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LP3983 Datasheet(PDF) 3 Page - Lowpower Semiconductor inc |
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LP3983 Datasheet(HTML) 3 Page - Lowpower Semiconductor inc |
3 / 8 page LP3983 LP3983-datasheet Oct.-2005 3-3 Electrical Characteristics (VIN = VOUT + 1V, CIN = COUT = 1µF, CBP = 22nF, TA = 25° C, unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Units Output Voltage Accuracy Δ VOUT IOUT = 1mA − 2 -- +2 % Current Limit ILIM RLOAD = 1Ω 360 400 mA Quiescent Current IQ VEN ≥ 1.2V, IOUT = 0mA 90 130 μ A IOUT = 100mA, VOUT > 2.8V 80 100 Dropout Voltage VDROP IOUT = 300mA, VOUT > 2.8V 110 150 mV Reference Voltage Vset 1.19 1.23 1.27 V Line Regulation Δ VLINE VIN = (VOUT + 1V) to 5.5V, IOUT = 1mA 0.3 % Load Regulation Δ VLOAD 1mA < IOUT < 300mA 0.6 % Standby Current ISTBY VEN = GND, Shutdown 0.01 1 μ A Reference Voltage Vset 1.2 1.23 1.26 V EN Input Bias Current IIBSD VEN = GND or VIN 0 100 nA Logic-Low Voltage VIL VIN = 3V to 5.5V, Shutdown 0.4 EN Threshold Logic-High Voltage VIH VIN = 3V to 5.5V, Start-Up 1.5 V Output Noise Voltage eNO 10Hz to 100kHz, IOUT = 200mA COUT = 1µF 100 uVRMS Power Supply f = 100Hz PSRR − 70 Rejection Rate f = 10kHz COUT = 1µF, IOUT = 10mA − 55 dB Thermal Shutdown Temperature TSD 165 ° C |
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