PDF《LT8619/LT8619-5》

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2 1 SW BST INTVCC BIAS FB* VIN EN/UV RT PG SYNC

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7 8 NC VIN NC EN/UV RT PG SYNC GND

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10 9 SW SW BST NC INTVCC BIAS FB/OUT* FB/OUT* TOP VIEW

17 GND MSE PACKAGE 16-LEAD PLASTIC MSOP θJA = 40°C/W, θJC = 10°C/W EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB *FB FOR LT8619, OUT FOR LT8619-5 PIN CONFIGURATION Operating Junction Temperature (Note 3) LT8619E, LT8619E-5.40°C to 125°C LT8619I, LT8619I-5.40°C to 125°C Storage Temperature Range.65°C to 150°C LT8619/LT8619-5

3 For more information www.analog.com The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VEN/UV = 2V unless otherwise noted (Notes 2, 3) ELECTRICAL CHARACTERISTICS PARAMETER CONDITIONS MIN TYP MAX UNITS Switching Loop VIN Minimum Input Voltage 3.0 V VIN Quiescent Current at No Load VIN = 12V, VEN/UV = 0V l 0.6 0.6 1.0 3.0 ?A ?A VIN = 12V, VOUT = 3.3V, RT = 66.5k, VEN/UV = 2V, VSYNC = 0V l

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10 18 ?A ?A VIN = 12V, VOUT = 3.3V, RT = 66.5k, VEN/UV = 2V, Floats SYNC

10 ?A VIN = 12V, VOUT = 3.3V, RT = 66.5k, VEN/UV = 2V, VSYNC = INTVCC

3 mA VIN Current in Regulation VIN = 12V, VOUT = 3.3V, RT = 66.5k, VEN/UV = 2V, VSYNC = 0V ILOAD = 100?A ILOAD = 1mA l l

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65 400 ?A ?A BIAS Pin Current Consumption VIN = 12V, VBIAS = 3.3V, ILOAD = 0.5A, fOSC = 700kHz 2.2 mA Regulated Output Voltage LT8619-5, VIN = 12V, VSYNC = INTVCC, No Load l 4.975 4.925 5.0 5.0 5.025 5.075 V Feedback Voltage LT8619, VIN = 12V, VSYNC = INTVCC, No Load l 0.796 0.788 0.8 0.8 0.804 0.812 V V Feedback Voltage Line Regulation VIN = 4V to 50V, VSYNC = INTVCC l ±0.004 ±0.03 %/V Feedback Pin Input Current LT8619, VFB = 0.8V ........