTML) 2 Page - Linear Technology |
2 / 28 page LT3748 3748f absolute MaxiMuM ratings VIN, RFB...................................................................100V VIN to RFB..................................................................±5V EN/UVLO......................................................–0.3V, 100V INTVCC....................................................VIN + 0.3V, 20V SS, VC, TC, RREF .........................................................6V SENSE......................................................................0.4V Maximum Junction Temperature .......................... 125°C Operating Junction Temperature Range (Note 2)..................................................–40°C to 125°C Storage Temperature Range ..................–65°C to 150°C orDer inForMation electrical characteristics The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 10V, unless otherwise noted. LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT3748EMS#PBF LT3748EMS#TRPBF 3748 16-Lead Plastic MSOP –40°C to 125°C LT3748IMS#PBF LT3748IMS#TRPBF 3748 16-Lead Plastic MSOP –40°C to 125°C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. 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/ PARAMETER CONDITIONS MIN TYP MAX UNITS Input Voltage Range l 5 100 V Quiescent Current Not Switching VEN/UVLO = 0.2V 1.3 0 1.75 1 mA µA VIN Quiescent Current, INTVCC Overdriven VINTVCC = 10V 300 450 µA INTVCC Voltage Range l 4.5 20 V INTVCC Pin Regulation Voltage 6.8 7 7.2 V INTVCC Dropout (VIN – VINTVCC), IINTVCC = 10mA, VIN = 5V 0.7 V INTVCC Undervoltage Lockout Falling Threshold l 3.45 3.6 3.75 V EN/UVLO Pin Threshold EN/UVLO Pin Voltage Rising l 1.19 1.223 1.25 V EN/UVLO Pin Hysteresis Current EN/UVLO = 1V 1.9 2.4 2.9 µA Soft-Start Current VSS = 0.4V (Note 3) 5 µA Soft-Start Threshold 0.65 V Soft-Start Reset Current 3 mA Maximum SENSE Current Limit Threshold VC = 2.2V l 95 90 100 100 105 110 mV mV Minimum SENSE Current Limit Threshold VC = 0V 15 mV Maximum to Minimum SENSE Threshold Ratio l 5.2 6.6 8.2 mV/mV (Note 1) pin conFiguration 1 3 5 6 7 8 VIN EN/UVLO INTVCC GATE SENSE GND 16 14 12 11 10 9 RFB RREF TC VC SS GND TOP VIEW MS PACKAGE 16 (12)-LEAD PLASTIC MSOP TJMAX = 125°C, θJA = 90°C/W |
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