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LTC1433 数据表(PDF) 2 Page - Linear Technology |
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LTC1433 数据表(HTML) 2 Page - Linear Technology |
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2 / 20 page  2 LTC1433/LTC1434 A G A U A R BSOLUTEXI TI S (Voltages Referred to PGND Pin) Input Supply Voltage (PWRVIN, SVIN) ... 13.5V to – 0.3V DC Small Switch Current (SSW) ......................... 100mA Peak Small Switch Current (SSW) ..................... 300mA Small Switch Voltage (SSW) ................................ (VIN + 0.3V) to (VIN – 13.5V) DC Large Switch Current (BSW) ....................... 600mA Peak Large Switch Current (BSW) .......................... 1.2A Large Switch Voltage (BSW) ................................ (VIN + 0.3V) to (VIN – 13.5V) PLLIN, PLL LPF, ITH, COSC ........................2.7V to – 0.3V POR, LBO .................................................. 12V to – 0.3V LBI, VOSENSE ..............................................10V to – 0.3V RUN/SS, VPROG Voltages VIN ≥ 11.7V ...........................................12V to – 0.3V VIN < 11.7V ............................... (VIN + 0.3V) to – 0.3V Commercial Temperature Range LTC1433C/LTC1434C .............................. 0 °C to 70°C Extended Commercial Operating Temperature Range (Note 2) ....................................... – 40 °C to 85°C Industrial Temperature Range (Note 3) LTC1433I/LTC1434I ........................... – 40 °C to 85°C Junction Temperature (Note 4)............................. 125 °C Storage Temperature Range ................. – 65 °C to 150°C Lead Temperature (Soldering, 10 sec).................. 300 °C (Note 1) PACKAGE/ORDER I FOR ATIO ORDER PART NUMBER ORDER PART NUMBER LTC1433CGN LTC1433IGN LTC1434CGN LTC1434IGN TJMAX = 125°C, θJA = 150°C/ W TJMAX = 125°C, θJA = 150°C/ W 1 2 3 4 5 6 7 8 TOP VIEW GN PACKAGE 16-LEAD PLASTIC SSOP 16 15 14 13 12 11 10 9 SSW NC BSW NC SGND RUN/SS LBO LBI PWRVIN PGND SVIN COSC POR ITH VOSENSE VPROG Consult factory for Military grade parts. 1 2 3 4 5 6 7 8 9 10 TOP VIEW GN PACKAGE 20-LEAD PLASTIC SSOP 20 19 18 17 16 15 14 13 12 11 NC SSW NC BSW SGND NC RUN/SS NC LBO LBI PWRVIN PGND SVIN PLLIN PLL LPF COSC POR ITH VOSENSE VPROG ELECTRICAL CHARACTERISTICS T A = 25°C, VIN = 10V, VRUN/SS = 5V, unless otherwise noted. (Notes 2, 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Main Control Loop IIN VOSENSE Feedback Current VPROG Pin Open (Note 5) 10 50 nA VOSENSE Regulated Output Voltage (Note 5) 1.19V (Adjustable) Selected VPROG Pin Open q 1.178 1.190 1.202 V 3.3V Selected VPROG = 0V q 3.220 3.300 3.380 V 5V Selected VPROG = VIN q 4.880 5.000 5.120 V VOVL Output Overvoltage Lockout VPROG Pin Open 1.24 1.28 1.32 V ∆VOSENSE Reference Voltage Line Regulation VIN = 3.6V to 13V (Note 5), VPROG Pin Open 0.002 0.01 %/V VLOADREG Output Voltage Load Regulation ITH Sinking 5µA (Note 5) q 0.5 0.8 % ITH Sourcing 5µA (Note 5) q – 0.5 – 0.8 % |
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