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LTC3604IUDPBF Datasheet(PDF) 3 Page - Linear Technology |
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LTC3604IUDPBF Datasheet(HTML) 3 Page - Linear Technology |
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3 / 24 page  LTC3604 3 3604f ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VVIN Input Supply Range l 3.6 15 V IQ Input DC Supply Current Forced Continuous Operation Sleep Current Shutdown MODE = 0V MODE = INTVCC, VFB > 0.6V RUN = 0V 700 300 14 1000 500 25 μA μA μA VFB Feedback Reference Voltage l 0.594 0.600 0.606 V ΔVLINEREG Reference Voltage Line Regulation VVIN = 3.6V to 15V 0.01 %/V ΔVLOADREG Output Voltage Load Regulation ITH = 0.6V to 1.6V 0.1 % IFB Feedback Pin Input Current VFB = 0.6V ±30 nA gm(EA) Error Amplifier Transconductance ITH = 1.2V 2.0 mS tON(MIN) Minimum On-Time VON = 1V, VIN = 4V 20 ns tOFF(MIN) Minimum Off-Time VIN = 6V 40 60 ns ILIM Valley Switch Current Limit 2.6 3.4 4.3 A fOSC Oscillator Frequency VRT = INTVCC RRT = 160k RRT = 80k 1.4 1.7 3.4 2 2 4 2.6 2.3 4.6 MHz MHz MHz RDS(ON) Top Switch On-Resistance 130 mΩ Bottom Switch On-Resistance 100 mΩ VVIN(OV) VIN Overvoltage Lockout Threshold VIN Rising VIN Falling l l 16.8 15.8 17.5 16.5 18 17 V V VINTVCC INTVCC Voltage 3.6V < VIN < 15V 3.13 3.3 3.45 V ΔINTVCC INTVCC Load Regulation (Note 4) IINTVCC = 0mA to 20mA 0.6 % VUVLO INTVCC Undervoltage Lockout Threshold INTVCC Rising, VIN = INTVCC INTVCC Falling, VIN = INTVCC 2.75 2.45 2.9 V V VRUN RUN Threshold RUN Rising RUN Falling l l 1.21 0.97 1.25 1.0 1.29 1.03 V V IRUN(LKG) RUN Leakage Current VVIN = 15V 0 ±3 μA VFB_GB PGOOD Good-to-Bad Threshold FB Rising FB Falling 8 –8 10 –10 % % VFB_BG PGOOD Bad-to-Good Threshold FB Rising FB Falling –3 3 –5 5 % % tPGOOD Power Good Filter Time 20 40 μs RPGOOD PGOOD Pull-Down Resistance 10mA Load 15 Ω ISW(LKG) Switch Leakage Current VRUN = 0V 0.01 1 μA tSS Internal Soft-Start Time VFB from 10% to 90% Full Scale 400 700 μs VFB_TRACK TRACK Pin TRACK = 0.3V 0.28 0.3 0.315 mV ITRACK TRACK Pull-Up Current 1.4 μA VMODE/SYNC MODE Threshold Voltage MODE VIH MODE VIL l l 1.0 0.4 V V SYNC Threshold Voltage SYNC VIH l 0.95 V IMODE MODE Input Current MODE = 0V MODE = INTVCC –1.5 1.5 μA μA The l denotes the specifications which apply over the full operating junction temperature range, otherwise specifications are at TJ = 25°C. VVIN = 12V, unless otherwise specified. 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 LTC3604E is guaranteed to meet performance specifications from 0°C to 85°C. Specifications over the –40°C to 125°C operating junction temperature range are assured by design, characterization, and correlation with statistical process controls. The LTC3604I is guaranteed over the full –40°C to 125°C operating junction temperature range. The maximum ambient temperature is determined by specific operating conditions in conjunction with board layout, the rated package thermal resistance and other environmental factors. |
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