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LTC3633EFETRPBF Datasheet(PDF) 3 Page - Linear Technology |
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LTC3633EFETRPBF Datasheet(HTML) 3 Page - Linear Technology |
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3 / 28 page  LTC3633 3 3633f ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIN Supply Range l 3.6 15 V IQ Input DC Supply Current (VIN1 + VIN2) Both Channels Active (Note 5) Sleep Current Shutdown MODE = 0V MODE = INTVCC, VFB1, VFB2 > 0.6 RUN = 0V 1.3 500 13 mA μA μA VFB Feedback Reference Voltage l 0.594 0.6 0.606 V ΔVLINE_REG Reference Voltage Line Regulation VIN = 3.6V to 15V 0.02 %/V ΔVLOAD_REG Output Voltage Load Regulation ITH = 0.8V to 1.6V 0.05 % IFB Feedback Pin Input Current ±30 nA gm(EA) Error Amplifier Transconductance ITH = 1.2V 1.8 mS tON Minimum On Time VON = 1V, VIN = 4V 20 ns tOFF Minimum Off Time VIN = 6V 40 60 ns fOSC Oscillator Frequency VRT = INTVCC RT = 160k RT = 80k 1.4 1.7 3.4 2 2 4 2.6 2.3 4.6 MHz MHz MHz ILIM Valley Switch Current Limit Channel 1 (3A) Channel 2 (3A) 2.6 2.6 3.5 3.5 4.5 4.5 A A RDS(ON) Channel 1 Top Switch On-Resistance Bottom Switch On-Resistance Channel 2 Top Switch On-Resistance Bottom Switch On-Resistance 130 65 130 65 mΩ mΩ mΩ mΩ ISW(LKG) Switch Leakage Current VIN = 15V, VRUN = 0V 0.01 ±1 μA VVIN-OV VIN Overvoltage Lockout Threshold VIN Rising VIN Falling 16.8 15.8 17.5 16.5 18 17 V V INTVCC Voltage 3.6V < VIN < 15V, 0mA Load 3.1 3.3 3.5 V INTVCC Load Regulation 0mA to 50mA Load, VIN = 4V to 15V 0.7 % RUN Threshold Rising RUN Threshold Falling l l 1.18 0.98 1.22 1.01 1.26 1.04 V V RUN Leakage Current VIN = 15V 0 ±3 μA V2P5 Voltage ILOAD = 0mA to 10mA l 2.46 2.5 2.54 V PGOOD Good-to-Bad Threshold VFB Rising VFB Falling 8 –8 10 –10 % % PGOOD Bad-to-Good Threshold VFB Falling VFB Rising –3 3 –5 5 % % RPGOOD PGOOD Pull-Down Resistance 10mA Load 15 Ω tPGOOD Power Good Filter Time 20 40 μs tSS Internal Soft-Start Time 400 700 μs VFB During Tracking TRACKSS = 0.3V 0.28 0.3 0.315 V ITRACKSS TRACKSS Pull-Up Current 1.4 μA VPHMODE PHMODE Threshold Voltage PHMODE VIH PHMODE VIL 1 0.3 V V The l denotes the specifications which apply over the full operating junction temperature range, otherwise specifications are at TJ = 25°C. VIN = 12V, INTVCC = 3.3V, unless otherwise noted. |
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