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LT1936IMS8E-PBF Datasheet(PDF) 3 Page - Linear Technology |
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LT1936IMS8E-PBF Datasheet(HTML) 3 Page - Linear Technology |
3 / 20 page LT1936 3 1936fd LOAD CURRENT (A) 0 60 70 80 90 100 0.5 1.0 1936 G02 1.5 VOUT = 3.3V TA = 25°C D1 = DFLS140L L1 = 10μH, TOKO D63CB VIN = 5V VIN = 12V VIN = 24V LOAD CURRENT (A) 0 60 70 80 90 100 0.5 1.0 1936 G01 1.5 VOUT = 5V TA = 25°C D1 = DFLS140L L1 = 15μH, TOKO D63CB VIN = 12V VIN = 24V DUTY CYCLE (%) 0 0 0.5 1.0 1.5 2.0 2.5 3.0 20 40 TYP MIN 60 80 1936 G03 100 ELECTRICAL CHARACTERISTICS Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The LT1936E is 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 The ● 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) VC Clamp 1.8 V VC Switch Threshold 0.7 V Internal Compensation R 50 kΩ Internal Compensation C VCOMP = 1V 150 pF COMP Pin Leakage VCOMP = 1.8V, E and I Grades H Grade ● ● 1 2 μA μA Switching Frequency VFB = 1.1V VFB = 0V 400 500 40 600 kHz kHz Maximum Duty Cycle ● 87 92 % Switch Current Limit (Note 3) 1.9 2.2 2.6 A Switch VCESAT ISW = 1.2A 410 520 mV Switch Leakage Current 2μA Minimum BOOST Voltage Above SW ISW = 1.2A 2 2.2 V BOOST Pin Current ISW = 1.2A 28 50 mA BOOST Pin Leakage VSW = 0V 0.1 1 μA SHDN Input Voltage High 2.3 V SHDN Input Voltage Low 0.3 V SHDN Pin Current VSHDN = 2.3V (Note 5) VSHDN = 12V (Note 5) VSHDN = 0V 34 140 0.01 50 240 0.1 μA μA μA with statistical process controls. The LT1936I specifications are guaranteed over the –40°C to 125°C temperature range. The LT1936H specifications are guaranteed over the –40°C to 150°C temperature range. Note 3: Current limit guaranteed by design and/or correlation to static test. Slope compensation reduces current limit at higher duty cycle. Note 4: Current flows out of pin. Note 5: Current flows into pin. TYPICAL PERFORMANCE CHARACTERISTICS Efficiency, VOUT = 5V Efficiency, VOUT = 3.3V Switch Current Limit |
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