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LTC3803-5 Datasheet(PDF) 3 Page - Linear Technology |
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LTC3803-5 Datasheet(HTML) 3 Page - Linear Technology |
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3 / 16 page  LTC3803-5 3 38035fd ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating junction temperature range, otherwise specifications are at TA = 25°C. VCC = 5V, unless otherwise noted. (Notes 2, 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VCLAMP25mA VCC Shunt Regulator Voltage at 25mA ICC = 25mA, VITH/RUN = 0V LTC3803E-5 LTC3803I-5, LTC3803H-5 LTC3803MP-5 l l l 6.3 6.3 6 8.1 8.1 8.1 10.3 10.7 10.7 V V V ICC Input DC Supply Current in Normal Operation (Note 4) VITH/RUN = 1.3V 240 350 μA ICC,(UV) Input DC Supply Current in Undervoltage VCC = VTURNON – 100mV LTC3803E-5 LTC3803I-5, LTC3803H-5, LTC3803MP-5 l l 40 40 90 100 μA μA VITHSHDN Shutdown Threshold (at ITH/RUN) VCC > VTURNON, VITH/RUN Falling LTC3803E-5 LTC3803I-5, LTC3803H-5 LTC3803MP-5 l l l 0.12 0.08 0.08 0.28 0.28 0.28 0.45 0.45 0.47 V V V IITHSTART Start-Up Current Source VITH/RUN = 0V LTC3803E-5 LTC3803I-5, LTC3803H-5, LTC3803MP-5 l l 0.07 0.07 0.34 0.34 0.8 1 μA μA VFB Regulated Feedback Voltage (Note 5) LTC3803E-5: 0°C ≤ TJ ≤ 85°C –40°C ≤ TJ ≤ 85°C LTC3803I-5: 0°C ≤ TJ ≤ 85°C –40°C ≤ TJ ≤ 125°C LTC3803H-5: 0°C ≤ TJ ≤ 85°C –40°C ≤ TJ ≤ 150°C LTC3803MP-5: 0°C ≤ TJ ≤ 85°C –55°C ≤ TJ ≤ 150°C l l l l 0.788 0.780 0.788 0.780 0.788 0.780 0.788 0.780 0.800 0.800 0.800 0.800 0.800 0.800 0.800 0.800 0.812 0.816 0.812 0.820 0.812 0.820 0.812 0.820 V V V V V V V V gm Error Amplifier Transconductance ITH/RUN Pin Load = ±5μA (Note 5) 200 333 500 μA/V ΔVO(LINE) Output Voltage Line Regulation (Note 5) 0.1 mV/V ΔVO(LOAD) Output Voltage Load Regulation ITH/RUN Sinking 5μA (Note 5) ITH/RUN Sourcing 5μA (Note 5) 3 3 mV/μA mV/μA IFB VFB Input Current (Note 5) 10 50 nA fOSC Oscillator Frequency VITH/RUN = 1.3V 170 200 230 kHz DCON(MIN) Minimum Switch On Duty Cycle VITH/RUN = 1.3V, VFB = 0.8V 6.5 8.5 % DCON(MAX) Maximum Switch On Duty Cycle VITH/RUN = 1.3V, VFB = 0.8V 70 80 90 % tRISE Gate Drive Rise Time CLOAD = 3000pF 40 ns tFALL Gate Drive Fall Time CLOAD = 3000pF (Note 7) 40 ns VIMAX Peak Current Sense Voltage RSL = 0 (Note 6) LTC3803E-5 LTC3803I-5, LTC3803H-5 LTC3803MP-5 l l l 90 85 85 100 100 100 115 115 120 mV mV mV ISLMAX Peak Slope Compensation Output Current (Note 7) 5 μA tSFST Soft-Start Time 0.7 ms |
Similar Part No. - LTC3803-5 |
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Similar Description - LTC3803-5 |
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