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LTC3101EUF-TRPBF Datasheet(PDF) 4 Page - Linear Technology |
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LTC3101EUF-TRPBF Datasheet(HTML) 4 Page - Linear Technology |
4 / 34 page LTC3101 4 3101fb ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VUSB1 = VUSB2 = VBAT1 = VBAT2 = 3V and VOUT3 = 3.3V, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS N-Channel Switch Leakage VSW3A,B = VUSB1,2 = VBAT1,2 = VOUT3 = 5.5V 0.1 5 μA P-Channel Switch Leakage VSW3A,B = 0V, VUSB1,2 = VBAT1,2 = VOUT3 = 5.5V 0.1 10 μA Power Good Threshold VFB3 Falling l –11.5 –8.5 –5.5 % Power Good Hysteresis 2.5 % MAX Output Current Limit VMAX = 2.0V l 200 300 mA Switch Resistance From BAT2 to MAX From USB2 to MAX 0.890 0.930 Ω Ω Load Dependent Supply Current 1.0 μA/mA LDO Output Output Voltage ILDO = 1mA l 1.755 1.800 1.845 V Current Limit VLDO = 1.0V l 50 110 mA Line Regulation Input Voltage (VMAX) = 1.8V to 5.5V, ILDO = 1mA 0.1 % Load Regulation ILDO = 1mA to 50mA 0.9 % Reverse Current in Shutdown VBAT1,2 = VUSB1,2 = 0V, VLDO = 1.8V 0.1 1 μA Load Dependent Supply Current 12 μA/mA Dropout Voltage VMAX = 1.75V, ILDO = 10mA 25 mV Hot Swap Output Switch Resistance 0.730 Ω Switch Current Limit VHSO = 2.0V l 100 150 mA Pushbutton Logic and μP Reset Generator PBSTAT Deglitching Duration 15 24 ms PBSTAT Low Voltage IPBSTAT = 1mA 20 50 mV RESET Low Voltage IRESET = 1mA 20 50 mV CRS Pin Charging Current 0.9 1.0 1.1 μA CRS Pin Threshold Voltage VCRS Rising 1.176 1.200 1.224 V Logic Inputs PWRKEY, PWRON, PWM Input Logic Threshold l 0.3 0.7 1.0 V PWRKEY Pull-Up Resistance 400 kΩ PWRON Pull-Down Resistance 4.0 MΩ Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The LTC3101 is guaranteed to meet performance specifications from 0°C to 85°C. Specifications over the –40°C to 85°C operating temperature range are ensured by design, characterization and correlation with statistical process controls. Note 3: Current measurements are performed when the LTC3101 is not switching. The current limit values measured in operation will be somewhat higher due to the propagation delay of the comparators. Note 4: The LTC3101 is tested in a proprietary non-switching test mode that internally connects the error amplifiers in a closed-loop configuration. Note 5: This IC includes overtemperature protection that is intended to protect the device during momentary overload conditions. Junction temperature will exceed 125°C when overtemperature protection is active. Continuous operation above the specified maximum operating junction temperature may impair device reliability. |
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