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LT1934ES6 Datasheet(PDF) 2 Page - Linear Technology |
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LT1934ES6 Datasheet(HTML) 2 Page - Linear Technology |
2 / 20 page 2 LT1934/LT1934-1 1934f (Note 1) Input Voltage (VIN) ................................................. 34V BOOST Pin Voltage ................................................. 40V BOOST Pin Above SW Pin ...................................... 20V SHDN Pin ............................................................... 34V FB Voltage ................................................................ 6V SW Voltage ............................................................... VIN Operating Temperature Range (Note 2) .......................... LT1934E/LT1934E-1 ......................... – 40 °C to 85°C LT1934I/LT1934I-1 ......................... – 40 °C to 125°C Maximum Junction Temperature .......................... 125 °C Storage Temperature Range ................. – 65 °C to 150°C Lead Temperature (Soldering, 10 sec).................. 300 °C TJMAX = 125°C, θJA = 250°C/ W, θJC = 102°C/ W ORDER PART NUMBER S6 PART MARKING LT1934ES6 LT1934ES6-1 LT1934IS6 LT1934IS6-1 LTXP LTF8 LTAJB LTAJC ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO BOOST 1 GND 2 FB 3 6 SW 5 VIN 4 SHDN TOP VIEW S6 PACKAGE 6-LEAD PLASTIC SOT-23 Consult LTC Marketing for parts specified with wider operating temperature ranges. PARAMETER CONDITIONS MIN TYP MAX UNITS Undervoltage Lockout 3 3.2 V –40 °C ≤ TA ≤ 85°C q 3 3.6 V –40 °C ≤ TA ≤ 125°C q 3 3.6 V Quiescent Current VFB = 1.3V 12 22 µA –40 °C ≤ TA ≤ 85°C q 12 26 µA –40 °C ≤ TA ≤ 125°C q 12 26 µA VSHDN = 0V 0.01 2 µA FB Comparator Trip Voltage VFB Falling –40 °C ≤ TA ≤ 85°C q 1.22 1.25 1.27 V –40 °C ≤ TA ≤ 125°C q 1.21 1.25 1.27 V FB Comparator Hysteresis 10 mV FB Pin Bias Current VFB = 1.25V –40 °C ≤ TA ≤ 85°C q 2 ±15 nA –40 °C ≤ TA ≤ 125°C q 2 ±60 nA FB Voltage Line Regulation 4V < VIN < 34V 0.007 %/V Switch Off Time VFB > 1V 1.4 1.8 2.3 µs VFB = 0V 12 µs Maximum Duty Cycle VFB = 1V –40 °C ≤ TA ≤ 85°C q 85 88 % –40 °C ≤ TA ≤ 125°C q 83 88 % Switch VCESAT ISW = 300mA (LT1934) 200 300 mV ISW = 75mA (LT1934-1) 65 120 mV Switch Current Limit LT1934 350 400 490 mA LT1934-1 90 120 160 mA BOOST Pin Current ISW = 300mA (LT1934) 8.5 12 mA ISW = 75mA (LT1934-1) 6.0 10 mA Minimum Boost Voltage (Note 3) ISW = 300mA (LT1934) 1.8 2.5 V ISW = 75mA (LT1934-1) 1.7 2.5 V Switch Leakage Current 2 µA The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 10V, VBOOST = 15V, unless otherwise noted. ELECTRICAL CHARACTERISTICS |
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