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LX7165-XYCSP Datasheet(PDF) 7 Page - Microsemi Corporation |
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LX7165-XYCSP Datasheet(HTML) 7 Page - Microsemi Corporation |
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7 / 24 page ![]() Copyright © 2016 Microsemi Page 7 Rev. 1.2, 09/192016 Analog Mixed Signal Group One Enterprise Aliso Viejo, CA 92656 USA, 1-800-713-4113, 949-380-6100, fax 949-215-4996 LX7165 3V to 5.5V, 5A Constant Frequency Hysteretic Synchronous Buck Regulator with I 2C Production Datasheet Electrical Characteristics The following specifications apply over the operating ambient temperature of 0°C ≤ TA ≤ 85°C except where otherwise noted with the following test conditions: VIN = 5V, EN = 5V, SCL = 5V, SDA = 5V, default register settings. Typical values stated, are either by design or by production testing at 25°C ambient. Symbol Parameter Conditions Min Typ Max Units Input Voltage IQ Input current ILOAD = 0, PSM enabled 200 440 600 µA IIN Input current at shut down EN = GND, TA = 25°C 0.1 3 µA IIN_I 2 C Input current I 2C shut down VSEL(7) = low, EN = high 100 120 µA UVLO Under voltage rising threshold VIN rising 2.6 2.8 V UVLOHYST UVLO hysteresis 0.26 V OVPR Over voltage rising threshold 6.25 6.75 V OVPF Over voltage falling threshold 5.75 6.2 V Reference Voltage VREFMIN Minimum reference voltage VSEL(6:0) = 00h 0.588 0.6 0.612 V VREFMEAN Mean reference voltage VSEL(6:0) = 40h 0.888 0.9 0.912 V VREFMAX Maximum reference voltage VSEL(6:0) = 7Fh 1.184 1.195 1.206 V TSS VREF slew rate SLEW: Ctrl2(2:0) = 011 3 4 5.5 mV/μs THICCUP Hiccup time VOUT = 0.2V 1.5 ms Output Voltage VOUT Default VOUT Target based on option: 00 = 0.8V, 01 = 0.9, 10 = 0.95, 11 = 0.97. Measured with respect to target voltage. ‐1.5 0 1.5 % Line regulation VIN from 3V to 5.5V, ILOAD = 1A. Note 1 0.1 % Load regulation ILOAD = 0A to 5A. Note 1 ‐0.23 %/A VOUT input current 0 1 µA VOUV VOUT under VOUT below this threshold will 77 82 85 %VREF |
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