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LTCVS Datasheet(PDF) 3 Page - Linear Technology |
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LTCVS Datasheet(HTML) 3 Page - Linear Technology |
3 / 24 page LT3684 3 3684f PARAMETER CONDITIONS MIN TYP MAX UNITS Minimum Bias Voltage 2.7 3 V Feedback Voltage ● 1.25 1.24 1.265 1.265 1.28 1.29 V V FB Pin Bias Current (Note 3) ● 30 100 nA FB Voltage Line Regulation 4V < VIN < 34V 0.002 0.02 %/V Error Amp gm 330 µMho Error Amp Gain 1000 VC Source Current 75 µA VC Sink Current 100 µA VC Pin to Switch Current Gain 3.5 A/V VC Clamp Voltage 2V Switching Frequency RT = 8.66k RT = 29.4k RT = 187k 2.7 1.25 250 3.0 1.4 300 3.3 1.55 350 MHz MHz kHz Minimum Switch Off-Time ● 100 150 nS Switch Current Limit Duty Cycle = 5% 3.1 3.6 4.0 A Switch VCESAT ISW = 2A 360 mV Boost Schottky Reverse Leakage VSW = 10V, VBIAS = 0V 0.02 2 µA Minimum Boost Voltage (Note 4) ● 1.6 2.1 V BOOST Pin Current ISW = 1A 18 30 mA RUN/SS Pin Current VRUN/SS = 2.5V 5 10 µA RUN/SS Input Voltage High 2.5 V RUN/SS Input Voltage Low 0.2 V PG Threshold Offset from Feedback Voltage VFB Rising 100 mV PG Hysteresis 10 mV PG Leakage VPG = 5V 0.1 1 µA PG Sink Current VPG = 0.4V ● 100 300 µA 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 LT3684E is guaranteed to meet performance specifications from 0°C to 85°C. Specifications over the –40°C to 85°C operating temperature range are assured by design, characterization and correlation with statistical process controls. The LT3684I specifications are guaranteed over the –40°C to 125°C temperature range. Note 3: Bias current measured in regulation. Bias current flows into the FB pin. Note 4: This is the minimum voltage across the boost capacitor needed to guarantee full saturation of the switch. The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 10V, VRUNS/SS = 10V VBOOST = 15V, VBIAS = 3.3V unless otherwise noted. (Note 2) ELECTRICAL CHARACTERISTICS |
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