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ACT8870QJ-T Scheda tecnica(PDF) 16 Page - Active-Semi, Inc |
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ACT8870QJ-T Scheda tecnica(HTML) 16 Page - Active-Semi, Inc |
16 / 43 page ACT8870QJ-T Rev 3.0, 02-Oct-2017 Innovative PowerTM www.active-semi.com ActiveSwitcherTM is a trademark of Active-Semi. Copyright © 2016-2017 Active-Semi, Inc. I2CTM is a trademark of NXP 16 LDO1 ELECTRICAL CHARACTERISTICS (VIN_LDO1 = 5V, TA = 25°C, unless otherwise specified.) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Operating Voltage Range 2.4 5.5 V Output Voltage Range–VSET Configurable in 25mV steps 0.8 4.0 V Output Current VIN_LDO1 = 2.8V to 5.5V, LDO1_ILIM=11 0.75 A Output Current VIN_LDO1 = 2.4V to 2.8V, LDO1_ILIM=1x 0.4 A Output Voltage Accuracy VIN_LDO1 - VLDO1_OUT > 0.4V -1 VSET 1 % Line Regulation VIN_LDO1 - VLDO1_OUT > 0.4V VIN_LDO1 = 2.8V to 5.5V ILDO1_OUT = 1mA 0.005 % / V Load Regulation ILDO1_OUT = 1mA to 750mA, LDO1_ILIM=11 0.15 % / A Power Supply Rejection Ratio f = 1kHz, ILDO1_OUT = 20mA, VLDO1_OUT = 2.5V 54 dB f = 10kHz, ILDO1_OUT = 20mA, VLDO1_OUT = 2.5V 53 f = 2.25MHz, ILDO1_OUT = 20mA, VLDO1_OUT = 2.5V 44 Supply Current per Output Regulator Enabled No Load 25 42 µA Regulator Disabled 0 1 Soft-Start Period VLDO1_OUT = 1.8V Setting (10% to 90%) LDO1 SS_RAMP=00 LDO1 SS_RAMP=01 LDO1 SS_RAMP=10 LDO1 SS_RAMP=11 240 330 450 575 µs VLDO1_OUT = 2.5V Setting (10% to 90%) LDO1 SS_RAMP=00 LDO1 SS_RAMP=01 LDO1 SS_RAMP=10 LDO1 SS_RAMP=11 Not allowed 385 465 600 VLDO1_OUT = 3.3V Setting (10% to 90%) LDO1 SS_RAMP=00 LDO1 SS_RAMP=01 LDO1 SS_RAMP=10 LDO1 SS_RAMP=11 Not allowed 450 525 660 Power Good Threshold VLDO1_OUT Rising 92 93 94 %VNOM Power Good Hysteresis VLDO1_OUT Falling 3 %VNOM Overvoltage Fault Threshold VLDO1_OUT Rising 105 110 114 %VNOM Overvoltage Fault Hysteresis VLDO1_OUT Falling 3 %VNOM Discharge Resistance 10 25 75 Ω Dropout Voltage ILDO1_OUT = 200mA 200 mV Dropout Voltage ILDO1_OUT = 400mA, LDO1_ILIM=1x 300 mV Dropout Voltage ILDO1_OUT = 750mA VIN_LDO1 > 2.8 LDO_ILIM=11 400 mV Output Current Limit LDO1_ILIM=00 LDO1_ILIM=01 LDO1_ILIM=10 LDO1_ILIM=11 (800mA min) -15% 350 500 630 1000 +15% mA Startup Delay Additional startup delay required before soft start ramp LDO1_SS_RAMP=00 31 44 65 µs |
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