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ACT8941A Datasheet(PDF) 17 Page - Active-Semi, Inc |
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ACT8941A Datasheet(HTML) 17 Page - Active-Semi, Inc |
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17 / 42 page  ACT8941A Rev 0, 12-Mar-13 - 17 - www.active-semi.com ActivePMU TM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. Copyright © 2013 Active-Semi, Inc. Innovative PowerTM Active-Semi Proprietary―For Authorized Recipients and Customers LOW-NOISE LDO ELECTRICAL CHARACTERISTICS (VINL = 3.6V, COUT4 = COUT5 = COUT6 = COUT7 = 3.3µF, LOWIQ[ ] = [0], TA = 25°C, unless otherwise specified.) : VNOM refers to the nominal output voltage level for VOUT as defined by the Ordering Information section. 2 : IMAX Maximum Output Current. 3 : Dropout Voltage is defined as the differential voltage between input and output when the output voltage drops 100mV below the regulation voltage (for 3.1V output voltage or higher) : LDO current limit is defined as the output current at which the output voltage drops to 95% of the respective regulation voltage. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Operating Voltage Range 2.5 5.5 V Output Voltage Accuracy VOUT ≥ 1.2V, TA = 25°C, IOUT = 10mA -1% VNOM 2% V VOUT < 1.2V, TA = 25°C, IOUT = 10mA -2% VNOM 4% Line Regulation VINL = Max (VOUT + 0.5V, 3.6V) to 5.5V LOWIQ[ ] = [0] 0.05 VINL = Max (VOUT + 0.5V, 3.6V) to 5.5V LOWIQ[ ] = [1] 0.5 Load Regulation IOUT = 1mA to IMAX2 0.08 V/A Power Supply Rejection Ratio f = 1kHz, IOUT = 20mA, VOUT =1.2V 75 dB f = 10kHz, IOUT = 20mA, VOUT =1.2V 65 Supply Current per Output Regulator Enabled, LOWIQ[ ] = [0] 37 60 µA Regulator Enabled, LOWIQ[ ] = [1] 31 52 Regulator Disabled 0 1 Soft-Start Period VOUT = 2.9V 140 µs Power Good Threshold VOUT Rising 89 % Power Good Hysteresis VOUT Falling 3 % Output Noise IOUT = 20mA, f = 10Hz to 100kHz, VOUT = 1.2V 50 µVRMS Discharge Resistance LDO Disabled, DIS[ ] = 1 1.5 kΩ REG4 Dropout Voltage IOUT = 80mA, VOUT > 3.1V 90 180 mV Maximum Output Current 320 mA Current Limit VOUT = 95% of regulation voltage 400 mA Stable COUT4 Range 3.3 20 µF REG5 Dropout Voltage IOUT = 80mA, VOUT > 3.1V 140 280 mV Maximum Output Current 320 mA Current Limit VOUT = 95% of regulation voltage 400 mA Stable COUT5 Range 3.3 20 µF REG6 Dropout Voltage IOUT = 80mA, VOUT > 3.1V 90 180 mV Maximum Output Current 320 mA Current Limit VOUT = 95% of regulation voltage 400 mA Stable COUT6 Range 3.3 20 µF REG7 Dropout Voltage IOUT = 80mA, VOUT > 3.1V 140 280 mV Maximum Output Current 320 mA Current Limit VOUT = 95% of regulation voltage 400 mA Stable COUT7 Range 3.3 20 µF mV/V |
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