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ADP7185ACPZN2.5-R7 数据表(PDF) 3 Page - Analog Devices |
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ADP7185ACPZN2.5-R7 数据表(HTML) 3 Page - Analog Devices |
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3 / 19 page  Data Sheet ADP7185 Rev. 0 | Page 3 of 19 SPECIFICATIONS VIN = (VOUT − 0.5 V) or −2 V (whichever is more negative), EN = VIN, IOUT = −10 mA, CIN = COUT = 4.7 μF, CAFB = 10 nF, CA = CREG = 1 μF, TA = 25°C for typical specifications, and TJ = −40°C to +125°C for minimum/maximum specifications, unless otherwise noted. Table 1. Parameter Symbol Test Conditions/Comments Min Typ Max Unit INPUT VOLTAGE RANGE VIN −2.0 −5.5 V LOAD CURRENT ILOAD −500 mA OPERATING SUPPLY CURRENT IGND IOUT = 0 μA −0.6 −0.90 mA IOUT = −500 mA −5.5 −7.0 mA SHUTDOWN CURRENT IGND-SD EN = GND, VIN = −5.5 V −2 −7 μA OUTPUT NOISE1 OUTNOISE 10 Hz to 100 kHz, CAFB = 1 nF 7 μV rms 10 Hz to 100 kHz, CAFB = 10 nF 5 μV rms 100 Hz to 100 kHz, CAFB = 1 nF 6 μV rms 100 Hz to 100 kHz, CAFB = 10 nF 4 μV rms NOISE SPECTRAL DENSITY1 OUTNSD 100 Hz, CAFB = 1 nF 300 nV/√Hz 100 Hz, CAFB = 10 nF 100 nV/√Hz 10 kHz to 1 MHz, CAFB=1 nF to 1 μF 20 nV/√Hz POWER SUPPLY REJECTION RATIO1 PSRR IOUT = −500 mA, VOUT = −3.3 V, VIN = −3.8 V At 1 kHz 80 dB At 10 kHz 68 dB At 100 kHz 50 dB At 1 MHz 40 dB OUTPUT VOLTAGE VOUT –0.5 –4.5 V Accuracy IOUT = −10 mA, TA = 25°C –0.5 +0.5 % −1 mA < IOUT < −500 mA, VIN = (VOUT − 0.5 V) to −5.5 V –2.2 +2.2 % OUTPUT VOLTAGE REFERENCE FEEDBACK VAFB Adjustable model voltage reference −0.489 −0.5 −0.511 V VAFB Accuracy Adjustable model, −1 mA < IOUT < −500 mA, VIN = (VOUT − 0.5 V) to −5.5 V −2.2 +2.2 % LINE REGULATION ΔVOUT/∆VIN VIN = (VOUT − 0.5 V) to −5.5 V −0.1 +0.3 %/V LOAD REGULATION2 ∆VOUT/∆IOUT IOUT = −1 mA to −500 mA 0.6 1.8 %/A INPUT BIAS CURRENT SENSE SENSEI-BIAS −1 mA < IOUT < −500 mA, VIN = (VOUT − 0.5 V) to −5.5 V −10 nA VAFB VAFB-BIAS −1 mA < IOUT < −500 mA, VIN = (VOUT − 0.5 V) to −5.5 V −10 nA DROPOUT VOLTAGE3 VDROPOUT IOUT = −100 mA −30 −60 mV IOUT = −500 mA −190 −360 mV PULL-DOWN RESISTANCE VEN = 0 V Output Voltage VOUT-PULL VOUT = −1 V 280 Ω Regulated Input Supply Voltage VREG-PULL VREG = −1 V 1.3 kΩ Low-Noise Reference Voltage VA-PULL VA = −1 V 61 Ω START-UP TIME4 TSTART-UP VOUT = −4.5 V, CAFB = 1 nF, CA = 1 μF 15 ms VOUT = −4.5 V, CAFB = 10 nF, CA = 1 μF 55 ms VOUT = −1.2 V, CAFB = 1 nF, CA = 1 μF 4 ms VOUT = −1.2 V, CAFB = 10 nF, CA = 1 μF 10 ms VOUT = −0.5 V, no CAFB, CA = 1 μF 1.5 ms CURRENT-LIMIT THRESHOLD5 ILIMIT −600 −900 −1100 mA THERMAL SHUTDOWN Threshold TSSD TJ rising 150 °C Hysteresis TSSD-HYS 15 °C |
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