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LTC3569IUD-PBF Datasheet(PDF) 3 Page - Linear Technology |
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LTC3569IUD-PBF Datasheet(HTML) 3 Page - Linear Technology |
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3 / 24 page  LTC3569 3 3569f ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V unless otherwise noted (Notes 2, 7). SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS SVIN Input Supply Voltage l 2.5 5.5 V IVIN Input Current Pulse Skip Mode Input Current Burst Mode Operation EN1 = SVIN, EN2, EN3 = 0, IOUT1, = 0A, FB1 = 0.9V (Note 3) 230 47 365 82 μA μA IQX Additional Input Current per Buck, Pulse Skip Burst Mode Operation (Note 3) VFB = 0.9V 140 22 225 36 μA IQSHDN Quiescent Current at SGND Pin in Shutdown Mode EN1, EN2, EN3 = 0V VSW1 = VSW2 = VSW3 = 0V 0.1 1 μA IPK1 Peak Inductor Current SW1 1.8 2.0 2.5 A IPK2, IPK3 Peak Inductor Current SW2, SW3 0.780 1.0 1.3 A VFBX(MAX) Maximum Feedback Voltage l 0.784 0.8 0.816 V VFBX(STEP) Feedback Reference Step Size Each Toggle on ENx 25 mV VFBX(MIN) Minimum Feedback Voltage ENx Toggle 15 Times l 0.405 0.425 0.44 V VPROGFBX Feedback Programming Range 0.425 0.8 V IFBX Feedback Pin Input Current VFB = 0.8V l ±0.2 μA ILKSWX Switch Pin Leakage Current VSWX = 0V or SVIN, VENX = SVIN, VFBX = 0.9V ±1 μA DX Maximum Duty Cycle FBx = 0V 100 % RP1 RDSON of PSW for SW1 ISW1 = 100mA (Note 5) 195 mΩ RN1 RDSON of NSW for SW1 ISW1 = –100mA (Note 5) 180 mΩ RP2, RP3 RDSON of PSW for SW2, SW3 ISW2, ISW3 = 100mA (Note 5) 265 mΩ RN2, RN3 RDSON of NSW for SW2, SW3 ISW2, ISW3 = –100mA (Note 5) 250 mΩ RSWx_PD SWx Pull-Down in Shutdown ENx = 0V, VSWX = 1.2V, (FBx < SVIN ) 2.3 kΩ ΔVLINEREG Reference Voltage Line Regulation SVIN = 2.5V to 5.5V 0.04 0.2 %/V ΔVLOADREG Output Voltage Load Regulation Pulse Skip Mode (Note 4) 0.5 % tSS Soft Start Reference Ramp Rate 0.75 V/ms tEN Enable Turn-On Delay From Last ENx Rise to Begin of Soft Start Ramp 125 240 μs tOFF Enable Turn-Off Delay From ENx Fall to Shutdown 170 330 μs tPW Enable Pulse Width 0.06 55 μs IENX Enable Leakage Current VENX = 3.6V 0.02 μA IMODE Mode Leakage Current VMODE = 3.6V 0.02 μA VIL Input Low Voltage MODE, ENx 0.4 V VIH Input High Voltage MODE, ENx 1.2 V TMODEPW Pulse Width Applied to MODE Pin for Synchronizing 100 ns |
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Similar Description - LTC3569IUD-PBF |
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