전자부품 데이터시트 검색엔진 |
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ADP150 데이터시트(PDF) 9 Page - Analog Devices |
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ADP150 데이터시트(HTML) 9 Page - Analog Devices |
9 / 20 page ADP150 Rev. A | Page 9 of 20 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) IOUT = 100µA IOUT = 1mA IOUT = 10mA IOUT = 100mA IOUT = 150mA VIN = VOUT + 0.5V VRIPPLE = 50mV CIN = COUT = 1µF Figure 17. Power Supply Rejection Ratio (PSRR) vs. Frequency, VOUT = 3.3 V, VIN = 3.8 V –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) VOUT = 1.8V, IOUT = 100µA VOUT = 2.8V, IOUT = 100µA VOUT = 3.3V, IOUT = 100µA VOUT = 1.8V, IOUT = 150mA VOUT = 2.8V, IOUT = 150mA VOUT = 3.3V, IOUT = 150mA VIN = VOUT + 0.5V VRIPPLE = 50mV CIN = COUT = 1µF Figure 18. Power Supply Rejection Ratio (PSRR) vs. Frequency Various Output Voltages and Load Currents –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) VIN = 3.8V, IOUT = 1mA VIN = 4.3V, IOUT = 1mA VIN = 5.3V, IOUT = 1mA VIN = 3.8V, IOUT = 150mA VIN = 4.3V, IOUT = 150mA VIN = 5.3V, IOUT = 150mA VRIPPLE = 50mV CIN = COUT = 1µF Figure 19. Power Supply Rejection Ratio (PSRR) vs. Frequency with Various Headroom Voltages (VIN − VOUT), VOUT = 3.3 V 15 13 11 9 7 5 3 1 0.001 0.01 0.1 1 10 100 1k IOUT (mA) VOUT = 3.3V VOUT = 2.8V VOUT = 1.8V Figure 20. Output RMS Noise vs. Load Current (IOUT) and Output Voltage (VOUT), VIN = 5 V, COUT = 1 µF 1 0.01 0.1 10 100 1k 10k 100k FREQUENCY (Hz) VOUT = 1.8V VOUT = 2.8V VOUT = 3.3V Figure 21. Output Noise Spectrum, VIN = 5 V, ILOAD = 10 mA, COUT = 1 μF CH1 100mA CH2 50mV M40µs A CH1 112mA T 117.560µs 1 2 T IOUT 1mA TO 150mA LOAD STEP VOUT VIN = 3.7V VOUT = 3.3V Figure 22. Load Transient Response, COUT = 1 µF |
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