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ADP170AUJZ-2.5-R7 데이터시트(PDF) 9 Page - Analog Devices |
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ADP170AUJZ-2.5-R7 데이터시트(HTML) 9 Page - Analog Devices |
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9 / 20 page ![]() ADP170/ADP171 Rev. B | Page 9 of 20 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) –30 –40 –50 –60 –70 –80 –90 300mA 200mA 100mA 10mA 1mA Figure 17. Power Supply Rejection Ratio vs. Frequency, VOUT = 3.0 V 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) –30 –40 –50 –60 –70 –80 –90 3V, 1mA 1.8V, 1mA 0.8V, 1mA 3V, 300mA 1.8V, 300mA 0.8V, 300mA Figure 18. Power Supply Rejection Ratio vs. Frequency, Various Output Voltages and Load Currents 0.01 0.1 1 10 10 100 1k 10k 100k FREQUENCY (Hz) 0.8V VIN = 3.6V ILOAD = 10mA COUT = 1µF 1.8V 3.0V Figure 19. Output Noise Spectrum 0 10 20 30 40 50 60 70 0.001 0.01 0.1 1 10 100 1000 LOAD CURRENT (mA) 3V 1.8V 0.8V Figure 20. RMS Noise vs. Load Current and Output Voltage CH1 200mA Ω CH2 50.0mV B W M40.00µs A CH1 124mA 1 2 T 160.680µs ILOAD VOUT VIN = 3.6V VOUT = 1.8V 1mA TO 300mA LOAD STEP, 2.5A/µs Figure 21. Load Transient Response, CIN and COUT = 1 μF CH1 200mA Ω CH2 50.0mV B W M40.0µs A CH1 204mA 1 2 T 159.800µs ILOAD VOUT VIN = 3.6V VOUT = 1.8V 1mA TO 300mA LOAD STEP, 2.5A/µs Figure 22. Load Transient Response, CIN and COUT = 4.7 μF |
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