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LT3468ES5 Datasheet(PDF) 2 Page - Linear Technology |
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LT3468ES5 Datasheet(HTML) 2 Page - Linear Technology |
2 / 12 page LT3468/LT3468-1 2 34681i VIN Voltage .............................................................. 16V SW Voltage ................................................ –0.4V to 50V CHARGE Voltage ...................................................... 10V DONE Voltage .......................................................... 10V Current into DONE Pin .......................................... ±1mA Maximum Junction Temperature .......................... 125 °C Operating Temperature Range (Note 2) ...–40 °C to 85°C Storage Temperature Range ..................–65 °C to 150°C Lead Temperature (Soldering, 10 sec).................. 300 °C ORDER PART NUMBER S5 PART MARKING TJMAX = 125°C, θJA = 256°C/W LTAEC LTAGQ LT3468ES5 LT3468ES5-1 ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1) ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 3V, VCHARGE = VIN unless otherwise noted. (Note 2) Specifications are for both the LT3468 and LT3468-1 unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS Quiescent Current Not Switching 5 8 mA VCHARGE = 0V 0 1 µA Input Voltage Range q 2.5 16 V Switch Current Limit LT3468 (Note 3) 1.1 1.2 1.3 A LT3468-1 0.45 0.55 0.65 A Switch VCESAT LT3468, ISW = 1A 330 430 mV LT3468-1, ISW = 400mA 150 200 mV VOUT Comparator Trip Voltage Measured as VSW – VIN q 31 31.5 32 V VOUT Comparator Overdrive 300ns Pulse Width 200 400 mV DCM Comparator Trip Voltage Measured as VSW – VIN q 10 36 80 mV CHARGE Pin Current VCHARGE = 3V 15 40 µA VCHARGE = 0V 0 0.1 µA Switch Leakage Current VIN = VSW = 5V, in Shutdown q 0.01 1 µA CHARGE Input Voltage High q 1V CHARGE Input Voltage Low q 0.3 V DONE Output Signal High 100k Ω from VIN to DONE 3 V DONE Output Signal Low 33 µA into DONE Pin 100 200 mV DONE Leakage Current VDONE = 3V, DONE NPN Off 20 100 nA Consult LTC Marketing for parts specified with wider operating temperature ranges. Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: The LT3468E/LT3468E-1 are guaranteed to meet performance specifications from 0 °C to 70°C. Specifications over the –40°C to 85°C operating temperature range are assured by design, characterization and correlation with statistical process. Note 3: Specifications are for static test. Current limit in actual application will be slightly higher. 5 VIN 4 CHARGE SW 1 TOP VIEW S5 PACKAGE 5-LEAD PLASTIC SOT-23 GND 2 DONE 3 |
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